TRF250-400 250V 400mA Tyco Raychem PPTC Resettable Fuse

The TRF250-400 from Tyco Raychem is a Polymeric Positive Temperature Coefficient (PPTC) resettable fuse designed to provide reliable overcurrent protection in electronic and electrical circuits. Unlike traditional fuses, the TRF250-400 automatically resets after the fault condition is removed, reducing maintenance costs and improving system reliability. It is ideal for power supplies, industrial controls, telecommunications equipment, consumer electronics, and circuit protection applications.

Key Features -

• Resettable overcurrent protection device

• Rated for up to 250V operation

• 400mA hold current capability

• Fast time-to-trip response

• Automatic reset after fault removal

• Low maintenance compared to conventional fuses

• Available in radial-leaded form factor

• UL, CSA, and TÜV recognized component

• Low parasitic capacitance and stable impedance characteristics

Specifications -

• Product Type - PPTC Resettable Fuse

• Part Number - TRF250-400

• Manufacturer - Tyco Raychem

• Technology - Polymeric Positive Temperature Coefficient (PPTC)

• Maximum Operating Voltage - 250V

• Hold Current (Ihold) - 400mA

• Reset Function - Automatic Reset

• Mounting Type - Through Hole (Radial Leaded)

• Protection Type - Overcurrent Protection

• Response Time - Fast Time-to-Trip

• Agency Approvals - UL, CSA, TÜV

• Operating Mode - Self-Resetting Protection Device

Applications -

• Power supply protection

• Industrial control equipment

• Telecommunications systems

• Consumer electronics

• Battery-powered devices

• Instrumentation equipment

• Automotive electronics (where specifications permit)

• Embedded and IoT systems

• General circuit protection applications