Littelfuse 0272.750V Board Mount Fuse - Equivalent & Substitute Parts

Part Overview

The Littelfuse 0272.750V is a 750 mA, 125 V AC/DC board mount fuse designed for through-hole radial mounting in the MICRO™ 272 series. This fast-blow fuse provides circuit protection in applications requiring compact, reliable overcurrent protection with a 10 kA breaking capacity. The part is actively manufactured and maintains full compliance with RoHS3, REACH, and major approval agencies including UL, CSA, and QPL. Substitute parts are identified when equivalent electrical and mechanical parameters are required for design flexibility, inventory management, or supply chain continuity.

Substiute Parts

0272.750V

Littelfuse Inc.In Stock: 8560272.750V Datasheet

Current PartRFQ

0272.750H

Littelfuse Inc.In Stock: 11060272.750H Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Littelfuse 0272.750V is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must match the following criteria:

• Current Rating: 750 mA (exact match required)
• Voltage Rating: 125 V AC and 125 V DC (both required)
• Response Time: Fast Blow (exact match required)
• Breaking Capacity: 10 kA @ rated voltage (exact match required)
• Mounting Type: Through Hole (exact match required)
• Package / Case: Radial, Can, Vertical (exact match required)
• Physical Dimensions: 0.235" Dia x 0.287" H (exact match required)
• DC Cold Resistance: 0.293 Ohms (exact match required)
• Melting I²t: 0.09 (exact match required)
• Compliance: RoHS3, REACH, and approval agencies (CSA, QPL, UL)

Only parts meeting all these parameters are classified as direct substitutes within the MICRO™ 272 series.

Parameter Comparison

Engineering Selection Recommendations

Both the 0272.750V and 0272.750H are active products manufactured by Littelfuse Inc. and carry identical electrical, mechanical, and compliance specifications. Selection between these parts may be based on inventory availability or supply chain requirements. Both parts maintain full compliance with RoHS3 and REACH regulations and carry approvals from CSA, QPL, and UL, making them suitable for applications requiring certified circuit protection in industrial and commercial environments.

Frequently Asked Questions (FAQ)

Q: Can the 0272.750H replace the 0272.750V in my circuit design?

A: Yes. The 0272.750H is a direct parametric equivalent with identical current rating, voltage rating, response time, breaking capacity, physical dimensions, and resistance characteristics. No circuit redesign is required.

Q: Are there any differences in mounting or PCB layout between these parts?

A: No. Both parts use identical through-hole radial mounting with the same physical dimensions (0.235" Dia x 0.287" H). PCB footprints and mounting hole spacing are identical.

Q: Do both parts carry the same regulatory approvals?

A: Yes. Both the 0272.750V and 0272.750H carry identical approvals from CSA, QPL, and UL, and both are ROHS3 compliant and REACH unaffected.

Q: What is the difference between these two part numbers if they are equivalent?

A: The part numbers reflect different manufacturing batches or packaging configurations within the same product line. Electrically and mechanically, they are identical and fully interchangeable.

Q: Can I use these fuses in both AC and DC applications?

A: Yes. Both parts are rated for 125 V AC and 125 V DC operation, making them suitable for dual-voltage applications within the specified voltage range.