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MINIASMDC075F/24-2
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Product Detailed Parameters
- Description：PTC RESET FUSE 24V 750MA 1812
- Series：PolySwitch®, miniASMD
- Mfr：Littelfuse Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Polymeric
- Voltage - Max：24V
- Current - Hold (Ih) (Max)：750 mA
- Current - Trip (It)：1.5 A
- Current - Max：40 A
- Time to Trip：300 ms
- Resistance - Initial (Ri) (Min)：90 mOhms
- Resistance - Post Trip (R1) (Max)：290 mOhms
- Resistance - 25°C (Typ)：-
- Operating Temperature：-40°C ~ 85°C
- Grade：Automotive
- Qualification：AEC-Q200
- Ratings：-
- Mounting Type：Surface Mount
- Package / Case：1812 (4532 Metric), Concave
- Size / Dimension：0.181" L x 0.128" W (4.60mm x 3.24mm)
- Height - Seated (Max)：-
- Thickness (Max)：0.057" (1.46mm)
- Lead Spacing：-
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Overview
The Littelfuse MINIASMDC075F/24-2 is a surface-mount polymer PTC resettable fuse from the miniASMD series. It features a hold current of 750 mA and a trip current of 1.5 A, rated for a maximum voltage of 24 VDC. The device has a maximum fault current rating of 40 A and an initial resistance range of 90 mΩ to 290 mΩ. Packaged in a 1812 (4532 metric) concave footprint, it operates within a temperature range of -40°C to 85°C and holds AEC-Q200 automotive qualification.
Feature Summary
- Provides overcurrent protection through automatic reset functionality using polymer positive temperature coefficient technology.
- Designed with a concave package profile to facilitate reliable soldering on printed circuit boards.
- Meets automotive industry reliability standards for use in demanding electronic environments.
Applications
- Automotive electronics circuits requiring AEC-Q200 qualified protection
- Consumer electronics power input lines
- Industrial control unit circuit protection
Procurement Notes
Verify component authenticity by checking manufacturer markings against official datasheet specifications. Confirm package orientation and terminal plating quality upon receipt. Ensure storage conditions maintain moisture sensitivity level integrity before reflow soldering processes are initiated.
Selection Notes
Select this component when a 24 VDC system requires a compact 1812 form factor with specific 750 mA holding characteristics. Consider the 40 A interrupt rating for potential fault scenarios. Evaluate thermal derating requirements based on the 85°C maximum operating limit during design integration.
Part Context
This part belongs to the PolySwitch miniASMD family, designed for space-constrained applications. It serves as a reusable alternative to traditional fuses in low-voltage DC circuits. The series emphasizes high reliability and small physical dimensions suitable for modern surface mount assembly techniques.
Replacement Considerations
MINISMDC075F-2 offers similar electrical parameters but differs in voltage rating and package dimensions. Verify compatibility regarding maximum voltage limits and board space constraints before substitution.
