TRF250-145T - Littelfuse Inc.

Manufacturer Part Number

TRF250-145T

Manufacturer

littelfuse

Introduction

The TRF250-145T is a compact, radial-leaded, polymeric positive temperature coefficient (PPTC) resettable fuse from Littelfuse. It is designed to provide overcurrent and overtemperature protection in a wide range of electronic devices and equipment.

Product Features and Performance

Polymeric construction for reliable performance and resettable functionality

Triggers at 290 mA (trip current) to protect against overcurrent conditions

Holds up to 145 mA (hold current) of continuous current

Operates within a temperature range of -40°C to 85°C

Low initial resistance of 5.4 ohms and a maximum post-trip resistance of 14 ohms

Compact size of 6.50mm x 4.60mm with a maximum seated height of 11.00mm

Suitable for through-hole mounting on printed circuit boards

Product Advantages

Robust and reliable protection against overcurrent and overtemperature conditions

Resettable functionality allows the device to be reused after a fault condition is cleared

Compact size and low profile for efficient space utilization in electronic designs

Wide operating temperature range enables use in diverse application environments

Key Reasons to Choose This Product

Proven Littelfuse quality and reliability

Effective circuit protection for sensitive electronic components

Easy integration and installation through through-hole mounting

Resettable design reduces maintenance and replacement costs

Compliance with major safety agency approvals (CSA, TUV, UL)

Quality and Safety Features

Approved by major safety agencies (CSA, TUV, UL)

Robust polymeric construction for consistent performance

Tight manufacturing tolerances and quality control measures

Compatibility

The TRF250-145T is compatible with a wide range of electronic devices and equipment that require overcurrent and overtemperature protection, such as power supplies, motor controls, and various consumer and industrial electronics.

Application Areas

Power supplies

Motor controls

Consumer electronics

Industrial equipment

Telecommunications equipment

Automotive electronics

Product Lifecycle

The TRF250-145T is an active and current product in our website's sales team's portfolio. There are no plans for discontinuation at this time. Customers are advised to contact our website's sales team for information on any equivalent or alternative models that may be available.