Quick lock thread with anti-loosening mechanism

100% Scoop- -proof to ensure no damage to the contacts in a blind mating application

With grounding reeds to strengthen emi/rfi shielding

Excellent performance of shock & vibration resistance

Good performance of fluid resistance

Widely used in aerospace, aviation & military system, especially for high impact vibration environment

MIL-DTL-38999 (formerly MIL C 38999 WIKI) describes four series of miniature, high density, bayonet, threaded, or breech coupling, circular, environment resistant, electrical connectors using removable crimp or fixed solder contacts, and are capable of operation within a temperature range of -65 to +200 degrees Celsius. Series III connectors are suitable for blind mating areas, and provide high-vibration characteristics at elevated temperature and are suitable for SWAMP areas with the proper connector accessories; (https://en.wikipedia.org/wiki/U.S._Military_connector_specifications)

Material of Sunkye MIL-DTL-38999-iii Connector

Shell: aluminum alloy, stainless steel, titanium alloy

Finish: olive drab cadmium (W), chemical nickel plating (F), stainless steel passivation (K), stainless steel nickel plating (S), titanium alloy electroless (TT)

Insulation Mounting Plate : thermoplast

Seal Ring: silicon rubber elastomer

Contact: copper alloy

Finish: nickel plated with gold

Mechanical Performance of Sunkye MIL-DTL-38999-iii Connector

Sinusoidal Vibration : 10-50Hz, speed 254mm/s

                                            50-140Hz, double -amplitude 1.5mm

                                            140-2000Hz, acceleration 588m/s²

Random Vibration : high temperature 96(m/s²)²/ Hz    408m/s²,100~1000Hz

Random Vibration : environment temperature480(m/s²)²/ Hz,100~300Hz

Shock : 2940m/s²  3ms

Durability : 500 mating cycles

Contact Retentivity (Min.):

                               #22D : 44N

                               #20 : 67N

                               #16 : 111N  

                               #12 : 111N

                               #8 coaxial : 111N

                               #8 triax : 111N

Mil-DTL-38999 Series III connector is a high-performance cylindrical connector that is designed for both general purpose and harsh environment applications. It adopts an enhanced “one turn” coupling system and self-locking screw thread to improve the durability of the coupling system, while the thicker wall and larger coupling surface area increase the strength and impact resistance. 38999 Series III connector can also be used for various shell materials and finishes (anode, zinc cobalt, aluminum, electroless nickel plating, olive cadmium, etc.).

For more information about MIL-DTL-38999 Series III connectors, click the “PDF Download” button above to see the details in the PDF file. If you have any difficulty searching for products, please contact us and Sunkye will help you find the best components for your application.

The high temperature and high pressure electrical connectors are designed to support the signal transmission of high voltage rating, and there is no safety risk for operators. In the design of connection system, the high-voltage electrical connectors shall have 360° shielding layer and be effectively connected with the cable shielding layer, which covers the whole connector length to ensure sufficient shielding function and minimize the resistance between shielding interfaces.

Brief Introduction of Sunkye High Temperature & High Pressure HTHP Connector Series

Type: Glass sintering adapter with single contact

Material: high temperature alloy shell, alloy contact,ceramic and glass insulator.

Mechanical Performance of Sunkye High Temperature & High Pressure HTHP Connector Series

Random vibration: 10Hz· 2000Hz, 0. 3G²/Hz, acceleration 20G, 200℃. 4h on direction X, Y, Z.

Shock: 490m²/s, 11ms

Electrical Performance of Sunkye High Temperature & High Pressure HTHP Connector Series

Dielectric withstanding voltage: 1000VDC, 60s, leak current ≤ 5mA

Normal temperature insulate resistance: 25000MΩ (500VDC, normal-tem.)

High temperature insulate resistance: 2500MΩ (500VDC, 200℃ )

Rated current: 1A continuous current

Environmental Performance of Sunkye High Temperature & High Pressure HTHP Connector Series

Temperature range: -55℃ to +200℃

Operating pressure: 0 MPa to 172.5 MPa

High temperature life: 200C, 600h

Temperature shock: -55℃ to 200℃, 15 cycles, the temperature switching time is ≤ 15 min.  

