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MICROSMD010F-2
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Product Detailed Parameters
- Description：PTC RESET FUSE 30V 100MA 1210
- Series：PolySwitch®, microSMD
- Mfr：Littelfuse Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Polymeric
- Voltage - Max：30V
- Current - Hold (Ih) (Max)：100 mA
- Current - Trip (It)：250 mA
- Current - Max：10:00 AM
- Time to Trip：1 s
- Resistance - Initial (Ri) (Min)：2.1 Ohms
- Resistance - Post Trip (R1) (Max)：15 Ohms
- Resistance - 25°C (Typ)：-
- Operating Temperature：-40°C ~ 85°C
- Grade：-
- Qualification：-
- Ratings：-
- Mounting Type：Surface Mount
- Package / Case：1210 (3225 Metric), Concave
- Size / Dimension：0.127" L x 0.102" W (3.22mm x 2.58mm)
- Height - Seated (Max)：-
- Thickness (Max)：0.033" (0.85mm)
- Lead Spacing：-
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Overview
The MICROSMD010F-2 is a PolySwitch resettable fuse from the microSMD series by Littelfuse. It features a hold current of 100 mA and a trip current of 250 mA, rated for a maximum voltage of 30 VDC. The device has a resistance of 210 mOhms and a maximum fault current rating of 40 A. Packaged in a 1210 (3225 metric) surface-mount footprint with dimensions of 3.43 mm length, 2.8 mm width, and 0.48 mm height, it operates within a temperature range of -40°C to +85°C. Power dissipation is specified at 800 mW.
Feature Summary
- Provides overcurrent protection through automatic reset functionality upon cooling after fault removal.
- Utilizes polymer positive temperature coefficient technology for reliable circuit interruption.
- Designed for surface-mount assembly to facilitate automated manufacturing processes.
Applications
- Portable electronic devices requiring compact overcurrent protection
- Automotive electronics circuits
- Industrial control systems
Procurement Notes
Verify component authenticity against official Littelfuse documentation before integration. Confirm that the specific package variant matches design requirements. Ensure storage conditions adhere to moisture sensitivity levels indicated in the datasheet. Cross-reference electrical parameters with system specifications to guarantee adequate performance margins under all operating conditions.
Selection Notes
Select this component when space constraints necessitate a low-profile 1210 SMD form factor. The 100 mA hold current suits low-power signal lines or peripheral interfaces. Evaluate thermal management capabilities as power dissipation affects tripping behavior. Compare alternative series like miniASMD if higher voltage ratings or different physical dimensions are required for the specific application layout.
Part Context
This part belongs to the microSMD family, which focuses on small-footprint resettable fuses. It complements larger packages like the ASMDC series while offering higher current handling than nano-sized variants. The product line supports various industries including automotive and consumer electronics where space-saving protection is critical.
Replacement Considerations
MICROSMD110F-2 offers similar packaging but with a 1.1 A hold current. NANOSMDC010F-2 provides a smaller 1206 footprint with comparable electrical characteristics. MINIASMDC010F-2 utilizes a 1812 package with identical 100 mA hold current but different physical dimensions.
