Littelfuse 0481002.H Indicating Fuse - Equivalent & Substitute Parts

Part Overview

The Littelfuse 0481002.H is an indicating fuse rated at 2A, 125VAC/125VDC with fast-blow response characteristics. This component is designed for telecom applications requiring visual fault indication and is actively manufactured. Substitute parts are identified when equivalent electrical ratings and mechanical compatibility are maintained within the specified parameter tolerances for this fuse category.

Substiute Parts

0481002.H

Littelfuse Inc.In Stock: 8840481002.H Datasheet

Current PartRFQ

BK/GMT-2A

Eaton - Bussmann Electrical DivisionIn Stock: 3885BK/GMT-2A Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Littelfuse 0481002.H is determined by the following critical parameters:

• Current Rating: Must be 2A
• Voltage Rating - AC: Must be 125 VAC
• Fuse Type: Must be Indicating Fuse
• Response Time: Must be Fast Blow
• Mounting Type: Must require holder compatibility
• RoHS Compliance: Must maintain ROHS3 status

The Eaton - Bussmann BK/GMT-2A meets the primary electrical requirements for AC operation and current rating. However, the DC voltage rating differs (60 VDC versus 125 VDC), which restricts its application scope to circuits where DC voltage does not exceed 60 VDC.

Parameter Comparison

Engineering Selection Recommendations

Both the Littelfuse 0481002.H and Eaton BK/GMT-2A are active products with ROHS3 compliance and UR/CSA approvals. Selection between these parts depends on the DC voltage requirement of the application:

• Use Littelfuse 0481002.H for circuits requiring full 125 VDC rating capability
• Use Eaton BK/GMT-2A only in applications where DC voltage does not exceed 60 VDC

Both parts maintain identical AC voltage ratings (125 VAC), current ratings (2A), and fast-blow response characteristics. Mechanical compatibility with standard fuse holders is equivalent for both components.

Frequently Asked Questions (FAQ)

Q: Can the Eaton BK/GMT-2A be used as a direct replacement for the Littelfuse 0481002.H in all applications?

A: No. The Eaton part has a reduced DC voltage rating of 60 VDC compared to the Littelfuse rating of 125 VDC. Substitution is valid only for circuits where the DC voltage does not exceed 60 VDC.

Q: Are the physical dimensions compatible between these two fuses?

A: Both fuses require a holder and are classified as Alarm Indicator package types. Dimensions differ slightly (Littelfuse: 16.90mm x 5.80mm x 19.60mm; Eaton: 17.48mm x 3.23mm x 20.57mm). Verify holder compatibility before installation.

Q: Do both parts meet the same regulatory approvals?

A: The Littelfuse 0481002.H carries CSA and UR approvals. The Eaton BK/GMT-2A carries UR approval. Verify that your application requirements align with the specific approval agencies listed for each part.

Q: What is the significance of the melting I²t value for the Littelfuse 0481002.H?

A: The melting I²t of 5.29 defines the thermal energy required to melt the fuse element. This parameter is used in circuit protection calculations and coordination studies. Equivalent I²t values are necessary for proper substitution in coordinated protection schemes.

Q: Are both parts RoHS compliant?

A: Yes. Both the Littelfuse 0481002.H and Eaton BK/GMT-2A are ROHS3 compliant and REACH unaffected.