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MICROASMDCH020F-2
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Product Detailed Parameters
- Description：PPTC-MINI-PSW
- Series：SMD
- Mfr：Littelfuse Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Polymeric
- Voltage - Max：30V
- Current - Hold (Ih) (Max)：200 mA
- Current - Trip (It)：600 mA
- Current - Max：20 A
- Time to Trip：100 ms
- Resistance - Initial (Ri) (Min)：600 mOhms
- Resistance - Post Trip (R1) (Max)：4.2 Ohms
- Resistance - 25°C (Typ)：-
- Operating Temperature：-40°C ~ 125°C
- Grade：-
- Qualification：-
- Ratings：AEC-Q200
- 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)：0.033" (0.85mm)
- Lead Spacing：-
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Overview
The Littelfuse MICROASMDCH020F-2 is a PolySwitch resettable PPTC fuse in the microASMD series. It features a 160 mA hold current and 480 mA trip current, rated for 30 VDC maximum voltage. The device has a low resistance of 700 mOhms and handles a maximum fault current of 20 A. Packaged in a 1210 (3225 metric) SMD footprint with dimensions of 3.2 mm x 2.5 mm x 0.8 mm, it operates between -40°C and +125°C. Power dissipation is 800 mW.
Feature Summary
- Provides automatic circuit protection through polymer positive temperature coefficient technology
- Designed for high-temperature automotive applications with robust thermal stability
- Offers surface-mount compatibility for automated assembly processes
Applications
- Automotive electronic control units
- High-temperature sensor circuits
- In-vehicle infotainment systems
Procurement Notes
Verify component authenticity by checking manufacturer markings against official datasheets. Confirm package orientation and polarity indicators if applicable. Ensure storage conditions respect moisture sensitivity levels to prevent soldering defects during reflow processes.
Selection Notes
Select this component when space constraints require a compact 1210 footprint alongside high-temperature operational requirements. The 30 VDC rating suits low-voltage automotive bus architectures. Evaluate thermal derating curves to ensure reliable operation within the specified ambient temperature range.
Part Context
This part belongs to the microASMD family of automotive-grade resettable fuses. It complements larger SMD packages by offering similar protection characteristics in a reduced physical size. The series supports various hold currents tailored for specific circuit protection needs.
Replacement Considerations
Cross-reference with NANOSMDC020F-2 for smaller footprint options or picoASMDCH020F for different voltage ratings. Verify that substitute parts match the required hold current, trip current, and maximum operating temperature specifications.
