Is there a pin-compatible replacement for PAP-04V-S?

A true mate-compatible replacement must be from the JST PA series or a certified clone. Candidates from other series are not compatible, even with the same pin count and pitch.

What risks should I check before replacing PAP-04V-S?

The primary risk is mechanical incompatibility. Verify the connector series, locking mechanism, and overall dimensions. Using a non-compatible housing will prevent mating with the existing PCB header.

PAP-04V-S Alternatives, Datasheet & Cross Reference | JST

The JST PAP-04V-S is a 4-position, 2.0mm pitch connector housing. Finding a direct replacement requires careful verification of mechanical series compatibility to ensure it mates correctly.

AI replacement insight

Package riskhigh

Candidates are from different connector families and will not mate with JST PA headers.

Electrical risklow

Basic electrical parameters like pitch and position count match.

Can it be replaced directly?

No direct drop-in replacement has been identified. All functional alternatives belong to different connector families and are not mate-compatible.

Best replacement path

Source the original JST PAP-04V-S or a certified clone of the JST PA series. Using an alternative requires replacing the entire connector system.

Main risk

Mechanical incompatibility due to different connector series, which prevents mating with existing headers.

Recommended alternatives

A functional alternative with the same pin count and pitch, but from a different connector family.

View details

Alternative comparison matrix

Feature / factor	PAP-04V-S	A2001H-4P	ZX-HY2.0-4PJK	Compatibility / risk
Package	PA Series Housing	A2001 Series Housing	HY Series Housing	A2001 Series Housing / HY Series Housing — Different connector series, not mate-compatible with JST PA series.; ZX-HY2.0-4PJK: Different connector series, not mate-compatible with JST PA series.
Pin Count	4	4	4	4 — matched; ZX-HY2.0-4PJK: matched
Pitch	2.0mm	2.0mm	2.0mm	2.0mm — matched; ZX-HY2.0-4PJK: matched
Lifecycle	Active	Active	-	Active — matched
Voltage	Not specified	-	250V	250V — Target voltage not specified, assumed compatible.
Current	Not specified	-	2A	2A — Target current not specified, assumed compatible.

Application & sourcing insights

Questions & answers

The best alternative is another connector from the JST PA series. While other 4-pin, 2.0mm housings exist, they belong to different connector families and are not mechanically compatible, requiring replacement of the mating header.