SCHURTER N090.655 Equivalent & Substitute Parts

Part Overview

The SCHURTER N090.655 is a 310 mA slow-blow glass cartridge fuse with 5mm x 20mm dimensions, designed for AC/DC applications requiring a cartridge-style fuse holder. This component is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system support and procurement planning. The part operates without specific voltage rating constraints in its original specification, though it is intended for general-purpose fuse applications in the 5x20mm form factor.

Substiute Parts

N090.655

SCHURTER Inc.In Stock: 805N090.655 Datasheet

Current PartRFQ

0034.5038

SCHURTER Inc.In Stock: 13280034.5038 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the N090.655 is based on the following critical parameters that must remain consistent:

• Fuse Type: Cartridge, Glass (mechanical and electrical compatibility with standard fuse holders)
• Current Rating: 310 mA nominal (functional equivalence for circuit protection)
• Response Time: Slow Blow (time-delay characteristic for inrush current tolerance)
• Package / Case: 5mm x 20mm (physical form factor and holder compatibility)
• Mounting Type: Requires Holder (installation method consistency)

The substitute part SCHURTER 0034.5038 meets all these core parameters. While the substitute carries a slightly higher current rating of 315 mA and includes additional specifications (voltage rating, breaking capacity, and compliance certifications), these represent enhancements to the original specification rather than deviations. The substitute maintains mechanical and electrical compatibility within the 5x20mm cartridge fuse category.

Parameter Comparison

Engineering Selection Recommendations

The SCHURTER 0034.5038 is the direct substitute for the obsolete N090.655. Selection of this substitute is supported by the following factors:

Product Status: The N090.655 is obsolete, while the 0034.5038 is active and currently manufactured, ensuring long-term availability and supply chain continuity.

Electrical Compatibility: Both parts are slow-blow glass cartridge fuses in the 5x20mm form factor. The 315 mA rating of the substitute is within 1.6% of the original 310 mA specification, maintaining functional equivalence for circuit protection applications.

Mechanical Compatibility: Both parts require a standard 5x20mm fuse holder, ensuring direct physical interchangeability without modification to mounting hardware or installation procedures.

Compliance and Certifications: The substitute carries cURus approval and ROHS3 compliance, providing enhanced regulatory standing compared to the original part's unspecified approval status. The substitute also includes defined operating temperature range (-40°C ~ 85°C) and voltage rating (250 V AC), offering greater specification clarity for system design validation.

Inventory and Availability: The substitute is available in higher quantities (1220 pcs) compared to the original part (706 pcs), supporting both immediate procurement and long-term stock management.

Frequently Asked Questions (FAQ)

Q: Can the 0034.5038 be used as a direct replacement for the N090.655 in existing designs?

A: Yes. Both parts are slow-blow glass cartridge fuses with identical 5x20mm dimensions and mounting requirements. The 315 mA rating of the substitute is functionally equivalent to the 310 mA original specification for circuit protection purposes.

Q: What is the significance of the current rating difference (310 mA vs. 315 mA)?

A: The 5 mA difference represents a 1.6% variance and falls within normal manufacturing tolerance ranges for fuse components. Both parts operate in the same functional category and provide equivalent circuit protection characteristics.

Q: Does the substitute require a different fuse holder?

A: No. Both the N090.655 and 0034.5038 use the standard 5x20mm cartridge fuse holder. No hardware modifications are necessary for substitution.

Q: What is the advantage of the 250 V AC rating on the substitute?

A: The substitute specifies a 250 V AC voltage rating, providing explicit confirmation of voltage compatibility. The original part did not include a voltage specification. This additional specification supports design validation and regulatory compliance documentation.

Q: Are there any temperature or environmental differences between the parts?

A: The substitute specifies an operating temperature range of -40°C ~ 85°C. The original part did not include temperature specifications. If your application operates within this range, the substitute is fully compatible.

Q: What certifications does the substitute carry?

A: The 0034.5038 carries cURus approval and is ROHS3 compliant. These certifications support use in regulated applications and markets requiring environmental compliance.

Q: Is the substitute available in the same packaging as the original?

A: The substitute is supplied in bulk packaging, whereas the original part packaging type was not specified. Confirm packaging requirements with your procurement process.