MIL-DTL-32139 NANO D CONNECTORS

In addition to the standard range of Micro-D connectors and assemblies, Sunkye is able to offer small electrical pin Nano-D connectors and assemblies based on the highly reliable Twist Pin contact technology.

Description of MIL-DTL-32139 Nano D Connectors

MIL-DTL-32139 nanod connector are ideal solutions for applications including aerospace, military, industrial, medical or off-shore which require extreme miniaturization, space or weight saving and reliability. Sunkye’s nano miniature D-sub connectors meet the requirements of MIL-DTL-32139.

The Twist Pin contact of mini electrical connector by its design and performance enables the system to meet the most severe requirements – often significantly more so than stipulated in the MIL-DTL-83513 and MIL-DTL-32139 standards. The male Micro-D contact is made up of 10 strands of beryllium-copper and copper alloy twisted together, welded then bumped. These sprung strands are in fact compressed during insertion into the turned female contact and therefore a high number of electrical contact points are permanently assured while retaining flexibility and ease of insertion/extraction. The bulged point will be compressed inside the socket during insertion. Insertion and retention performance of the twist pin and socket mated pair. Both socket contact chamfer and twist pin hemispherical radius contribute to ensuring adequate insertion even in case of misalignment. As a professional nano connector supplier, Sunkye offers top-quality nano connectors for sale. Feel free to contact us for more information.

Different configurations Sunkye’s range of Nano D-sub connectors is available in several different configurations:

– Rectangular Nano D-sub connectors for cables.

– Rectangular Nano D-sub connectors for PCBs.

– EMI versions.

– High-density microminiature D connectors.

Characteristics of MIL-DTL-32139 Nano Miniature Connectors

– 0.635 mm (.025″) contact spacing (double the density of a Micro-D).

– The number of contacts: 9, 15, 21, 25, 31, 37 and 51.

– double row.

– High-reliability twist pin contacts.

– Metal shell construction with captivated hardware.

Sunkye has also developed custom-designed Nano miniature connectors:

– High density circular Nano miniature connectors.

Special nanominiature connectors available on request.

MIL-DTL-32139 Nano D Connector Specifications

CHARACTERISTIC	SPECIFICATION	TEST METHOD
CURRENT RATING	1 A max.	EIA-364-70
CONTACT RESISTANCE	21 mΩ max.	EIA-364-06
INSULATION RESISTANCE	5000 MΩ min.@ 100 Vdc	EIA-364-21
DIELECTRIC WITHSTANDING VOLTAGE	250 Vac	EIA-364-20
– SEA LEVEL 0 m	100 Vac
– ALTITUDE 21 km (70,000 ft)
CONTACT ENGAGING AND	141 g max. (5 oz)	EIA-364-37
SEPARATION FORCE	11 g min. (0.4 oz)
CONNECTOR MATING AND	198 g (7 oz) x number of contacts max.	EIA-364-13
DE-MATING FORCE
CONTACT RETENTION	0.9 kg (2 lbs) for 5 seconds min.	EIA-364-29
DURABILITY	200 mating cycles min.	EIA-364-09
TEMPERATURE RANGES
– STANDARD	-55°C / +150°C
– HIGH TEMP	-55°C / +200°C
VIBRATION	10Hz-2000Hz 196m/s²	EIA-364-28 – TEST CONDITION IV
SHOCK	980m/s² 6ms	EIA-364-27 – TEST CONDITION G
SALT SPRAY	48 hours	EIA-364-26 – TEST CONDITION B
HUMIDITY	Insulation resistance > 1MΩ	EIA-364-31 – TEST CONDITION B

Description of Micro Wireless Backshell Connector

This type of device is designed to provide screening, sealing, and reparability. Micro-D EMI backshells connect cable shields to Micro-D connectors, providing strain relief and mechanical protection. Engineered to help resist corrosion and fit a wide range of circular connectors, backshell and adapter components help protect connections from mechanical wear, environmental conditions, and electromagnetic interference (EMI). These micro d connector backshell are made out of aluminum alloy. Electroless nickel is the most widely used finish. These backshells are compatible with industry- standard metal shell M83513 type connectors. These M83513 backshell are available with and without screen termination, providing long-term, high performance in sealed and unsealed electronics systems.

