GDB-32MA Equivalent & Substitute Parts

Part Overview

The GDB-32MA is a 32 mA fast-blow glass fuse cartridge rated for 250 V AC/DC operation in a 5mm x 20mm form factor, manufactured by Eaton - Electronics Division. This component is classified as Active product status and requires a compatible fuse holder for installation. Equivalent and substitute parts are identified based on matching electrical ratings, mechanical dimensions, response characteristics, and functional performance parameters to ensure direct interchangeability in circuit protection applications.

Key Parameters

Parameter	Value
Current Rating	32 mA
Voltage Rating (AC)	250 V
Fuse Type	Cartridge, Glass
Response Time	Fast Blow
Package / Case	5mm x 20mm
Breaking Capacity @ Rated Voltage	35 A
Mounting Type	Requires Holder
Size / Dimension	0.205" Dia x 0.787" L (5.20mm x 20.00mm)

Substitute Part Grouping Explanation

Substitute parts for the GDB-32MA are qualified based on the following critical parameters that determine functional interchangeability:

Primary Matching Criteria:

Current Rating: 32 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: 35 A (exact match required)
Mounting Type: Requires Holder (exact match required)

All substitute parts listed below meet these criteria and are therefore electrically and mechanically equivalent to the GDB-32MA. Substitutes are sourced from manufacturers including Eaton - Electronics Division, Littelfuse Inc., and SCHURTER Inc., all of which produce fuse cartridges meeting the specified parameters.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Series	Current Rating (mA)	Voltage Rating (V AC)	Response Time	Package / Case	Breaking Capacity (A)	Product Status	Inventory (Pcs)
GDB-32MA	Eaton - Electronics Division	GDB	32	250	Fast Blow	5mm x 20mm	35	Active	962
BK/S500-32-R	Eaton - Electronics Division	S500	32	250	Fast Blow	5mm x 20mm	35	Active	1190
BK1/S500-32-R	Eaton - Electronics Division	S500	32	250	Fast Blow	5mm x 20mm	35	Active	632
S500-32-R	Eaton - Electronics Division	S500	32	250	Fast Blow	5mm x 20mm	35	Active	765
0034.1527	SCHURTER Inc.	FSF 5x20	32	250	Fast Blow	5mm x 20mm	35	Active	7301
0217.032HXP	Littelfuse Inc.	217	32	250	Fast Blow	5mm x 20mm	35	Active	1127
0217.032MXP	Littelfuse Inc.	217	32	250	Fast Blow	5mm x 20mm	35	Active	1190

Engineering Selection Recommendations

Eaton - Electronics Division (GDB Series and S500 Series): The GDB-32MA, BK/S500-32-R, BK1/S500-32-R, and S500-32-R are all manufactured by Eaton - Electronics Division and share identical electrical and mechanical specifications. These parts are interchangeable for direct replacement. The S500 series variants (BK/S500-32-R, BK1/S500-32-R, S500-32-R) offer ROHS3 compliance and improved moisture sensitivity ratings (MSL 1 - Unlimited) compared to the GDB-32MA, making them suitable for applications requiring enhanced environmental performance.

SCHURTER Inc. (FSF 5x20 Series): The 0034.1527 is manufactured by SCHURTER Inc. and meets all electrical and mechanical parameters. This part includes multiple approval agencies (CCC, cURus, VDE) and operates across the temperature range of -55°C to 125°C. ROHS3 compliance and REACH Unaffected status are provided.

Littelfuse Inc. (217 Series): The 0217.032HXP and 0217.032MXP are manufactured by Littelfuse Inc. and provide the broadest approval agency coverage (CCC, CE, CSA, K-MARK, SEMKO, UL, VDE). Both parts operate across -55°C to 125°C and include ROHS3 compliance with MSL 1 (Unlimited) rating. These parts are suitable for applications requiring international certifications and extended temperature operation.

Compliance and Certification: All substitute parts carry Active product status. Selection should be based on specific compliance requirements for the target application. Littelfuse parts offer the most comprehensive certification portfolio. SCHURTER and Eaton S500 series parts provide solid compliance coverage for standard industrial applications.

Frequently Asked Questions (FAQ)

Q: Can the GDB-32MA be directly replaced with any of the listed substitute parts?

A: Yes. All listed substitute parts (BK/S500-32-R, BK1/S500-32-R, S500-32-R, 0034.1527, 0217.032HXP, 0217.032MXP) meet the identical electrical ratings (32 mA, 250 V AC), response time (Fast Blow), mechanical dimensions (5mm x 20mm), and breaking capacity (35 A). Direct substitution is supported without circuit modification.

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

A: Both series share identical electrical and mechanical specifications for the 32 mA, 250 V rating. The S500 series variants provide enhanced RoHS compliance (ROHS3) and improved moisture sensitivity ratings (MSL 1 - Unlimited) compared to the GDB-32MA. The S500 series is recommended for new designs and applications requiring stricter environmental compliance.

Q: Are there differences in DC Cold Resistance between substitute parts?

A: Yes. The GDB-32MA, BK/S500-32-R, BK1/S500-32-R, and S500-32-R specify 40 Ohms DC Cold Resistance. The Littelfuse parts (0217.032HXP and 0217.032MXP) specify 262.2 Ohms. The SCHURTER part (0034.1527) does not specify this parameter. These differences do not affect functional interchangeability for standard circuit protection applications.

Q: Which substitute part offers the widest operating temperature range?

A: The Littelfuse parts (0217.032HXP and 0217.032MXP) and SCHURTER part (0034.1527) all operate across -55°C to 125°C. The Eaton parts (GDB-32MA, BK/S500-32-R, BK1/S500-32-R, S500-32-R) do not specify an operating temperature range. For applications requiring extended temperature operation, Littelfuse or SCHURTER parts are specified.

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

A: Littelfuse parts carry the broadest certification: CCC, CE, CSA, K-MARK, SEMKO, UL, VDE. SCHURTER parts carry CCC, cURus, VDE. Eaton parts do not specify approval agencies. For applications requiring specific international certifications, verify the target approval agency against the substitute part's certification list.

Q: Is the 5mm x 20mm package size consistent across all substitute parts?

A: Yes. All substitute parts use the 5mm x 20mm cartridge form factor and require a compatible fuse holder. Physical installation compatibility is guaranteed across all listed parts.

Q: What is the Melting I²t parameter and does it affect substitution?

A: Melting I²t represents the thermal energy required to melt the fuse element. Values range from 4.7E-05 to 8.2E-05 across the substitute parts. Variations in this parameter reflect different fuse element designs but do not affect interchangeability for the specified 32 mA, 250 V, Fast Blow application. All parts meet the 35 A breaking capacity requirement.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message