Is there a pin-compatible replacement for XH-2A-Y?

Possibly. Parts from the same manufacturer, like HCTL's XHB-2A-R (red) or XHB-2A-B (black), are very likely pin-compatible but have a different color. Cross-vendor parts like ZX-XH2.54-2PZZ-Y are designed to be compatible, but you must always check the datasheet's mechanical drawing to confirm a perfect fit.

What risks should I check before replacing XH-2A-Y?

Before replacing XH-2A-Y, you should check two main things. First, verify the mechanical dimensions from the candidate's datasheet to ensure it fits your PCB layout. Second, confirm if the housing color is important for your application, as most alternatives are not yellow.

XH-2A-Y Alternatives, Datasheet & Cross Reference | HCTL

XH-2A-Y is a 2-pin, 2.5mm pitch through-hole male header from HCTL, rated for 3A and 250V. Its distinctive yellow housing is a key feature for identification in board-to-wire applications.

AI replacement insight

Electrical risklow

All candidates have matching 3A/250V ratings.

Package riskmedium

While all are 2.5mm pitch headers, slight dimensional variations between manufacturers can affect fit. Color mismatch is a key consideration.

Sourcing risklow

The XH-series connector is a multi-sourced industry standard, providing many sourcing options.

Can it be replaced directly?

There are no confirmed direct, drop-in replacements without datasheet verification. ZX-XH2.54-2PZZ-Y is the most promising candidate. Parts from the same HCTL series like XHB-2A-R and XHB-2A-B are mechanically identical but have different colors (red and black).

Best replacement path

The strongest alternative is ZX-XH2.54-2PZZ-Y by Megastar, which appears to match all key specs including the yellow color. However, verifying its mechanical drawing against the HCTL datasheet is crucial.

Main risk

The primary risk is a mismatch in housing color, which can be critical for manufacturing processes that use color for keying or identification. A secondary risk is minor mechanical differences between vendors.

Recommended alternatives

Strong cross-vendor alternative with matching specs and likely matching color; verify mechanical fit from datasheet.

View details

Alternative comparison matrix

Feature / factor	XH-2A-Y	ZX-XH2.54-2PZZ-Y	XHB-2A-B	XHB-2A-R	Compatibility / risk
Pitch	2.5mm	2.5mm	-	2.5mm	2.5mm — Candidate MPN implies 2.54mm, but spec confirms 2.5mm.; XHB-2A-R: matched
Pin Count	2	2	-	-	2 — matched
Current	3A	3A	-	-	3A — matched
Voltage	250V	250V	-	-	250V — matched
Color	Yellow	Yellow (inferred from MPN)	Black	Red	Yellow (inferred from MPN) / Black / Red — MPN suffix '-Y' suggests color match, requires datasheet confirmation.; XHB-2A-B: Color differs, which may impact assembly or keying.; XHB-2A-R: Color differs, which may impact assembly or keying.
Manufacturer	HCTL	-	HCTL	HCTL	HCTL — Same manufacturer, likely same mechanical fit.; XHB-2A-R: Same manufacturer, likely same mechanical fit.
Electrical	3A / 250V	-	-	3A / 250V	3A / 250V — matched

Application & sourcing insights

Questions & answers

The best alternative appears to be ZX-XH2.54-2PZZ-Y from Megastar. It matches the 2-pin, 2.5mm pitch, and electrical ratings, and its part number suggests it is also yellow. You must verify the mechanical dimensions from the datasheet before ordering.