Removable jackscrews according to MIL-DTL-83513/05

For pigtail crimping & solder cup connectors only.

2 sizes of hardware: one version for shell sizes from 9 to 69 ways and another version for the 100-way shell size.

1 kit consists of 2 screws and 2 e-rings.

Hex socket head or slot head.

Material: passivated 300 series stainless steel

Contact arrangements of Micro Wireless Backshell Connector

Metal shell: 9, 15, 21,25,31,37,51,66,74, 100 contacts

Plastic shell: 9, 15, 21,25,31,37, 51 contacts

MICRO-D EMI BACKSHELL of Micro-D Connector Backshell

– Micro-D aluminum backshell for EMI termination.

– Supplied with stainless steel hardware.

– Various entry sizes & shapes.

– Available for standard and micro termination.

– Shell size from 9 to 100.

Contacts *Twist pin contacts, high density interconnection, Beryllium copper (BeCu), gold over nickel plating

The thickness of Gold plating * ≥1.27micron

TWIST PIN * Male contact, fitted to plug connector.

Socket * Female contact, fitted to socket connector (also known as socket).

Insulator* 20% GFPPS (20% glass filled polyphenylene sulfide)

Insert * Moulded insulation housing, separating each connection.

Interfacial Seal * Fitted to socket connector only

Shell *Connector metal body plated nickel or cadmium.

Jackscrew *High or low profile, hexagonal socket or slotted head.

Jackpot* Mates with jackscrew.

LCP * Liquid Crystal Polymer.

Potting * Epoxy compound used as an encapsulant.

Introduction of Micro Wireless Backshell Connector

Series * Micro D Connector

Terminal Mounting * Crimping wireless connector

Standard connector * Manufactured to the standard dimensions and specifications.

Special connector * A standard connector modified to meet specific requirements.

Custom-made connector * Designed to meet specific customer requirements.

Pigtail connector * Connector with insulated or uninsulated wires.

Harness * Multi-branched cable assembly.

MICRO SOLDER CUP CONNECTORS

Sunkye Micro D solder cup terminal pin connector with the rectangular package, feature gold-plated BeCu Twist Pin contacts for best performance. Sunkye Micro solder cup connector matching with MIL-DTL-83513 and accept standard jackscrews and jackpots, making it ideal for applications, which widely used in the military area, aerospace, aviation, electrical, ship-building, defense system, etc.

Description of Micro Solder Cup Connectors

METAL SHELL of Micro Solder Cup Connectors

Metal shell recommended for environmental and EMI applications.

Ideal for prototyping or where pigtail type connectors cannot be used.

PLASTIC SHELL of Micro Solder Cup Connectors

Ideal for prototyping or where pigtail type connectors cannot be used.

Plastic connector and solder cup contacts.

Ideal for prototyping or where pigtail type connectors cannot be used.

Operating temperature: 150°C or 200°C.

9 to 51 contacts.

Contact arrangements of Micro Solder Cup Connectors

Metal shell: 9, 15, 21,25,31,37,51,66,74, 100 contacts

Plastic shell: 9, 15, 21,25,31,37, 51 contacts

Introduction of Micro Solder Cup Connectors

Series * Micro D Connector

Terminal Mounting * Solder Cup type

Contacts *Twist solder cup terminal PIN contacts, high-density interconnection, Beryllium copper (BeCu), gold over nickel plating

The thickness of Gold plating * ≥1.27micron

TWIST solder cup terminal PIN * Male contact, fitted to plug connector.

Socket * Female contact, fitted to socket connector (also known as a socket).

