Is there a pin-compatible replacement for SMD0603-005-24V?

Yes, several parts like BSMD0603-005-33V and JK-SMD0603-005 share the same 0603 package and 2-pin layout. However, electrical parameters like trip current and resistance vary, so a full datasheet review is required.

What risks should I check before replacing SMD0603-005-24V?

Key risks include changes in trip current, trip time, and resistance. A higher hold current reduces protection, while a different trip curve can affect system behavior under fault conditions. Always check these in the datasheet.

SMD0603-005-24V Alternatives, Datasheet & Cross Reference | TECHFUSE

Find and compare replacements for the TECHFUSE SMD0603-005-24V, a 50mA/24V PTC resettable fuse in a 0603 package. Alternatives with similar and upgraded specifications are available for your design.

AI replacement insight

Package risklow

All strong candidates use the same 0603 package.

Electrical riskmedium

Trip current, trip time, and resistance differ between parts and must be verified.

Can it be replaced directly?

While no perfect drop-in is listed, BSMD0603-005-33V is a very strong candidate requiring minimal review. It matches the critical hold current and package size.

Best replacement path

BSMD0603-005-33V offers a direct parametric match on hold current with an improved voltage rating.

Main risk

The primary risk is a mismatch in the trip characteristics (current and time), which could alter the circuit's protection behavior.

Recommended alternatives

Excellent cross-vendor match with upgraded voltage rating (33V) and matching hold current.

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Alternative comparison matrix

Feature / factor	SMD0603-005-24V	BSMD0603-005-33V	JK-SMD0603-005	SMD0603-010-24V	Compatibility / risk
Package	0603	0603	0603	0603	0603 — Form and fit match.; JK-SMD0603-005: Form and fit match.; SMD0603-010-24V: Form and fit match.
Voltage	24V	33V	24V	24V	33V / 24V — Voltage rating is higher, providing more margin.; JK-SMD0603-005: Maximum voltage rating is identical.; SMD0603-010-24V: Maximum voltage rating is identical.
Current	200mA	150mA	20A	300mA	150mA / 20A / 300mA — Trip current is lower, offering more sensitive protection.; JK-SMD0603-005: Max fault current is lower.; SMD0603-010-24V: Trip current is higher.

Application & sourcing insights

Questions & answers

BSMD0603-005-33V by BHFUSE is a strong alternative with a matching 50mA hold current and an upgraded 33V rating. JK-SMD0603-005 is also a close match. Always verify full datasheet parameters before substitution.