Compact, high-density connectors for control harnesses and demanding equipment.
Micro-D connectors and assemblies use compact, high-contact-density constructions to reduce equipment size and mass, with resilient twisted-wire contacts and rigid receptacles.
Available across J29A, J30, J40, J56, J63, J75 and related series with multiple pitches, crimp, solder, PCB, surface-mount, probe and spring-contact terminations.
0.635 mm contact‑spacing subminiature rectangular connector family. Progressive screw‑and‑nut mating for low insertion/extraction force with secure locking.
Key features
Available in 9, 15, 21, 25, 31, 37, 51, 65 and 69 contact configurations
Twisted‑wire contact construction; contact spacing: 0.635 mm
Crimp‑style wire cross‑section: 0.035 mm²
Minimal footprint; plug and receptacle mate via screw‑nut rotation — low insertion/extraction force, secure locking
High contact density, compact size, lightweight, high reliability
Plug fitted with pin contacts, receptacle with socket contacts (fixed pairing); locking‑screw side = free‑hanging; coupling‑nut side = fixed end; free‑hanging and fixed ends engage and lock together via screw‑nut rotation
Compliant standards: MIL‑DTL‑32139A; GJB 7245‑2011 General Specification for Shell‑Polarised Subminiature Rectangular Electrical Connectors
Technical data
Operating temperature: −55 °C to +125 °C
Vibration: 10 Hz–2000 Hz, 196 m/s²
Random vibration: power spectral density 0.4 G²/Hz, overall acceleration RMS 23.1 G
Available in 5, 9, 15, 21, 25, 31, 37 and 51 contact configurations
Twisted‑wire contact construction; contact spacing: 0.635 mm
Crimp‑style wire cross‑section: 0.035 mm²
Minimal footprint; plug and receptacle mate via screw‑nut rotation — low insertion/extraction force, secure locking
High contact density, compact size, lightweight, high reliability
Plug fitted with pin contacts, receptacle with socket contacts (fixed pairing); locking‑screw side = free‑hanging; coupling‑nut side = fixed end; free‑hanging and fixed ends engage and lock together via screw‑nut rotation
Compliant standards: MIL‑DTL‑32139A; GJB 7245‑2011 General Specification for Shell‑Polarised Subminiature Rectangular Electrical Connectors
Technical data
Operating temperature: −55 °C to +125 °C
Vibration: 10 Hz–2000 Hz, 196 m/s²
Random vibration: power spectral density 0.4 G²/Hz, overall acceleration RMS 23.1 G
0.75 mm‑pitch subminiature rectangular series. Approximately 50% of J40JZ volume — a structurally efficient miniaturised product recommended for new designs.
Key features
Available in 9, 15, 21, 25, 31, 37, 51, 66 and 74 contact configurations
Compared with J40JZ: height reduced by 1.0 mm, width by 0.6 mm, length by 2.1 mm; volume approximately 50 % of J40JZ. Recommended as a structurally efficient miniaturised product
High contact density, compact size, lightweight, high reliability
Wire cross‑section: 0.035 mm²–0.06 mm²
Plug fitted with pin contacts, receptacle with socket contacts (fixed pairing); locking‑screw side = free‑hanging; coupling‑nut side = fixed end; free‑hanging and fixed ends engage and lock together via screw‑nut rotation
Compliant standard: Q/KLT GF0009‑2024 Detail Specification for J75A Series Subminiature Rectangular Electrical Connectors
Technical data
Operating temperature: −55 °C to +125 °C
Vibration: 10 Hz–2000 Hz, 196 m/s²
Random vibration: power spectral density 0.4 G²/Hz, overall acceleration RMS 23.1 G
Lightweight Micro‑D series on a 1.0 mm × 0.866 mm grid. Volume approximately 30% of a conventional J30J — combines miniaturisation with high reliability.
