What risks should I check before replacing WR04X104JTL?

Key risks include verifying the operating temperature range, power rating under specific conditions, and potential performance differences like pulse handling, especially when changing resistor technology (e.g., from thick film to thin film).

WR04X104JTL Alternatives, Datasheet & Cross Reference | Walsin Technology Corporation

WR04X104JTL is a general-purpose 100kΩ, 5%, 1/16W thick film resistor in a standard 0402 package. Finding a substitute involves matching these key parameters and physical footprint.

AI replacement insight

Electrical risklow

For matched thick film parts, electrical risk is low. Thin film parts require review.

Package risklow

All reviewed candidates use the same 0402 package.

Sourcing riskmedium

Availability and lead time may vary between manufacturers.

Can it be replaced directly?

Direct replacement for WR04X104JTL should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

Upgrade to a tighter tolerance part from the same series, like WR04X1003FTL.

Main risk

The primary risk is ensuring the substitute's operating temperature range and power derating curve match the application's requirements.

Recommended alternatives

A drop-in upgrade from the same manufacturer with tighter ±1% tolerance.

View details

Alternative comparison matrix

Feature / factor	WR04X104JTL	WR04X1003FTL	AC0402JR-07100KL	RTT02104JTH	Compatibility / risk
Resistance	100 kΩ	100 kΩ	-	100 kΩ	100 kΩ — Identical resistance value.; RTT02104JTH: Identical resistance value.
Tolerance	±5%	±1%	-	±5%	±1% / ±5% — Tighter tolerance is a safe upgrade.; RTT02104JTH: Tolerance is identical.
Power	1/16 W	1/16 W	-	1/16 W	1/16 W — Power rating is identical.; RTT02104JTH: Power rating is identical.
Package	0402	0402	0402	0402	0402 — Package size is identical.; AC0402JR-07100KL: Package size is identical.; RTT02104JTH: Package size is identical.
Technology	Thick Film	Thick Film	-	-	Thick Film — Resistor technology is the same.
Electrical	100 kΩ, ±5%, 1/16W	-	100 kΩ, ±5%, 1/16W	-	100 kΩ, ±5%, 1/16W — Core electrical parameters are identical.
Qualification	Commercial	-	AEC-Q200	-	AEC-Q200 — Candidate is automotive qualified.
Manufacturer	Walsin	-	-	RALEC	RALEC — Cross-vendor alternative.

Application & sourcing insights

Questions & answers

Verified drop-in options for WR04X104JTL are limited in the current batch. Review candidates marked Strong match or Datasheet verified, and validate package, pinout, and electrical limits before committing a BOM change.