Insulator* 20% GFPPS (20% glass-filled polyphenylene sulfide)

LCP * Liquid Crystal Polymer.

Potting * Epoxy compound used as an encapsulant

Insert * Moulded insulation housing, separating each connection.

Interfacial Seal * Fitted to socket connector only

Shell *Connector metal body plated nickel or cadmium.

Jackscrew *High or low profile, hexagonal socket or slotted head.

Jackpot* Mates with a jackscrew.

Standard connector * Manufactured to the standard dimensions and specifications.

Special connector * A standard connector modified to meet specific requirements.

Custom made connector * Designed to meet specific customer requirements.

Solder cup connector * Connector with solder type contacts, usually used for prototyping.

MICRO SEALED CONNECTORS

Sunkye Military/Space grade Micro-D sealed/ hermetic connectors are based on the highly reliable twist pin contact technology with a rectangular package for best performance. Sealed panel mount connectors are an ideal interconnect solution for heavy-duty and harsh-environment applications.

Description of Micro Sealed Connectors

Hermetic micro D connectors are used in applications where an enclosure needs to be isolated from the outside environment. Panel feed-through is the main application for this type of miniature sealed connectors. In the vast majority of applications, the use of a hermetic encapsulant offers sufficient levels of hermeticity at a reasonable price. Only extreme environments require glass-to-metal sealing.

Furthermore, Sunkye fully tests its hermetic micro d connector solutions to provide reliability and satisfaction to its customers. Helium leak rate is the most common and most reliable method to quantify a small leak. Based on its expertise, Sunkye can also design tailor-made connectors to fit your application needs.

By mounting the flange to the panel, all Sunkye hermetically sealed electrical connectors can be used to maintain low or high pressure vacuum seals. They are fully compatible with standard Micro-D connectors. A wide range of products is already available, however, custom interconnect solutions can be designed for specific panel cut-outs and thicknesses.

Performance of Micro Sealed Connectors

Contact Pitch * 0.050˝ (1.27 mm)

TEMPERATURE RANGES *

– STANDARD    -55°C / +150°C

– HIGH TEMP    -55°C / +200°C

Vibration * 10Hz-2000Hz, 196m/s2

Air Leakage Rate * 1*10-3Pa.cm3/s

Contact arrangements of Micro Sealed Connectors

Metal shell: 9, 15, 21,25,31,37,51,66,74, 100 contacts

Plastic shell: 9, 15, 21,25,31,37, 51 contacts

Features of Micro Sealed Connectors

Terminal Mounting: Solder Cup mounting

High performance hermetic metal connector and PTFE wire with male Twist Pin or female connector.

Socket: Female contact, fitted to socket connector (also known as socket).

Insulator: 20% GFPPS (20% glass filled polyphenylene sulfide)

Insert: Moulded insulation housing, separating each connection.

Interfacial Seal: Fitted to socket connector only

Shell: Connector metal body plated gold.

Thickness of Gold plating:  ≥1.27micron

Jackscrew: High or low profile, hexagonal socket or slotted head.

Jackpot: Mates with jackscrew.

LCP: Liquid Crystal Polymer.

Potting: Epoxy compound used as an encapsulant.

Standard connector * Manufactured to the MIL DTL 83513 standard dimensions and specifications.

Hermetic feed through connectors: Micro-D hermetic feed through is only available as rear panel mount connectors. Specific jackpots are used to secure the feed through on the panel.

Sealed Connector: widely Apply for the various industry which requestes for air leak flow of connector environment.

MICRO RIGHT ANGLE PCB CONNECTOR D-SUB TYPE

The right angle board to board connector features gold-plated BeCu Twist Pin contacts for best performance. Sunkye right angle d sub connector matches with MIL-DTL-83513 standard and accept standard jackscrews and jackpots, available in metal shell version. It is also environmentally sealed.

