Equivalent & Substitute Parts for T0340RA

Part Overview

The T0340RA is a cartridge fuse holder manufactured by Bulgin, designed for 5mm x 20mm fuses with a 6.3 A current rating at 250V. This component is classified as obsolete, indicating that direct procurement may face availability constraints. Identifying equivalent substitute parts ensures design continuity and supply chain reliability for applications requiring panel-mounted single-circuit fuse holders with these electrical specifications.

Substiute Parts

T0340RA

BulginIn Stock: 1028T0340RA Datasheet

Current PartRFQ

FX0458/1

BulginIn Stock: 1180FX0458/1 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the T0340RA is determined by the following critical parameters:

• Fuse size compatibility: 5mm x 20mm cartridge format
• Voltage rating: 250V minimum
• Mounting configuration: Panel mount with solder lug termination
• Number of circuits: Single circuit
• Regulatory compliance: ROHS3 and REACH status

The substitute part FX0458/1 maintains mechanical and electrical compatibility across these core parameters. While the current rating differs (16 A versus 6.3 A), this represents an uprated capacity within the same form factor and voltage class, permitting substitution in applications where the lower current rating of the original part is not a limiting design constraint.

Parameter Comparison

Engineering Selection Recommendations

The FX0458/1 is the designated substitute for the obsolete T0340RA. Both components share identical mechanical form factors, voltage ratings, and mounting configurations. The FX0458/1 maintains active product status, ensuring ongoing availability and supply chain support.

Selection of FX0458/1 is appropriate for applications where the circuit protection requirement does not mandate the specific 6.3 A current rating of the original part. The higher current capacity of FX0458/1 (16 A) provides additional design margin in applications with variable load conditions or future expansion requirements.

Both parts satisfy ROHS3 and REACH compliance requirements, confirming regulatory equivalence for applications subject to these standards.

Frequently Asked Questions (FAQ)

Q: Can FX0458/1 be used as a direct replacement for T0340RA?

A: Yes, FX0458/1 is mechanically and electrically compatible with T0340RA. Both components accept 5mm x 20mm cartridge fuses, operate at 250V, feature panel mount configuration with solder lug termination, and support single-circuit applications. The primary difference is the current rating capacity.

Q: What is the significance of the different current ratings?

A: T0340RA is rated for 6.3 A, while FX0458/1 is rated for 16 A. The higher rating of FX0458/1 does not prevent its use in circuits designed for 6.3 A protection; the appropriate fuse element selected for the circuit determines actual protection level. Verify that the fuse element installed matches the circuit protection requirement.

Q: Are there packaging differences between these parts?

A: T0340RA packaging is listed as standard, while FX0458/1 is supplied in bulk packaging. This distinction affects procurement and inventory management but does not impact functional compatibility.

Q: Do both parts meet the same regulatory standards?

A: Yes. Both T0340RA and FX0458/1 are ROHS3 compliant and REACH unaffected, confirming equivalent regulatory status for applications subject to these requirements.

Q: What contact materials are used in each part?

A: T0340RA contact material specifications are not provided in the technical data. FX0458/1 uses brass contacts with silver finish, which is standard for cartridge fuse holder applications and provides reliable electrical performance and corrosion resistance.