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Best Alternatives to JK-SMD0603-002

Package: 0603Jinrui Electronic Materials Co.Circuit ProtectionOperating Voltage (Max): 30VHold Current: 20mATrip Current: 60mACurrent Rating (Max): 40APower Dissipation: 0.5W

JK-SMD0603-002 is a 30V, 20mA hold current PTC resettable fuse in a 0603 package. Finding a replacement requires matching hold/trip currents and ensuring voltage and max fault current ratings are adequate for the application.

AI replacement insight

Electrical riskhigh

Most candidates have different current ratings. Even the best match has a lower max fault current rating.

Package risklow

All PTC candidates use the standard 0603 package, ensuring physical compatibility.

Can it be replaced directly?

Direct replacement for JK-SMD0603-002 should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

BSMD0603-002-60V is the strongest candidate with identical hold/trip currents, but its lower max fault current (20A vs 40A) must be verified for the application.

Main risk

The primary risk is mismatching current characteristics (hold, trip, or max fault current), which can lead to inadequate circuit protection or nuisance tripping.

Recommended alternatives

2
BSMD0603-002-60V package
BSMD0603-002-60V

BHFUSE

Needs validationmedium risk

Strong alternative with identical hold/trip currents and higher voltage, but lower max fault current.

View details

Alternative comparison matrix

Feature / factorJK-SMD0603-002BSMD0603-002-60VBSMD0603-003-30VAlt 3Compatibility / risk
Package06030603-0603 — Form factor matches.
Voltage30V60V-30V — Voltage rating matches.
Current20mA20A-20A — Max fault current is lower.

Application & sourcing insights

Questions & answers

Verified drop-in options for JK-SMD0603-002 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.