Best Alternatives to SMD0603-010

Package: 0603TECHFUSECircuit ProtectionOperating Voltage (Max): 15 VHold Current: 100 mATrip Current: 300 mACurrent Rating (Max): 40 APower Dissipation (Typ): 0.5 W

TECHFUSE SMD0603-010 is a popular 0603 PTC resettable fuse with a 100mA hold current and 15V rating. This page provides verified alternatives and analyzes replacement risks for your design.

AI replacement insight

Electrical riskmedium

Hold and trip currents must be closely matched to ensure proper circuit protection.

Package risklow

The 0603 package is highly standardized, minimizing physical compatibility issues.

Sourcing risklow

This is a common PTC fuse value with many alternative manufacturers available.

Can it be replaced directly?

Direct replacement for SMD0603-010 should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

Use a candidate with an identical 100mA hold current and 0603 package, such as SMD0603-010C-33V or SMD0603P010TF.

Main risk

The primary risk is selecting a part with a higher hold current, which would compromise the overcurrent protection of your circuit.

Recommended alternatives

4
SMD0603P010TF package
Needs validationlow risk

Strong pin-compatible alternative from RUILON with identical package, voltage, hold current, and trip current.

View details

Alternative comparison matrix

Feature / factorSMD0603-010SMD0603P010TFSMD0603-010C-33VFSMD010-0603-RCompatibility / risk
Package06030603060306030603 — Form factor matches.; SMD0603-010C-33V: Form factor matches.; FSMD010-0603-R: Form factor matches.; SMD0603-020-24V: Form factor matches.
Voltage15V15V33V15V15V / 33V / 24V — Maximum voltage rating is identical.; SMD0603-010C-33V: Higher voltage rating provides an upgrade.; FSMD010-0603-R: Maximum voltage rating is identical.; SMD0603-020-24V: Higher voltage rating is a safe upgrade.
Current300mA300mA300mA250mA300mA / 250mA / 500mA — Trip current (It) matches.; SMD0603-010C-33V: Trip current (It) matches.; FSMD010-0603-R: Trip current is slightly lower, which is generally safe.; SMD0603-020-24V: Trip current is significantly higher.

Application & sourcing insights

Questions & answers

Verified drop-in options for SMD0603-010 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.