Is there a pin-compatible replacement for JK-SMD0603-005-15?

Yes, several parts like SMD0603P005TF share the same 0603 package and 2-pin layout. However, you must verify electrical parameters like trip current to ensure they are functionally compatible with your circuit.

What risks should I check before replacing JK-SMD0603-005-15?

The most critical parameter to check is the trip current (It). The target's is 150mA, while some alternatives are 200mA. Also verify the initial resistance and time-to-trip curve to ensure protection characteristics meet your design requirements.

JK-SMD0603-005-15 Alternatives, Datasheet & Cross Reference | Jinrui Electronic Materials Co.

Find and compare alternatives for the JK-SMD0603-005-15, a 15V 50mA PTC resettable fuse in an 0603 package. Key parameters for replacement include hold current, trip current, and voltage rating.

AI replacement insight

Electrical riskmedium

Trip current difference requires verification to ensure circuit protection is not compromised.

Package risklow

All strong candidates share the same 0603 package, ensuring physical compatibility.

Sourcing risklow

Alternatives are available from multiple manufacturers, improving supply chain resilience.

Can it be replaced directly?

No verified pin-to-pin drop-in replacement has been identified. However, several functional alternatives exist with minor parametric differences that require review.

Best replacement path

SMD0603P005TF and SMD0603-005 are strong functional alternatives with the same hold current and package.

Main risk

The primary risk is a mismatch in trip current, which could alter the timing and level of overcurrent protection.

Recommended alternatives

Strong alternative from another vendor with same package, voltage, and hold current, but a higher trip current.

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Alternative comparison matrix

Feature / factor	JK-SMD0603-005-15	SMD0603-005	SMD0603P005TF	Compatibility / risk
Package	0603	0603	0603	0603 — Form and fit are matched.; SMD0603P005TF: Form and fit are matched.
Voltage	15V	15V	15V	15V — Maximum operating voltage is identical.; SMD0603P005TF: Maximum operating voltage is identical.
Current	20A	40A	40A	40A — Max fault current (Imax) is higher, more robust.; SMD0603P005TF: Max fault current (Imax) is higher, more robust.

Application & sourcing insights

Questions & answers

SMD0603P005TF from RUILON and SMD0603-005 from TECHFUSE are strong alternatives. They match the 0603 package, 15V rating, and 50mA hold current, but have a slightly higher trip current (200mA vs 150mA) which requires verification.