Fuses with Leads – Through Hole 250V IEC TL LL 2A TE5

39212000000 – 2A 250V Slow-Blow Fuse – Littelfuse TE5® Series

This Littelfuse TE5® 392 series fuse delivers reliable overcurrent protection for AC circuits. Designed with through-hole leads for secure PCB mounting, it features a slow-blow response to withstand temporary inrush currents while safeguarding equipment against sustained overloads. PCX ensures genuine Littelfuse components with rapid shipping and dedicated technical support.

Key Features

• Current Rating: 2A
• Voltage Rating: 250V AC
• Response Time: Slow Blow (Time-Lag)
• Breaking Capacity: 25A @ Rated Voltage
• Operating Temperature: -40°C to 125°C
• Approvals: cULus, VDE, PSE/JET, CQC, KC, SEMKO

Technical Details

This cartridge-style board-mount fuse features a radial, box package (8.50mm x 4.00mm x 8.00mm) with through-hole terminals. Its low DC cold resistance of 0.0298 Ohms minimizes power loss, while the 21.0 I²t value ensures controlled response to overloads. Constructed for stability across industrial temperature ranges, it meets rigorous international safety standards.

Typical Applications

• Power supplies and AC/DC converters
• Industrial control systems and PLCs
• Telecommunications infrastructure
• Consumer electronics and appliances
• Lighting systems and ballasts

About Littelfuse

Littelfuse is a global leader in circuit protection technologies, renowned for innovative solutions that enhance electronic safety and reliability. With nearly a century of expertise, they set industry benchmarks for fuse performance and durability across automotive, industrial, and consumer markets.

Their products undergo rigorous testing to exceed international certification requirements, ensuring consistent protection against electrical hazards. Littelfuse’s commitment to quality makes them a trusted partner for critical circuit protection worldwide.

About Fuses

Fuses are fundamental safety components that interrupt excessive current flow to prevent equipment damage, fire hazards, and electrical failures. They act as sacrificial devices, breaking the circuit during overloads or short circuits by melting a calibrated internal element.

Slow-blow fuses like the TE5® series provide essential protection for circuits with temporary startup surges (e.g., motors or transformers). Their time-delay characteristic avoids nuisance tripping while maintaining robust protection against sustained faults, making them indispensable in power management designs.

Packaging Options

Available in industry-standard Cut Tape (CT) and Tape & Box (TB) formats for prototyping or production needs. Note: Image is representational; refer to datasheet for exact dimensions.

Frequently Asked Questions

Question: What does “slow-blow” mean for this fuse?

Answer: Slow-blow (time-lag) fuses tolerate brief current spikes (like motor startup) but trip quickly during sustained overloads, ideal for inductive loads.

Question: Is this fuse suitable for 110V/220V mains applications?

Answer: Yes, its 250V AC rating covers standard global mains voltages with safety margins.

Question: Can it handle DC voltages?

Answer: No, this model is rated exclusively for AC circuits. Refer to the datasheet for DC-compatible alternatives.

Question: What certifications does this fuse carry?

Answer: It holds cULus, VDE, PSE/JET, CQC, KC, and SEMKO approvals for worldwide compliance.

Question: How do I determine the right fuse rating for my design?

Answer: Calculate normal operating current and inrush peaks, then select a fuse with a current rating slightly above operating load but below wire/component limits.

Question: Why choose Littelfuse over generic fuses?

Answer: Littelfuse offers rigorously tested, industry-compliant components with predictable trip curves—critical for safety-critical designs and certification processes.

Secure your circuit protection today! PCX guarantees authentic Littelfuse fuses with same-day shipping and expert support—order now to avoid project delays.