Littelfuse 0312015.H Glass Cartridge Fuse 15A 32VAC Equivalent & Substitute Parts

Part Overview

The Littelfuse 0312015.H is a 15 A, 32 V AC/DC glass cartridge fuse with fast-blow response characteristics, designed for 3AB and 3AG holder applications. This part operates across a temperature range of -55°C to 125°C and features a compact 1/4" x 1-1/4" form factor. The 0312015.H is classified as obsolete; however, direct parametric equivalents and substitute parts remain available from Littelfuse and Eaton to maintain circuit protection functionality in existing designs.

Substiute Parts

0312015.H

Littelfuse Inc.In Stock: 9230312015.H Datasheet

Current PartRFQ

0312015.HXP

Littelfuse Inc.In Stock: 21380312015.HXP Datasheet

DirectRFQ

0312015.MXP

LittelfuseIn Stock: 16240312015.MXP Datasheet

Parametric EquivalentRFQ

0312015.VXP

Littelfuse Inc.In Stock: 8620312015.VXP Datasheet

Parametric EquivalentRFQ

AGC-15-R

Eaton - Electronics DivisionIn Stock: 1030AGC-15-R Datasheet

Parametric EquivalentRFQ

BK-AGC-B-15-R

Eaton - Electronics DivisionIn Stock: 1005BK-AGC-B-15-R Datasheet

Parametric EquivalentRFQ

BK/AGC-15-R

Eaton - Electronics DivisionIn Stock: 7735BK/AGC-15-R Datasheet

Parametric EquivalentRFQ

BK/AGC-15EX

Eaton - Electronics DivisionIn Stock: 795BK/AGC-15EX Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 0312015.H is determined by strict equivalence across the following parameters:

• Current Rating: 15 A (exact match required)
• Voltage Rating (AC): 32 V (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)
• Mounting Type: Requires Holder (exact match required)
• Operating Temperature Range: -55°C to 125°C (exact match required)

All substitute parts listed below meet these criteria. Substitutes are grouped into two categories: direct Littelfuse manufacturer equivalents (0312015.HXP, 0312015.MXP, 0312015.VXP) and parametric equivalents from Eaton Electronics Division (AGC-15-R, BK-AGC-B-15-R, BK/AGC-15-R, BK/AGC-15EX).

Parameter Comparison

Engineering Selection Recommendations

For applications requiring the 0312015.H, the following selection criteria apply:

Littelfuse Direct Equivalents (0312015.HXP, 0312015.MXP, 0312015.VXP): These parts maintain identical electrical and mechanical specifications to the original 0312015.H while offering active product status and ROHS3 compliance. All three are manufactured by Littelfuse and are suitable for direct substitution. The 0312015.HXP and 0312015.MXP are available in higher quantities (2066 and 1543 units respectively), while 0312015.VXP offers 770 units in stock.

Eaton AGC Series Equivalents (AGC-15-R, BK-AGC-B-15-R, BK/AGC-15-R, BK/AGC-15EX): These parts meet all parametric requirements and are cross-compatible with 3AB and 3AG holders. The Eaton parts feature higher breaking capacity (1 kA versus 300 A for Littelfuse variants) and slightly lower DC cold resistance (0.005 Ohms versus 0.0052 Ohms). BK/AGC-15-R offers the highest inventory availability (7710 units) and ROHS3 compliance. AGC-15-R provides RoHS compliance with 997 units available. BK-AGC-B-15-R and BK/AGC-15EX are RoHS non-compliant alternatives.

For new designs or compliance-sensitive applications, prioritize 0312015.HXP, 0312015.MXP, 0312015.VXP, or BK/AGC-15-R due to active product status and regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can I use 0312015.HXP as a direct replacement for 0312015.H?

A: Yes. The 0312015.HXP is a direct Littelfuse equivalent with identical current rating (15 A), voltage rating (32 V AC), fuse type (cartridge, glass), response time (fast blow), and package specifications (3AB, 3AG, 1/4" x 1-1/4"). The primary difference is product status (active versus obsolete) and RoHS compliance (ROHS3 compliant versus non-compliant).

Q: What is the difference between Littelfuse and Eaton substitute parts?

A: Littelfuse parts (0312015.HXP, 0312015.MXP, 0312015.VXP) maintain the exact DC cold resistance of the original (0.0052 Ohms) and breaking capacity of 300 A. Eaton parts (AGC series) feature higher breaking capacity (1 kA) and slightly lower DC cold resistance (0.005 Ohms). Both groups are mechanically and electrically compatible with 3AB and 3AG holders and meet the 15 A, 32 V AC/DC specification.

Q: Are all substitute parts compatible with existing 3AB and 3AG holders?

A: Yes. All substitute parts listed maintain the identical package specification (3AB, 3AG, 1/4" x 1-1/4") and mounting type (requires holder), ensuring mechanical compatibility with existing holder installations.

Q: Which substitute part offers the best availability?

A: BK/AGC-15-R from Eaton offers the highest inventory availability with 7710 units in stock. Among Littelfuse equivalents, 0312015.HXP provides the highest availability with 2066 units.

Q: Do I need to consider RoHS compliance when selecting a substitute?

A: RoHS compliance should be evaluated based on application requirements and regulatory jurisdiction. ROHS3-compliant options include 0312015.HXP, 0312015.MXP, 0312015.VXP, AGC-15-R, and BK/AGC-15-R. Non-compliant alternatives are BK-AGC-B-15-R and BK/AGC-15EX.

Q: What is the significance of breaking capacity differences between Littelfuse and Eaton parts?

A: Breaking capacity indicates the maximum current the fuse can safely interrupt at rated voltage. Littelfuse equivalents specify 300 A breaking capacity, while Eaton AGC series specifies 1 kA. Both values exceed the 15 A rated current, ensuring safe operation. Selection should align with circuit protection requirements and system design specifications.