Littelfuse 0311025.H Equivalent & Substitute Parts

Part Overview

The Littelfuse 0311025.H is a 25 A, 32 V AC/DC fast-blow glass fuse cartridge in 3AB/3AG package format (1/4" x 1-1/4"). This component is classified as Active product status and is ROHS3 compliant. Substitute parts are identified when equivalent electrical ratings, mechanical dimensions, and package specifications align with the original component, enabling direct replacement in applications requiring identical performance characteristics.

Substiute Parts

0311025.H

Littelfuse Inc.In Stock: 9240311025.H Datasheet

Current PartRFQ

0312025.HXP

Littelfuse Inc.In Stock: 11200312025.HXP Datasheet

Parametric EquivalentRFQ

0312025.MXP

Littelfuse Inc.In Stock: 31740312025.MXP Datasheet

Parametric EquivalentRFQ

0312025.VXP

Littelfuse Inc.In Stock: 9320312025.VXP Datasheet

Parametric EquivalentRFQ

AGC-25-R

Eaton - Electronics DivisionIn Stock: 801AGC-25-R Datasheet

Parametric EquivalentRFQ

BK/AGC-25-R

Eaton - Electronics DivisionIn Stock: 1855BK/AGC-25-R Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 0311025.H are qualified based on the following criteria:

• Current Rating: 25 A (exact match required)
• Voltage Rating: 32 V AC (exact match required)
• Fuse Type: Cartridge, Glass (exact match required)
• Response Time: Fast Blow (exact match required)
• Package / Case: 3AB, 3AG, 1/4" x 1-1/4" (exact match required)
• Physical Dimensions: 0.250" Dia x 1.250" L (exact match required)
• Mounting Type: Requires Holder (exact match required)

All identified substitute parts meet these core electrical and mechanical parameters, ensuring functional equivalence and direct interchangeability in applications designed for the 0311025.H.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed maintain Active product status and meet the core electrical and mechanical specifications of the 0311025.H. Selection among substitutes should be based on:

• Approval Agency alignment: The 0311025.H carries CSA and UL certifications. Substitute parts 0312025.HXP and 0312025.MXP include cULus certification, while 0312025.VXP, AGC-25-R, and BK/AGC-25-R maintain CSA and UL certifications consistent with the original.
• RoHS Compliance: All substitutes maintain ROHS3 or equivalent RoHS compliance status.
• Manufacturer: Littelfuse 312 series parts (0312025.HXP, 0312025.MXP, 0312025.VXP) and Eaton AGC series parts (AGC-25-R, BK/AGC-25-R) are functionally equivalent alternatives.

Frequently Asked Questions (FAQ)

Q: Can 0312025.HXP, 0312025.MXP, and 0312025.VXP be used interchangeably with 0311025.H?

A: Yes. These Littelfuse 312 series parts share identical electrical ratings (25 A, 32 V AC), response time (Fast Blow), and mechanical dimensions (0.250" Dia x 1.250" L). All are ROHS3 compliant and Active status.

Q: What is the difference between Littelfuse AGC series (0311025.H) and Littelfuse 312 series (0312025.HXP, 0312025.MXP, 0312025.VXP)?

A: Both series meet the specified electrical and mechanical parameters. The 312 series parts provide documented breaking capacity (300 A) and operating temperature range (-55°C ~ 125°C), while the AGC series (0311025.H) does not specify these parameters in the provided data.

Q: Are Eaton AGC-25-R and BK/AGC-25-R compatible with the 0311025.H?

A: Yes. Both Eaton parts match the 25 A, 32 V AC rating, Fast Blow response, and 3AB/3AG package format. Both are CSA and UL certified and maintain Active product status.

Q: What is the significance of the breaking capacity difference between Littelfuse 312 series (300 A) and Eaton AGC series (1 kA)?

A: Breaking capacity indicates the maximum fault current the fuse can safely interrupt. Both values exceed the specified electrical parameters of this application. Selection should align with system fault current requirements and circuit protection design specifications.

Q: Do all substitute parts require the same holder as the 0311025.H?

A: Yes. All substitute parts are specified for 3AB and 3AG package formats with identical 1/4" x 1-1/4" dimensions, requiring the same holder type as the original component.