GMC-8-R Equivalent & Substitute Parts Reference

Part Overview

The GMC-8-R is an 8 A, 125 V AC/DC glass cartridge fuse manufactured by Eaton - Electronics Division. This medium-blow fuse is designed for 5mm x 20mm holder applications and is classified as Active product status. Substitute parts are identified when original stock availability is limited, when alternative manufacturers offer equivalent electrical and mechanical specifications, or when procurement from multiple sources is required for supply chain continuity.

Substiute Parts

GMC-8-R

Eaton - Electronics DivisionIn Stock: 677GMC-8-R Datasheet

Current PartRFQ

BK/GMC-8-R

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

DirectRFQ

0233008.MXP

Littelfuse Inc.In Stock: 93160233008.MXP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the GMC-8-R are grouped into two categories based on substitution relationship type:

Direct Manufacturer Substitute (Same Manufacturer): BK/GMC-8-R is manufactured by Eaton - Electronics Division and shares identical electrical and mechanical specifications with the main part number GMC-8-R. Both parts carry the same current rating (8 A), voltage rating (125 V AC), fuse type (cartridge glass), package dimensions (5mm x 20mm), response time (medium blow), and approval certifications (MITI, UL). The primary distinction is packaging designation and inventory availability.

Similar Manufacturer Substitute (Cross-Manufacturer): 0233008.MXP is manufactured by Littelfuse Inc. and qualifies as a substitute based on matching electrical parameters: 8 A current rating, 125 V AC voltage rating, medium-blow response time, and identical 5mm x 20mm package dimensions. Both parts are glass cartridge fuses requiring a holder and maintain ROHS3 compliance. Differences exist in breaking capacity (10 kA versus 200 A) and operating temperature range (-55°C ~ 125°C for Littelfuse versus unspecified for Eaton), with Littelfuse offering broader regulatory approvals (CE, CSA, PSE, UL).

Parameter Comparison

Engineering Selection Recommendations

GMC-8-R and BK/GMC-8-R Selection: Both Eaton part numbers are functionally equivalent and interchangeable. Selection between GMC-8-R and BK/GMC-8-R should be based on procurement availability and inventory status. Both parts maintain Active product status and identical compliance certifications (MITI, UL). BK/GMC-8-R currently shows higher inventory availability (946 Pcs versus 635 Pcs), making it suitable for applications requiring immediate stock allocation.

0233008.MXP (Littelfuse) Selection: The Littelfuse 0233008.MXP substitute is appropriate for applications requiring extended regulatory compliance (CE, CSA, PSE certifications in addition to UL) or broader operating temperature range (-55°C ~ 125°C). The higher breaking capacity (10 kA) provides enhanced fault protection in high-fault-current environments. Littelfuse inventory availability (9300 Pcs) supports high-volume procurement requirements. The melting I²t value (169.435) and DC cold resistance (0.0084 Ohms) remain within acceptable tolerance for 8 A, 125 V AC/DC cartridge fuse applications.

All three part numbers are ROHS3 compliant and suitable for direct substitution in 5mm x 20mm holder-based fuse circuits.

Frequently Asked Questions (FAQ)

Q: Can GMC-8-R be directly replaced with BK/GMC-8-R? A: Yes. Both are manufactured by Eaton - Electronics Division with identical electrical specifications (8 A, 125 V AC), fuse type (cartridge glass), package dimensions (5mm x 20mm), response time (medium blow), and approval certifications (MITI, UL). Physical and electrical interchangeability is complete.

Q: Is 0233008.MXP (Littelfuse) a direct substitute for GMC-8-R? A: Yes, with noted parameter differences. The Littelfuse part matches all critical electrical parameters: 8 A current rating, 125 V AC voltage rating, medium-blow response, and 5mm x 20mm package dimensions. Breaking capacity differs (10 kA versus 200 A), and Littelfuse provides broader regulatory approvals (CE, CSA, PSE, UL) and specified operating temperature range (-55°C ~ 125°C).

Q: What are the key parameters that determine fuse substitutability? A: Current rating (8 A), voltage rating (125 V AC), fuse type (cartridge glass), package dimensions (5mm x 20mm), response time (medium blow), and mounting requirement (holder-based) are the primary substitution criteria. All three part numbers match these parameters.

Q: Does the breaking capacity difference between GMC-8-R (200 A) and 0233008.MXP (10 kA) affect substitutability? A: Breaking capacity indicates the maximum fault current the fuse can safely interrupt. The 0233008.MXP higher breaking capacity (10 kA) provides enhanced protection in high-fault-current circuits. Selection depends on circuit fault current requirements. Both are rated for 125 V AC operation.

Q: Are all three fuses compatible with the same 5mm x 20mm holder? A: Yes. All three part numbers (GMC-8-R, BK/GMC-8-R, and 0233008.MXP) share identical physical dimensions (0.205" Dia x 0.787" L / 5.20mm x 20.00mm) and require a 5mm x 20mm holder. Physical interchangeability in holder-based applications is confirmed.

Q: What is the difference between GMC-8-R and BK/GMC-8-R packaging designations? A: Both are Eaton products with identical specifications. The designation difference (GMC-8-R versus BK/GMC-8-R) reflects packaging or distribution channel variation. Electrical and mechanical properties are equivalent.

Q: Which substitute offers the broadest regulatory compliance? A: The Littelfuse 0233008.MXP carries approvals from CE, CSA, PSE, and UL, providing broader international regulatory coverage compared to GMC-8-R and BK/GMC-8-R (MITI, UL only).