Littelfuse 0SFE07.5V Glass Cartridge Fuse Equivalent & Substitute Parts

Part Overview

The Littelfuse 0SFE07.5V is a 7.5 A, 32 V AC/DC fast-blow glass cartridge fuse in the 7AG package format (1/4" x 7/8"). This component is classified as Active product status and is designed for applications requiring reliable overcurrent protection in low-voltage circuits. Substitute parts are identified when equivalent electrical ratings, mechanical dimensions, and functional characteristics align with the original specification, enabling direct replacement in circuit protection applications.

Substiute Parts

0SFE07.5V

Littelfuse Inc.In Stock: 11900SFE07.5V Datasheet

Current PartRFQ

030707.5H

Littelfuse Inc.In Stock: 939030707.5H Datasheet

Parametric EquivalentRFQ

0SFE07.5VP

Littelfuse Inc.In Stock: 10130SFE07.5VP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 0SFE07.5V are qualified based on the following critical parameters that determine functional interchangeability:

• Current Rating: 7.5 A (exact match required)
• Voltage Rating: 32 V AC and 32 V DC (exact match required)
• Fuse Type: Cartridge, Glass (exact match required)
• Package / Case: 7AG, 1/4" x 7/8" (exact match required)
• Response Time: Fast Blow (exact match required)
• Mounting Type: Requires Holder (exact match required)

All identified substitute parts maintain these electrical and mechanical specifications, ensuring direct replacement capability without circuit redesign or holder modification.

Parameter Comparison

Engineering Selection Recommendations

All three parts—0SFE07.5V, 030707.5H, and 0SFE07.5VP—are Active product status and maintain full compliance with ROHS3 and REACH requirements. The 030707.5H carries UL approval certification, which may be required for applications subject to regulatory compliance mandates. Selection between these parts should be based on availability, packaging format (bulk versus card packaging for 0SFE07.5VP), and certification requirements specific to the end application. All parts are electrically and mechanically interchangeable within circuits designed for 7.5 A, 32 V AC/DC fast-blow fuse protection.

Frequently Asked Questions (FAQ)

Q: Can 030707.5H replace 0SFE07.5V directly? A: Yes. Both parts share identical electrical ratings (7.5 A, 32 V AC/DC), fuse type (cartridge, glass), response time (fast blow), and mechanical dimensions (7AG, 1/4" x 7/8"). Direct substitution is supported without circuit modification.

Q: What is the difference between 0SFE07.5V and 0SFE07.5VP? A: The primary difference is packaging. 0SFE07.5V is supplied in bulk packaging, while 0SFE07.5VP is supplied in card packaging (5-pack). Electrical and mechanical specifications are identical, making them functionally interchangeable.

Q: Does the UL approval on 030707.5H affect substitution compatibility? A: UL approval on 030707.5H indicates third-party certification for safety compliance. If the original circuit design specifies UL-approved components, 030707.5H is the appropriate selection. For applications without specific certification requirements, all three parts are equivalent.

Q: Are these fuses compatible with standard 7AG fuse holders? A: Yes. All three parts are designed for 7AG fuse holders and require a holder for installation. The 1/4" x 7/8" mechanical dimensions ensure compatibility with standard 7AG holder specifications.

Q: What is the significance of the DC Cold Resistance specification on 030707.5H? A: DC Cold Resistance (0.0113 Ohms) is a measured electrical characteristic of the fuse element. This parameter is provided for 030707.5H but not specified for the other parts. It does not affect substitution compatibility and is informational for circuit analysis purposes.