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J29 twist-pin micro-rectangular plug and receptacle
Representative image

J29 Twist-Pin Micro-Rectangular Connectors, 1.91 mm Pitch

Twist-pin contacts · 1.91 × 1.65 mm grid · 9–66 contacts · 5 A

J29 sits between Micro-D and standard D-sub: gold-plated twist-pin contacts on a 1.91 mm × 1.65 mm grid carry 5 A each with up to seven contact points per pin. Metal shells come in eight sizes from 9 to 66 contacts, with crimp, solder, straight PCB and right-angle PCB terminations and a 220 °C high-temperature version.

Contact grid
1.91 × 1.65 mm
Contacts
9 to 66
Current
5 A per contact
Withstanding voltage
1500 VDC
Temperature
−55 to +125 °C (220 °C J29G)
Mating cycles
500

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Key features

  • Gold-plated twist-pin (wire-spring) pins with up to seven contact points, rigid socket contacts
  • 1.91 mm contact pitch, 1.65 mm row spacing: denser than D-sub, 5 A per contact
  • Metal shielded shells in eight sizes: 9, 15, 21, 25, 31, 37, 51 and 66 contacts
  • Crimp, solder, straight PCB (1.91 × 1.65 grid) and right-angle PCB (1.91 × 2.54 or 3.82 × 2.54 grid)
  • Standard, -A and -A1 flange widths; backshells with or without cable clamp
  • Pre-wired versions with 300 mm leads as standard, other lengths on request
  • J29G high-temperature version to 220 °C; J29M version

Specifications

Electrical
ParameterValueCondition
Rated current5 A
Contact resistance≤ 10 mΩ
Withstanding voltage1500 VDC
Insulation resistance≥ 5000 MΩ / ≥ 1 MΩNormal / damp heat
Mechanical
ParameterValueCondition
Durability500 mating cycles
Vibration10–2000 Hz, 196 m/s²
Shock1200 m/s², 6 ms
Environmental
ParameterValueCondition
Operating temperature−55 to +125 °CJ29G: 220 °C

Values not listed above — for example vibration level, leak rate or other environmental tests — can be tested to your requirements, including third-party testing. Specifications are subject to change; contact us for the current datasheet.

Shell dimensions

ContactsA (mm)Mounting holes B (mm)
926.120.1
1531.625.6
2137.331.3
254236
3147.841.8
3753.547.5
515246
6661.555.5

Mounting holes Ø3.70 mm.

Versions

Series codeVersionNotes
J29AStandard version
J29A-…-A / -A1Flange as wide as the rear body (-A), or intermediate width (-A1)
J29MCrimp and solder versions
J29GHigh-temperature version, 220 °C

How to order

J29A-[contacts][type][termination][hardware]-[version][backshell]

Example: J29A-25ZKN — 25-contact receptacle with socket contacts, straight PCB tails on 1.91 × 1.65 mm grid

Code segmentOptions
Contacts
  • 9–66 9, 15, 21, 25, 31, 37, 51, 66
Type
  • TJ Plug with pin contacts
  • ZK Receptacle with socket contacts
Termination
  • (none) Crimp (pre-wired)
  • H Solder
  • N Straight PCB, 1.91 × 1.65 mm grid
  • W Right-angle PCB, 1.91 × 2.54 mm grid
  • WI Right-angle PCB, 3.82 × 2.54 mm grid
Hardware
  • L, P … Locking hardware types
Version
  • (none) Standard
  • A Flange as wide as the rear body
  • A1 Intermediate flange width
Backshell
  • D With cable clamp (standard crimp/solder)
  • D1 Without cable clamp
  • D2 With cable clamp (-A1 versions)

Pre-wired connectors are supplied with 300 mm leads of 0.20 mm², 250 V wire unless you specify otherwise.

Contact counts and terminations

Standard contact counts

  • 9
  • 15
  • 21
  • 25
  • 31
  • 37
  • 51
  • 66

Terminations

  • Crimp (pre-wired)
  • Solder
  • Straight PCB
  • Right-angle PCB

Typical applications

  • Rugged computers and control units
  • Test and measurement equipment
  • Rail signalling and on-board electronics
  • Industrial automation and robotics

Frequently asked questions

How does J29 compare with Micro-D?

J29 uses the same twist-pin principle as Micro-D (J30J) but on a larger 1.91 × 1.65 mm grid, so each contact carries 5 A instead of 3 A while staying smaller than a standard D-sub.

Can you supply J29 pre-wired?

Yes — crimp versions are supplied with leads, 300 mm of 0.20 mm² wire as standard, or the length and wire you specify.

From sample to production

  1. Send your requirement

    Part number, drawing, pin-out or a short description of your application.

  2. Configuration and quote

    Our engineers match the configuration and reply with a drawing and quotation.

  3. Samples

    Samples are made to your order. Third-party testing to your specification is available on request.

  4. Your approval

    You test the samples in your own equipment and approve them.

  5. Series production

    Production follows the approved sample configuration.

Need a quote or a drawing?

Send your part number, pin-out or drawing. An engineer will reply by email.

Request a quote

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