ProjectsPricingInsights

Best Alternatives to RL30-200

Package: Radial LeadedRUILONCircuit ProtectionOperating Voltage (Max): 30VHold Current: 2ATrip Current: 4AMax Fault Current (Imax): 40ATypical Power Dissipation: 1.5W

The RUILON RL30-200 is a 30V, 2A PTC resettable fuse in a radial leaded package, designed for reliable overcurrent protection. Finding a substitute requires careful matching of its hold and trip current characteristics.

AI replacement insight

Electrical riskhigh

Hold current mismatch changes the circuit's protection point.

Package risklow

All candidates share the same radial leaded package.

Sourcing riskmedium

While family parts exist, an exact match may be difficult to source.

Can it be replaced directly?

No direct, drop-in replacement was found. All reviewed candidates have a higher hold current, which poses a safety risk to the application.

Best replacement path

Search for a PTC fuse with Ihold=2A, Vmax>=30V in a radial package. Prioritize exact current match over other parameters.

Main risk

Inadequate overcurrent protection due to higher hold current ratings in all candidates.

Recommended alternatives

4
RL30-300 package
RL30-300

RUILON

Needs validationmedium risk

Physically similar with a 3A hold current. Closest option, but still a notable deviation from the 2A target.

View details

Alternative comparison matrix

Feature / factorRL30-200RL30-300RL30-400RL30-800Compatibility / risk
PackageRadial LeadedRadial LeadedRadial LeadedRadial LeadedRadial Leaded — Form factor matches.; RL30-400: Form factor matches.; RL30-800: Form factor matches.; RL30-900: Form factor matches.
Voltage30V30V30V30V30V — Voltage rating matches.; RL30-400: Voltage rating matches.; RL30-800: Voltage rating matches.; RL30-900: Voltage rating matches.
Current2.0A3.0A4.0A8.0A3.0A / 4.0A / 8.0A / 9.0A — Hold current is 50% higher, reducing protection. Requires review.; RL30-400: Hold current is 2x higher, reducing protection. Requires review.; RL30-800: Hold current is 4x higher, significantly reducing protection.; RL30-900: Hold current is 4.5x higher, significantly reducing protection.
Power1.5W---4.2W — Higher power dissipation.

Application & sourcing insights

Questions & answers

The best alternative is a PTC fuse with the same 30V voltage, 2A hold current, and radial leaded package. Parts from the same RL30 series like RL30-300 are physically similar but have higher current ratings, requiring engineering review.