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B Series Push-Pull Self-Locking Connectors

The B Series is a compact range of circular push-pull self-locking connectors designed for reliable power and signal transmission in space-constrained equipment that requires frequent mating and unmating, secure locking, and electromagnetic shielding. The push-pull mechanism enables fast connection and release, while the keyed alignment system helps prevent mismating. The series is suitable for electronic audio equipment, instrumentation, video processing systems, industrial control, medical equipment, and aerospace applications.

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Key Features

Designed for fast, secure, and reliable connections, B Series connectors offer flexible configurations for signal, power, and high-density applications.

Push-Pull Self-Locking

Simply push to connect and lock automatically, then pull the outer sleeve to release quickly and securely.

Flexible Termination Options

Available with solder, crimp, and PCB terminations to meet different wiring and assembly requirements.

Straight and Angled Designs

Choose from straight and 90° angled configurations to accommodate limited installation space and cable-routing needs.

2–32 Contact Options

Multiple contact configurations support power, signal, and multi-circuit connections in compact equipment.

360° EMI Shielding

The metal housing provides 360° shielding for reliable signal transmission and protection against electromagnetic interference.

Keying & IP68 Protection

Multiple keying options prevent mismating, while optional IP68 protection resists water and dust.

Type of B-Series Plugs

Type of B-Series Receptacles

Core technical solution

Cross-sectional view of the B Series fixed receptacle and straight plug, showing the internal structure and key components.

B Series Technical Features

Parameter	Specification
Mating cycles	More than 5,000
Humidity	Up to 95% RH at 60℃
Operating temperature	-45℃ to +125℃
Vibration	10–2,000 Hz, 15 g
Mechanical shock	100 g, 6 ms
Salt spray resistance	More than 72 hours
Ingress protection	IP50

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B Series Plug Assembly Instructions

Exploded view of the B Series plug, showing the component sequence and key alignment points for cable assembly.

1）Pass the cable through the strain-relief boot ①, rear nut ②, and cable collet ③ in sequence.
2）Solder the conductors to the contact assembly ⑤ in the specified order.
3）Fit the two-piece retaining ring ④ onto the soldered contact assembly. Ensure that the window in the retaining ring aligns with the corresponding projection on the contact assembly.
4）Position the cable collet ③ correctly on the cable. Ensure that the projection on the cable collet aligns with the groove in the retaining ring ④.
Insert the contact assembly ⑤, retaining ring ④, and cable collet ③ into the plug shell assembly ⑥ in sequence. Ensure that the projection on the retaining ring aligns with the corresponding internal notch in the plug shell assembly.
5）Tighten the rear nut ② onto the plug shell assembly ⑥.
6）Fit the strain-relief boot ① over the corresponding shoulder of the rear nut ②.

Cable preparation dimensions for solder termination of B Series straight and L-Series right-angle plugs.

Soldering Guidelines

✦ Match the cable outside diameter to the specified cable collet size.

✦ Match the conductor size to the contact termination diameter.

✦ For lead-free soldering, set the soldering iron temperature to approximately 380°C.

✦ Keep the soldering time below one second per contact.

✦ Insulate each soldered conductor with heat-shrink tubing.

✦ Protect the contacts and insulator from damage during soldering.