GFA-1/50 Equivalent & Substitute Parts Reference

Part Overview

The GFA-1/50 is a board mount fuse manufactured by Eaton - Electronics Division, designed for through-hole installation in electronic circuits requiring overcurrent protection. This component operates at 20 mA current rating with 125 V AC voltage rating and features fast-blow response characteristics. The fuse employs a cartridge, non-standard (axial) package style with a breaking capacity of 50 A at rated voltage.

The GFA-1/50 maintains active product status with 897 pieces currently in stock. Identifying equivalent substitute parts is necessary to ensure design flexibility, support supply chain continuity, and accommodate varying compliance requirements across manufacturing batches and procurement channels.

Substiute Parts

GFA-1/50

Eaton - Electronics DivisionIn Stock: 932GFA-1/50 Datasheet

Current PartRFQ

BK/GFA-1/50

Eaton - Electronics DivisionIn Stock: 970BK/GFA-1/50 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the GFA-1/50 is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Current Rating: 20 mA (exact match required)
• Voltage Rating - AC: 125 V (exact match required)
• Response Time: Fast Blow (exact match required)
• Breaking Capacity @ Rated Voltage: 50 A (exact match required)

Mechanical Parameters:

• Mounting Type: Through Hole (exact match required)
• Fuse Type: Board Mount (Cartridge Style Excluded) (exact match required)
• Package / Case: Cartridge, Non-Standard (Axial) (exact match required)
• Size / Dimension: 0.146" Dia x 0.299" L (3.70mm x 7.60mm) (exact match required)

Compliance Parameters:

• Manufacturer: Eaton - Electronics Division (same manufacturer source)
• Series: GFA (same product series)
• Moisture Sensitivity Level: 1 (Unlimited) (exact match required)

Substitute parts must satisfy all electrical, mechanical, and dimensional requirements without deviation. Compliance certifications and RoHS status may vary between substitute options while maintaining functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

The BK/GFA-1/50 is a parametric equivalent to the GFA-1/50, meeting all critical electrical and mechanical specifications for direct substitution in board mount fuse applications requiring 20 mA at 125 V AC with fast-blow response.

Selection Basis:

Both parts maintain active product status and are manufactured by Eaton - Electronics Division within the GFA series. All functional parameters—current rating, voltage rating, response time, breaking capacity, mounting configuration, and physical dimensions—are identical between the two part numbers.

Compliance Considerations:

The primary difference between GFA-1/50 and BK/GFA-1/50 lies in regulatory certifications and environmental compliance:

• GFA-1/50 carries CSA and UR approvals with RoHS non-compliant status
• BK/GFA-1/50 carries CSA and UL approvals with RoHS Compliant status

Selection between these equivalents should be based on specific application requirements regarding regulatory certification (UR versus UL) and RoHS compliance mandates. Both parts are suitable for identical electrical and mechanical applications.

Frequently Asked Questions (FAQ)

Q: Can BK/GFA-1/50 be used as a direct replacement for GFA-1/50 in existing designs?

A: Yes. The BK/GFA-1/50 is a parametric equivalent with identical electrical ratings (20 mA, 125 V AC), response time (fast-blow), breaking capacity (50 A), mounting type (through-hole), and physical dimensions (0.146" Dia x 0.299" L). Direct substitution is supported for applications where the regulatory certifications and RoHS compliance status of BK/GFA-1/50 are acceptable.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution eligibility is determined by exact equivalence in: current rating (20 mA), voltage rating (125 V AC), response time (fast-blow), breaking capacity (50 A), mounting type (through-hole), fuse type (board mount, cartridge style excluded), package style (cartridge, non-standard axial), and physical dimensions (0.146" Dia x 0.299" L / 3.70mm x 7.60mm). All parameters must match precisely.

Q: What is the difference between GFA-1/50 and BK/GFA-1/50?

A: Both parts are functionally identical in electrical and mechanical specifications. The differences are: GFA-1/50 holds CSA and UR approvals with RoHS non-compliant status; BK/GFA-1/50 holds CSA and UL approvals with RoHS Compliant status. Selection depends on regulatory certification requirements and environmental compliance mandates for the application.

Q: Are both parts currently available?

A: Yes. GFA-1/50 has 897 pieces in stock, and BK/GFA-1/50 has 872 pieces in stock, both as new original inventory.

Q: Does the axial cartridge package style affect substitution?

A: No. Both parts use identical cartridge, non-standard (axial) package configuration with matching through-hole mounting and physical dimensions. Package compatibility is confirmed.

Q: Which part should be selected for RoHS-compliant applications?

A: BK/GFA-1/50 is RoHS Compliant and should be selected for applications with RoHS compliance requirements. GFA-1/50 is RoHS non-compliant and is suitable for applications without RoHS mandates.

Q: Which part should be selected for UL-certified applications?

A: BK/GFA-1/50 carries UL approval and should be selected for applications requiring UL certification. GFA-1/50 carries UR approval and is suitable for applications with UR certification requirements.