MINISMDC014-2

Overview

The Littelfuse MINISMDC014-2 is a PolySwitch resettable PPTC device designed for surface-mount applications. It operates within a voltage range of up to 60 VDC and maintains a holding current of 140 mA. The component trips at 280 mA and features a maximum resistance of 6 Ohms. Housed in an 1812 (4532 metric) package with dimensions of 4.73 mm length, 3.41 mm width, and 0.89 mm height, it supports a maximum fault current of 10 A. The device functions between -40°C and +85°C, dissipating 750 mW.

Feature Summary

• Provides reliable overcurrent protection by raising resistance as it heats to limit current flow during fault conditions.
• Offers solid-state protection suitable for protecting components and ICs from overcurrent events without requiring replacement after tripping.

Applications

• Protection for actuators, screens, and small motors in commercial and passenger automotive systems
• Overcurrent protection for circuits, wiring harnesses, and PCB components
• Power supply circuit protection

Procurement Notes

Verify the specific part number against official Littelfuse documentation to confirm electrical ratings and package dimensions. Ensure compatibility with SMD/SMT assembly processes and check moisture sensitivity levels prior to handling. Confirm that the selected variant meets the required AEC-Q200 qualification if intended for automotive use.

Selection Notes

Select this component based on the required holding current of 140 mA and maximum operating voltage of 60 VDC. Consider the 1812 footprint constraints and the trip current of 280 mA for circuit design. Evaluate the thermal environment to ensure operation within the -40°C to +85°C range and verify power dissipation requirements against the 750 mW rating.

Part Context

This device belongs to the miniASMD series of PolySwitch resettable fuses. These components are engineered for compact surface-mount implementations, providing reusable overcurrent protection. The series is characterized by low resistance and fast response times, making them suitable for space-constrained electronic designs requiring reliable circuit safeguarding.

Replacement Considerations

MINIASMDC014F-2

FAQ

What is the maximum fault current rating for the MINISMDC014-2?

The maximum fault current rating is 10 A.

Does the MINISMDC014-2 require replacement after an overcurrent event?

No, it is a resettable fuse that returns to its low-resistance state once the fault condition is removed and the device cools down.