BK/GDC-V-400MA Equivalent & Substitute Parts

Part Overview

The BK/GDC-V-400MA is a 400 mA, 250 V AC/DC glass cartridge fuse with a 5mm x 20mm axial form factor and slow-blow response characteristics. This component is classified as obsolete, necessitating identification of active equivalent and substitute parts for ongoing design and procurement requirements. The fuse is designed for through-hole mounting applications requiring reliable overcurrent protection with controlled thermal response.

Substiute Parts

BK/GDC-V-400MA

Eaton - Electronics DivisionIn Stock: 773BK/GDC-V-400MA Datasheet

Current PartRFQ

BK/S506-V-400-R

Eaton - Electronics DivisionIn Stock: 815BK/S506-V-400-R Datasheet

DirectRFQ

BK/GMD-V-400-R

Eaton - Electronics DivisionIn Stock: 851BK/GMD-V-400-R Datasheet

Parametric EquivalentRFQ

0213.400MXEP

Littelfuse Inc.In Stock: 9930213.400MXEP Datasheet

DirectRFQ

0218.400MXEP

Littelfuse Inc.In Stock: 18610218.400MXEP Datasheet

DirectRFQ

0034.3113.PT

SCHURTER Inc.In Stock: 39330034.3113.PT Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BK/GDC-V-400MA is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Current Rating: 400 mA
• Voltage Rating (AC): 250 V
• Fuse Type: Cartridge, Glass
• Package / Case: 5mm x 20mm (Axial)
• Response Time: Slow Blow
• Mounting Type: Through Hole
• Breaking Capacity @ Rated Voltage: 35A

All substitute parts listed below satisfy these mandatory parameters. Secondary parameters such as melting I²t, DC cold resistance, and approval agencies may vary within acceptable engineering tolerances for the application category but do not disqualify substitution eligibility.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: BK/S506-V-400-R

The BK/S506-V-400-R is an active Eaton product from the same manufacturer as the obsolete BK/GDC-V-400MA. This part exhibits identical electrical parameters including melting I²t (0.872) and DC cold resistance (0.31 Ohms), ensuring direct functional equivalence. The S506 series carries expanded approval certifications (BSI, CCC, CSA, IMQ, SEMKO, UR, VDE) and is RoHS3 compliant. This part is the preferred direct replacement for the GDC series.

Secondary Recommendation: BK/GMD-V-400-R

The BK/GMD-V-400-R is an active Eaton alternative within the same manufacturer ecosystem. While melting I²t (1.2) and DC cold resistance (1.505 Ohms) differ from the original specification, this part maintains all mandatory electrical parameters. Certifications include CSA and UL. This option is suitable when BK/S506-V-400-R availability is constrained.

Cross-Manufacturer Alternatives: Littelfuse Series

The 0213.400MXEP and 0218.400MXEP from Littelfuse Inc. are active products meeting all mandatory parameters. Both parts feature extended operating temperature range (-55°C to 125°C), RoHS3 compliance, and REACH unaffected status. The 0218.400MXEP carries broader approval certifications (CCC, CE, CSA, K-MARK, SEMKO, UL, VDE) compared to 0213.400MXEP.

Cross-Manufacturer Alternative: SCHURTER

The 0034.3113.PT from SCHURTER Inc. (FST 5x20 series) satisfies all mandatory parameters with cURus certification and RoHS3 compliance. This part features the lowest melting I²t value (0.768) among all substitutes and extended operating temperature range (-55°C to 125°C).

Frequently Asked Questions (FAQ)

Q: Can BK/S506-V-400-R directly replace BK/GDC-V-400MA without circuit modification?

A: Yes. Both parts share identical current rating (400 mA), voltage rating (250 V AC), response time (slow blow), package dimensions (5mm x 20mm), and breaking capacity (35A). Electrical characteristics including melting I²t and DC cold resistance are identical, confirming direct substitution.

Q: What is the difference between BK/S506-V-400-R and BK/GMD-V-400-R?

A: Both are active Eaton products with identical mandatory parameters. The primary differences are melting I²t (0.872 vs. 1.2) and DC cold resistance (0.31 vs. 1.505 Ohms). The S506 series maintains closer alignment to the original GDC specification. Approval certifications also differ, with S506 carrying broader international recognition.

Q: Are Littelfuse 0213.400MXEP and 0218.400MXEP interchangeable?

A: Both Littelfuse parts meet all mandatory electrical parameters and share identical current, voltage, response time, and package specifications. Differences in melting I²t (1.36 vs. 1.325) and approval certifications exist. The 0218.400MXEP carries more comprehensive certifications including K-MARK and UL.

Q: Does physical package size vary among substitutes?

A: The BK/GDC-V-400MA specifies 0.218" diameter x 0.831" length. Littelfuse parts (0213.400MXEP and 0218.400MXEP) measure 0.228" diameter x 0.886" length. SCHURTER 0034.3113.PT measures 0.213" diameter x 0.886" length. These dimensional variations remain within the 5mm x 20mm axial cartridge form factor classification and are compatible with standard through-hole fuse holders designed for this package type.

Q: Which substitute offers the best compliance coverage?

A: The 0218.400MXEP from Littelfuse carries the broadest approval certifications (CCC, CE, CSA, K-MARK, SEMKO, UL, VDE) and includes RoHS3 compliance and REACH unaffected status. For applications requiring maximum international regulatory coverage, this part is optimal.

Q: Is operating temperature range a critical substitution factor?

A: The original BK/GDC-V-400MA does not specify operating temperature limits. Littelfuse (0213.400MXEP, 0218.400MXEP) and SCHURTER (0034.3113.PT) parts specify -55°C to 125°C operating range. For applications operating within standard industrial temperature ranges, this difference is not a limiting factor. Applications requiring extreme temperature operation should verify compatibility with specific environmental requirements.