Needs validationmedium risk
JST 4-pos 1.0 mm SMT header candidate with side-entry orientation caveat.
Best Alternatives to BM04B-SRSS-TB(LF)(SN)
BM04B-SRSS-TB(LF)(SN) is a 4-position 1.0 mm SMT top-entry JST header. Alternatives need footprint, pinout, and mating-series review.
AI replacement insight
Electrical risklow
kept parts list 50 V and adequate current
Package riskhigh
orientation or footprint differs
Firmware risklow
passive connector
Sourcing riskmedium
some lifecycle fields are not explicit
Can it be replaced directly?
No pin-compatible replacement is verified from the provided evidence.
Best replacement path
Start with SM04B-SRSS-TB(LF)(SN) only if side-entry routing is acceptable.
Main risk
Mechanical fit and mating compatibility are not verified.
Recommended alternatives
3Alternative comparison matrix
| Feature / factor | BM04B-SRSS-TB(LF)(SN) | SM04B-SRSS-TB(LF)(SN) | ZX-SH1.0-4PLT | ZX-SH1.0-4PWT | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SMT top-entry | SMT side-entry | - | - | right-angle SMT — orientation differs |
| Pinout | 4 pos | 4 pos | - | - | 4 pos — land pattern not checked |
| Voltage | 50 V | 50 V | - | - | 50 V AC/DC — equal rating |
| Current | 0.7 A | 1.0 A | - | - | 1.0 A — higher rating |
| Temperature | -25 to +85 C | not listed | - | - | -25 to +85 C — range matches |
Application & sourcing insights
Questions & answers
SM04B-SRSS-TB(LF)(SN) is the closest kept candidate, but it is side-entry and needs layout review.