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BK/GDC-32MA Equivalent & Substitute Parts
Part Overview
The BK/GDC-32MA is a 32 mA, 250 V AC/DC slow-blow glass fuse cartridge in 5mm x 20mm package format manufactured by Eaton - Electronics Division. This component is classified as Active product status and requires a fuse holder for installation. Alternative equivalent parts are necessary when the primary part is unavailable, when supply chain optimization is required, or when design flexibility across approved manufacturers is needed while maintaining identical electrical and mechanical specifications.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Current Rating | 32 mA |
| Voltage Rating (AC) | 250 V |
| Fuse Type | Cartridge, Glass |
| Response Time | Slow Blow |
| Package / Case | 5mm x 20mm |
| Breaking Capacity @ Rated Voltage | 35A |
| Mounting Type | Requires Holder |
| Product Status | Active |
Substitute Part Grouping Explanation
Substitution eligibility for the BK/GDC-32MA is determined by strict equivalence across the following critical parameters:
Mandatory Matching Parameters:
- Current Rating: 32 mA
- Voltage Rating (AC): 250 V
- Fuse Type: Cartridge, Glass
- Response Time: Slow Blow
- Package / Case: 5mm x 20mm
- Breaking Capacity @ Rated Voltage: 35A
- Mounting Type: Requires Holder
All identified substitute parts match these parameters exactly. Substitutes are grouped into two categories:
Category 1 - Eaton Direct Equivalents:
- BK/S506-32-R (Series S506)
- BK1/S506-32-R (Series S506)
- GDC-32MA (Series GDC, same manufacturer as main part)
Category 2 - Cross-Manufacturer Equivalents:
- 0218.032TXP (Littelfuse Inc., Series 218)
- 0218.032MXP (Littelfuse Inc., Series 218)
All parts maintain identical electrical performance and physical dimensions required for direct substitution in the 5mm x 20mm fuse holder application.
Parameter Comparison
| Part Number | Manufacturer | Series | Current Rating | Voltage (AC) | Response Time | Package | Breaking Capacity | Melting I²t | DC Cold Resistance | RoHS Status |
|---|---|---|---|---|---|---|---|---|---|---|
| BK/GDC-32MA | Eaton | GDC | 32 mA | 250 V | Slow Blow | 5x20mm | 35A | 0.0051 | 21 Ohms | RoHS Compliant |
| BK/S506-32-R | Eaton | S506 | 32 mA | 250 V | Slow Blow | 5x20mm | 35A | 0.0051 | 21 Ohms | ROHS3 Compliant |
| BK1/S506-32-R | Eaton | S506 | 32 mA | 250 V | Slow Blow | 5x20mm | 35A | 0.0051 | 21 Ohms | ROHS3 Compliant |
| 0218.032TXP | Littelfuse Inc. | 218 | 32 mA | 250 V | Slow Blow | 5x20mm | 35A | 0.011 | 48.258 Ohms | ROHS3 Compliant |
| 0218.032MXP | Littelfuse Inc. | 218 | 32 mA | 250 V | Slow Blow | 5x20mm | 35A | 0.011 | 48.258 Ohms | ROHS3 Compliant |
Engineering Selection Recommendations
Eaton GDC Series (BK/GDC-32MA, GDC-32MA): Both parts are manufactured by Eaton - Electronics Division and share identical electrical specifications. Selection between these two GDC variants depends on availability and supply chain requirements. Both hold Active product status.
Eaton S506 Series (BK/S506-32-R, BK1/S506-32-R): These Eaton S506 series fuses provide direct electrical equivalence with upgraded ROHS3 compliance status compared to the GDC series. Both variants maintain identical performance parameters and are suitable for direct substitution. The S506 series offers broader international approval certifications including BSI, CCC, IMQ, SEMKO, UL, and VDE.
Littelfuse 218 Series (0218.032TXP, 0218.032MXP): Both Littelfuse parts deliver equivalent electrical performance across all critical parameters. These cross-manufacturer alternatives provide ROHS3 compliance and extended operating temperature range (-55°C to 125°C). Littelfuse parts carry comprehensive international certifications including CCC, CE, CSA, SEMKO, UL, and VDE. The 0218.032TXP variant includes KC certification in addition to standard approvals.
Selection Basis:
- All substitute parts are Active status products
- All parts meet or exceed RoHS compliance requirements
- All parts maintain identical 5mm x 20mm physical dimensions
- All parts support identical fuse holder mounting requirements
- Cross-manufacturer substitution is supported by matching electrical and mechanical parameters
Frequently Asked Questions (FAQ)
Q: Can BK/GDC-32MA be directly replaced with BK/S506-32-R or BK1/S506-32-R?
A: Yes. Both Eaton S506 series parts are direct electrical and mechanical equivalents. They maintain identical current rating (32 mA), voltage rating (250 V AC), response time (Slow Blow), package dimensions (5mm x 20mm), and breaking capacity (35A). The S506 variants offer upgraded ROHS3 compliance.
Q: Are Littelfuse 0218.032TXP and 0218.032MXP compatible with the BK/GDC-32MA application?
A: Yes. Both Littelfuse parts match all critical electrical and mechanical parameters: 32 mA current rating, 250 V AC voltage rating, Slow Blow response, 5mm x 20mm package, and 35A breaking capacity. These parts are suitable for direct substitution in any 5mm x 20mm fuse holder application.
Q: What are the differences between Littelfuse 0218.032TXP and 0218.032MXP?
A: Both parts are electrically and mechanically identical. The primary difference is certification scope: 0218.032TXP includes KC certification while 0218.032MXP does not. Both carry CCC, CE, CSA, SEMKO, UL, and VDE approvals.
Q: Do all substitute parts fit the same fuse holder as BK/GDC-32MA?
A: Yes. All substitute parts share the identical 5mm x 20mm package dimensions and Requires Holder mounting type. Physical compatibility is guaranteed across all listed alternatives.
Q: What is the difference between GDC-32MA and BK/GDC-32MA?
A: Both are Eaton GDC series 32 mA fuses with identical electrical specifications. The designation difference reflects internal Eaton part numbering conventions. Both are Active status products suitable for direct substitution.
Q: Are there operating temperature differences between Eaton and Littelfuse alternatives?
A: Eaton GDC and S506 series parts do not specify operating temperature limits in the provided data. Littelfuse 218 series parts specify -55°C to 125°C operating range. For applications requiring extended temperature operation, Littelfuse alternatives provide documented thermal specifications.
Q: Can I mix different manufacturers in the same circuit?
A: Yes. All listed parts meet identical electrical and mechanical specifications for the 32 mA, 250 V AC/DC slow-blow cartridge fuse category. Mixing manufacturers within the same application is supported by parameter equivalence.
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