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MGP420K
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Product Detailed Parameters
- Description：PTC RESET FUSE LOWRHO STRAP
- Series：-
- Mfr：Littelfuse Inc.
- Package：Bag
- Type：-
- Voltage - Max：-
- Current - Hold (Ih) (Max)：-
- Current - Trip (It)：-
- Current - Max：-
- Time to Trip：-
- Resistance - Initial (Ri) (Min)：-
- Resistance - Post Trip (R1) (Max)：-
- Resistance - 25°C (Typ)：-
- Operating Temperature：-
- Grade：-
- Qualification：-
- Ratings：-
- Mounting Type：-
- Package / Case：-
- Size / Dimension：-
- Height - Seated (Max)：-
- Thickness (Max)：-
- Lead Spacing：-
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Overview
The Littelfuse MGP420K is a low-resistance strap-style PTC resettable fuse designed for circuit protection. It functions as a thermally activated switch that limits current flow during overcurrent conditions, automatically resetting once the fault condition is removed and the device cools. This component is classified under circuit protection devices and is RoHS compliant. The typical moisture sensitivity level is 1, indicating unlimited exposure to ambient conditions before soldering. Packaging is typically provided in bags.
Feature Summary
- Provides automatic resettable overcurrent protection without manual intervention
- Features low resistance characteristics suitable for strap-style applications
- Designed for thermal activation to limit fault currents effectively
Applications
- Portable medical devices requiring compact circuit protection
- Connected drug delivery systems needing reliable safety components
- Wearable health technology circuits
Procurement Notes
Verify component status carefully as listings indicate this specific part number may be obsolete or discontinued by the manufacturer. Confirm availability through authorized distributors only. Ensure RoHS compliance documentation is available if required for regulatory adherence. Check packaging specifications against storage requirements due to the bag packaging type mentioned in supplier data.
Selection Notes
Select this component when a strap-style PTC fuse with low resistance is required for space-constrained designs. Consider the thermal characteristics and reset time relative to the application's duty cycle. Verify that the overcurrent protection requirements align with the device's trip characteristics. Ensure compatibility with the assembly process given the moisture sensitivity level.
Part Context
This component belongs to Littelfuse’s portfolio of circuit protection devices, specifically within the PTC resettable fuses category. It is part of a broader ecosystem solution offering for portable medical devices and connected health solutions. The product line includes various sensors, switches, and protection devices aimed at enhancing system reliability in healthcare applications.
Replacement Considerations
Publicly confirmed substitute part numbers are not explicitly documented in the provided source material. Consult official Littelfuse documentation for potential cross-reference alternatives if this obsolete part is no longer available.