Salt spray: 24h

Air leak: helium leak test< 1x 103Pa.cm3/s

High temperature high pressure: 172.5MPa, 200℃ , 336 h

Sunkye nano right angle PCB connector series.

Contact number: 9, 15, 21, 25, 31, 37, 51, 65, 69.

With characters of High Density, Micro, Light, Highly Reliable.

This series adapts to the diversified needs of products shape.

3 kinds of tail length, customized produce for another length.

Working temperature environment: -55℃~+125℃.

Machine life: 200 times.

Brief introduction of R06 MIL-DTL-32139 Nano D Sub Connector

Contacts: 9,15,21,25,31,37 51,65,69

Twist flexible micro pin (twist pin), 0.635mm pitch, micro miniature outline dimension

Screw nut locking, it is gently when insert and extract, stably locked

It is used for all kinds for electric circuit system interconnection which have high density, micro, light, highly reliable requirement, it can meet light and miniaturize demand

Plug with twist pin, receptacle with socket, free terminal with locking screw, fixed terminal with nut, standard mated connector locked by screw and nut

Standard: MIL-DTL-32139

Undefined tolerance is±0.13

Specification of Sunkye R06 MIL-DTL-32139 Nano D-sub Right Angle PCB Connectors
Environment temperature: -55℃~+125℃	Contact resistance: ≤ 21mΩ
Vibration: 10Hz~2000Hz, 196m/s²	Insulation resistance: ≥ 5000MΩ 100VDC
Shock：980m/s²  6ms	Dielectric strength: 250V
Rated current: 1A	Durability: 200 times
Random vibration: Power spectrum density 0.4G²/Hz, r.m.s value of total acceleration 23.1G

Description of MIL-DTL-83513 Microminiature D Connectors

By its very design, the Micro-D connector system meets all the requirements of robustness, durability, low contact resistance, high current, dielectric strength, shock, and vibration. With 1.27 mm (.050″) contact spacing, Micro-D connectors, half the size of D type connectors (D series connectors), represent an excellent solution for saving both space and weight. In addition to a complete range of Micro-D connectors to 83513 micro D connectors, Sunkye also offers Micro-D PCB connectors and cable assemblies in both metal and plastic bodied versions. With its many possible configurations, the technology of micro electrical connectors is perfectly suited to a multitude of systems where weight, miniaturization or signal transmission integrity is paramount: applications benefiting from this technology include everything from missiles and their guidance systems, through oil well drilling tools to medical devices, satellites, and scientific research. For very specific applications such as medical MRI scanners or low magnetic field detection systems, Sunkye has developed a range of non-magnetic connectors using new materials and surface treatments, avoiding ferromagnetic materials. Hermetic micro d connectors are also offered for applications where an enclosure needs to be fully sealed from the outside world.

By the unique design and performance, Sunkye micro d connectors equipped with twist pin contact is enabled 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 composed of 10 strands of copper alloy and beryllium-copper twisted together, which is welded then bumped. A high number of electrical contact points are permanently assured while retaining flexibility and ease of insertion/ extraction, because during insertion into the turned female contact the 10 sprung strands are compressed. To keep insertion and retention performance of the twist pin and socket mated pair, the bulged point will be compressed inside the socket during insertion. Meanwhile, the exit of socket contact chamfer and twist pin hemispherical radius ensures adequate insertion even in case of misalignment.

Range of Micro-D connectors which is covered by the MIL-DTL-83513* standard is ideally suited to equipment and applications where weight, miniaturization and long term performance are required, so in these aspects it is a model recommended by micro d connectors manufacturers. It is available: In 10 contact arrangements (9 to 100 contacts) for rectangular Micro-D connectors.

