Y090.664 Equivalent & Substitute Parts

Part Overview

The Y090.664 is a 2.5 A AC DC fuse cartridge manufactured by SCHURTER Inc. in a 5mm x 20mm glass construction. This component is classified as obsolete and requires a holder for installation. Due to its obsolete product status, equivalent substitute parts are necessary to maintain system functionality and ensure continued availability for replacement applications.

Substiute Parts

Y090.664

SCHURTER Inc.In Stock: 867Y090.664 Datasheet

Current PartRFQ

0001.2508

SCHURTER Inc.In Stock: 11040001.2508 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Y090.664 is based on the following critical parameters that must remain constant:

• Current Rating: 2.5 A (exact match required)
• Package / Case: 5mm x 20mm (physical compatibility with existing holders)
• Response Time: Slow Blow (functional characteristic for circuit protection)
• Mounting Type: Requires Holder (installation method compatibility)
• Manufacturer: SCHURTER Inc. (maintains design consistency and quality standards)

The primary substitute part 0001.2508 maintains all critical parameters while transitioning from glass to ceramic construction. This material change does not affect electrical performance within the specified current and voltage ratings but provides enhanced operational characteristics including defined voltage ratings, breaking capacity, and extended operating temperature range.

Parameter Comparison

Engineering Selection Recommendations

The 0001.2508 is the direct substitute for the obsolete Y090.664. Selection of this part is based on the following engineering criteria:

Product Status: The Y090.664 is obsolete, making the active-status 0001.2508 the appropriate replacement to ensure long-term component availability and supply chain continuity.

Electrical Compatibility: Both parts maintain identical current ratings (2.5 A) and response time characteristics (Slow Blow), ensuring equivalent circuit protection performance. The 0001.2508 provides explicit voltage ratings (250 V AC / 300 V DC) and breaking capacity (1.5kA), offering enhanced specification documentation compared to the Y090.664.

Physical Compatibility: Both parts utilize the 5mm x 20mm cartridge form factor and require holder mounting. The dimensional variance (0.197" to 0.205" diameter) remains within acceptable mechanical tolerances for standard 5x20mm fuse holders.

Compliance and Certifications: The 0001.2508 carries multiple international approvals (CCC, cURus, KC, PSE/JET, VDE) and ROHS3 compliance, providing regulatory assurance for applications requiring certified components. The Y090.664 approval status is not specified.

Material Construction: The transition from glass to ceramic construction in the 0001.2508 provides improved thermal stability and defined operating temperature range (-55°C ~ 125°C), supporting broader application environments.

Frequently Asked Questions (FAQ)

Q: Can the 0001.2508 be used as a direct replacement for the Y090.664 in existing applications?

A: Yes. Both parts share identical current ratings (2.5 A), response time (Slow Blow), package dimensions (5mm x 20mm), and mounting requirements (holder-based installation). The 0001.2508 is compatible with existing Y090.664 fuse holders.

Q: What is the primary difference between the Y090.664 and 0001.2508?

A: The Y090.664 uses glass construction while the 0001.2508 uses ceramic construction. The ceramic design provides explicit voltage ratings (250 V AC / 300 V DC), defined breaking capacity (1.5kA), extended operating temperature range (-55°C ~ 125°C), and multiple international certifications. Both maintain identical electrical performance at the 2.5 A rating.

Q: Why is the Y090.664 marked as obsolete?

A: The Y090.664 is classified as obsolete by the manufacturer. The 0001.2508 represents the current active product line from SCHURTER Inc. for this fuse category and should be used for new designs and replacement applications.

Q: Are there dimensional compatibility concerns when substituting the 0001.2508 for the Y090.664?

A: The diameter increases from 5.00mm to 5.20mm, a variance of 0.20mm. This remains within acceptable mechanical tolerances for standard 5x20mm fuse holder specifications. Length remains constant at 20mm (0.787").

Q: What certifications does the 0001.2508 carry?

A: The 0001.2508 holds approvals from CCC, cURus, KC, PSE/JET, and VDE. It is ROHS3 compliant and REACH unaffected. The Y090.664 approval status is not documented.

Q: Can the 0001.2508 be used in applications with voltage requirements higher than those of the Y090.664?

A: The 0001.2508 is rated for 250 V AC and 300 V DC. Applications must operate within these voltage limits. The Y090.664 voltage ratings are not specified in available documentation, making the 0001.2508 the preferred choice for applications requiring defined voltage compliance.