
HCTL
A 6-pin, 2.5mm pitch right-angle header with matching electrical ratings. Mechanical verification is required.
The JST S6B-XH-A(LF)(SN) is a popular 6-position, 2.5mm pitch right-angle header used in a wide range of wire-to-board applications. Finding a substitute involves matching its key electrical and mechanical characteristics.
While pitch and orientation match, the PCB footprint and shroud dimensions must be verified from datasheets to ensure fit and mateability.
Candidates have matching voltage and current ratings. No electrical stress issues are expected.
The XH series is a multi-sourced industry standard, but quality and availability can vary between manufacturers.
There are no guaranteed drop-in replacements without verification. However, several manufacturers produce XH-series compatible connectors, such as HCTL's HC-XHB-6AW, which have matching electrical and physical parameters but require datasheet comparison for mechanical fit.
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Mechanical incompatibility is the main risk. Clones may have slight variations in the shroud or pin dimensions that prevent proper mating with existing connectors or fitting on the PCB.

HCTL
A 6-pin, 2.5mm pitch right-angle header with matching electrical ratings. Mechanical verification is required.
| Feature / factor | S6B-XH-A(LF)(SN) | HC-XH-6AW-G | HC-XHB-6AW | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Positions | 6 | 6 | 6 | 6 — Number of positions matches.; HC-XHB-6AW: Number of positions matches. | |
| Pitch | 2.5 mm | 2.5 mm | 2.50 mm | 2.5 mm / 2.50 mm — Pin pitch matches.; HC-XHB-6AW: Pin pitch matches. | |
| Package | Through Hole, Right Angle | Through Hole, Right Angle | Through Hole, Right Angle | Through Hole, Right Angle — Mounting type and orientation appear to match.; HC-XHB-6AW: Mounting type and orientation appear to match. | |
| Current | 3 A | 3 A | 3 A | 3 A — Current rating matches.; HC-XHB-6AW: Current rating matches. | |
| Voltage | 250 V | 250 V | 250 V | 250 V — Voltage rating matches.; HC-XHB-6AW: Voltage rating matches. |
The best alternatives for S6B-XH-A(LF)(SN) are likely cross-vendor compatible parts like HCTL HC-XHB-6AW. These parts match key electrical specs but require you to verify mechanical dimensions from the datasheet to ensure a perfect fit.