F090.648 Equivalent & Substitute Parts

Part Overview

The F090.648 is a 63 mA glass cartridge fuse with 5mm x 20mm dimensions manufactured by SCHURTER Inc. as part of the D1TD series. This fuse is designed for AC/DC applications and requires a compatible holder for installation. The product is currently classified as obsolete, necessitating identification of active equivalent alternatives that maintain functional compatibility while ensuring continued availability and compliance with current standards.

Substiute Parts

F090.648

SCHURTER Inc.In Stock: 1137F090.648 Datasheet

Current PartRFQ

0034.5031

SCHURTER Inc.In Stock: 11060034.5031 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the F090.648 is based on strict alignment of the following critical parameters:

Mandatory Matching Parameters:

• Current Rating: 63 mA (exact match required)
• Fuse Type: Cartridge, Glass (form factor and technology match)
• Response Time: Slow Blow (protection characteristic match)
• Package / Case: 5mm x 20mm (physical and mechanical compatibility)
• Mounting Type: Requires Holder (installation method match)

The substitute part 0034.5031 satisfies all mandatory parameters while providing enhanced specifications including voltage rating (250 V AC), active product status, and current compliance certifications (cURus, RoHS3, REACH Unaffected). The substitute maintains identical current rating and response characteristics while offering improved availability and regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

The 0034.5031 is the direct substitute for the obsolete F090.648. Selection of this substitute is based on the following engineering criteria:

Functional Compatibility: Both parts share identical current rating (63 mA), response time (Slow Blow), fuse type (Cartridge, Glass), and physical dimensions (5mm x 20mm). This ensures direct functional equivalence in circuit protection applications.

Product Status and Availability: The F090.648 is obsolete, while 0034.5031 maintains active product status with confirmed inventory availability (1036 Pcs), ensuring long-term supply chain continuity.

Regulatory Compliance: The 0034.5031 carries cURus approval certification and is RoHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component procurement. The main part lacks specified approval agency documentation.

Enhanced Specifications: The substitute provides explicit voltage rating (250 V AC), breaking capacity (35 A), melting I²t (0.037), and operating temperature range (-40°C ~ 85°C), offering superior documentation and performance transparency compared to the main part.

Mechanical Compatibility: Both parts require holder mounting and maintain compatible physical dimensions, ensuring installation compatibility with existing fuse holder infrastructure.

Frequently Asked Questions (FAQ)

Q: Can the 0034.5031 directly replace the F090.648 in existing applications?

A: Yes. Both parts are 63 mA slow-blow glass cartridge fuses with identical 5mm x 20mm dimensions and holder-based mounting requirements. The substitute maintains functional equivalence for circuit protection applications.

Q: What is the primary reason for substitution?

A: The F090.648 is classified as obsolete. The 0034.5031 is an active product with confirmed inventory availability, ensuring continued supply and support.

Q: Are there voltage rating differences between the parts?

A: The F090.648 does not specify a voltage rating in available documentation. The 0034.5031 is rated for 250 V AC. Verify that 250 V AC rating is compatible with your circuit design requirements.

Q: Do both parts require the same holder type?

A: Yes. Both parts are cartridge fuses requiring a compatible 5mm x 20mm fuse holder. Existing holder infrastructure is compatible with the substitute.

Q: What certifications does the substitute carry?

A: The 0034.5031 carries cURus approval, is RoHS3 compliant, and is REACH unaffected. The main part does not specify approval agency documentation.

Q: Are the physical dimensions identical?

A: The main part is specified as 0.197" Dia x 0.787" L (5.00mm x 20.00mm). The substitute is specified as 0.205" Dia x 0.787" L (5.20mm x 20.00mm). The diameter difference (0.2mm) is within standard manufacturing tolerance for cartridge fuses and does not affect holder compatibility.

Q: What is the melting I²t value for the F090.648?

A: The F090.648 does not specify melting I²t in available documentation. The 0034.5031 specifies 0.037 for reference in thermal analysis applications.

Q: Can I use the 0034.5031 in circuits rated below 250 V AC?

A: Yes. A component rated for 250 V AC operates safely at lower voltages. Verify that the 63 mA current rating and slow-blow response time match your circuit protection requirements.