Description of Micro Right Angle PCB Connector D-sub Type

Right angle D-sub connectors are type of MIL-DTL 83513 Micro-D connectors that are bulky and durable, which made them suitable for being applied in harsh environments where durability is extremely important. They can also be compatible with many old-fashioned devices. For these advantages, right angle D-sub connector is widely used in factories, manufacturing workshops and industrial environments.

Micro D-sub right angle PCB connector is most frequently used connector for flexible and rigid printed circuit boards. Several tail lengths available makes it ideal for flex-to-board applications, which widely used in the military area, aerospace, aviation, electrical, ship-building, defense system, etc. PCB right angle connector is a kind of mil spec D sub connector, which is specially applied to connect and fix printed circuit boards. It usually adopts pin-in type and has super-strong clamping force of FPC cable.

Performance of Micro D-sub Right Angle PCB Connector

Contact Pitch * 0.050˝ (1.27 mm)

TEMPERATURE RANGES *

– STANDARD  -55°C / +125°C

Contact arrangements of Micro D-sub Right Angle PCB Connector

Metal shell: 9, 15, 21,25,31,37,51,66,74, 100 contacts

Plastic shell: 9, 15, 21,25,31,37, 51 contacts

Introduction of Micro D-sub Right Angle PCB Connector

Series * Micro D Connector

Terminal Mounting * D-sub PCB Type 90°angle to PCB type (also known as right angle to PCB type)

PCB Tail Length * Standard & special custom length

PCB Layout * 1.27*2.54mm & 2.54mm*2.54mm

Contacts *Twist pin contacts, high density interconnection, Beryllium copper (BeCu), gold over nickel plating

The thickness of Gold plating * ≥1.27micron

TWIST PIN * Male contact, fitted to plug connector.

Socket * Female contact, fitted to socket connector (also known as socket).

Insulator* 20% GFPPS (20% glass filled polyphenylene sulfide)

LCP * Liquid Crystal Polymer.

Potting * Epoxy compound used as an encapsulant.

Insert * Moulded insulation housing, separating each connection.

Interfacial Seal * Fitted to socket connector only

Shell *Connector metal body plated nickel or cadmium.

Jackscrew *High or low profile, hexagonal socket or slotted head.

Jackpot* Mates with jackscrew.

Standard PCB right angle connector* Manufactured to the standard dimensions and specifications.

Special PCB right angle connector* A standard connector modified to meet specific requirements.

Custom-made PCB right angle connector* Designed to meet specific customer requirements.

D-sub PCB connector * widely apply for the different industry and application.

D-sub Right Angle PCB connector * Board Right Angle connector and Condensed Board Right Angle connector.

D-sub Straight PCB connector * Board Straight connector.

MICRO PCB CONNECTORS

PCB electrical connectors are mounted on the PCB and are typically used for PCB to PCB interconnection, or to transfer to or from the PCB from another source within the unit. Sunkye Military/Space grade Micro PCB connectors qualified with MIL-DTL-83513 standard, with standard jackscrews and jackpots, making it ideal for flex-to-board applications, which widely used in the military area, aerospace, aviation, electrical, ship-building, UAV, Radar, defense system etc.

Description of Micro PCB Connectors

A “PCB” or Printed Circuit Board connects electrical components on a conductive track or between pads on the board. Some devices hold more than one PCB and will utilise a variety of PCB to PCB connectors to build a connection between the boards. Designed to connect printed circuit boards in a variety of settings, high voltage PCB connectors securely transmit signal and power between boards.

