Is there a pin-compatible replacement for A2543WV-2P?

Yes, several candidates like X6511WRS-02H-C60D48-1 are pin-compatible in terms of being 2-pin, 2.54mm pitch, straight headers. However, they are not electrically equivalent due to a lower current rating (3A vs 4A).

What risks should I check before replacing A2543WV-2P?

The main risk is electrical overstress. All identified alternatives have a 3A current rating, while the original part is rated for 4A. Using a 3A part in a 4A circuit can cause overheating and failure. Also, check the operating temperature range, as some alternatives are less robust.

A2543WV-2P Alternatives, Datasheet & Cross Reference | CJT

The A2543WV-2P is a 2.54mm pitch, 2-pin straight header from CJT, notable for its 4A current rating. Finding a direct substitute is challenging, as most similar connectors are rated for only 3A, making electrical validation critical.

AI replacement insight

Electrical riskhigh

All candidates have a lower current rating (3A vs 4A). This is a critical downgrade.

Package risklow

Candidates are standard 2.54mm straight headers, but datasheet verification of dimensions is always recommended.

Can it be replaced directly?

No, there are no direct 1-to-1 replacements found with a matching 4A current rating. All candidates are rated for 3A and require careful evaluation of the application's power requirements.

Best replacement path

No direct drop-in replacements were found. All potential alternatives have a lower current rating (3A vs. 4A) and may have a narrower temperature range, requiring careful engineering review and possible system derating.

Main risk

The primary risk is the lower current rating (3A vs. 4A) of all potential substitutes, which could lead to overheating or failure if the application draws more than 3A.

Recommended alternatives

Form-factor match with a lower current rating of 3A. Engineering validation is required.

View details

Alternative comparison matrix

Feature / factor	A2543WV-2P	X6511WRS-02H-C60D48-1	WAFER-XH254JK-2A	Compatibility / risk
Pinout	2	2	2	2 — Pin count matches.; WAFER-XH254JK-2A: Pin count matches.
Package	2.54mm Pitch Header	2.54mm Pitch Header	2.54mm Pitch Header	2.54mm Pitch Header — Package name and pitch match. Verify dimensions.; WAFER-XH254JK-2A: Package name and pitch match. Verify dimensions.
Current	4A	3A	3A	3A — Candidate has a lower current rating.; WAFER-XH254JK-2A: Candidate has a lower current rating.
Voltage	250V	250V	-	250V — Voltage rating matches.
Temperature	-40°C to +105°C	Not specified	-25°C to +85°C	Not specified / -25°C to +85°C — Operating temperature range is missing.; WAFER-XH254JK-2A: Candidate has a narrower temperature range.

Application & sourcing insights

Questions & answers

No direct drop-in replacement with a 4A rating was found. The best alternatives, like X6511WRS-02H-C60D48-1, match the form factor but have a lower 3A current rating. This requires careful engineering review to ensure it's safe for your application.