JST HL Series 4-Position Shrouded Header
The JST B04P-HL-A(LF)(SN) is a 4-position, dual-row header from the HL series, designed for board-to-cable/wire interconnects. It uses a 0.156" (3.96mm) pitch on both the mating interface and row spacing, giving it a broad, stable footprint suited for power distribution in harness assemblies. The header is fully shrouded on all four walls, which protects the male pins during handling and prevents misalignment during mating. A latch holder on the housing provides positive locking with the matching receptacle, making the connection resistant to vibration in industrial or automotive interior environments.
Key Ratings and What They Mean for Fit
Rated 7A per contact at 300V, this header carries enough current for power distribution to small motors, solenoids, or lighting circuits inside a cabinet or panel.
Mating and Termination
This is a through-hole solder header — the rectangular male pins insert into the PCB and are wave-soldered. It mates with the JST HL series receptacle housing (order the matching female side separately). The latch holder on the header engages with the receptacle's locking ramp, giving an audible click when fully seated. The board guide feature on the header aligns the mating pair before the pins engage, reducing the risk of bent contacts during blind mating in a panel or enclosure.