Request Quote
(Ships tomorrow)
GMC-1A Equivalent & Substitute Parts
Part Overview
The GMC-1A is a 1 A 250 V AC DC glass cartridge fuse manufactured by Eaton - Electronics Division. This fuse is designed for use in 5mm x 20mm fuse holders and provides circuit protection in applications requiring medium blow response characteristics. The part is active in production with 820 pieces currently in stock.
Equivalent and substitute parts are identified based on matching electrical ratings, mechanical dimensions, fuse type, response time, and approval certifications. Alternative sources and variants are necessary to ensure supply continuity, accommodate regional compliance requirements, and support design flexibility across different manufacturing environments.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Current Rating | 1 A |
| Voltage Rating - AC | 250 V |
| Fuse Type | Cartridge, Glass |
| Package / Case | 5mm x 20mm |
| Response Time | Medium Blow |
| Mounting Type | Requires Holder |
| Size / Dimension | 0.205" Dia x 0.787" L (5.20mm x 20.00mm) |
Substitute Part Grouping Explanation
Substitution eligibility for the GMC-1A is determined by the following critical parameters:
Primary Matching Criteria:
- Current Rating: 1 A
- Voltage Rating - AC: 250 V
- Fuse Type: Cartridge, Glass
- Package / Case: 5mm x 20mm
- Response Time: Medium Blow
- Mounting Type: Requires Holder
All substitute parts listed maintain these core electrical and mechanical specifications. Variations in secondary parameters such as breaking capacity, melting I²t, DC cold resistance, and approval agencies are noted but do not disqualify substitution when primary criteria are met. Parts are grouped by manufacturer to facilitate sourcing decisions based on supply availability and regional compliance certifications.
Parameter Comparison
| Part Number | Manufacturer | Current Rating (A) | Voltage AC (V) | Voltage DC (V) | Response Time | Package | Breaking Capacity (A) | Melting I²t | DC Cold Resistance (Ohms) | Inventory (Pcs) |
|---|---|---|---|---|---|---|---|---|---|---|
| GMC-1A | Eaton | 1 | 250 | Not specified | Medium Blow | 5x20mm | 35 | 1.8 | 0.156 | 820 |
| GMC-1-R | Eaton | 1 | 250 | Not specified | Medium Blow | 5x20mm | 35 | 1.8 | 0.156 | 845 |
| BK/GMC-1-R | Eaton | 1 | 250 | Not specified | Medium Blow | 5x20mm | 35 | 1.8 | 0.156 | 1504 |
| BK1/GMC-1-R | Eaton | 1 | 250 | Not specified | Medium Blow | 5x20mm | 35 | 1.8 | 0.156 | 849 |
| 0034.2516 | SCHURTER Inc. | 1 | 250 | 125 | Medium Blow | 5x20mm | 80 | 3.6 | Not specified | 4570 |
| 0232001.MXF15P | Littelfuse Inc. | 1 | 250 | Not specified | Medium Blow | 5x20mm | 100 | 1.373 | 0.0923 | 1007 |
| 0232001.MXF34P | Littelfuse Inc. | 1 | 250 | Not specified | Medium Blow | 5x20mm | 100 | 1.373 | 0.0923 | 796 |
| 0232001.MXF5P | Littelfuse Inc. | 1 | 250 | Not specified | Medium Blow | 5x20mm | 100 | 1.373 | 0.0923 | 717 |
| 0232001.MXP | Littelfuse Inc. | 1 | 250 | Not specified | Medium Blow | 5x20mm | 100 | 1.373 | 0.0923 | 1136 |
| 0234001.MXBP | Littelfuse Inc. | 1 | 250 | Not specified | Medium Blow | 5x20mm | 100 | 1.975 | 0.175 | 819 |
| 0234001.MXP | Littelfuse Inc. | 1 | 250 | Not specified | Medium Blow | 5x20mm | 100 | 1.975 | 0.175 | 1855 |
Engineering Selection Recommendations
Eaton GMC Series (GMC-1-R, BK/GMC-1-R, BK1/GMC-1-R): These parts are direct equivalents to the GMC-1A, maintaining identical electrical and mechanical specifications. All variants are active products with CSA, KC-MARK, and UL certifications. Selection among these variants depends on packaging requirements and regional compliance needs. BK/GMC-1-R offers the highest inventory availability at 1504 pieces.
