BK1/GMA-200-R Equivalent & Substitute Parts

Part Overview

The BK1/GMA-200-R is a fast-blow glass cartridge fuse manufactured by Eaton - Electronics Division, rated for 200 mA at 250 V AC/DC. This component is designed for circuits requiring fast response protection in a 5mm x 20mm form factor with holder mounting. The part maintains active product status with 1288 units in current inventory. Substitute parts are identified to provide alternative sourcing options while maintaining electrical and mechanical compatibility within the specified parameter envelope.

Substiute Parts

BK1/GMA-200-R

Eaton - Electronics DivisionIn Stock: 1384BK1/GMA-200-R Datasheet

Current PartRFQ

0235.200HXP

Littelfuse Inc.In Stock: 14440235.200HXP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the BK1/GMA-200-R are identified based on strict electrical and mechanical parameter matching. The substitution logic requires:

Critical Matching Parameters:

• Current Rating: 200 mA (exact match required)
• Voltage Rating (AC): 250 V (exact match required)
• Package / Case: 5mm x 20mm (exact match required)
• Fuse Type: Cartridge, Glass (exact match required)
• Response Time: Fast Blow (exact match required)
• Mounting Type: Requires Holder (exact match required)

Secondary Compatibility Parameters:

• Breaking Capacity @ Rated Voltage: 35 A (must be equal or greater)
• RoHS Status: ROHS3 Compliant (regulatory requirement)

The identified substitute 0235.200HXP from Littelfuse Inc. satisfies all critical matching parameters and secondary compatibility requirements, enabling direct functional replacement in applications currently using the BK1/GMA-200-R.

Parameter Comparison

Engineering Selection Recommendations

The 0235.200HXP from Littelfuse Inc. is a direct functional equivalent to the BK1/GMA-200-R. Both components share identical electrical ratings (200 mA, 250 V AC/DC), mechanical form factor (5mm x 20mm), and protection characteristics (fast-blow response). Both maintain ROHS3 compliance and share common regulatory approvals (CSA, UL).

The substitute part carries additional regulatory approvals (CE, KC) and an extended operating temperature range (-55°C ~ 125°C), providing broader application flexibility. The melting I²t value of 0.00867 in the substitute is higher than the 0.001 specification of the main part, and the DC cold resistance is 3.15 Ohms versus 2.5 Ohms. These parameter variations remain within acceptable tolerance for fast-blow cartridge fuse applications at the specified current and voltage ratings.

Selection between these parts should be based on inventory availability, supply chain requirements, and specific regulatory approval needs for the target application.

Frequently Asked Questions (FAQ)

Q: Can the 0235.200HXP directly replace the BK1/GMA-200-R in existing circuits?

A: Yes. Both components share identical current rating (200 mA), voltage rating (250 V AC/DC), package dimensions (5mm x 20mm), fuse type (cartridge glass), response time (fast blow), and breaking capacity (35 A). Physical and electrical compatibility is confirmed.

Q: Are there differences in the melting I²t and DC cold resistance values?

A: Yes. The 0235.200HXP has a melting I²t of 0.00867 compared to 0.001 for the BK1/GMA-200-R, and DC cold resistance of 3.15 Ohms versus 2.5 Ohms. These variations are characteristic differences between manufacturers' designs for the same current and voltage rating and do not prevent functional substitution.

Q: What regulatory approvals apply to each part?

A: The BK1/GMA-200-R carries CSA, PSE, and UL approvals. The 0235.200HXP carries CE, CSA, KC, and UL approvals. Both share CSA and UL certifications. The substitute offers additional CE and KC approvals for broader geographic compliance.

Q: Does the operating temperature range differ between these parts?

A: Yes. The BK1/GMA-200-R does not specify an operating temperature range. The 0235.200HXP specifies -55°C ~ 125°C. This extended range in the substitute provides additional flexibility for temperature-sensitive applications.

Q: Are both parts currently in stock?

A: Yes. The BK1/GMA-200-R has 1288 units in inventory. The 0235.200HXP has 1434 units in inventory. Both maintain active product status.

Q: What is the significance of the 5mm x 20mm package specification?

A: The 5mm x 20mm dimension is the physical form factor for cartridge fuses requiring a holder. This specification is critical for mechanical compatibility. Both parts match this requirement exactly and are interchangeable in standard 5mm x 20mm fuse holders.