MINIASMDC020F-2

Overview

The Littelfuse MINIASMDC020F-2 is a PolySwitch resettable PPTC fuse in the miniASMD series, designed for surface-mount applications. It features a 30 VDC maximum voltage rating and a 200 mA hold current. The device trips at 400 mA and offers a maximum interrupting rating of 10 A. Its initial resistance is 3.3 Ohms, with a power dissipation of 800 mW. Housed in an 1812 (4532 metric) package measuring 4.73 mm x 3.41 mm x 0.89 mm, it operates between -40°C and +85°C. This component holds AEC-Q200 qualification for automotive reliability.

Feature Summary

• AEC-Q200 qualified for automotive circuit protection
• Surface-mount polymer PTC construction
• Self-resetting overcurrent protection mechanism

Applications

• Automotive electronics circuits
• Portable electronic devices
• Battery pack protection

Procurement Notes

Verify the specific datasheet version to confirm AEC-Q200 compliance status, as some listings may vary. Ensure the ordering suffix matches the required packaging format, such as cut tape or reel. Confirm that the 1812 footprint dimensions align with the target PCB layout constraints before finalizing procurement orders.

Selection Notes

Select this component when a 30 VDC system requires a compact 200 mA resettable fuse. The 1812 package size balances protection capability with space efficiency. Consider the 3.3 Ohm initial resistance impact on low-voltage signal lines. Verify thermal management requirements given the 800 mW power dissipation limit during normal operation.

Part Context

This part belongs to the miniASMD family of resettable fuses from Littelfuse. These components utilize polymer positive temperature coefficient technology to provide reusable overcurrent protection. The series is engineered for high-reliability environments, offering a compact alternative to traditional fusible linkers in modern electronic assemblies.

Replacement Considerations

MINIASMDC020F-24: Identical electrical ratings but rated for 24 VDC instead of 30 VDC.