T090.660 Equivalent & Substitute Parts Reference

Part Overview

The T090.660 is a 1 A AC DC fuse cartridge manufactured by SCHURTER Inc. in a glass construction with 5mm x 20mm dimensions. This component requires a separate holder for installation and operates with slow-blow response characteristics. The part is classified as obsolete, necessitating identification of active equivalent alternatives to maintain design continuity and ensure ongoing component availability for new production and field service applications.

Substiute Parts

T090.660

SCHURTER Inc.In Stock: 1104T090.660 Datasheet

Current PartRFQ

0001.2504

SCHURTER Inc.In Stock: 31810001.2504 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the T090.660 is based on the following critical parameters that must remain consistent across equivalent components:

Mandatory Matching Parameters:

• Current Rating: 1 A
• Package / Case: 5mm x 20mm form factor
• Response Time: Slow Blow
• Mounting Type: Requires Holder
• Manufacturer: SCHURTER Inc.

The substitute part 0001.2504 maintains electrical equivalence through identical current rating and response characteristics. While the fuse construction differs (ceramic versus glass), both cartridge types are compatible with standard 5mm x 20mm holders. The substitute part is classified as active product status, ensuring continued availability and manufacturing support.

Parameter Comparison

Engineering Selection Recommendations

The 0001.2504 serves as the direct active equivalent for the obsolete T090.660. Both components share identical current ratings, response characteristics, and physical form factors compatible with 5mm x 20mm holders. The substitute part provides enhanced specifications including defined voltage ratings (250 V AC / 300 V DC), comprehensive international approvals (CCC, cURus, KC, PSE/JET, VDE), and RoHS3 compliance. The ceramic construction of the substitute part maintains functional equivalence while offering improved thermal stability across the operating temperature range of -55°C to 125°C. The marginal dimensional difference (0.205" versus 0.197" diameter) remains within standard holder tolerances for this form factor.

Frequently Asked Questions (FAQ)

Q: Can the 0001.2504 directly replace the T090.660 in existing applications?

A: Yes. Both components are 1 A slow-blow cartridge fuses in 5mm x 20mm form factor requiring standard holders. The substitute part is compatible with existing holder installations.

Q: What is the primary difference between the T090.660 and 0001.2504?

A: The main difference is construction material: the T090.660 uses glass, while the 0001.2504 uses ceramic. Both provide equivalent electrical performance at 1 A with slow-blow response. The ceramic construction of the substitute offers enhanced thermal characteristics and defined voltage ratings.

Q: Are there voltage rating differences between these parts?

A: The T090.660 specifications do not include defined voltage ratings. The 0001.2504 is rated for 250 V AC and 300 V DC. Applications requiring specific voltage compliance should verify the 0001.2504 ratings meet circuit requirements.

Q: Does the slight diameter difference (0.197" vs 0.205") affect compatibility?

A: No. Both dimensions fall within standard tolerance ranges for 5mm x 20mm cartridge fuse holders. The difference does not impact mechanical fit or electrical performance.

Q: What certifications does the substitute part carry?

A: The 0001.2504 holds approvals from CCC, cURus, KC, PSE/JET, and VDE. It is RoHS3 compliant and REACH unaffected. The T090.660 certification information is not specified.

Q: Is the 0001.2504 suitable for new designs?

A: Yes. The 0001.2504 is classified as active product status with full manufacturing support, comprehensive certifications, and defined operating parameters suitable for new product development and production applications.