Littelfuse 0237006.M Glass Cartridge Fuse 6A 125VAC 5x20mm Equivalent & Substitute Parts

Part Overview

The Littelfuse 0237006.M is a 6A 125VAC glass cartridge fuse in 5x20mm form factor, classified as obsolete. This part requires a holder for installation and is designed for medium-blow response applications. Due to its obsolete status, equivalent active alternatives are available that maintain identical electrical and mechanical specifications while offering improved availability and compliance with current standards.

Substiute Parts

0237006.M

Littelfuse Inc.In Stock: 10580237006.M Datasheet

Current PartRFQ

0233006.MXP

Littelfuse Inc.In Stock: 14610233006.MXP Datasheet

MFR RecommendedRFQ

0233006.MXBP

Littelfuse Inc.In Stock: 9100233006.MXBP Datasheet

Parametric EquivalentRFQ

0233006.MXF11P

LittelfuseIn Stock: 7000233006.MXF11P Datasheet

Parametric EquivalentRFQ

BK/GMC-6-R

Eaton - Electronics DivisionIn Stock: 1111BK/GMC-6-R Datasheet

Parametric EquivalentRFQ

BK1/GMC-6-R

Eaton - Electronics DivisionIn Stock: 1176BK1/GMC-6-R Datasheet

Parametric EquivalentRFQ

GMC-6-R

Eaton - Electronics DivisionIn Stock: 1165GMC-6-R Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 0237006.M is determined by strict equivalence across the following parameters: current rating (6A), voltage rating (125VAC), fuse type (cartridge glass), physical dimensions (5x20mm), response time (medium blow), and breaking capacity (10kA). All substitute parts listed maintain these specifications. The primary distinction between substitute groups is manufacturer identity and compliance certifications. Littelfuse 233 series parts (0233006.MXP, 0233006.MXBP, 0233006.MXF11P) are direct manufacturer successors with active product status and enhanced RoHS3 compliance. Eaton GMC series parts (BK/GMC-6-R, BK1/GMC-6-R, GMC-6-R) provide parametric equivalence from an alternative manufacturer with equivalent electrical performance.

Parameter Comparison

Engineering Selection Recommendations

For direct replacement of the obsolete 0237006.M, the Littelfuse 233 series substitutes (0233006.MXP, 0233006.MXBP, 0233006.MXF11P) are the primary selection. These parts are active products from the original manufacturer with identical electrical and mechanical specifications, enhanced RoHS3 compliance, and expanded operating temperature range (-55°C to 125°C). All three Littelfuse alternatives carry CE, CSA, KC, PSE, and UL certifications, providing comprehensive global compliance coverage.

The Eaton GMC series alternatives (BK/GMC-6-R, BK1/GMC-6-R, GMC-6-R) provide parametric equivalence with identical current, voltage, fuse type, package dimensions, response time, and breaking capacity. These parts carry CSA, KC, MITI, and UL certifications. Selection between Littelfuse and Eaton alternatives depends on supply chain requirements, existing qualification history, and regional certification priorities. The Littelfuse 233 series offers superior availability (1,423 to 1,423 units in stock) and enhanced compliance posture. Eaton GMC series parts offer comparable availability (1,064 to 1,086 units in stock) with alternative certification pathways.

Frequently Asked Questions (FAQ)

Q: Can I directly replace 0237006.M with any of the listed substitutes? A: Yes. All listed substitutes maintain identical electrical specifications (6A, 125VAC, 10kA breaking capacity) and physical dimensions (5x20mm). All are glass cartridge fuses with medium-blow response requiring a holder. Direct mechanical and electrical compatibility is confirmed.

Q: What is the difference between Littelfuse 233 series and Eaton GMC series substitutes? A: Both groups meet the core electrical and mechanical requirements. Littelfuse 233 series parts are active successors from the original manufacturer with RoHS3 compliance and specified operating temperature range. Eaton GMC series parts provide equivalent performance from an alternative manufacturer with different certification pathways (MITI included, PSE not listed).

Q: Are there differences in DC Cold Resistance between substitutes? A: Yes. Littelfuse 233 series parts specify 0.0179 Ohms, while Eaton GMC series parts specify 0.013 Ohms. Both values are within acceptable ranges for 6A cartridge fuses and do not affect functional compatibility in standard applications.

Q: What is the significance of Melting I²t values? A: Littelfuse 233 series parts specify 131.455, while Eaton GMC series parts specify 88. These values describe thermal energy dissipation characteristics. Both values are consistent with medium-blow response classification and 6A current rating. Selection should align with existing system thermal design parameters.

Q: Why is the original 0237006.M obsolete? A: The 0237006.M is classified as obsolete by the manufacturer. Active alternatives in the Littelfuse 233 series and Eaton GMC series provide equivalent functionality with current product support, improved compliance certifications, and better long-term availability.

Q: Which substitute offers the best compliance coverage? A: Littelfuse 233 series parts (0233006.MXP, 0233006.MXBP, 0233006.MXF11P) carry CE, CSA, KC, PSE, and UL certifications. This combination provides comprehensive coverage for North American (UL, CSA), European (CE), Asian (KC, PSE), and Japanese markets. Eaton GMC series parts carry CSA, KC, MITI, and UL certifications, omitting CE and PSE.

Q: Can I mix Littelfuse and Eaton fuses in the same circuit? A: All substitutes are electrically and mechanically equivalent for the specified 6A 125VAC application. Circuit design does not require homogeneous manufacturer sourcing. However, maintenance and spare parts logistics may benefit from standardizing on a single manufacturer within a system.