Performance of Micro PCB Connectors

Contact Pitch * 0.050˝ (1.27 mm)

TEMPERATURE RANGES *

– STANDARD    -55°C / +150°C

– HIGH TEMP    -55°C / +200°C

Random vibration * Power spectrum density 0.4G2/Hz root mean square value of total acceleration 23.1G

Shock: 735m/s2

Contact arrangements of Micro PCB Connectors

Metal shell: 9, 15, 21,25,31,37,51,66,74, 100 contacts

Plastic shell: 9, 15, 21,25,31,37, 51 contacts

Introduction of Micro PCB Connectors

Series * Micro D Connector

Terminal Mounting * PCB Type Including Straight to PCB and 90°angle to PCB type

PCB Tail Length * Standard 3mm

PCB Layout * 1.27*2.54mm & 2.54mm*2.54mm

Contacts *Twist pin contacts, high density interconnection, Beryllium copper (BeCu), gold over nickel plating

The thickness of Gold plating * ≥1.27micron

TWIST PIN * Male contact, fitted to plug connector.

Socket * Female contact, fitted to socket connector (also known as socket).

Insulator* 20% GFPPS (20% glass filled polyphenylene sulfide)

Insert * Moulded insulation housing, separating each connection.

Interfacial Seal * Fitted to socket connector only

Shell *Connector metal body plated nickel or cadmium.

Jackscrew *High or low profile, hexagonal socket or slotted head.

Jackpot* Mates with jackscrew.

LCP * Liquid Crystal Polymer.

Potting * Epoxy compound used as an encapsulant.

Standard connector * Manufactured to the standard dimensions and specifications.

Special connector * A standard connector modified to meet specific requirements.

Custom made connector * Designed to meet specific customer requirements.

PCB connector * widely apply for the different industry and application.

Right Angle PCB connector * Board Right Angle connector and Condensed Board Right Angle connector.

Straight PCB connector * Board Straight connector.

MICRO CRIMP CONNECTORS

These Micro-D Crimp contact type connectors feature gold-plated Becu Twist Pin contacts for best performance, the sectional area of cable:0.1mm2~0.15mm2, 0.07mm2.

Description of Micro Crimp Connectors

An electrical crimp is a type of solder less electrical connection. Micro crimp connectors are typically used to terminate stranded wire. Crimping is normally performed by first inserting the terminal into the crimp tool. The terminal must be placed into the appropriately sized crimp barrel. Crimp-on connectors are attached by inserting the stripped end of a stranded wire into a portion of the connector, which is then mechanically deformed/compressed (crimped) tightly around the wire. Sunkye Micro crimp style connectors matching with standards MIl-DTL-83513 and accept standard jackscrews and jackpots, making it ideal for flex-to-board applications, which widely used in the military area, aerospace, aviation, electrical, ship-building, defense system, etc.

Performance of Micro Crimp Connectors

Contact Pitch * 0.050˝ (1.27 mm)

TEMPERATURE RANGES *

– STANDARD    -55°C / +150°C

– HIGH TEMP    -55°C / +200°C

Vibration * 10Hz-2000Hz, 196m/s2

Contact arrangements of Micro Crimp Connectors

Metal shell: 9, 15, 21,25,31,37,51,66,74, 100 contacts

Plastic shell: 9, 15, 21,25,31,37, 51 contacts

Introduction of Micro Crimp Connectors

Series * Micro D Connector

Terminal Mounting * Crimping Cable Assembly

Contacts *Twist pin contacts, high density interconnection, Beryllium copper (BeCu), gold over nickel plating

Thickness of Gold plating * ≥1.27micron

TWIST PIN * Male contact, fitted to plug connector.

Socket * Female contact, fitted to socket connector (also known as socket).

Insulator* 20% GFPPS (20% glass filled polyphenylene sulfide)

Insert * Moulded insulation housing, separating each connection.

Interfacial Seal * Fitted to socket connector only

Shell *Connector metal body plated nickel or cadmium.

Jackscrew *High or low profile, hexagonal socket or slotted head.

Jackpot* Mates with jackscrew.

Cable * AFR250 (PTFE) MIL-DTL-681

Wire length * ≤6 meters (Recommend)

Standard crimp style connectors * Manufactured to the standard dimensions and specifications.

Special crimp style connectors * A standard connector modified to meet specific requirements.

Custom-made crimp style connectors * Designed to meet specific customer requirements.

