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MINISMDC150F/12-2
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Product Detailed Parameters
- Description：PTC RESET FUSE 12V 1.5A 1812
- Series：PolySwitch®, miniSMD
- Mfr：Littelfuse Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Polymeric
- Voltage - Max：12V
- Current - Hold (Ih) (Max)：1.5 A
- Current - Trip (It)：2.8 A
- Current - Max：100 A
- Time to Trip：500 ms
- Resistance - Initial (Ri) (Min)：40 mOhms
- Resistance - Post Trip (R1) (Max)：110 mOhms
- Resistance - 25°C (Typ)：-
- Operating Temperature：-40°C ~ 85°C
- Grade：-
- Qualification：-
- 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)：0.019" (0.48mm)
- Lead Spacing：-
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Overview
The Littelfuse MINISMDC150F/12-2 is a PolySwitch resettable fuse from the miniSMD series, designed for surface mount applications. It features a hold current of 1.5 A and a trip current of 2.8 A. The device supports a maximum voltage rating of 12 VDC and offers an interrupting rating of 100 A. Housed in an 1812 (4532 metric) package with dimensions of 4.73 mm length, 3.41 mm width, and 0.48 mm height, it exhibits a typical resistance of 110 mOhms. The component operates within a temperature range of -40°C to +85°C and has a power dissipation rating of 800 mW.
Feature Summary
- Provides automatic overcurrent protection through self-resetting polymer technology
- Compact surface mount design suitable for space-constrained printed circuit boards
- Leadless construction ensures compatibility with standard reflow and wave soldering processes
Applications
- Protection of portable electronic devices and handheld equipment
- Overcurrent safeguarding in battery-powered circuits
- Circuit protection for LED arrays and lighting systems
- Defense against short circuits in networking and telecommunications infrastructure
Procurement Notes
Verify the specific voltage rating variant required for the application, as the part number indicates a 12 VDC configuration distinct from other series ratings. Confirm that the 1812 package dimensions align with the target PCB footprint. Ensure compliance with RoHS directives and check moisture sensitivity levels for proper storage and handling procedures during assembly.
Selection Notes
Select this component when a low-profile, self-resetting solution is needed for 12 VDC circuits requiring 1.5 A continuous operation. The 1812 form factor balances current capacity with board space efficiency. Consider the 2.8 A trip threshold for nuisance tripping margins and verify that the 100 A interrupting rating exceeds potential fault currents in the system design.
Part Context
This device belongs to the Littelfuse miniSMD family of PolySwitch resettable fuses. These components utilize conductive polymer technology to provide reusable overcurrent protection. The series is engineered for high reliability in consumer electronics and industrial applications where traditional fusible links are impractical due to size or maintenance requirements.
Replacement Considerations
MINISMDC150F-2 serves as a functional substitute within the same series but differs in maximum voltage rating, which is specified at 6 VDC compared to the 12 VDC rating of the MINISMDC150F/12-2.
