S3B-ZR-SM4A-TF(LF)(SN)
JST Sales America Inc.
Needs validationmedium risk
Strong form-fit match from JST, but has a reduced operating temperature range.
Best Alternatives to HC-ZH-3PWT
HC-ZH-3PWT is a 3-pin, 1.5mm pitch, right-angle SMT header from HCTL's ZH series. Alternatives exist but require careful review of operating temperature and mechanical footprint.
AI replacement insight
Electrical risklow
Current/voltage ratings are easy to match or exceed.
Package riskmedium
While many parts are SMT right-angle, PCB footprint must be verified from datasheets.
Sourcing risklow
ZH-series connectors are a multi-sourced industry standard.
Can it be replaced directly?
No verified direct drop-in replacement is available. S3B-ZR-SM4A-TF is a strong form-fit candidate, but has a lower temperature rating.
Best replacement path
Cross-reference with JST's S3B-ZR-SM4A-TF or similar ZH-compatible SMT right-angle headers.
Main risk
The primary risk is the operating temperature range; many alternatives are rated for -25°C to 85°C, while the target is rated for -40°C to 105°C.
Recommended alternatives
2Alternative comparison matrix
| Feature / factor | HC-ZH-3PWT | S3B-ZR-SM4A-TF(LF)(SN) | HCZZ0323-3 | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SMT, Right Angle | SMT, Right Angle | SMT, Right Angle | SMT, Right Angle — Mounting type and orientation match.; HCZZ0323-3: Mounting type and orientation match. | |
| Pitch | 1.5mm | 1.5mm | 1.5mm | 1.5mm — Pitch matches.; HCZZ0323-3: Pitch matches. | |
| Current | 1A | 1.0A | - | 1.0A — Current rating matches. | |
| Voltage | 50V | 50V | 100V | 50V / 100V — Voltage rating matches.; HCZZ0323-3: Voltage rating is higher. | |
| Temperature | -40°C to +105°C | -25°C to +85°C | -25°C to +85°C | -25°C to +85°C — Candidate has a narrower temperature range.; HCZZ0323-3: Candidate has a narrower temperature range. |
Application & sourcing insights
Questions & answers
JST's S3B-ZR-SM4A-TF(LF)(SN) is a strong candidate, matching key specs like pitch, pin count, and SMT right-angle mounting, but has a narrower temperature range.