Key features
Available in 5, 9, 15, 21, 25, 31, 37, 51, 66, 74 and 100 contact configurations
Compared with J30J: height reduced by 2.3 mm; volume approximately 30 % of J30J. Recommended as a structurally efficient miniaturised product
High contact density, compact size, lightweight, high reliability
Wire cross‑section: 0.035 mm²–0.10 mm²
Plug fitted with pin contacts, receptacle with socket contacts (fixed pairing); locking‑screw side = free‑hanging; coupling‑nut side = fixed end; free‑hanging and fixed ends engage and lock together via screw‑nut rotation
Compliant standard: Q/KLT GF0010‑2024 Detail Specification for J40J Series Micro Rectangular Electrical Connectors
Technical data
Operating temperature: −55 °C to +125 °C
Vibration: 10 Hz–2000 Hz, 196 m/s²
Random vibration: power spectral density 0.4 G²/Hz, overall acceleration RMS 23.1 G
Compared with J40J: height reduced by 0.7 mm, width by 0.9 mm, length by 2.3 mm; volume approximately 50 % of J40J. Recommended as a structurally efficient miniaturised product
High contact density, compact size, lightweight, high reliability
Wire cross‑section: 0.035 mm²–0.10 mm²
Plug fitted with pin contacts, receptacle with socket contacts (fixed pairing); locking‑screw side = free‑hanging; coupling‑nut side = fixed end; free‑hanging and fixed ends engage and lock together via screw‑nut rotation
Compliant standard: Q/KLT GF0010‑2024 Detail Specification for J40J Series Subminiature Rectangular Electrical Connectors
Technical data
Operating temperature: −55 °C to +125 °C
Vibration: 10 Hz–2000 Hz, 196 m/s²
Random vibration: power spectral density 0.4 G²/Hz, overall acceleration RMS 23.1 G
GJB 2446A‑compliant general‑purpose Micro‑D series with resilient twisted‑wire contacts. Covers a wide range of configurations, terminations and locking‑hardware options.
Key features
Available in 9, 15, 21, 25, 31, 37, 51, 66, 74 and 100 contact configurations — ten configurations
Mixed‑contact Micro‑D series combining standard signal contacts with high‑current contacts in a single shell — for hybrid signal‑and‑power applications.
Key features
Mixed large‑ and low‑current contact pairs in a single connector
Filtered Micro‑D series built on the MIL‑C‑83513/GJB 2446 platform. Integrates low‑pass filtering for applications requiring both miniaturisation and EMC performance.
Key features
Intermateable with standard J30J and MDM series products
Twisted‑wire contact plugs; contact spacing: 1.27 mm; high density, miniaturised, high reliability
Available in 9, 15, 21, 25, 31, 37 and 51 contact configurations
Filtering uses high‑performance planar capacitor arrays and ferrite elements
Low‑pass filtering, effective EMI suppression from 1 MHz to 1 GHz
Flexible capacitor termination technology eliminates thermal, vibration and shock‑induced internal stress for improved reliability
Overall dimensions only increase in the flange‑rear cavity compared with non‑filtered J30J (C‑type: max +3.6 mm height; π‑type: max +7.6 mm height)
Locking hardware and termination styles identical to non‑filtered J30J
Primarily used in high‑end electronic instruments and equipment requiring miniaturisation and EMC compliance
Compliant standard: GJB 2446A‑2011 General Detail Specification for Shell‑Polarised Micro Rectangular Electrical Connectors
Technical data
Operating temperature: −55 °C to +125 °C
Vibration: 10 Hz–2000 Hz, 196 m/s²
Shock: 980 m/s²
Rated current: 3 A
Operating voltage: 200 V DC (51‑contact: 100 V DC)
General‑purpose Micro‑D series with resilient twisted‑wire contacts for high‑density, miniaturised and high‑reliability electronic equipment interconnects.
Key features
Available in 9, 15, 21, 25, 31, 37 and 51 contact configurations — seven configurations
Low‑mating‑force, extended‑life Micro‑D series. External dimensions approximately 40% of an equivalent‑configuration standard J30J.
Key features
Available in 9, 15, 21, 25, 31, 37, 51, 66, 74 and 100 contact configurations — ten configurations
Contact grid (viewed from mating face): spacing 1.27 mm, row spacing 1.1 mm
Plug uses low‑mating‑force resilient twisted‑wire contacts: low insertion/extraction force, high contact reliability, long mechanical life
Recommended wire gauge: 0.1 mm²–0.15 mm²
Compared with a same‑configuration standard J30J: length reduced by ≥ 5 mm, width by ≥ 2.9 mm, height by ≥ 2 mm; volume approximately 40 % of a standard J30J. A structurally sound and reliable micro rectangular connector
For applications demanding higher thread strength or shell strength, stainless‑steel‑shell variants are available per the naming convention
Conforms to GJB 2446 requirements, equivalent to MIL‑DTL‑83513
Compliant standard: GJB 2446A‑2011 General Detail Specification for Shell‑Polarised Micro Rectangular Electrical Connectors
Technical data
Operating temperature: −55 °C to +125 °C
Vibration: 10 Hz–2000 Hz, 196 m/s²
Random vibration: power spectral density 0.4 G²/Hz, overall acceleration RMS 23.1 G