Before Insertion of MIL-DTL-83513 Micro D Connectors

MIL DTL 83513 Micro D Connectors Specification

CHARACTERISTIC	SPECIFICATION	TEST METHOD
CURRENT RATING	3 A max.	EIA-364-70
CONTACT RESISTANCE	10 mΩ max.	EIA-364-06
INSULATION RESISTANCE	5000 MΩ min.@ 500 Vdc	EIA-364-21
DIELECTRIC WITHSTANDING VOLTAGE	600 Vac	EIA-364-20
– SEA LEVEL 0 m	150 Vac
– ALTITUDE 21 km (70,000 ft)
CONTACT ENGAGING AND	170 g max.(6 oz)	EIA-364-37
SEPARATION FORCE	14 g min.(0.5 oz)
CONNECTOR MATING AND	283 g (10 oz) x number of contacts max.	EIA-364-13
DE-MATING FORCE
CONTACT RETENTION	2.26 kg (5 lbs) for 5 seconds min.	EIA-364-29
DURABILITY	500 mating cycles min.	EIA-364-09
TEMPERATURE RANGES
– STANDARD	-55°C / +125°C
– HIGH TEMP	-55°C / +200°C
VIBRATION	10Hz-2000Hz,196m/s²	EIA-364-28 – TEST CONDITION IV
SHOCK	735m/s² 11ms	EIA-364-27 – TEST CONDITION E
SALT SPRAY	48 hours	EIA-364-26 – TEST CONDITION B
HUMIDITY	Insulation resistance > 1MΩ	EIA-364-31 – METHOD IV

Frequently asked questions about Mil Dtl 83513 Micro D Connector

What is mil dtl 83513 Specification?

MIL-DTL-83513, (formerly MIL-C-83513) describes polarized shell, micro-miniature, rectangular electrical connectors with solder or non-removable crimp contacts. Featuring of high current capability, low contact resistance, high dielectric strength and excellent resistance to shock and vibration, while offering a high pin density, small size and lightweight body, the MIL DTL 83513 connector meet the severe requirements of different applications and harsh environments, which is mechanically robust and durable. The connector is often referred to as a Micro-D connector system, which can be applied to a multitude of systems including aerospace avionics, radars, advanced soldier technology systems, military Global Positioning Systems, medical devices and down-hole drilling tools, etc., in which weight, miniaturization or signal transmission integrity are paramount. The Micro-D formfactor has become so popular among engineers and systems designers that many manufacturers have begun to offer high speed (up to 10Gbps) and modular versions of the connector.

What is a micro D connector used for?

The D-subminiature or D-sub is a common type of electrical connector commonly used in computers, Communications ports, Network ports, Game controller ports, etc. D-sub connectors feature parallel rows of connector pins, surrounded by a metal shield. The shield is shorter on one side, resembling the D English letter. A smaller type of connector derived from the D-sub is called the microminiature D, or micro-D. It is about half the length of a D-sub and its primary application is space-grade technology.

Except MIL DTL 83513, What are other Mil Spec Connector?

Mil Spec connector are now used in aerospace, industrial, marine, and even automotive commercial applications. For electrical connectors, except MIL DTL 83513, there are many Military Standards including MIL DTL 32139, MIL DTL 38999, MIL DTL 26482, MIL-DTL-83538 standard, etc. For fiber optic connectors, there are two main standard: MIL-C-83522 and MIL-DTL-83526. For alternative connectors, MIL-PRF-29504, MIL-PRF-2887, MIL-PRF-39012, MIL-PRF-31031, MIL-PRF-49142, MIL-PRF-64266 are widely used.

Description of MIL DTL 32139 Nano D Connectors

MIL-DTL-32139 Nano-D connectors 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 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.

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

– Nano-D rectangular connectors for cables.

– Nano-D rectangular connectors for PCBs.

– EMI versions.

– High-density Micro-D connectors.

Characteristics of MIL-DTL-32139 Nano D Connector

– 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-D connectors:

– High density circular Nano-D connectors.

Special Nano-D connectors available on request.

Before Insertion of MIL-DTL-32139 Nano D Connector

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 Backshel

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 backshells 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 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 backshells/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

– 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, 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.

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 Terminal Pin 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 pin contacts, high-density interconnection, 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 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.

Description of Micro Right Angle D Sub Connector Type

D-sub connectors 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, D-sub 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, 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 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.

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.

Description of Mini 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, 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 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.

LCP * Liquid Crystal Polymer.

Potting * Epoxy compound used as an encapsulant.

Frequently asked questions about Micro Crimp Connector

Are crimp 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 connector 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 or military style connectors or military standard connectors or military power connector, 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.

Micro Right Angle PCB Connector

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. Our military standard 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.