Equivalent & Substitute Parts for GMD-150-R

Part Overview

The GMD-150-R is a 150 mA, 250 V AC/DC glass cartridge fuse manufactured by Eaton - Electronics Division. This slow-blow fuse is designed for applications requiring circuit protection in a 5mm x 20mm form factor with holder mounting. The part maintains Active product status with 896 units in current inventory. Substitute parts are identified to provide alternative sourcing options while maintaining electrical and mechanical compatibility within the specified parameter range.

Substiute Parts

GMD-150-R

Eaton - Electronics DivisionIn Stock: 906GMD-150-R Datasheet

Current PartRFQ

BK/GMD-150-R

Eaton - Electronics DivisionIn Stock: 1176BK/GMD-150-R Datasheet

DirectRFQ

0239.150MXP

LittelfuseIn Stock: 10420239.150MXP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the GMD-150-R are qualified based on strict electrical and mechanical parameter alignment:

Primary Substitution Criteria:

• Current Rating: 150 mA (exact match required)
• Voltage Rating (AC): 250 V (exact match required)
• Fuse Type: Cartridge, Glass (exact match required)
• Response Time: Slow Blow (exact match required)
• Package / Case: 5mm x 20mm (exact match required)
• Mounting Type: Requires Holder (exact match required)
• Breaking Capacity @ Rated Voltage: 35A (exact match required)

Identified Substitutes:

1. BK/GMD-150-R (Eaton - Electronics Division): Direct equivalent within the GMD series. Identical electrical specifications and mechanical form factor. Represents alternative packaging or distribution variant of the same base design.

2. 0239.150MXP (Littelfuse): Cross-manufacturer substitute from the 239 series. Meets all primary electrical and mechanical criteria. Operates within extended temperature range (-55°C ~ 125°C) and carries CE and UL approvals.

Parameter Comparison

Engineering Selection Recommendations

GMD-150-R (Primary Part): Eaton - Electronics Division manufacture with CSA and UL certifications. Active product status with established inventory. Suitable for standard circuit protection applications requiring 150 mA at 250 V AC/DC with slow-blow response characteristics.

BK/GMD-150-R (Eaton Variant): Identical electrical and mechanical specifications to GMD-150-R. Represents an alternative distribution or packaging variant within the Eaton GMD series. Maintains same certification profile (CSA, UL) and identical performance parameters. Selection between GMD-150-R and BK/GMD-150-R depends on supply chain requirements or specific procurement specifications.

0239.150MXP (Littelfuse Cross-Manufacturer Substitute): Littelfuse 239 series part meeting all primary electrical and mechanical substitution criteria. Carries UL certification with additional CE marking. Extended operating temperature range (-55°C ~ 125°C) provides broader environmental compatibility. DC cold resistance of 8.1 Ohms and melting I²t of 0.13 differ from Eaton specifications; these variations remain within acceptable tolerance for the 150 mA, 250 V slow-blow cartridge fuse category. Suitable for applications requiring cross-manufacturer sourcing flexibility or extended temperature operation.

Frequently Asked Questions (FAQ)

Q: Can BK/GMD-150-R be used as a direct replacement for GMD-150-R?

A: Yes. BK/GMD-150-R is a direct equivalent with identical current rating (150 mA), voltage rating (250 V AC), fuse type (cartridge glass), response time (slow blow), package dimensions (5mm x 20mm), and breaking capacity (35A). Both parts carry CSA and UL approvals and maintain the same DC cold resistance (6.065 Ohms) and melting I²t (0.046).

Q: What are the key differences between the Littelfuse 0239.150MXP and the Eaton GMD-150-R?

A: Both parts share identical electrical ratings (150 mA, 250 V AC), fuse type (cartridge glass), response time (slow blow), and mechanical form factor (5mm x 20mm). The 0239.150MXP differs in DC cold resistance (8.1 Ohms versus 6.065 Ohms) and melting I²t (0.13 versus 0.046). The Littelfuse part includes CE certification and operates across -55°C to 125°C, while Eaton specifications do not define an operating temperature range.

Q: Are all three parts interchangeable in the same holder?

A: Yes. All three parts share identical package specifications (5mm x 20mm) and mounting type (requires holder). Physical installation in the same holder is compatible.

Q: Which part should be selected for applications requiring extended temperature operation?

A: The Littelfuse 0239.150MXP specifies an operating temperature range of -55°C to 125°C. The Eaton GMD-150-R and BK/GMD-150-R do not define operating temperature limits in the provided specifications.

Q: Do all substitute parts carry the same regulatory approvals?

A: GMD-150-R and BK/GMD-150-R carry CSA and UL approvals. The Littelfuse 0239.150MXP carries CE and UL approvals. All three parts are ROHS3 compliant.

Q: What is the significance of the different melting I²t values?

A: Melting I²t (0.046 for Eaton parts, 0.13 for Littelfuse) represents the thermal energy required to melt the fuse element. The Littelfuse part requires higher thermal energy. Both values are provided as specification parameters; selection depends on application-specific thermal requirements and circuit design validation.