Pigtail crimp style connectors * Connector with insulated or uninsulated wires.

Harness * Multi-branched cable assembly.

LCP * Liquid Crystal Polymer.

Potting * Epoxy compound used as an encapsulant.

Frequently asked questions about Micro Crimp Connector

Are crimp style connectors good?

A good micro crimp connector can be used on solid or stranded conductors, and provides a good mechanical and electrical connection

Is it better to solder or crimp?

Crimping offers stronger, more reliable connections than soldering. Soldering uses heated metal to join the cable to the connector. Over time, this filler metal will degrade, which may cause the connection to fail. Most electricians will agree thatcrimping is also easier than soldering.

What is micro crimp style connectors used for？

Crimp connections are used typically to fix connectors, such as BNC connectors, to coaxial cables quickly, as an alternative to soldered connections. Typically the maleconnector is crimp-fitted to a cable, and the female attached, often using soldered connections, to a panel on equipment.

Mil spec connectors, also called military grade connectors/mil grade connectors or military style connectors or military standard connectors or military pcb connectors, have been developed to satisfy the market requirements for ultra-tiny size, high performance, great quality, and top qualified customized connector. Sunkye mil grade connector is widely applied for the board to board, system to system, application to application, equipment to equipment. Specially designed for extreme environments like the defense industry, but our mil spec connectors can also be used in a variety of commercial tasks. Our automotive terminal connectors can withstand the harsh conditions of the road and off-road transportation. The combination of Sunkye’s mil grade connectors provides reliable solutions for improving the connectivity of critical systems.

MIL-DTL-83513 Micro D Connectors

The Sunkye family of TwistPin equipped Micro-D subminiature mil grade connectors to offer outstanding mating performance, durability, and minimal contact resistance. Sunkye Micro D type mil grade connectors feature high-density micro TwistPin contacts set on 1.27mm centers in arrangements from 9 to 130 contacts. They are available with insulated and uninsulated wire, PCB, solder cup and flex terminations and are supplied as MIL-DTL-83513 or commercial variations. The standards of our military power connectors include 83513 Micro-D and COTS connectors provide a reliable solution for all high-performance interconnect requirements including high temperature and hermetic applications.

MIL-DTL-32139 Nano D Connectors

The MIL-DTL-83513 and MIL-DTL-32139 specifications define the minimum acceptable performance levels for Micro-D and Nano miniature connectors. While the specs are rigid in their performance benchmarks, manufacturers are given considerable leeway when it comes to contact design, crimp fabrication, contact finish and materialselection. Stamped and formed contacts, for example, are widely used in Micro-d connectors due to their low cost and ease of manufacture. But independent testing clearly shows that Twist Pin style contacts provide superior performance in such areas as high-temperature tolerance, contact retention and crimp strength. If you have already made the decision to use either a Micro-D or Nano mil grade connector because its ruggedized performance outweighs the potential cost-savings realized in a lesser-caliber connector, then you owe it to yourself to understand the very real differences between stamped pins and the Sunkye Twist Pin Contact System.

Twist Pin Connectors

Mil grade connectors with reduced pin spacing (less than 0.381mm) can save product design engineers much-needed PCB real estate. Sunkye answers the call with a series of Micro D (1.27*1.1mm) & Nano D (0.635*1.02mm) metric sockets and pins headers available in vertical and right angle configurations, with SMT and through-hole termination.

All Sunkye connectors are MIL-DTL compliant and are assembled with precision machined Becu twist pins assembled into high-temperature insulators. Through the combination of right angle pin headers plugged into vertical sockets, customers can create perpendicular mate configurations.

Explore Our Industry & Solutions

Automotive Electrical Connectors

Sunkye automotive connector allows customers to customize the configuration, make it easy to assemble, and further enhance flexibility, the ability to integrate local cables and components, and the ability to adapt to harsh environments.

