Is there a pin-compatible replacement for WSL25125L000FEA?

Yes, several 2512 package resistors with 5mΩ resistance are pin-compatible. Candidates like PA2512FKE7W0R005E offer upgraded power and TCR, making them strong potential replacements after design review.

What risks should I check before replacing WSL25125L000FEA?

Key risks include differences in Temperature Coefficient (TCR), power derating curves, operating temperature range, and automotive (AEC-Q200) qualification. Ensure the replacement meets or exceeds all these parameters for your application.

WSL25125L000FEA Alternatives, Datasheet & Cross Reference | Vishay

WSL25125L000FEA is a 1W, 5mΩ, AEC-Q200 qualified current sense resistor from Vishay. Key alternatives often feature higher power ratings and improved TCR.

AI replacement insight

Electrical risklow

Most candidates offer superior power and TCR ratings.

Package risklow

All candidates use the same 2512 package.

Sourcing riskmedium

Verify automotive grade availability and lead times for substitutes.

Can it be replaced directly?

Yes, parts like Yageo PA2512FKE7W0R005E and TAI-TECH RLP25FEGR005 are strong candidates, offering upgraded performance in the same 2512 package.

Best replacement path

Upgrade to an AEC-Q200 qualified resistor with a higher power rating (2W or 3W) and a tighter TCR (e.g., ±50 ppm/°C).

Main risk

The main risk is ensuring the substitute's operating temperature range and automotive qualification match the application's requirements.

Recommended alternatives

AEC-Q200 qualified upgrade with 2W power and tighter ±50ppm/°C TCR in the same 2512 package.

View details

Alternative comparison matrix

Feature / factor	WSL25125L000FEA	PA2512FKE7W0R005E	RLP25FEGR005	Compatibility / risk
Package	2512	2512	2512	2512 — Matches target package.; RLP25FEGR005: Matches target package.
Resistance	5 mΩ	5 mΩ	-	5 mΩ — Matches target resistance.
Power	1.0 W	2.0 W	3.0 W	2.0 W / 3.0 W — Higher power rating provides more design margin.; RLP25FEGR005: Significantly higher power rating.
Tcr	±110 ppm/°C	±50 ppm/°C	±50 ppm/℃	±50 ppm/°C / ±50 ppm/℃ — Tighter TCR improves measurement stability.; RLP25FEGR005: Tighter TCR improves stability.
Temperature	-65°C to +170°C	-55°C to +170°C	-55°C to +170°C	-55°C to +170°C — Slightly narrower low-end operating temperature.; RLP25FEGR005: Slightly narrower low-end operating temperature.

Application & sourcing insights

Questions & answers

The best alternatives are AEC-Q200 qualified parts with equal or better power and TCR ratings, such as Yageo's PA2512FKE7W0R005E or TAI-TECH's RLP series. Always verify operating temperature range.