
JST's B3B-XH-A(LF)(SN) is the original industry-standard part, offering a pin-compatible replacement for the HCTL clone.
HC-XHB-3A is a 3-pin, 2.5mm pitch straight shrouded header from HCTL. The most common alternatives are from the original JST XH series, such as B3B-XH-A(LF)(SN).
Mismatches in pitch, orientation, or shrouding are common and critical.
Most XH-style connectors share the same 3A/250V rating.
Yes, B3B-XH-A(LF)(SN) from JST is a direct replacement for HC-XHB-3A.
Use the original JST part, B3B-XH-A(LF)(SN), for a high-confidence, pin-compatible replacement.
The main risk is selecting a part with an incorrect pitch (e.g., 2.54mm) or mounting style (right-angle vs. straight).

JST's B3B-XH-A(LF)(SN) is the original industry-standard part, offering a pin-compatible replacement for the HCTL clone.
| Feature / factor | HC-XHB-3A | B3B-XH-A(LF)(SN) | B3B-XH-AM(LF)(SN) | HC-XH-3A-G | Compatibility / risk |
|---|---|---|---|---|---|
| Manufacturer | HCTL | JST | - | - | JST — Original manufacturer of XH series. |
| Orientation | Straight / Top-Entry | Straight / Top-Entry | - | - | Straight / Top-Entry — matched |
| Pitch | 2.5mm | 2.5mm | - | - | 2.5mm — matched |
| Current | 3A | 3A | - | - | 3A — matched |
| Package Features | Shrouded, no boss | Shrouded, no boss | - | - | Unshrouded — Lacks protection and keying of original. |
| Electrical Ratings | 3A / 250V | - | - | 3A / 250V | 3A / 250V — matched |
The JST B3B-XH-A(LF)(SN) is considered the best alternative, as it is the original industry-standard part that HC-XHB-3A is based on.