Equivalent & Substitute Parts for BK/GDA-1A Ceramic Fuse 1A 250VAC 5x20mm

Part Overview

The BK/GDA-1A is a ceramic cartridge fuse manufactured by Eaton - Electronics Division, rated for 1 A at 250 V AC/DC with fast-blow response characteristics. This component is designed for use in 5mm x 20mm fuse holders and is classified as Active product status. Equivalent and substitute parts are identified based on matching electrical ratings, mechanical dimensions, fuse type, and approval certifications to ensure direct functional interchangeability in circuit protection applications.

Substiute Parts

BK/GDA-1A

Eaton - Electronics DivisionIn Stock: 1080BK/GDA-1A Datasheet

Current PartRFQ

BK/S501-1-R

Eaton - Electronics DivisionIn Stock: 1386BK/S501-1-R Datasheet

DirectRFQ

BK1/S501-1-R

Eaton - Electronics DivisionIn Stock: 2864BK1/S501-1-R Datasheet

Parametric EquivalentRFQ

S501-1-R

Eaton - Electronics DivisionIn Stock: 1099S501-1-R Datasheet

Parametric EquivalentRFQ

5HF 1-R

Bel Fuse Inc.In Stock: 177045HF 1-R Datasheet

DirectRFQ

0216001.MXP

Littelfuse Inc.In Stock: 131840216001.MXP Datasheet

SimilarRFQ

0216001.VXP

Littelfuse Inc.In Stock: 9600216001.VXP Datasheet

SimilarRFQ

0001.1004

SCHURTER Inc.In Stock: 36470001.1004 Datasheet

Parametric EquivalentRFQ

FCD-1A

OptiFuseIn Stock: 903FCD-1A Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Primary Matching Parameters:

• Current Rating: 1 A (exact match required)
• Voltage Rating - AC: 250 V (exact match required)
• Fuse Type: Cartridge, Ceramic (exact match required)
• Package / Case: 5mm x 20mm (exact match required)
• Response Time: Fast Blow (exact match required)
• Breaking Capacity @ Rated Voltage: 1.5kA (exact match required)

All substitute parts listed meet these core electrical and mechanical specifications. Variations in secondary parameters such as melting I²t, DC cold resistance, operating temperature range, and approval agencies do not disqualify substitution when primary parameters align.

Parameter Comparison

Engineering Selection Recommendations

Eaton Series (BK/GDA-1A, BK/S501-1-R, BK1/S501-1-R, S501-1-R): These parts share identical electrical and mechanical specifications with the main part BK/GDA-1A. The S501 series variants (BK/S501-1-R, BK1/S501-1-R, S501-1-R) offer ROHS3 compliance, whereas the original GDA series is RoHS non-compliant. All Eaton variants carry approval from CCC, SEMKO, and UL certifications. Selection among Eaton variants depends on RoHS compliance requirements for the end application.

Bel Fuse 5HF 1-R: This part meets all primary electrical and mechanical parameters. It provides expanded operating temperature range (-55°C to 125°C) and broader approval certifications including CE, CSA, cURus, IMQ, PSE, and VDE. The melting I²t value of 0.65 differs from the main part, and DC cold resistance is lower at 0.15 Ohms. This part is suitable for applications requiring extended temperature performance and international certifications.

Littelfuse 0216001.MXP and 0216001.VXP: Both Littelfuse variants meet core specifications with ROHS3 compliance and extended operating temperature range (-55°C to 125°C). Approval certifications include CCC, CE, CSA, KC, PSE, SEMKO, UL, and VDE. Melting I²t is 0.18 and DC cold resistance is 0.237 Ohms. These parts are interchangeable with the main part for applications requiring broader international compliance.

SCHURTER 0001.1004: This part satisfies all primary electrical and mechanical requirements with ROHS3 compliance and operating temperature range of -55°C to 125°C. Approvals include CCC, cURus, KC, PSE/JET, and VDE. Melting I²t is 0.75. This part is suitable for applications requiring SCHURTER-specific certifications.

OptiFuse FCD-1A: This part meets all primary specifications and includes explicit 250 V DC voltage rating. It carries ROHS3 compliance and operating temperature range of -55°C to 125°C. Approval is based on IEC 60127 standard. This part is suitable for applications requiring dual AC/DC voltage rating documentation.

Frequently Asked Questions (FAQ)

Q: Can BK/S501-1-R be used as a direct replacement for BK/GDA-1A?

A: Yes. Both parts share identical current rating (1 A), voltage rating (250 V AC), fuse type (Cartridge, Ceramic), package dimensions (5mm x 20mm), response time (Fast Blow), and breaking capacity (1.5kA). The primary difference is RoHS compliance status. BK/S501-1-R is ROHS3 compliant, while BK/GDA-1A is RoHS non-compliant. Selection depends on application compliance requirements.

Q: What is the difference between Eaton S501 variants (BK/S501-1-R, BK1/S501-1-R, S501-1-R)?

A: All three Eaton S501 variants meet identical electrical and mechanical specifications. Differences exist only in part number designation and series classification. All carry ROHS3 compliance and equivalent approval certifications. They are functionally interchangeable.

Q: Can I use 5HF 1-R from Bel Fuse as a substitute?

A: Yes. The 5HF 1-R meets all primary electrical and mechanical parameters. However, it has a higher melting I²t value (0.65 versus 0.146 for BK/GDA-1A) and lower DC cold resistance (0.15 Ohms versus 0.231 Ohms). It also provides extended operating temperature range (-55°C to 125°C) and broader international certifications. Verify application requirements before selection.

Q: Are Littelfuse 0216001.MXP and 0216001.VXP interchangeable?

A: Yes. Both Littelfuse parts are identical in electrical and mechanical specifications, including current rating, voltage rating, fuse type, package dimensions, response time, breaking capacity, melting I²t (0.18), and DC cold resistance (0.237 Ohms). Both carry ROHS3 compliance and identical approval certifications. They are functionally equivalent.

Q: What certifications should I verify for international applications?

A: The main part BK/GDA-1A carries CCC, SEMKO, and UL approvals. Substitute parts offer expanded certifications: Eaton S501 variants add cULus, MITI/JET, and VDE; Bel Fuse 5HF 1-R adds CE, CSA, cURus, IMQ, and PSE; Littelfuse variants add CE, CSA, KC, and PSE; SCHURTER 0001.1004 adds KC and PSE/JET; OptiFuse FCD-1A references IEC 60127. Select based on target market requirements.

Q: Does package dimension variation affect substitution?

A: All substitute parts use the 5mm x 20mm package format, which is mechanically compatible with standard 5x20mm fuse holders. Minor dimensional variations (such as 5.10mm versus 5.20mm diameter for 5HF 1-R) remain within holder tolerance specifications and do not affect mechanical fit or electrical performance.

Q: Can I substitute based on melting I²t values alone?

A: No. Melting I²t is a secondary parameter that describes thermal response characteristics but does not determine substitution eligibility. Primary parameters—current rating, voltage rating, fuse type, package dimensions, response time, and breaking capacity—must match exactly. Melting I²t variations among qualified substitutes reflect different thermal designs but do not disqualify interchangeability when primary parameters align.