GMA-100-R Equivalent & Substitute Parts

Part Overview

The GMA-100-R is a 100 mA, 250 V AC/DC fast-blow glass cartridge fuse manufactured by Eaton - Electronics Division. This fuse is designed for applications requiring overcurrent protection in a 5mm x 20mm form factor and requires a compatible fuse holder for installation. The part is active in production with 1029 pieces currently in stock. Equivalent and substitute parts are identified based on matching electrical characteristics, mechanical dimensions, and functional performance parameters to ensure direct interchangeability in circuit protection applications.

Substiute Parts

GMA-100-R

Eaton - Electronics DivisionIn Stock: 1098GMA-100-R Datasheet

Current PartRFQ

BK/GMA-100-R

Eaton - Electronics DivisionIn Stock: 1379BK/GMA-100-R Datasheet

DirectRFQ

BK/S500-100-R

Eaton - Electronics DivisionIn Stock: 1073BK/S500-100-R Datasheet

Parametric EquivalentRFQ

BK1/S500-100-R

Eaton - Electronics DivisionIn Stock: 1868BK1/S500-100-R Datasheet

Parametric EquivalentRFQ

0235.100HXP

Littelfuse Inc.In Stock: 10810235.100HXP Datasheet

DirectRFQ

0235.100MXP

Littelfuse Inc.In Stock: 15570235.100MXP Datasheet

DirectRFQ

0034.1506

SCHURTER Inc.In Stock: 9730034.1506 Datasheet

Parametric EquivalentRFQ

0217.100HXP

Littelfuse Inc.In Stock: 31060217.100HXP Datasheet

Parametric EquivalentRFQ

0217.100MXP

Littelfuse Inc.In Stock: 55440217.100MXP Datasheet

Parametric EquivalentRFQ

FSC-100MA

OptiFuseIn Stock: 2445FSC-100MA Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the GMA-100-R are qualified based on the following critical parameters:

Electrical Equivalence Criteria:

• Current Rating: 100 mA (exact match required)
• Voltage Rating (AC): 250 V (exact match required)
• Response Time: Fast Blow (exact match required)

Mechanical Equivalence Criteria:

• Package / Case: 5mm x 20mm (exact match required)
• Fuse Type: Cartridge, Glass (exact match required)
• Mounting Type: Requires Holder (exact match required)

Compliance Criteria:

• RoHS3 Compliant status
• Active product status

Parts meeting all electrical, mechanical, and compliance criteria are classified as direct substitutes. Variations in secondary parameters such as melting I²t, DC cold resistance, and approval agencies do not preclude substitution when primary parameters align.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts maintain active product status and meet the core electrical and mechanical requirements for direct substitution with the GMA-100-R. Selection among equivalent parts should be based on the following factors:

Manufacturer Availability: BK/GMA-100-R (Eaton) provides the closest specification match as a direct variant of the GMA series with identical electrical and mechanical parameters.

Compliance Certifications: Parts carrying CSA, UL, and PSE certifications (GMA-100-R, BK/GMA-100-R) are suitable for applications requiring these specific agency approvals. Littelfuse 0235.100HXP and 0235.100MXP carry CE, CSA, KC, and UL certifications. Littelfuse 0217.100HXP and 0217.100MXP carry CCC, CE, CSA, K-MARK, SEMKO, UL, and VDE certifications. SCHURTER 0034.1506 carries CCC, cURus, and VDE certifications.

RoHS Compliance: All parts are ROHS3 compliant except BK1/S500-100-R, which carries standard RoHS compliance.

Inventory Availability: 0217.100MXP (5500 pieces) and 0217.100HXP (3017 pieces) offer the highest stock levels among substitute options.

Frequently Asked Questions (FAQ)

Q: Can BK/GMA-100-R be used as a direct replacement for GMA-100-R?

A: Yes. BK/GMA-100-R is a direct manufacturer equivalent from Eaton - Electronics Division with identical electrical ratings (100 mA, 250 V AC), response time (Fast Blow), mechanical dimensions (5mm x 20mm), and breaking capacity (35A). Both parts are active and ROHS3 compliant.

Q: What is the difference between the Eaton S500 series (BK/S500-100-R, BK1/S500-100-R) and the GMA series?

A: The S500 series maintains the same electrical ratings and mechanical form factor as the GMA series. Primary differences include melting I²t (0.003 versus 0.0001) and DC cold resistance (3.8 Ohms versus 7.84 Ohms). Both series are fast-blow fuses rated for 100 mA at 250 V AC in 5mm x 20mm packages.

Q: Are Littelfuse 0235 and 0217 series fuses compatible with GMA-100-R applications?

A: Yes. Both Littelfuse 0235 series (0235.100HXP, 0235.100MXP) and 0217 series (0217.100HXP, 0217.100MXP) meet the core electrical and mechanical substitution criteria: 100 mA current rating, 250 V AC voltage rating, fast-blow response, and 5mm x 20mm package dimensions. Differences in melting I²t and DC cold resistance do not preclude substitution when primary parameters align.

Q: What approval agencies are represented across the substitute parts?

A: Substitute parts carry certifications from CSA, UL, PSE, CE, KC, CCC, K-MARK, SEMKO, and VDE. Selection should be based on the specific approval requirements of the target application.

Q: Does the OptiFuse FSC-100MA have a different breaking capacity than other substitutes?

A: Yes. FSC-100MA has a breaking capacity of 100A at rated voltage, compared to 35A for all other listed parts. This higher breaking capacity does not prevent substitution but represents a design difference in the OptiFuse product line.

Q: What is the significance of the 5mm x 20mm package dimension?

A: The 5mm x 20mm dimension is the mechanical form factor that determines physical fit within a fuse holder. All substitute parts share this identical dimension, ensuring mechanical interchangeability without holder modification.

Q: Can I substitute a part with different melting I²t characteristics?

A: Melting I²t variations among the listed parts (ranging from 0.0001 to 0.0045) reflect different thermal response profiles within the fast-blow category. Substitution is permissible based on matching primary electrical and mechanical parameters. Application-specific thermal requirements should be evaluated independently.