Is there a pin-compatible replacement for B3P-VH-B(LF)(SN)?

A3963WV-3P from CJT is a likely pin-compatible match, but this requires verification by comparing the mechanical drawings in both datasheets. Several other parts are not compatible due to having a right-angle orientation.

What risks should I check before replacing B3P-VH-B(LF)(SN)?

Key risks include: 1) Mechanical fit: ensure the PCB footprint, height, and locking features match. 2) Electrical rating: some alternatives have a lower current rating (e.g., 7A vs 10A). 3) Mating compatibility: ensure the substitute header mates correctly with the existing housing.

B3P-VH-B(LF)(SN) Alternatives, Datasheet & Cross Reference | JST

B3P-VH-B(LF)(SN) is a 3-pin, 3.96mm pitch vertical header from JST, rated for 10A and 250V. This page provides analysis of potential alternatives, highlighting key differences in electrical ratings and mechanical fit.

AI replacement insight

Package riskmedium

PCB footprint and locking features must be verified from datasheets.

Electrical riskhigh

Some alternatives have a lower current rating (7A vs 10A), which is a critical downgrade.

Can it be replaced directly?

No drop-in replacement is confirmed without a datasheet-level comparison of mechanical drawings. A3963WV-3P is the closest functional and form-factor match found.

Best replacement path

A3963WV-3P from CJT is the most promising path, but requires datasheet verification of the PCB footprint and locking features.

Main risk

The primary risk is mechanical incompatibility, specifically the PCB footprint and any locking features. Several candidates have incorrect mounting orientations.

Recommended alternatives

Cross-vendor alternative from CJT with matching electricals and a wider temperature range.

View details

Alternative comparison matrix

Feature / factor	B3P-VH-B(LF)(SN)	A3963WV-3P	HC-VH-3ALT	ZX-VH3.96-3PZZ-R	Compatibility / risk
Package	Through Hole, Vertical	Through Hole, Vertical	Through Hole, Vertical	Through Hole, Vertical	Through Hole, Vertical — Mounting orientation matches target.; HC-VH-3ALT: Mounting orientation matches target.; ZX-VH3.96-3PZZ-R: Mounting orientation appears to match.
Current	10 A	10 A	7 A	7 A	10 A / 7 A — Current rating matches.; HC-VH-3ALT: Lower current rating requires application review.; ZX-VH3.96-3PZZ-R: Lower current rating requires application review.
Voltage	250 V	250 V	250 V	250 V	250 V — Voltage rating matches.; HC-VH-3ALT: Voltage rating matches.; ZX-VH3.96-3PZZ-R: Voltage rating matches.
Temperature	-25°C to +85°C	-40°C to +105°C	Not specified	Not specified	-40°C to +105°C / Not specified — Wider operating temperature range.; HC-VH-3ALT: Operating temperature must be verified from datasheet.; ZX-VH3.96-3PZZ-R: Operating temperature must be verified from datasheet.
Pinout	JST VH Series Footprint	Unknown	-	-	Unknown — PCB footprint must be verified from datasheet.

Application & sourcing insights

Questions & answers

A3963WV-3P from CJT is a strong candidate, offering matching electrical ratings and a wider temperature range. However, verifying the PCB footprint and any locking features against the JST datasheet is crucial before substitution.