SCHURTER P090.656 Equivalent & Substitute Parts

Part Overview

The SCHURTER P090.656 is a 400 mA slow blow glass cartridge fuse with a 5mm x 20mm form factor designed for AC/DC applications. This fuse requires a compatible holder for installation and is classified as obsolete. Due to its obsolete status, identifying equivalent substitute parts with active product availability is essential for ongoing system maintenance and new design implementations.

Substiute Parts

P090.656

SCHURTER Inc.In Stock: 660P090.656 Datasheet

Current PartRFQ

0034.5039

SCHURTER Inc.In Stock: 11500034.5039 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P090.656 is determined by the following critical parameters that must remain constant:

• Current Rating: 400 mA (exact match required)
• Fuse Type: Cartridge, Glass (form factor and construction type)
• Response Time: Slow Blow (thermal response characteristic)
• Package / Case: 5mm x 20mm (physical dimensions and holder compatibility)
• Mounting Type: Requires Holder (installation method)

The substitute part SCHURTER 0034.5039 maintains all these core parameters while providing enhanced specifications including voltage rating, operating temperature range, and active product status. This part is functionally compatible for direct replacement in applications where the P090.656 was originally specified.

Parameter Comparison

Engineering Selection Recommendations

The SCHURTER 0034.5039 is the direct substitute for the obsolete P090.656. Selection of this part is based on the following engineering criteria:

Functional Equivalence: Both parts share identical current rating (400 mA), response time (slow blow), fuse type (cartridge glass), and physical dimensions (5mm x 20mm). This ensures mechanical and electrical compatibility within existing holder assemblies.

Product Status: The 0034.5039 maintains active product status with current manufacturing and distribution, eliminating supply chain risk associated with the obsolete P090.656.

Compliance and Certification: The 0034.5039 carries cURus approval agency certification, ROHS3 compliance, and REACH unaffected status, meeting contemporary regulatory requirements for component selection in new designs and system upgrades.

Enhanced Specifications: The substitute part provides documented voltage rating (250 V AC), operating temperature range (-40°C ~ 85°C), breaking capacity (35A), and melting I²t (5.2), offering complete electrical characterization for circuit design verification.

Frequently Asked Questions (FAQ)

Q: Can the SCHURTER 0034.5039 be used as a direct replacement for the P090.656?

A: Yes. Both parts are 400 mA slow blow glass cartridge fuses with identical 5mm x 20mm dimensions and holder mounting requirements. The 0034.5039 is functionally equivalent and compatible with existing holder assemblies designed for the P090.656.

Q: What is the primary advantage of switching to the 0034.5039?

A: The 0034.5039 is an active product with current manufacturing support, whereas the P090.656 is obsolete. Additionally, the 0034.5039 provides complete electrical specifications including voltage rating, operating temperature range, and regulatory certifications (cURus, ROHS3, REACH).

Q: Are the physical dimensions identical between these two parts?

A: The core package dimensions are 5mm x 20mm for both parts. The 0034.5039 has a slightly larger diameter specification (5.20mm versus 5.00mm for the P090.656), which remains within standard holder tolerances for 5x20mm cartridge fuses.

Q: What certifications does the substitute part carry?

A: The SCHURTER 0034.5039 carries cURus approval agency certification, is ROHS3 compliant, and is REACH unaffected, meeting current regulatory standards for electronic component use.

Q: Is the 250 V AC rating of the 0034.5039 compatible with applications originally using the P090.656?

A: The 250 V AC rating of the 0034.5039 establishes the maximum voltage at which the fuse operates at its rated 400 mA current. Applications using the P090.656 at or below 250 V AC are fully compatible with the substitute part.