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MICROASMDCH075F-2
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Product Detailed Parameters
- Description：PPTC-MINI-PSW
- Series：PolySwitch®, microASMD
- Mfr：Littelfuse Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Polymeric
- Voltage - Max：16V
- Current - Hold (Ih) (Max)：750 mA
- Current - Trip (It)：2.25 A
- Current - Max：20 A
- Time to Trip：100 ms
- Resistance - Initial (Ri) (Min)：100 mOhms
- Resistance - Post Trip (R1) (Max)：680 mOhms
- Resistance - 25°C (Typ)：-
- Operating Temperature：-40°C ~ 85°C
- Grade：Automotive
- Qualification：AEC-Q200
- Ratings：-
- Mounting Type：Surface Mount
- Package / Case：1210 (3225 Metric), Concave
- Size / Dimension：0.127" L x 0.101" W (3.22mm x 2.58mm)
- Height - Seated (Max)：-
- Thickness (Max)：0.024" (0.60mm)
- Lead Spacing：-
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Overview
The Littelfuse microASMDCH075F-2 is a PolySwitch resettable PPTC device designed for automotive high-temperature applications. It features a 1210 (3225 metric) SMD package with dimensions of 3.43 mm length, 2.8 mm width, and 0.6 mm height. Key electrical parameters include a 750 mA hold current, 2.25 A trip current, and a maximum voltage rating of 16 VDC. The component has a resistance of 100 mOhms, a maximum interrupting current of 20 A, and a power dissipation of 1.3 W. It operates within a temperature range of -40°C to +125°C.
Feature Summary
- Designed specifically for automotive high-temperature environments
- Provides automatic circuit protection through polymer PTC technology
- Offers compact surface-mount form factor for space-constrained PCB layouts
Applications
- Automotive electronic circuit protection
- High-temperature consumer electronics
- Industrial control systems requiring resettable fuses
Procurement Notes
Verify the manufacturer part number against official Littelfuse documentation to ensure authenticity. Confirm that the specific suffix matches the required voltage and current ratings. Check RoHS compliance status and moisture sensitivity levels prior to assembly. Ensure storage conditions align with humidity requirements to maintain component integrity before soldering.
Selection Notes
Select this component when an automotive-grade resettable fuse is required for low-voltage DC circuits. The 16 VDC rating and 750 mA hold current define its operational limits. Consider the 1210 package size for board space constraints. Verify that the 125°C maximum operating temperature meets the thermal environment of the target application.
Part Context
This part belongs to the microASMD series, which focuses on small-footprint protection solutions. It complements other Littelfuse PolySwitch products like the standard ASMD and nanoSMD lines by offering higher temperature tolerance in a similar compact package. The series supports modern automotive and industrial designs needing reliable overcurrent protection.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided source material. Cross-referencing with equivalent Littelfuse series such as miniASMD or standard ASMD may be necessary based on specific voltage and current requirements.