Aerospace Electrical Connectors

Connectors are almost everywhere in aerospace applications. Sunkye’s connector uses advanced computer modeling to ensure optimal performance and then designs products that are easier to use, more reliable, and lower in actual cost.

Medical Grade Connectors

Electronic systems in medical devices and probes rely on sensor signals for precise control, diagnosis and treatment. Our connectors are designed and manufactured to strict standards to meet the stringent requirements of medical applications.

Oil And Gas And Marine Connectors

Sunkye produces mil-spec connectors focused on oil, gas, and marine applications that can adapt to the most demanding environments, including extreme temperatures, vibrations, and shocks.

Aircraft Connector/UAV Connector

The UAV connector is an important basic component. As a bridge to transmit signal and power, it must pass strict tests before it can be used in aircraft / UAV applications.

Medical Grade Connectors

Electronic systems in medical devices and probes rely on sensor signals for precise control, diagnosis and treatment. Our connectors are designed and manufactured to strict standards to meet the stringent requirements of medical applications.

Custom Connectors

Sunkye’s customized connector can be designed according to different needs, suitable for different special application environments, and improve industrial differentiation and product competitiveness.

Automation and Control Connectors

Coming soon.

For military connector manufacturers, in addition to their productivity, they also care about product quality. When it comes to product quality, many aspects will be involved, such as the performance of high-speed micro-pitch interconnects for connectors.

In general, there are nine main methods to improve the high-speed micro pitch connectors:

1. Connector products, in the early stages of design, need to perform multiple simulation cycles to accurately quantify product performance before starting an expensive processing process.

2. When the military grade connector is mated, the stub in the contact area should be minimized. The longer the stub, the better the reliability, but the stub is an electrical load like an antenna.

3. Simplify contact geometry and improve signal path performance.

4. Shorten the pin length to minimize the distance that the signal must travel.

5. Add asymmetric footprints and contacts as much as possible, because the alternating design reduces pair-wise crosstalk between rows of pins and between rows. It can also be said that footprint should drive connector performance.

6. Optimize the connector branch area (BOR). Think of the connector as a key node in the link, not only focusing on the node, but also the link.

7. Where space permits, incorporate a common ground plane into the connector.

8. The choice of plastic molding will obviously affect the performance of military type connectors. These attributes should be carefully considered: high-temperature plastics suitable for RoHS, matching Dk to obtain the required impedance control, dimensional stability of temperature and time.

• The shorter and straighter the contact between the signal path and the connector, the better its signal integrity. But the balance function is that the connector must have sufficient normal force and exit force, and it also needs to have a certain degree of robustness.

Waterproof Ip68 electrical connectors meets with International Protection Marking, IEC standard 60529.

Against test duration: 30 seconds in each of 4 angles (2 minutes total) and Water volume: 14–16 liters per minute.

Working Environment, Pressure: 8–10 MPa (80–100 bar) at a distance of 0.10–0.15 m

Water temperature: 80 °C.

Underwater approve.

Specification of Sunkye Waterproof Connector Ip68
Environment temperature	-55℃~+125℃
Vibration	10Hz~2000Hz, 196m/s²
Random vibration	Power spectrum density 0.4G²/Hz, root mean square value of total acceleration 23.1G
Shock	735m/s² 11sm
Rated current	3A
Contact resistance	≤10mW
Insulation resistance	≥5000MW
Dielectric strength	800V
Durability	500 times

The judgment standard for sealing performance of waterproof connectors is what we call IP waterproof grade standard. The latter two XX of ipxx refer to two numbers, the first X refers to the number 0 to 6, with the highest level of 6; the second X refers to the number 0 to 8, with the highest level of 8. Therefore, the highest waterproof level of waterproof connector is IP68. There are different standards for different IP waterproof grades, especially for IP68 waterproof grade test. Its test equipment, test conditions and test time should be recognized by both parties. The ip68 waterproof power cable connector provided by Sunkye are ip68 rated connectors, that are definitely underwater approved, which can be a good choice for you.