
JST SH series connector with matching form, but a lower voltage rating that requires careful engineering review.
Finding a substitute for the SHOU HAN 1.0-12P WT 1.0mm pitch header requires careful attention to electrical ratings. While several connectors match its 12-pin right-angle SMT format, many common alternatives have a lower voltage rating.
Candidates have 50V rating vs. target's 125V.
Several candidates match the 1.0mm pitch right-angle SMT format, but footprint verification is still recommended.
The target part is from a less common manufacturer; alternatives are from major brands like JST but may not be suitable.
No direct replacement found. All alternatives require review due to lower voltage ratings.
Downgrade with review
Electrical overstress due to lower voltage rating on all candidates.

JST SH series connector with matching form, but a lower voltage rating that requires careful engineering review.
| Feature / factor | 1.0-12P WT | SM12B-SRSS-TB(LF)(SN) | ZX-SH1.0-12PWT | HC-1.0-12PWT | Compatibility / risk |
|---|---|---|---|---|---|
| Voltage | 125V AC/DC | 50V | 50V AC/DC | 50V | 50V / 50V AC/DC — Significant downgrade from target's 125V rating.; ZX-SH1.0-12PWT: Significant downgrade from target's 125V rating.; HC-1.0-12PWT: Significant downgrade from target's 125V rating. |
| Package | 12-pin SMT Header | 12-pin SMT Header | 12-pin SMT Header | 12-pin SMT | 12-pin SMT Header — JST SH series is a common standard for this package.; ZX-SH1.0-12PWT: Package name and type match. Footprint verification recommended.; HC-1.0-12PWT: Package name differs slightly. Footprint must be verified. |
| Pitch | 1.0mm | 1.0mm | 1.0mm | 1.0mm | 1.0mm — matched; ZX-SH1.0-12PWT: matched; HC-1.0-12PWT: matched |
| Current | 1A | 1.0A | 1.0A | 1A | 1.0A / 1A — matched; ZX-SH1.0-12PWT: matched; HC-1.0-12PWT: matched |
| Temperature | -25°C to +85°C | - | -25°C to +85°C | - | -25°C to +85°C — matched |
No direct drop-in replacement has been identified. Candidates like JST's SM12B-SRSS-TB(LF)(SN) match the form factor but have a lower voltage rating (50V vs 125V), which requires engineering validation for your application.