GMA-200-R Equivalent & Substitute Parts

Part Overview

The GMA-200-R is a 200 mA fast-blow glass cartridge fuse rated for 250 V AC/DC operation in a 5mm x 20mm form factor, manufactured by Eaton - Electronics Division. This fuse is designed for applications requiring overcurrent protection in low-voltage circuits and requires a compatible fuse holder for installation. The part is active in production with 973 units in current inventory stock.

Equivalent and substitute parts are identified to provide design flexibility, accommodate supply chain variations, and support component standardization across manufacturing environments where electrical and mechanical parameters remain within acceptable tolerances.

Key Parameters

Parameter	Value
Current Rating	200 mA
Voltage Rating (AC)	250 V
Fuse Type	Cartridge, Glass
Response Time	Fast Blow
Package / Case	5mm x 20mm
Breaking Capacity @ Rated Voltage	35A
Mounting Type	Requires Holder
RoHS Status	RoHS Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the GMA-200-R is determined by strict equivalence across the following critical parameters:

Primary Equivalence Criteria:

Current Rating: 200 mA (exact match required)
Voltage Rating: 250 V AC (exact match required)
Package / Case: 5mm x 20mm (exact match required)
Fuse Type: Cartridge, Glass (exact match required)
Response Time: Fast Blow (exact match required)
Breaking Capacity @ Rated Voltage: 35A (exact match required)
Mounting Type: Requires Holder (exact match required)

Secondary Considerations:

Melting I²t values vary across manufacturers but remain within acceptable ranges for the 200 mA fast-blow classification
DC Cold Resistance values differ by manufacturer design but do not affect substitution eligibility
Approval agencies and certifications vary; parts maintain active product status
Operating temperature ranges differ; where specified, all substitutes support -55°C to 125°C operation

All substitute parts listed maintain identical electrical performance characteristics and mechanical form factors, ensuring direct interchangeability in holder-based fuse applications.

Parameter Comparison

Part Number	Manufacturer	Current Rating	Voltage Rating (AC)	Package	Response Time	Breaking Capacity	Melting I²t	DC Cold Resistance (Ohms)	RoHS Status
GMA-200-R	Eaton - Electronics Division	200 mA	250 V	5mm x 20mm	Fast Blow	35A	0.001	2.5	RoHS Compliant
BK/GMA-200-R	Eaton - Electronics Division	200 mA	250 V	5mm x 20mm	Fast Blow	35A	0.001	2.5	ROHS3 Compliant
BK/S500-200-R	Eaton - Electronics Division	200 mA	250 V	5mm x 20mm	Fast Blow	35A	0.016	6.8	ROHS3 Compliant
BK1/S500-200-R	Eaton - Electronics Division	200 mA	250 V	5mm x 20mm	Fast Blow	35A	0.016	6.8	ROHS3 Compliant
S500-200-R	Eaton - Electronics Division	200 mA	250 V	5mm x 20mm	Fast Blow	35A	0.016	6.8	ROHS3 Compliant
0235.200HXP	Littelfuse Inc.	200 mA	250 V	5mm x 20mm	Fast Blow	35A	0.00867	3.15	ROHS3 Compliant
0034.1509	SCHURTER Inc.	200 mA	250 V	5mm x 20mm	Fast Blow	35A	0.0252	Not Specified	ROHS3 Compliant
0217.200HXP	Littelfuse Inc.	200 mA	250 V	5mm x 20mm	Fast Blow	35A	0.02	1.7	ROHS3 Compliant
0217.200MXP	Littelfuse Inc.	200 mA	250 V	5mm x 20mm	Fast Blow	35A	0.02	1.7	ROHS3 Compliant
0217.200TXP	Littelfuse Inc.	200 mA	250 V	5mm x 20mm	Fast Blow	35A	0.02	1.7	ROHS3 Compliant
FSC-200MA	OptiFuse	200 mA	250 V	5mm x 20mm	Fast Blow	100A	Not Specified	0.02697	ROHS3 Compliant

Engineering Selection Recommendations

Eaton GMA Series (GMA-200-R, BK/GMA-200-R): Direct manufacturer equivalents with identical electrical characteristics. BK/GMA-200-R represents bulk packaging of the same GMA series fuse. Both maintain active product status and full compliance certifications (CSA, PSE, UL for GMA-200-R; CSA for BK/GMA-200-R). Selection between these two depends on packaging requirements and inventory availability.

Eaton S500 Series (BK/S500-200-R, BK1/S500-200-R, S500-200-R): Parametric equivalents from Eaton's S500 series with identical current, voltage, and package specifications. These parts feature expanded approval agency certifications (BSI, CCC, CSA, cULus, IMQ, SEMKO, VDE) compared to the GMA series. Melting I²t and DC Cold Resistance values differ from the GMA-200-R but remain within fast-blow fuse classification parameters. All three variants are active products with robust inventory levels.

