GMC-400-R Equivalent & Substitute Parts

Part Overview

The GMC-400-R is a 400 mA, 250 V AC/DC glass cartridge fuse manufactured by Eaton - Electronics Division. This fuse operates with medium blow response time and requires a holder for installation. The part is Active status and widely used in electronic protection circuits requiring 5mm x 20mm form factor fuses. Substitute parts are identified when equivalent electrical and mechanical parameters are available from alternative manufacturers or packaging variants, ensuring circuit protection requirements remain unchanged.

Substiute Parts

GMC-400-R

Eaton - Electronics DivisionIn Stock: 809GMC-400-R Datasheet

Current PartRFQ

BK/GMC-400-R

Eaton - Electronics DivisionIn Stock: 1857BK/GMC-400-R Datasheet

DirectRFQ

0034.2512

SCHURTER Inc.In Stock: 18950034.2512 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the GMC-400-R are identified based on strict electrical and mechanical compatibility. The following parameters must match or be equivalent:

Critical Matching Parameters:

• Current Rating: 400 mA (exact match required)
• Voltage Rating - AC: 250 V (exact match required)
• Fuse Type: Cartridge, Glass (exact match required)
• Package / Case: 5mm x 20mm (exact match required)
• Response Time: Medium Blow (exact match required)
• Mounting Type: Requires Holder (exact match required)

Allowable Variations:

• Manufacturer: Different manufacturers permitted if all critical parameters match
• DC Voltage Rating: May vary or be absent if AC rating is primary specification
• Breaking Capacity: May exceed rated value
• Melting I²t: May vary within acceptable thermal characteristics
• Approval Agencies: May differ based on regional certifications
• Operating Temperature Range: May be specified or unspecified

Substitutes are grouped into two categories: Direct Manufacturer Variants (same manufacturer, different packaging designation) and Parametric Equivalents (different manufacturer, matching electrical specifications).

Parameter Comparison

Engineering Selection Recommendations

BK/GMC-400-R (Eaton - Electronics Division): This part is a direct manufacturer variant of the GMC-400-R. All electrical and mechanical parameters are identical. This substitute is suitable for applications where Eaton fuses are specified and interchangeability within the same manufacturer series is required. Both parts carry identical certifications (CSA, KC-MARK, UL) and RoHS3 compliance. Inventory availability is higher for BK/GMC-400-R (1825 Pcs vs. 737 Pcs).

0034.2512 (SCHURTER Inc.): This part is a parametric equivalent from a different manufacturer. All critical electrical parameters match: 400 mA current rating, 250 V AC voltage rating, medium blow response, and 5mm x 20mm package. The SCHURTER part provides additional DC voltage rating (125 V) and higher breaking capacity (80A vs. 35A), making it suitable for applications requiring enhanced DC performance. However, approval agencies are not specified for this part. Selection of this substitute should be based on application requirements for DC voltage capability and breaking capacity. RoHS3 compliance is confirmed.

Frequently Asked Questions (FAQ)

Q: Can BK/GMC-400-R be used as a direct replacement for GMC-400-R?

A: Yes. BK/GMC-400-R is a direct manufacturer variant from Eaton with identical electrical specifications (400 mA, 250 V AC), fuse type (cartridge glass), package (5mm x 20mm), response time (medium blow), and certifications. Physical dimensions and mounting requirements are identical.

Q: What are the key differences between GMC-400-R and 0034.2512?

A: Both parts share identical current rating (400 mA), AC voltage rating (250 V), fuse type (cartridge glass), package (5mm x 20mm), and response time (medium blow). The SCHURTER 0034.2512 differs in: manufacturer (SCHURTER vs. Eaton), DC voltage rating (125 V specified vs. not specified), breaking capacity (80A vs. 35A), melting I²t (0.632 vs. 0.18), and approval agencies (not specified vs. CSA, KC-MARK, UL).

Q: Is the 0034.2512 suitable for DC applications?

A: The 0034.2512 specifies a 125 V DC rating, whereas the GMC-400-R does not specify a DC rating. If your application requires DC voltage protection, the 0034.2512 provides explicit DC capability. However, approval agency certifications differ between the two parts.

Q: Do all three parts require the same holder?

A: Yes. All three parts use the 5mm x 20mm cartridge form factor and require a holder for installation. Physical dimensions are identical (0.205" Dia x 0.787" L).

Q: Are all parts RoHS3 compliant?

A: Yes. GMC-400-R, BK/GMC-400-R, and 0034.2512 are all ROHS3 Compliant.

Q: Which part should I select if approval agencies are critical?

A: GMC-400-R and BK/GMC-400-R both carry CSA, KC-MARK, and UL certifications. The 0034.2512 does not specify approval agencies. If regulatory certifications are required, select either the GMC-400-R or BK/GMC-400-R.

Q: What is the difference between melting I²t values?

A: Melting I²t is a thermal characteristic indicating the energy required to melt the fuse element. GMC-400-R and BK/GMC-400-R both have 0.18 I²t, while 0034.2512 has 0.632 I²t. Higher I²t values indicate slower thermal response. All three parts are specified as medium blow response time.