2920L300/15DR - Littelfuse Inc.

Manufacturer Part Number

2920L300/15DR

Manufacturer

littelfuse

Introduction

The 2920L300/15DR is a PTC resettable fuse from littelfuse's POLY-FUSE® 2920L series designed for surface mounting to provide overcurrent protection in electronic circuits.

Product Features and Performance

Type: Polymeric resettable fuse

Packaging: Supplied in Tape & Reel (TR) for automated assembly

Voltage - Max: 15V

Current - Hold (Ih) (Max): 3 A

Current - Trip (It): 5 A

Current - Max: 40 A

Time to Trip: 20 s

Resistance - Initial (Ri) (Min): 15 mOhms

Resistance - Post Trip (R1) (Max): 48 mOhms

Operating Temperature Range: -40°C to 85°C

Product Advantages

Provides robust overcurrent protection

Automatically resets after fault condition clears

Compact size suitable for high-density board installations

Key Technical Parameters

Voltage rating: 15V maximum

Hold current: 3 A maximum

Trip current: 5 A

Maximum fault current: 40 A

Time to trip: 20 seconds

Initial resistance: 15 milliohms minimum

Post trip resistance: 48 milliohms maximum

Operating temperature: -40°C to 85°C

Quality and Safety Features

Approvals: cURus, TUV certifications

Compatibility

Mounting Type: Surface Mount

Package/Case: 2920 (7351 Metric), Concave

Application Areas

Ideal for use in consumer electronics, telecom systems, and industrial controls to prevent damage from overcurrent conditions.

Product Lifecycle

Status: Active

This model is actively supported and not nearing discontinuation.

Several Key Reasons to Choose This Product

Resettable functionality reduces need for fuse replacement.

Surface mount package ideal for automated production processes.

High maximum fault current (40 A) accommodates a wide range of applications.

Durable in temperatures ranging from -40°C to 85°C ensuring reliability in different environments.

Compact dimensions facilitating use in space-constrained applications.

Certified safety with cURus and TUV, ensuring adherence to regional regulations.