GDB-200MA Glass Cartridge Fuse 200mA 250VAC 5x20mm Equivalent & Substitute Parts

Part Overview

The GDB-200MA is a fast-blow glass cartridge fuse manufactured by Eaton - Electronics Division, rated for 200 mA at 250 V AC/DC. This fuse is designed for use in 5mm x 20mm fuse holders and requires a separate holder for installation. The part is currently active in production with 665 pieces in stock. Equivalent and substitute parts are necessary when the primary part is unavailable, when alternative certifications are required for specific markets, or when design requirements necessitate different electrical characteristics within the same functional category.

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
Mounting Type	Requires Holder
Breaking Capacity @ Rated Voltage	35A
Size / Dimension	0.205" Dia x 0.787" L (5.20mm x 20.00mm)

Substitute Part Grouping Explanation

Substitution of the GDB-200MA is determined by strict equivalence across the following critical parameters:

Mandatory Equivalence Criteria:

Current Rating: 200 mA (exact match required)
Voltage Rating (AC): 250 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: 35A (exact match required)

All substitute parts listed below meet these mandatory criteria. Variations in secondary parameters such as DC Cold Resistance, Melting I²t, and approval agencies do not disqualify a part from substitution, provided the mandatory criteria are satisfied. Differences in these secondary parameters reflect manufacturing tolerances and regional certification requirements rather than functional incompatibility.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Series	Current Rating (Amps)	Voltage Rating - AC	Response Time	Package / Case	Breaking Capacity @ Rated Voltage	DC Cold Resistance (Ohms)	Melting I²t	Approval Agency
GDB-200MA	Eaton - Electronics Division	GDB	200 mA	250 V	Fast Blow	5mm x 20mm	35A	6.8	0.016	VDE, UR
BK/GMA-200-R	Eaton - Electronics Division	GMA	200 mA	250 V	Fast Blow	5mm x 20mm	35A	2.5	0.001	CSA, PSE, UL
BK/S500-200-R	Eaton - Electronics Division	S500	200 mA	250 V	Fast Blow	5mm x 20mm	35A	6.8	0.016	BSI, CCC, CSA, cULus, IMQ, SEMKO, VDE
BK1/S500-200-R	Eaton - Electronics Division	S500	200 mA	250 V	Fast Blow	5mm x 20mm	35A	6.8	0.016	BSI, CCC, CSA, cULus, IMQ, SEMKO, VDE
GMA-200-R	Eaton - Electronics Division	GMA	200 mA	250 V	Fast Blow	5mm x 20mm	35A	2.5	0.001	CSA, PSE, UL
S500-200-R	Eaton - Electronics Division	S500	200 mA	250 V	Fast Blow	5mm x 20mm	35A	6.8	0.016	BSI, CCC, CSA, cULus, IMQ, SEMKO, VDE
0034.1509	SCHURTER Inc.	FSF 5x20	200 mA	250 V	Fast Blow	5mm x 20mm	35A	Not Specified	0.0252	CCC, cURus, VDE
0217.200HXP	Littelfuse Inc.	217	200 mA	250 V	Fast Blow	5mm x 20mm	35A	1.7	0.02	CCC, CE, CSA, K-MARK, SEMKO, UL, VDE
0217.200MXP	Littelfuse Inc.	217	200 mA	250 V	Fast Blow	5mm x 20mm	35A	1.7	0.02	CCC, CE, CSA, K-MARK, SEMKO, UL, VDE
0217.200TXP	Littelfuse Inc.	217	200 mA	250 V	Fast Blow	5mm x 20mm	35A	1.7	0.02	CCC, CE, CSA, KC, SEMKO, UR, VDE
0235.200HXP	Littelfuse Inc.	235	200 mA	250 V	Fast Blow	5mm x 20mm	35A	3.15	0.00867	CE, CSA, KC, UL

Engineering Selection Recommendations

All listed substitute parts are active products with current manufacturing status. Selection among equivalent parts should be based on the following criteria:

Certification Alignment: The GDB-200MA carries VDE and UR approvals. For applications requiring these specific certifications, BK/S500-200-R, BK1/S500-200-R, S500-200-R, 0034.1509, 0217.200HXP, 0217.200MXP, 0217.200TXP, and 0235.200HXP all include VDE certification. For applications requiring UL certification, BK/GMA-200-R, GMA-200-R, 0217.200HXP, 0217.200MXP, 0217.200TXP, and 0235.200HXP are suitable.

Manufacturer Preference: Eaton - Electronics Division substitutes (BK/GMA-200-R, BK/S500-200-R, BK1/S500-200-R, GMA-200-R, S500-200-R) maintain supply chain consistency. Littelfuse Inc. substitutes (0217.200HXP, 0217.200MXP, 0217.200TXP, 0235.200HXP) and SCHURTER Inc. substitute (0034.1509) provide alternative sourcing options.

Inventory Availability: All substitute parts maintain active stock levels ranging from 948 to 1956 pieces, ensuring supply continuity.

Regional Compliance: For markets requiring specific regional certifications (CSA, PSE, KC, K-MARK, SEMKO, CCC, cULus, cURus, IMQ, BSI), cross-reference the approval agency column to identify compliant alternatives.

Frequently Asked Questions (FAQ)

Q: Can I substitute GDB-200MA with any of the listed parts without circuit modification?

A: Yes. All listed substitute parts meet the mandatory equivalence criteria: 200 mA current rating, 250 V AC voltage rating, fast-blow response time, 5mm x 20mm package, and 35A breaking capacity. No circuit modification is required for functional substitution.

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

A: DC Cold Resistance varies among substitutes (ranging from 1.7 to 6.8 Ohms) due to manufacturing design differences between manufacturers and series. These variations fall within acceptable tolerances for the 200 mA, 250 V AC/DC fuse category and do not affect substitution compatibility.

Q: Why do Melting I²t values differ across substitute parts?

A: Melting I²t represents the thermal energy required to melt the fuse element and reflects design variations between manufacturers. All listed parts maintain fast-blow response time classification. Differences in Melting I²t do not disqualify substitution when all mandatory parameters match.

Q: Which substitute should I select if my application requires both VDE and UL certification?

A: BK/S500-200-R, BK1/S500-200-R, S500-200-R, 0217.200HXP, 0217.200MXP, 0217.200TXP, and 0235.200HXP all carry both VDE and UL certifications (or equivalent regional approvals such as cULus). Verify specific certification requirements with your application standards.

Q: Are all substitute parts RoHS compliant?

A: Most substitute parts carry ROHS3 compliance status. GMA-200-R carries RoHS Compliant status. The original GDB-200MA does not specify RoHS status in the provided data. Verify RoHS compliance requirements for your specific application.

Q: Can I use these substitutes in the same 5mm x 20mm fuse holder?

A: Yes. All substitute parts are specified for 5mm x 20mm package dimensions and require a holder for installation, identical to the GDB-200MA. Physical compatibility with existing fuse holders is confirmed.

Q: What is the operating temperature range for these fuses?

A: The GDB-200MA does not specify an operating temperature range. Littelfuse parts (0217.200HXP, 0217.200MXP, 0217.200TXP, 0235.200HXP) and SCHURTER part (0034.1509) specify -55°C to 125°C operating range. Eaton parts do not specify operating temperature in the provided data. Consult manufacturer datasheets for temperature-dependent applications.

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