What risks should I check before replacing A1002WV-S-4P?

Before replacing A1002WV-S-4P, you must check three main risks: 1) Mounting Type: Ensure the replacement is SMT, not Through-Hole. 2) Orientation: Verify it is a vertical connector, not right-angle. 3) PCB Footprint: Compare the mechanical drawings to confirm the solder pads and housing dimensions match exactly.

A1002WV-S-4P Alternatives, Datasheet & Cross Reference | CJT

Finding a substitute for the CJT A1002WV-S-4P, a 4-pin 1.0mm vertical SMT header, requires careful matching of mechanical and electrical specifications. While several functional alternatives exist, confirming the PCB footprint is critical for a successful replacement.

AI replacement insight

Package riskhigh

PCB footprint, connector height, and orientation must be verified from datasheets. A mismatch requires a board spin.

Electrical risklow

Most candidates match the 1A/50V rating, but any parametric alternative (e.g., lower current) must be checked against application load.

Sourcing risklow

Multiple manufacturers produce similar 1.0mm pitch headers, offering sourcing flexibility if form factor is confirmed.

Can it be replaced directly?

Direct replacement for A1002WV-S-4P should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

HCZZ0039-4 is the most promising candidate, as it matches all key electrical and mechanical attributes based on available data. However, a full datasheet review to confirm the PCB footprint is essential before procurement.

Main risk

The primary risk is the mechanical fit. Connectors, even with matching pitch and pin count, can have different housing dimensions and PCB footprints. Using a part with the wrong orientation (right-angle) or mounting type (through-hole) will require a board redesign.

Recommended alternatives

Strong candidate with matching pitch, pin count, SMT vertical mount, and electrical ratings; requires footprint verification.

View details

Alternative comparison matrix

Feature / factor	A1002WV-S-4P	HCZZ0039-4	A1002WR-S-4P	BM04B-SRSS-TBT(LF)(SN)	Compatibility / risk
Package	Surface Mount (SMT), Vertical	Surface Mount (SMT), Vertical	Surface Mount, Right Angle	Surface Mount, Top-Entry	Surface Mount (SMT), Vertical / Surface Mount, Right Angle / Surface Mount, Top-Entry — Mounting type and orientation appear to match. Footprint requires verification.; A1002WR-S-4P: Candidate is a right-angle connector, while target is vertical.; BM04B-SRSS-TBT(LF)(SN): Mounting appears to be SMT Vertical, but footprint requires verification.
Pin Count	4	4	-	-	4 — matched
Pitch	1.00 mm	1.0 mm	1.0 mm	1.0 mm	1.0 mm — matched; A1002WR-S-4P: matched; BM04B-SRSS-TBT(LF)(SN): matched
Current	1 A	1 A	1 A	0.7 A	1 A / 0.7 A — matched; A1002WR-S-4P: matched; BM04B-SRSS-TBT(LF)(SN): Candidate has a lower current rating.
Voltage	50 V	50 V	-	50 V	50 V — matched; BM04B-SRSS-TBT(LF)(SN): matched
Manufacturer	CJT	-	CJT	-	CJT — Same manufacturer, likely same product family (A1002W).

Application & sourcing insights

Questions & answers

Verified drop-in options for A1002WV-S-4P 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.