Equivalent & Substitute Parts for Littelfuse 0362004.H

Part Overview

The Littelfuse 0362004.H is a 4 A, 125 V AC/DC fast-blow glass cartridge fuse in 8AG form factor (1/4" x 1"). This fuse is designed for circuits requiring fast response protection and operates with a holder-based mounting configuration. The part maintains active product status with 1079 units in current inventory. Substitute parts are identified to address application requirements where voltage rating, breaking capacity, or certification scope may differ from the original specification.

Substiute Parts

0362004.H

Littelfuse Inc.In Stock: 11870362004.H Datasheet

Current PartRFQ

BK/AGX-4

Eaton - Electronics DivisionIn Stock: 1215BK/AGX-4 Datasheet

DirectRFQ

AGX-4

Eaton - Electronics DivisionIn Stock: 750AGX-4 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Littelfuse 0362004.H are classified based on the following substitution criteria:

Parametric Equivalent (AGX-4): Shares identical current rating (4 A), voltage rating (125 V AC), fuse type (cartridge glass), response time (fast blow), and package form factor (8AG, 1/4" x 1"). Physical dimensions match exactly. This part qualifies as a direct parametric equivalent with expanded certification scope (CSA, cURus, UL versus CSA, UL).

Direct Manufacturer Substitute (BK/AGX-4): Maintains identical current rating (4 A), fuse type (cartridge glass), response time (fast blow), and package form factor (8AG). Voltage rating is elevated to 250 V AC, and breaking capacity is specified at 200 A. Physical dimensions show minor variation (1.042" L versus 1.000" L). This part functions as a voltage-rated substitute suitable for applications requiring higher voltage withstand capability.

Parameter Comparison

Engineering Selection Recommendations

For 125 V AC applications: The Eaton AGX-4 provides parametric equivalence to the Littelfuse 0362004.H with expanded certification coverage (addition of cURus). Both parts maintain identical electrical and mechanical specifications, with AGX-4 offering broader regulatory approval scope.

For 250 V AC applications: The Eaton BK/AGX-4 serves as the appropriate substitute when circuit voltage exceeds 125 V. This part maintains the 4 A current rating and fast-blow response characteristic while providing 250 V voltage withstand capability. The minor physical dimension variation (0.042" additional length) remains within 8AG form factor compatibility for standard fuse holders.

Certification considerations: All three parts carry active product status. The Littelfuse 0362004.H and Eaton AGX-4 share CSA and UL approvals. The Eaton BK/AGX-4 carries cULus certification. Selection should align with circuit voltage requirements and applicable regulatory standards for the end application.

Frequently Asked Questions (FAQ)

Q: Can AGX-4 be used as a direct replacement for 0362004.H? A: Yes. The Eaton AGX-4 is a parametric equivalent with identical current rating (4 A), voltage rating (125 V AC), fuse type (cartridge glass), response time (fast blow), and 8AG package form factor. Physical dimensions match exactly (0.250" Dia x 1.000" L).

Q: When should BK/AGX-4 be selected instead of AGX-4? A: The BK/AGX-4 is selected for circuits operating at 250 V AC. It maintains the 4 A current rating and fast-blow response but provides elevated voltage withstand capability. Use this part only when the circuit voltage requirement exceeds 125 V.

Q: Are there physical compatibility concerns with BK/AGX-4? A: The BK/AGX-4 shows a minor length variation (1.042" versus 1.000"). This remains within 8AG form factor specifications and is compatible with standard 8AG fuse holders. Verify holder clearance in space-constrained applications.

Q: What is the significance of breaking capacity specification? A: Breaking capacity (200 A) indicates the maximum fault current the fuse can safely interrupt at rated voltage. The Littelfuse 0362004.H does not specify this parameter. Both Eaton substitutes provide 200 A breaking capacity, offering defined fault protection performance.

Q: Do all three parts share the same certifications? A: No. The Littelfuse 0362004.H carries CSA and UL approvals. The Eaton AGX-4 adds cURus certification. The Eaton BK/AGX-4 carries cULus certification. Select based on applicable regulatory requirements for your application region and industry standard.

Q: Are there RoHS compliance differences? A: All three parts are RoHS non-compliant. No RoHS-compliant alternatives are provided in this substitution set.