SCHURTER 0034.2516: This part matches all primary substitution criteria and adds DC voltage rating capability (125 V DC). It features higher breaking capacity (80 A versus 35 A) and elevated melting I²t (3.6 versus 1.8). Operating temperature range is specified as -40°C to 85°C. This part is suitable for applications requiring DC voltage protection in addition to AC protection. Inventory availability is highest among all listed parts at 4570 pieces.
Littelfuse 232 Series (0232001.MXF15P, 0232001.MXF34P, 0232001.MXF5P, 0232001.MXP): These parts maintain core electrical ratings and mechanical dimensions. All feature higher breaking capacity (100 A) and lower DC cold resistance (0.0923 Ohms) compared to the GMC-1A. Operating temperature range extends to -55°C to 125°C. Certifications include CE, KC, and PSE. These variants differ in response time characteristics designated by suffix codes (MXF15P, MXF34P, MXF5P, MXP).
Littelfuse 234 Series (0234001.MXBP, 0234001.MXP): These parts provide equivalent electrical and mechanical specifications with higher breaking capacity (100 A) and elevated melting I²t (1.975 versus 1.8). DC cold resistance is 0.175 Ohms. Operating temperature range is -55°C to 125°C. Certifications include CE, CSA, K-MARK, PSE, and UL. The 0234001.MXP variant has the highest inventory among Littelfuse 234 series at 1855 pieces.
Frequently Asked Questions (FAQ)
Q: Can GMC-1-R, BK/GMC-1-R, and BK1/GMC-1-R be used interchangeably with GMC-1A?
A: Yes. These parts are parametric equivalents with identical current rating (1 A), AC voltage rating (250 V), fuse type (cartridge glass), package dimensions (5mm x 20mm), and response time (medium blow). All are manufactured by Eaton and maintain the same mechanical and electrical performance characteristics.
Q: What is the difference between Littelfuse 232 and 234 series fuses?
A: Both series maintain the required 1 A, 250 V AC, 5mm x 20mm specifications. The primary difference is melting I²t: 232 series has 1.373 while 234 series has 1.975. Additionally, 234 series has higher DC cold resistance (0.175 Ohms versus 0.0923 Ohms) and broader certification coverage including UL and CSA.
Q: Does the SCHURTER 0034.2516 provide additional protection compared to GMC-1A?
A: The SCHURTER 0034.2516 maintains equivalent AC protection (1 A, 250 V) but adds DC voltage rating (125 V). It features higher breaking capacity (80 A versus 35 A) and higher melting I²t (3.6 versus 1.8). These characteristics do not alter the primary protection function but extend application scope to DC circuits.
Q: Are all substitute parts RoHS3 compliant?
A: Yes. All listed substitute parts carry RoHS3 compliance status as specified in the provided data.
Q: What certifications should I verify for regional compliance?
A: Eaton GMC variants carry CSA, KC-MARK, and UL certifications. Littelfuse 232 series carries CE, KC, and PSE certifications. Littelfuse 234 series carries CE, CSA, K-MARK, PSE, and UL certifications. SCHURTER 0034.2516 does not list specific approval agencies. Select based on your target market requirements.
Q: Can I substitute a fuse with higher breaking capacity?
A: Substitution is based on matching primary electrical and mechanical parameters: current rating, voltage rating, fuse type, package dimensions, and response time. Higher breaking capacity does not disqualify substitution when these core parameters are identical. Verify application requirements before selection.
Q: What is the significance of DC cold resistance values?
A: DC cold resistance is provided for reference but does not affect substitution eligibility when primary electrical ratings match. Variations in this parameter (ranging from 0.0923 to 0.175 Ohms across listed parts) reflect manufacturing differences between suppliers but maintain functional equivalence for the specified 1 A, 250 V AC application.
Alternative Parts
SJ6012L2TP
Littelfuse Inc.
6 Alternative Parts
JMK107BBJ476MA-RE
Taiyo Yuden
10 Alternative Parts
GMK107BBJ475MA-T
Taiyo Yuden
5 Alternative Parts
SJ6020N2ARP
Littelfuse Inc.
3 Alternative Parts
SJ6025R2ATP
Littelfuse Inc.
4 Alternative Parts
2474-05L
API Delevan Inc.
1 Alternative Parts
4590R-684K
API Delevan Inc.
1 Alternative Parts
CM6560R-334
API Delevan Inc.
1 Alternative Parts
CM6460-104
API Delevan Inc.
1 Alternative Parts
5526-12
API Delevan Inc.
1 Alternative Parts