BK/GFA-1/8 Equivalent & Substitute Parts

Part Overview

The BK/GFA-1/8 is a 125 mA, 125 V AC/DC board mount fuse with fast blow response characteristics, designed for through-hole cartridge mounting in non-standard axial configuration. This component is classified as Active product status and is manufactured by Eaton - Electronics Division under the GFA series. The fuse provides circuit protection in applications requiring fast-acting overcurrent response with a breaking capacity of 50 A at rated voltage. Substitute parts are identified when equivalent electrical ratings, mechanical dimensions, and mounting configurations are maintained across alternative part numbers or inventory sources.

Substiute Parts

BK/GFA-1/8

Eaton - Electronics DivisionIn Stock: 886BK/GFA-1/8 Datasheet

Current PartRFQ

GFA-1/8

Eaton - Electronics DivisionIn Stock: 958GFA-1/8 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BK/GFA-1/8 is determined by strict equivalence across the following critical parameters:

• Current Rating: 125 mA (exact match required)
• Voltage Rating (AC): 125 V (exact match required)
• Response Time: Fast Blow (exact match required)
• Mounting Type: Through Hole (exact match required)
• Package / Case: Cartridge, Non-Standard (Axial) (exact match required)
• Breaking Capacity @ Rated Voltage: 50 A (exact match required)
• Size / Dimension: 0.146" Dia x 0.299" L (3.70mm x 7.60mm) (exact match required)

The substitute part GFA-1/8 maintains identical electrical and mechanical specifications to the main part number BK/GFA-1/8, confirming direct substitutability within the GFA series. Both parts are manufactured by Eaton - Electronics Division and share the same functional characteristics for circuit protection applications.

Parameter Comparison

Engineering Selection Recommendations

The GFA-1/8 substitute part is electrically and mechanically equivalent to the BK/GFA-1/8 main part across all critical functional parameters. Both components are Active product status and manufactured by Eaton - Electronics Division within the GFA series.

Compliance Considerations:

The main part BK/GFA-1/8 carries CSA and UL approval certifications and is RoHS Compliant. The substitute part GFA-1/8 carries CSA and UR approval certifications and is RoHS non-compliant. Applications requiring RoHS compliance or specific UL certification must use the BK/GFA-1/8 main part. Applications where RoHS compliance is not mandated and UR certification is acceptable may utilize the GFA-1/8 substitute part.

Both parts maintain identical electrical performance, breaking capacity, response time, and physical dimensions, ensuring functional interchangeability within the specified electrical and mechanical constraints.

Frequently Asked Questions (FAQ)

Q: Can GFA-1/8 be used as a direct replacement for BK/GFA-1/8?

A: The GFA-1/8 is electrically and mechanically equivalent to BK/GFA-1/8 across all functional parameters including current rating, voltage rating, response time, mounting type, package configuration, and breaking capacity. However, compliance differences exist: BK/GFA-1/8 is RoHS Compliant with UL certification, while GFA-1/8 is RoHS non-compliant with UR certification. Selection depends on application compliance requirements.

Q: What are the critical parameters that determine substitutability?

A: Substitutability is determined by exact equivalence in: current rating (125 mA), voltage rating (125 V AC), response time (Fast Blow), mounting type (Through Hole), fuse type (Board Mount, Cartridge Style Excluded), package configuration (Cartridge, Non-Standard Axial), breaking capacity (50 A), and physical dimensions (0.146" Dia x 0.299" L).

Q: Are the physical dimensions identical between BK/GFA-1/8 and GFA-1/8?

A: Yes. Both parts share identical physical dimensions of 0.146" Dia x 0.299" L (3.70mm x 7.60mm), confirming mechanical compatibility for through-hole board mount applications.

Q: What is the difference in approval certifications?

A: BK/GFA-1/8 carries CSA and UL approvals, while GFA-1/8 carries CSA and UR approvals. Applications requiring UL certification must use BK/GFA-1/8. Both certifications validate electrical safety performance for the specified voltage and current ratings.

Q: Does RoHS compliance affect electrical performance?

A: RoHS compliance status does not affect electrical performance or functional characteristics. The difference reflects manufacturing process and material composition standards. Applications subject to RoHS regulations must use BK/GFA-1/8. Applications without RoHS requirements may use either part.

Q: Are both parts currently available?

A: Both parts are classified as Active product status. BK/GFA-1/8 has 807 pieces in stock, and GFA-1/8 has 917 pieces in stock, indicating current availability from Eaton - Electronics Division.