Equivalent & Substitute Parts for BK1/GMC-8-R

Part Overview

The BK1/GMC-8-R is an 8 A, 125 V AC/DC glass cartridge fuse manufactured by Eaton - Electronics Division. This fuse is designed for use in applications requiring a 5mm x 20mm form factor and operates with a medium blow response time. The part is currently active in production with 818 pieces in stock. Alternative equivalent parts are available to support supply chain flexibility and procurement options across multiple manufacturers while maintaining identical electrical and mechanical specifications.

Substiute Parts

BK1/GMC-8-R

Eaton - Electronics DivisionIn Stock: 878BK1/GMC-8-R Datasheet

Current PartRFQ

BK/GMC-8-R

Eaton - Electronics DivisionIn Stock: 972BK/GMC-8-R Datasheet

Parametric EquivalentRFQ

0233008.MXP

Littelfuse Inc.In Stock: 93160233008.MXP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the BK1/GMC-8-R are qualified based on strict equivalence across the following critical parameters:

• Current Rating: 8 A (exact match required)
• Voltage Rating (AC): 125 V (exact match required)
• Fuse Type: Cartridge, Glass (exact match required)
• Package / Case: 5mm x 20mm (exact match required)
• Response Time: Medium Blow (exact match required)
• Mounting Type: Requires Holder (exact match required)
• RoHS Status: ROHS3 Compliant (exact match required)

All identified substitute parts meet these criteria and are therefore electrically and mechanically interchangeable with the main part number in applications designed for the BK1/GMC-8-R specification.

Parameter Comparison

Engineering Selection Recommendations

All three part numbers—BK1/GMC-8-R, BK/GMC-8-R, and 0233008.MXP—are active products with current manufacturing status and full RoHS3 compliance. Selection between these equivalents should be based on the following factors:

BK1/GMC-8-R and BK/GMC-8-R (Eaton): Both are manufactured by Eaton - Electronics Division within the GMC series. These parts are functionally identical and differ only in packaging designation. The BK/GMC-8-R variant has higher current inventory availability (946 pieces versus 818 pieces).

0233008.MXP (Littelfuse): This part is manufactured by Littelfuse Inc. within the 233 series. It provides the highest inventory availability (9300 pieces) and the broadest approval agency coverage (CE, CSA, PSE, UL). The breaking capacity is significantly higher at 10kA compared to 200A for the Eaton variants, and the DC cold resistance is marginally lower at 0.0084 Ohms. Operating temperature range is specified as -55°C to 125°C.

All three parts meet the core electrical and mechanical requirements for direct substitution in applications specified for 8 A, 125 V AC/DC, 5mm x 20mm glass cartridge fuses with medium blow response.

Frequently Asked Questions (FAQ)

Q: Can BK/GMC-8-R be used as a direct replacement for BK1/GMC-8-R?

A: Yes. Both parts are manufactured by Eaton - Electronics Division and share identical electrical and mechanical specifications: 8 A current rating, 125 V AC voltage rating, 5mm x 20mm package, medium blow response time, and cartridge glass fuse type. They are mechanically and electrically interchangeable.

Q: Is the Littelfuse 0233008.MXP compatible with applications designed for the BK1/GMC-8-R?

A: Yes. The 0233008.MXP meets all critical substitution parameters: 8 A current rating, 125 V AC voltage rating, 5mm x 20mm package, medium blow response time, and cartridge glass fuse type. The part is RoHS3 compliant and active in production.

Q: What are the differences between the Eaton and Littelfuse variants?

A: The primary differences are manufacturer, series designation, breaking capacity, and approval agencies. The Littelfuse 0233008.MXP has a higher breaking capacity (10kA versus 200A) and broader regulatory approvals (CE, CSA, PSE, UL versus MITI, UR/UL). DC cold resistance is marginally lower in the Littelfuse part (0.0084 Ohms versus 0.009 Ohms). Operating temperature range is specified for the Littelfuse part (-55°C to 125°C).

Q: Does the higher breaking capacity of the Littelfuse part affect compatibility?

A: No. Higher breaking capacity is a superset capability and does not affect compatibility. The part remains suitable for all applications designed for the BK1/GMC-8-R specification.

Q: Are all three parts RoHS3 compliant?

A: Yes. All three parts—BK1/GMC-8-R, BK/GMC-8-R, and 0233008.MXP—are RoHS3 compliant.

Q: Which part should be selected based on availability?

A: The 0233008.MXP (Littelfuse) offers the highest inventory availability at 9300 pieces. The BK/GMC-8-R (Eaton) offers 946 pieces, and the BK1/GMC-8-R offers 818 pieces. Selection should align with procurement lead time and supply chain requirements.

Q: Do these fuses require a holder for installation?

A: Yes. All three parts are cartridge fuses that require a holder for installation. The 5mm x 20mm form factor is standard across all variants.