Is there a pin-compatible replacement for NANOSMDC150F-2?

Several alternatives like SMD1206P150TFT and SMD1206P150TF share the same 1206 package and 2-pin layout, making them form-fit compatible. However, true pin-to-pin functional equivalence requires careful review of electrical characteristics like trip time curves.

What risks should I check before replacing NANOSMDC150F-2?

Key risks include mismatched hold/trip currents which change the protection level, different trip time characteristics affecting response speed, and variations in post-trip resistance. Always compare datasheets carefully.

NANOSMDC150F-2 Alternatives, Datasheet & Cross Reference | Littelfuse

Find and compare alternatives for the Littelfuse NANOSMDC150F-2, a 1.5A 6V PTC resettable fuse in a 1206 package. Review key parametric differences before selection.

AI replacement insight

Electrical riskmedium

Trip time curves and resistance can vary between manufacturers, affecting circuit behavior.

Package risklow

The 1206 package is highly standardized, ensuring physical compatibility.

Sourcing risklow

Multiple vendors produce similar PTC fuses, providing a healthy supply chain.

Can it be replaced directly?

Yes, several form-fit alternatives with a matching 1.5A hold current and 1206 package exist, such as SMD1206P150TFT.

Best replacement path

Cross-reference to another manufacturer with identical key ratings, like PTTC SMD1206P150TFT.

Main risk

The primary risk is selecting a part with a different hold or trip current, which will compromise the intended overcurrent protection.

Recommended alternatives

A form-fit alternative from PTTC with a matching 1.5A hold current and a higher 8V voltage rating.

View details

Alternative comparison matrix

Feature / factor	NANOSMDC150F-2	SMD1206P150TFT	SMD1206P150TF	SMD1206P200TF	Compatibility / risk
Package	1206	1206	1206	1206	1206 — Same package size and pin count.; SMD1206P150TF: Same package size and pin count.; SMD1206P200TF: Same package size.
Current	1.5A	1.5A	1.5A	2.0A	1.5A / 2.0A — Hold current matches target.; SMD1206P150TF: Hold current matches target.; SMD1206P200TF: Higher hold current alters protection point.
Voltage	6.0V	8.0V	6.0V	6.0V	8.0V / 6.0V — Higher voltage rating provides more margin.; SMD1206P150TF: Voltage rating matches but has no extra margin.; SMD1206P200TF: Voltage rating matches target.
Manufacturer	Littelfuse	PTTC(Polytronics Tech)	RUILON	-	PTTC(Polytronics Tech) / RUILON — Cross-vendor alternative.; SMD1206P150TF: Cross-vendor alternative.

Application & sourcing insights

Questions & answers

SMD1206P150TFT by PTTC is a strong candidate, offering the same 1.5A hold current and a higher 8V voltage rating in the same 1206 package. Always verify full datasheet parameters before use.