Equivalent & Substitute Parts for FX0418/2

Part Overview

The FX0418/2 is a cartridge fuse holder manufactured by Bulgin, designed for panel mount applications with a 20 A current rating at 250V. This component is classified as obsolete, necessitating identification of equivalent substitute parts for ongoing system maintenance and new designs. The FX0418/2 belongs to the Touchproof® PC2 series and accommodates 3AG cartridge fuses with dimensions of 0.25" diameter by 1.26" length (6.35mm x 32mm).

Substiute Parts

FX0418/2

BulginIn Stock: 1163FX0418/2 Datasheet

Current PartRFQ

D0345RA

BulginIn Stock: 975D0345RA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the FX0418/2 is determined by the following critical parameters:

• Voltage rating of 250V
• Cartridge fuse type
• Fuse size of 0.25" diameter x 1.26" length (6.35mm x 32mm)
• Panel mount configuration
• Single circuit design
• Solder lug termination
• ROHS3 compliance

The substitute part D0345RA shares all critical mechanical and electrical parameters with the FX0418/2 except for current rating. The D0345RA is rated for 16 A, which is lower than the original 20 A specification. This difference must be evaluated against circuit requirements.

Parameter Comparison

Engineering Selection Recommendations

The D0345RA serves as a functional substitute for the obsolete FX0418/2 based on matching mechanical form factor, voltage rating, fuse type, and circuit configuration. Both components are ROHS3 compliant and manufactured by Bulgin.

The primary distinction is the current rating differential: D0345RA is rated for 16 A versus the FX0418/2 at 20 A. Selection of D0345RA is appropriate for applications where the circuit current requirement does not exceed 16 A. For circuits requiring the full 20 A capacity of the original FX0418/2, alternative substitutes with matching 20 A ratings must be evaluated.

The D0345RA is currently in active production status, ensuring availability for new designs and replacement applications.

Frequently Asked Questions (FAQ)

Q: Can D0345RA directly replace FX0418/2 in all applications?

A: D0345RA matches all mechanical and electrical parameters of FX0418/2 except current rating. Substitution is valid only for circuits with maximum current requirements of 16 A or less. Circuits requiring 20 A operation require alternative parts.

Q: Are the fuse cartridges physically interchangeable between FX0418/2 and D0345RA?

A: Yes. Both holders accommodate 3AG cartridge fuses with identical dimensions of 0.25" diameter by 1.26" length (6.35mm x 32mm).

Q: What is the significance of the product status difference?

A: FX0418/2 is obsolete and no longer manufactured. D0345RA is active production, ensuring long-term availability and supply chain reliability for new designs and field replacements.

Q: Do both parts meet the same compliance standards?

A: Yes. Both FX0418/2 and D0345RA are ROHS3 compliant and REACH unaffected, meeting equivalent environmental and regulatory requirements.

Q: What mounting orientation difference exists between these parts?

A: FX0418/2 orientation is not specified. D0345RA is specified as right angle orientation. Verify panel layout compatibility before substitution.