Is there a pin-compatible replacement for HC-3.96-4A4?

While several candidates like HC-VH-4ALT and JST's B4P-VH series are strong form-fit-function matches, pin-to-pin compatibility must be confirmed by comparing the datasheet drawings for PCB layout and mechanical dimensions. No candidate can be guaranteed as a drop-in replacement without this check.

What risks should I check before replacing HC-3.96-4A4?

When replacing HC-3.96-4A4, the main risks are mechanical. Check the PCB footprint (pin-to-pin spacing and hole diameters) and the connector's height and shroud dimensions. For cross-vendor parts like those from JST, also verify mating compatibility with existing female connectors.

HC-3.96-4A4 Alternatives, Datasheet & Cross Reference | HCTL

HC-3.96-4A4 is a 4-pin, 3.96mm pitch straight through-hole header from HCTL. Key alternatives include other straight-mount VH-series connectors with similar or higher current ratings, but require mechanical verification.

AI replacement insight

Package riskmedium

PCB footprint and mechanical dimensions must be verified from datasheets before substitution.

Electrical risklow

All suggested alternatives have equal or better voltage and current ratings.

Can it be replaced directly?

No guaranteed direct replacement is identified without datasheet comparison. HC-VH-4ALT is the most promising candidate for a drop-in fit.

Best replacement path

Start with HC-VH-4ALT from the same manufacturer, then consider JST's B4P-VH series if sourcing is an issue.

Main risk

Mechanical incompatibility. The primary risk is a mismatch in the PCB footprint or connector height, even for parts with the same pitch and pin count.

Recommended alternatives

Strong alternative from the same manufacturer with a higher current rating; verify PCB footprint.

View details

Alternative comparison matrix

Feature / factor	HC-3.96-4A4	HC-VH-4ALT	B4P-VH-B(LF)(SN)	B4P-VH-FB-B(LF)(SN)	Compatibility / risk
Package	Through Hole, Straight	Through Hole, Vertical	Through Hole, Top-Entry	Through Hole, Straight	Through Hole, Vertical / Through Hole, Top-Entry / Through Hole, Straight — Mounting orientation matches.; B4P-VH-B(LF)(SN): Mounting orientation matches.; B4P-VH-FB-B(LF)(SN): Mounting orientation matches.
Current	6 A	7 A	10 A	10 A	7 A / 10 A — Higher current rating is a safe upgrade.; B4P-VH-B(LF)(SN): Higher current rating is a safe upgrade.; B4P-VH-FB-B(LF)(SN): Higher current rating is a safe upgrade.
Voltage	250 V	250 V	-	-	250 V — matched
Pinout	See Datasheet	Unknown	Unknown	Unknown	Unknown — Footprint must be verified from datasheet.; B4P-VH-B(LF)(SN): Footprint must be verified from datasheet.; B4P-VH-FB-B(LF)(SN): Footprint must be verified from datasheet.
Manufacturer	HCTL	-	JST	JST	JST — Cross-vendor alternative.; B4P-VH-FB-B(LF)(SN): Cross-vendor alternative.

Application & sourcing insights

Questions & answers

The best alternative appears to be HC-VH-4ALT from the same manufacturer, HCTL. It offers a higher current rating (7A vs 6A) while matching pin count, pitch, and mounting style. However, verifying the PCB footprint is essential.