Is there a pin-compatible replacement for RLP25FEGR001?

Yes, several 2512 package resistors are pin-compatible. However, key electrical parameters like the Temperature Coefficient of Resistance (TCR) may differ and must be verified for your application.

What risks should I check before replacing RLP25FEGR001?

The primary risk is TCR mismatch. The target has a ±50ppm/°C TCR; substitutes may have ±100ppm/°C, affecting measurement accuracy over temperature. Always verify the thermal design and required precision.

RLP25FEGR001 Alternatives, Datasheet & Cross Reference | TAI-TECH

TAI-TECH RLP25FEGR001 is a 3W, 1mΩ, 2512 current sense resistor with a tight ±50ppm/°C TCR. Finding direct replacements requires careful matching of this temperature coefficient.

AI replacement insight

Electrical riskmedium

TCR degradation from ±50ppm/°C to ±100ppm/°C can affect measurement accuracy in sensitive applications.

Package risklow

The 2512 package is standard, ensuring mechanical compatibility.

Can it be replaced directly?

No direct, drop-in replacement without caveats has been identified. Alternatives exist but have a weaker Temperature Coefficient (TCR), which requires engineering review.

Best replacement path

Source candidates with a TCR of ±50ppm/°C or better. If unavailable, evaluate candidates with ±100ppm/°C, verifying the impact on system performance.

Main risk

TCR mismatch, potentially impacting circuit precision across the operating temperature range.

Recommended alternatives

Matches package, resistance, and power, but has a weaker temperature coefficient (TCR).

View details

Alternative comparison matrix

Feature / factor	RLP25FEGR001	ECSR2512FR001K9	HoLLR2512-3W-1mR-1%	Compatibility / risk
Package	2512	2512	2512	2512 — Form factor matches.; HoLLR2512-3W-1mR-1%: Form factor matches.
Resistance	1mΩ	1mΩ	1mΩ	1mΩ — Resistance matches.; HoLLR2512-3W-1mR-1%: Resistance matches.
Power	3W	3W	3W	3W — Power rating matches.; HoLLR2512-3W-1mR-1%: Power rating matches.
Tolerance	±1%	±1%	±1%	±1% — Tolerance matches.; HoLLR2512-3W-1mR-1%: Tolerance matches.
Tcr	±50 ppm/℃	±100 ppm/℃	≤100ppm/°C	±100 ppm/℃ / ≤100ppm/°C — Worse temperature stability.; HoLLR2512-3W-1mR-1%: Worse temperature stability.

Application & sourcing insights

Questions & answers

Candidates like Milliohm HoLLR2512-3W-1mR-1% and RESI ECSR2512FR001K9 match in package, resistance, and power, but have a higher TCR. They may be suitable if the application can tolerate lower thermal stability.