Needs validationlow risk
Strong alternative from the same manufacturer and series with matching electrical ratings.
Best Alternatives to B3P-VH-FB-B(LF)(SN)
The JST B3P-VH-FB-B(LF)(SN) is a popular 3-position, 3.96mm pitch through-hole header from the VH series, rated for 10A and 250V. Finding a suitable replacement involves matching mechanical dimensions and electrical ratings.
AI replacement insight
Package riskhigh
Housing dimensions, footprint, and locking features can differ subtly even with matching pitch.
Electrical risklow
The 10A/250V rating is common, but some alternatives have lower current ratings.
Sourcing risklow
This is a common connector style with many manufacturers and good availability.
Can it be replaced directly?
No officially documented pin-to-pin replacement exists. However, several parts in the JST VH series and compatible connectors from other vendors offer a strong functional match, but require datasheet verification of mechanical drawings.
Best replacement path
For a direct replacement, review other JST VH series parts like B3P5-VH(LF)(SN) for mechanical differences. For cost-effective options, consider cross-vendor compatibles like CJT's A3963WV-3P, ensuring footprint and housing dimensions match.
Main risk
The primary risk is mechanical incompatibility. While pitch and pin count may match, housing dimensions, locking features, and PCB footprint details can vary between series and manufacturers, preventing a proper fit.
Recommended alternatives
3Alternative comparison matrix
| Feature / factor | B3P-VH-FB-B(LF)(SN) | B3P5-VH(LF)(SN) | A3963WV-3P | ZX-VH3.96-3PZZ-R | Compatibility / risk |
|---|---|---|---|---|---|
| Pitch | 3.96 mm | 3.96 mm | 3.96 mm | 3.96 mm | 3.96 mm — Pitch matches target.; A3963WV-3P: Pitch matches target.; ZX-VH3.96-3PZZ-R: Pitch matches target. |
| Positions | 3 | 3 | - | - | 3 — Number of positions matches. |
| Current | 10 A | 10 A | 10 A | 7.0 A | 10 A / 7.0 A — Current rating matches.; A3963WV-3P: Current rating matches.; ZX-VH3.96-3PZZ-R: Current rating is lower than target's 10A. |
| Voltage | 250 V | 250 V | - | 250 V | 250 V — Voltage rating matches.; ZX-VH3.96-3PZZ-R: Voltage rating matches. |
| Family | JST VH | JST VH | - | - | JST VH — Same manufacturer and series, but minor part number variation requires check. |
| Temperature | -25°C to +85°C | - | -40°C ~ +105°C | - | -40°C ~ +105°C — Wider operating temperature range. |
| Manufacturer | JST | - | CJT | - | CJT — Cross-vendor compatible, requires mechanical verification. |
| Package | Through Hole | - | - | Through Hole | Through Hole — Package type matches. |
Application & sourcing insights
Questions & answers
Verified drop-in options for B3P-VH-FB-B(LF)(SN) are limited in the current batch. Review candidates marked Strong match or Datasheet verified, and validate package, pinout, and electrical limits before committing a BOM change.