Is there a pin-compatible replacement for 1.25-3PWB?

Currently, no replacement is verified as pin-to-pin compatible. Candidates like ZX-MX1.25-3PWT and HCZZ0576-3 are likely compatible but require an engineering review of their datasheets to confirm the PCB layout and dimensions match.

What risks should I check before replacing 1.25-3PWB?

The primary risk is mechanical incompatibility. Verify the PCB footprint (pad layout), connector height, and mating interface from the datasheet. Electrical ratings like voltage and current are generally well-matched by alternatives.

1.25-3PWB Alternatives, Datasheet & Cross Reference | DEALON

The DEALON 1.25-3PWB is a common 3-pin, 1.25mm pitch right-angle SMT header. This analysis reviews several potential alternatives, highlighting key electrical and mechanical parameters for substitution.

AI replacement insight

Package riskhigh

PCB footprint and connector height must be manually verified from datasheets.

Electrical risklow

Key ratings like voltage and current are matched by several candidates.

Sourcing riskmedium

Multiple vendors offer similar parts, but verification is required for each.

Can it be replaced directly?

No direct, verified drop-in replacement has been identified. Several candidates are electrically compatible but require mechanical review to confirm pin-to-pin compatibility.

Best replacement path

ZX-MX1.25-3PWT is the most promising alternative, pending mechanical verification from its datasheet.

Main risk

Package and footprint mismatch is the main risk, as automated checks could not confirm dimensional interchangeability.

Recommended alternatives

Electrically compatible alternative with a wider current rating; requires mechanical verification of footprint and height.

View details

Alternative comparison matrix

Feature / factor	1.25-3PWB	HCZZ0576-3	ZX-MX1.25-3PWT	Compatibility / risk
Package	Surface Mount, Right Angle	Surface Mount, Right Angle	Surface Mount, Right Angle	Surface Mount, Right Angle — Mounting type matches, but footprint and height (1.85mm) require datasheet verification.; ZX-MX1.25-3PWT: Mounting type matches, but PCB footprint requires datasheet verification.
Voltage	125 V AC/DC	125 V AC/DC	125V AC, DC	125 V AC/DC / 125V AC, DC — matched; ZX-MX1.25-3PWT: matched
Current	1 A	0.8 A - 2.5 A	1.0A AC, DC	0.8 A - 2.5 A / 1.0A AC, DC — Candidate's current range covers the target's 1A rating.; ZX-MX1.25-3PWT: matched
Pitch	1.25 mm	1.25 mm	1.25 mm	1.25 mm — matched; ZX-MX1.25-3PWT: matched

Application & sourcing insights

Questions & answers

ZX-MX1.25-3PWT by Megastar is a strong candidate with matching electrical ratings and mounting type. However, its mechanical footprint must be verified from the datasheet to ensure it is a drop-in replacement.