GMA-5-R Glass Cartridge Fuse 5A 125VAC 5x20mm Equivalent & Substitute Parts

Part Overview

The GMA-5-R is a fast-blow glass cartridge fuse manufactured by Eaton - Electronics Division, rated for 5 amperes at 125 volts AC/DC. This fuse is designed for use in applications requiring a 5mm x 20mm form factor and operates with a breaking capacity of 10kA at rated voltage. The part is currently active in production and widely stocked. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity for this standard fuse category.

Substiute Parts

GMA-5-R

Eaton - Electronics DivisionIn Stock: 1092GMA-5-R Datasheet

Current PartRFQ

BK/GMA-5-R

Eaton - Electronics DivisionIn Stock: 2513BK/GMA-5-R Datasheet

DirectRFQ

0235005.HXP

Littelfuse Inc.In Stock: 200460235005.HXP Datasheet

DirectRFQ

0235005.MXP

Littelfuse Inc.In Stock: 33910235005.MXP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the GMA-5-R are qualified based on strict electrical and mechanical parameter matching. All substitute parts must meet the following criteria:

Critical Matching Parameters:

• Current Rating: 5 A (exact match required)
• Voltage Rating (AC): 125 V (exact match required)
• Fuse Type: Cartridge, Glass (exact match required)
• Response Time: Fast Blow (exact match required)
• Package / Case: 5mm x 20mm (exact match required)
• Breaking Capacity @ Rated Voltage: 10kA (exact match required)
• Mounting Type: Requires Holder (exact match required)

All identified substitute parts meet these mandatory criteria. Variations in secondary parameters such as melting I²t, DC cold resistance, and operating temperature range do not affect substitution eligibility within this product category, as these parameters remain within acceptable tolerances for the specified electrical ratings and form factor.

Parameter Comparison

Engineering Selection Recommendations

All four parts listed are active products with full regulatory compliance. Selection between GMA-5-R, BK/GMA-5-R, 0235005.HXP, and 0235005.MXP is based on availability, supply chain requirements, and manufacturer preference.

Eaton GMA Series (GMA-5-R and BK/GMA-5-R): Both parts are identical in electrical and mechanical specifications. BK/GMA-5-R carries higher current inventory (2483 pcs vs. 1032 pcs). Both hold CSA, PSE, and UL certifications.

Littelfuse 235 Series (0235005.HXP and 0235005.MXP): Both parts meet all critical electrical and mechanical parameters. The 235 series holds expanded regulatory approvals including CE and KC certifications in addition to CSA, PSE, and UL. Operating temperature range is specified as -55°C to 125°C. 0235005.HXP carries significantly higher inventory (20006 pcs). Both parts are functionally equivalent to the GMA series within the specified electrical ratings.

All parts are ROHS3 compliant and REACH unaffected. Selection should be based on procurement lead time, inventory availability, and regulatory requirements for the end application.

Frequently Asked Questions (FAQ)

Q: Can BK/GMA-5-R be used as a direct replacement for GMA-5-R?

A: Yes. Both parts are manufactured by Eaton - Electronics Division and share identical electrical ratings (5A, 125V AC), fuse type (cartridge, glass), response time (fast blow), physical dimensions (5mm x 20mm), and breaking capacity (10kA). They are direct equivalents.

Q: Are Littelfuse 235 series fuses (0235005.HXP and 0235005.MXP) compatible with GMA-5-R applications?

A: Yes. The 235 series parts meet all critical electrical and mechanical parameters: 5A current rating, 125V AC voltage rating, fast-blow response, 5mm x 20mm form factor, and 10kA breaking capacity. Physical dimensions are identical. Both parts hold CSA, PSE, and UL certifications matching the GMA series. The 235 series additionally holds CE and KC approvals.

Q: What is the difference between 0235005.HXP and 0235005.MXP?

A: Both parts are electrically and mechanically identical. They share the same current rating (5A), voltage rating (125V AC), fuse type (cartridge, glass), response time (fast blow), physical dimensions (5mm x 20mm), breaking capacity (10kA), melting I²t (27.41), DC cold resistance (0.0184 Ohms), operating temperature range (-55°C to 125°C), and regulatory approvals (CE, CSA, KC, PSE, UL). Selection between them is based on inventory availability and procurement requirements.

Q: Do all substitute parts require the same holder as GMA-5-R?

A: Yes. All parts are cartridge fuses with 5mm x 20mm form factor and require a compatible fuse holder. The physical dimensions are identical across all four parts (0.205" diameter x 0.787" length).

Q: Are there any compliance differences between the GMA series and Littelfuse 235 series?

A: The GMA series holds CSA, PSE, and UL certifications. The Littelfuse 235 series holds CE, CSA, KC, PSE, and UL certifications. Both meet the core regulatory requirements. The 235 series carries additional regional approvals (CE for Europe, KC for Korea).

Q: What is the significance of the melting I²t and DC cold resistance differences?

A: Melting I²t and DC cold resistance are secondary electrical characteristics. GMA series parts show melting I²t of 29 and DC cold resistance of 0.021 Ohms. Littelfuse 235 series parts show melting I²t of 27.41 and DC cold resistance of 0.0184 Ohms. These variations remain within acceptable tolerances for the specified 5A, 125V AC/DC rating and do not affect substitution eligibility or circuit protection performance at the rated current and voltage.

Q: Which part has the best inventory availability?

A: 0235005.HXP (Littelfuse 235 series) carries the highest inventory at 20006 pcs. BK/GMA-5-R (Eaton) carries 2483 pcs. 0235005.MXP (Littelfuse 235 series) carries 3306 pcs. GMA-5-R (Eaton) carries 1032 pcs.