PRG21BC0R4MM1RK

$0.27

Description：PTC RESET FUSE
Series：*
Mfr：Murata Electronics
Package：Tape & Reel (TR)

SKU:d0e1fd218cc2 Category: PTC Resettable Fuses Brand: Murata Electronics

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Product introduction

PRG21BC0R4MM1RK is listed in the Ptc Resettable Fuses range at ChipApex. The manufacturer field lists Murata Electronics. Its product description is PTC RESET FUSE. Review the specifications below when checking this part for your BOM.

Ptc Resettable Fuses specifications for PRG21BC0R4MM1RK

Description：PTC RESET FUSE
Series：*
Mfr：Murata Electronics
Package：Tape & Reel (TR)
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：-

Ptc Resettable Fuses datasheet and documents for PRG21BC0R4MM1RK

PRG21BC0R4MM1RK

Ptc Resettable Fuses Overview

The Murata Electronics PRG21BC0R4MM1RK is a POSISTOR PTC thermistor designed for surface-mount PCB applications. It features a nominal resistance of 0.4 ohms with a tolerance of 20 percent and a rated current capacity of 15 amperes. The component operates within a temperature range of negative 20 degrees Celsius to positive 85 degrees Celsius. It utilizes an SMD/SMT termination style and is housed in a standard 0805 package, measuring 2 millimeters in length, 1.25 millimeters in width, and 1.25 millimeters in height.

Ptc Resettable Fuses Feature Summary

Provides overcurrent protection through self-resetting positive temperature coefficient behavior
Engineered for high reliability in automotive transmission systems using ceramic materials
Capable of withstanding harsh operating conditions typical of engine and powertrain environments

Ptc Resettable Fuses Applications

Engine control unit circuit protection
Electronic power steering system safeguarding
XEV transmission system component protection

Ptc Resettable Fuses Procurement Notes

Verify the specific suffix MM1RK against official Murata documentation to confirm packaging and tape specifications. Ensure the selected variant matches the required thermal and electrical characteristics for the target application. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components. Confirm RoHS compliance status directly from the datasheet before finalizing procurement orders.

Ptc Resettable Fuses Selection Notes

Select this component based on its 0.4-ohm resistance value and 15-ampere current rating for low-resistance circuit paths. Consider the 0805 package dimensions for space-constrained PCB layouts. Evaluate the 85-degree Celsius maximum operating temperature against the ambient environment. Compare alternative series variants if wider temperature ranges or different voltage ratings are required for the specific design.

Ptc Resettable Fuses Part Context

This device belongs to the PRG21-MM1RK series of POSISTOR thermistors manufactured by Murata Electronics. These components are specifically engineered for automotive applications, offering robust protection in critical powertrain systems. The series utilizes advanced ceramic technology to ensure durability and consistent performance under demanding operational stresses found in modern vehicle electronics.