Littelfuse 235 Series (0235.200HXP): Direct equivalent from Littelfuse with matching electrical and mechanical parameters. Supports operating temperature range of -55°C to 125°C. Certifications include CE, CSA, KC, and UL. Melting I²t of 0.00867 and DC Cold Resistance of 3.15 Ohms are within acceptable tolerance for 200 mA fast-blow operation.

Littelfuse 217 Series (0217.200HXP, 0217.200MXP, 0217.200TXP): Three variants within Littelfuse's 217 series, all with identical electrical specifications and operating temperature range (-55°C to 125°C). All three share identical Melting I²t (0.02) and DC Cold Resistance (1.7 Ohms). Certifications span CCC, CE, CSA, K-MARK, SEMKO, UL, and VDE. The 0217.200TXP variant includes additional UR certification. Selection among these three depends on specific regional certification requirements.

SCHURTER FSF 5x20 Series (0034.1509): Parametric equivalent with matching current, voltage, and package specifications. Certifications include CCC, cURus, and VDE. Melting I²t of 0.0252 represents the highest value in the substitute group but remains within fast-blow classification. Operating temperature range is -55°C to 125°C.

OptiFuse FSC Series (FSC-200MA): Parametric equivalent with identical current, voltage, and package specifications. Breaking capacity of 100A exceeds the GMA-200-R specification of 35A, providing enhanced fault protection capability. Certifications include cULus and UL 248. Operating temperature range is -55°C to 90°C, which is narrower than other substitutes. DC Cold Resistance of 0.02697 Ohms is the lowest in the substitute group.

All listed substitutes maintain active product status and are available in bulk packaging with current inventory stock levels exceeding 900 units.

Frequently Asked Questions (FAQ)

Q: Can GMA-200-R be directly replaced with BK/GMA-200-R?

A: Yes. BK/GMA-200-R is the bulk-packaged equivalent of GMA-200-R from the same manufacturer (Eaton - Electronics Division) with identical electrical and mechanical specifications. The only difference is packaging format. Both are interchangeable in holder-based fuse applications.

Q: What is the difference between Eaton GMA and S500 series substitutes?

A: Both series meet the 200 mA, 250 V, 5mm x 20mm, fast-blow specifications required for substitution. The S500 series features expanded approval agency certifications (BSI, CCC, CSA, cULus, IMQ, SEMKO, VDE) compared to the GMA series. Melting I²t and DC Cold Resistance values differ between series but do not affect interchangeability in standard applications.

Q: Are Littelfuse 217 series variants (0217.200HXP, 0217.200MXP, 0217.200TXP) interchangeable?

A: Yes. All three 217 series variants share identical electrical specifications (200 mA, 250 V, 5mm x 20mm, fast-blow) and mechanical form factors. Differences exist only in regional certification coverage. Selection should be based on specific regional compliance requirements for the end application.

Q: How does OptiFuse FSC-200MA differ from other substitutes?

A: FSC-200MA meets all primary equivalence criteria (200 mA, 250 V, 5mm x 20mm, fast-blow). The breaking capacity is 100A compared to 35A for other substitutes, providing higher fault protection capability. Operating temperature range is -55°C to 90°C, which is narrower than most alternatives. These differences do not prevent substitution but should be evaluated against specific application requirements.

Q: What does Melting I²t indicate in fuse selection?

A: Melting I²t is a thermal characteristic that influences fuse response time. All substitutes listed maintain fast-blow classification despite varying I²t values. Differences in this parameter do not affect interchangeability for standard 200 mA overcurrent protection applications.

Q: Can FSC-200MA be used in applications originally designed for GMA-200-R?

A: Yes. FSC-200MA meets all primary equivalence criteria and is mechanically and electrically compatible. The higher breaking capacity (100A vs. 35A) provides enhanced fault protection. Verify that the fuse holder and circuit design can accommodate the FSC-200MA's electrical characteristics before implementation.

Q: What is the significance of DC Cold Resistance variation among substitutes?

A: DC Cold Resistance values range from 0.02697 Ohms (FSC-200MA) to 6.8 Ohms (S500 series). These variations reflect manufacturer design differences but do not affect the fuse's primary function as an overcurrent protection device. All values remain within acceptable parameters for 200 mA fast-blow fuses.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts listed carry RoHS3 compliance status. The original GMA-200-R is RoHS Compliant. All parts meet environmental and hazardous substance restrictions applicable to electronic components.

Q: Which substitute offers the broadest regional certification coverage?

A: The Littelfuse 0217.200TXP variant includes certifications from CCC, CE, CSA, KC, SEMKO, UR, and VDE, providing the most comprehensive regional approval coverage among the listed substitutes.

Q: Can inventory levels influence substitute selection?

A: Yes. Current inventory levels vary across substitutes, ranging from 948 units (S500-200-R) to 2114 units (FSC-200MA). Availability should be considered alongside electrical specifications and certification requirements when selecting a substitute for production or repair applications.

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