Is there a pin-compatible replacement for RL60-050?

Littelfuse RXEF050 shares the same radial leaded package and pin spacing. While it is form-fit compatible, it is not a direct drop-in replacement due to a higher initial resistance, which requires engineering verification.

What risks should I check before replacing RL60-050?

The main risk is the difference in electrical parameters. Key checks include the candidate's initial resistance (which affects voltage drop), power dissipation (thermal impact), and time-to-trip characteristics under your specific fault conditions.

RL60-050 Alternatives, Datasheet & Cross Reference | RUILON

The RUILON RL60-050 is a 60V, 0.5A hold current PTC resettable fuse in a radial leaded package. Alternatives exist but require careful review of initial resistance and power dissipation.

AI replacement insight

Electrical riskmedium

Higher initial resistance requires verification.

Package risklow

Radial leaded package is a common standard.

Can it be replaced directly?

No direct drop-in replacement has been identified. The closest candidates, like Littelfuse RXEF050, have a higher initial resistance that requires circuit analysis.

Best replacement path

Cross to Littelfuse RXEF050 series.

Main risk

Increased series resistance from the substitute part may cause unacceptable voltage drop or power loss during normal operation.

Recommended alternatives

A functional alternative with the same hold/trip currents and package, but higher initial resistance requires verification.

View details

Alternative comparison matrix

Feature / factor	RL60-050	RXEF050	RXEF050-2	Compatibility / risk
Package	Radial Leaded	Radial Leaded	Radial Leaded	Radial Leaded — Same package type and pin count.; RXEF050-2: Same package type and pin count.
Voltage	60V	72V	72V	72V — Higher voltage rating provides more margin.; RXEF050-2: Higher voltage rating provides more margin.
Current	0.5A	0.5A	0.5A	0.5A — Hold current matches target.; RXEF050-2: Hold current matches target.
Resistance	0.40Ω min	0.50Ω - 0.77Ω	0.50Ω - 0.77Ω	0.50Ω - 0.77Ω — Higher initial resistance may increase voltage drop.; RXEF050-2: Higher initial resistance may increase voltage drop.
Power	0.8W	-	1.29W	1.29W — Higher power dissipation may affect thermal performance.

Application & sourcing insights

Questions & answers

The Littelfuse RXEF050 is a strong functional alternative with the same hold/trip currents and a higher voltage rating. However, its initial resistance is higher, which must be evaluated for your specific application.