
CJT (Changjiang Connectors)
A 5-pin 1.25mm vertical SMT header with matching electricals, but mechanical compatibility and temperature range must be verified.
HC-GH-5PLT is a 5-pin, 1.25mm pitch vertical SMT header from HCTL, rated for 1A at 50V with a wide -40°C to +105°C operating range. Finding a direct replacement requires matching the specific GH series mechanical profile for mating compatibility.
Different connector series have unique housings and locking features that prevent mating.
Some alternatives have a significantly lower operating temperature range.
No direct, drop-in replacement has been verified. All reviewed candidates have critical differences in mechanical housing, orientation, or operating temperature.
Source an alternative from the JST GH series or a manufacturer-verified compatible series. Using a different series like PicoBlade or A1257 will require a PCB redesign.
The primary risk is mechanical incompatibility. Connectors from different series (e.g., GH vs. PicoBlade) are not designed to mate with each other, even if the pitch and pin count match.

CJT (Changjiang Connectors)
A 5-pin 1.25mm vertical SMT header with matching electricals, but mechanical compatibility and temperature range must be verified.
| Feature / factor | HC-GH-5PLT | A1257WV-S-5P-LCP | HCZZ0015-5 | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SMT, Vertical, GH series | SMT, Vertical, A1257 series | SMT, Vertical, PicoBlade style | SMT, Vertical, A1257 series / SMT, Vertical, PicoBlade style — Different connector series, not mateable with GH series.; HCZZ0015-5: Different connector series, not mateable with GH series. | |
| Voltage | 50V AC/DC | 50V | 125V AC/DC | 50V / 125V AC/DC — matched; HCZZ0015-5: Higher voltage rating is acceptable. | |
| Current | 1A | 1A | 1A | 1A — matched; HCZZ0015-5: matched | |
| Temperature | -40°C to +105°C | - | -25°C to +70°C | -25°C to +70°C — Operating temperature not specified in available data.; HCZZ0015-5: Significantly narrower operating range. |
No direct drop-in replacement has been verified. The best path is to find another connector in the GH series or a verified compatible. Functional alternates like A1257WV-S-5P-LCP exist but require board redesign.