Littelfuse 0301015.H Glass Cartridge Fuse - Equivalent & Substitute Parts

Part Overview

The Littelfuse 0301015.H is a 15 A, 32 V AC/DC glass cartridge fuse in the 1AG form factor (1/4" x 5/8"). This fuse is designed for circuit protection in applications requiring medium-blow response characteristics. The part is currently active in production and maintains an inventory of 1012 units. Glass cartridge fuses of this specification are essential components in electrical systems where reliable overcurrent protection and predictable response times are critical to system performance and safety.

Substiute Parts

0301015.H

Littelfuse Inc.In Stock: 10300301015.H Datasheet

Current PartRFQ

AGA-15

Eaton - Electronics DivisionIn Stock: 1062AGA-15 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Littelfuse 0301015.H is determined by strict equivalence across the following critical parameters:

• Current Rating: 15 A (exact match required)
• Voltage Rating (AC): 32 V (exact match required)
• Package / Case: 1AG, 1/4" x 5/8" (exact match required)
• Fuse Type: Cartridge, Glass (exact match required)
• Mounting Type: Requires Holder (exact match required)

The substitute part AGA-15 from Eaton - Electronics Division meets all mandatory equivalence criteria. Both parts share identical current ratings, voltage ratings, physical dimensions, and form factors. This ensures mechanical and electrical compatibility within existing fuse holders and circuit protection applications.

Parameter Comparison

Engineering Selection Recommendations

Both the Littelfuse 0301015.H and Eaton AGA-15 are active production components suitable for direct substitution based on electrical and mechanical parameter equivalence. The Eaton AGA-15 provides additional documented specifications including breaking capacity (1 kA) and UR approval agency certification, which may be advantageous in applications requiring formal compliance documentation. Both parts maintain identical current and voltage ratings, physical dimensions, and form factors, ensuring compatibility with existing 1AG fuse holders and circuit protection infrastructure. Selection between these parts should be based on availability, supply chain requirements, and any application-specific compliance or certification mandates.

Frequently Asked Questions (FAQ)

Q: Can the Eaton AGA-15 be used as a direct replacement for the Littelfuse 0301015.H?

A: Yes. Both parts are 15 A, 32 V AC/DC glass cartridge fuses in the 1AG form factor with identical physical dimensions (0.250" Dia x 0.625" L). They are mechanically and electrically compatible for use in the same fuse holders and circuit protection applications.

Q: What is the difference between Medium Blow and Fast Blow response times?

A: Response time classification indicates the speed at which the fuse element melts under overcurrent conditions. Medium Blow fuses tolerate brief current surges before opening, while Fast Blow fuses open more quickly. The choice between these characteristics depends on the specific application's tolerance for transient overcurrents.

Q: Are both parts RoHS compliant?

A: No. Both the Littelfuse 0301015.H and Eaton AGA-15 are marked as RoHS non-compliant. Applications requiring RoHS-compliant components must identify alternative fuse specifications.

Q: What does the 1AG package designation mean?

A: 1AG is a standardized form factor for glass cartridge fuses. The designation indicates a fuse with 1/4" diameter and 5/8" length (6.35mm x 15.88mm). This standardization ensures physical compatibility across fuse holders designed for the 1AG specification.

Q: Do these fuses require a holder for installation?

A: Yes. Both the Littelfuse 0301015.H and Eaton AGA-15 are cartridge fuses that require a dedicated fuse holder for installation. They cannot be used in applications designed for other fuse types or form factors.

Q: What is the significance of the UR approval on the Eaton AGA-15?

A: UR (Underwriters Laboratories) approval indicates that the Eaton AGA-15 has been tested and certified to meet specific safety and performance standards. This certification may be required for applications subject to regulatory compliance or industry-specific safety mandates.