SCHURTER X090.663 Equivalent & Substitute Parts

Part Overview

The SCHURTER X090.663 is a 2 A AC DC fuse cartridge with glass construction, designed for 5mm x 20mm holder applications. This component is classified as obsolete, necessitating identification of active equivalent parts to maintain design continuity and ensure procurement availability. Glass fuse cartridges in this specification are no longer actively manufactured by SCHURTER, making substitute identification critical for ongoing system support and new production requirements.

Substiute Parts

X090.663

SCHURTER Inc.In Stock: 893X090.663 Datasheet

Current PartRFQ

0001.2507

SCHURTER Inc.In Stock: 103730001.2507 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the X090.663 is based on the following critical parameters that must remain constant across equivalent parts:

Mandatory Matching Parameters:

• Current Rating: 2 A
• Package / Case: 5mm x 20mm
• Mounting Type: Requires Holder
• Response Time: Slow Blow

The SCHURTER 0001.2507 qualifies as a functional substitute because it maintains identical current rating, package dimensions, mounting requirements, and response characteristics. The primary difference is the fuse element material (ceramic versus glass) and the addition of voltage ratings and breaking capacity specifications in the active substitute part. The ceramic construction of the 0001.2507 provides enhanced electrical performance characteristics while maintaining mechanical and electrical compatibility within the same holder form factor.

Parameter Comparison

Engineering Selection Recommendations

The SCHURTER 0001.2507 is the designated substitute for the obsolete X090.663. Selection of this part is based on the following engineering criteria:

Product Status Alignment: The 0001.2507 maintains active production status, ensuring long-term availability and supply chain continuity compared to the obsolete X090.663.

Mechanical Compatibility: Both parts share identical current rating (2 A), response time (Slow Blow), and package form factor (5mm x 20mm). The dimensional variance of 0.008" in diameter (0.205" versus 0.197") remains within acceptable mechanical tolerance for standard 5x20mm fuse holders.

Regulatory Compliance: The 0001.2507 carries multiple international approvals (CCC, cURus, KC, PSE/JET, VDE) and ROHS3 compliance, providing enhanced regulatory coverage for global applications. The X090.663 approval status was not specified.

Electrical Performance: The 0001.2507 provides specified voltage ratings (250 V AC, 300 V DC), breaking capacity (1.5kA), and thermal characteristics (-55°C ~ 125°C operating range) that establish clear performance boundaries for circuit protection applications.

Frequently Asked Questions (FAQ)

Q: Can the SCHURTER 0001.2507 directly replace the X090.663 in existing designs?

A: Yes. Both parts maintain identical current rating (2 A), response time (Slow Blow), and 5mm x 20mm package dimensions. The 0001.2507 is mechanically compatible with standard 5x20mm fuse holders used for the X090.663. The ceramic construction of the 0001.2507 provides enhanced electrical performance characteristics while maintaining functional equivalence.

Q: What is the primary difference between the X090.663 and 0001.2507?

A: The X090.663 uses glass fuse element construction, while the 0001.2507 uses ceramic construction. The 0001.2507 additionally provides specified voltage ratings (250 V AC, 300 V DC), breaking capacity (1.5kA), and operating temperature range (-55°C ~ 125°C). The X090.663 is obsolete; the 0001.2507 is in active production.

Q: Are there dimensional compatibility concerns between these parts?

A: The diameter dimension differs by 0.008" (0.205" for 0001.2507 versus 0.197" for X090.663). Both parts maintain the same 0.787" length. This minor diameter variance is within acceptable mechanical tolerance for standard 5x20mm fuse holder applications and does not affect functional compatibility.

Q: What certifications does the 0001.2507 carry?

A: The 0001.2507 carries CCC, cURus, KC, PSE/JET, and VDE approvals. It is ROHS3 compliant and REACH unaffected. The X090.663 approval status was not specified.

Q: Why is the X090.663 classified as obsolete?

A: The X090.663 is no longer in active production by SCHURTER Inc. The 0001.2507 represents the current active equivalent in the SCHURTER product line for this specification class.

Q: Can the 0001.2507 be used in applications where voltage ratings were not previously specified for the X090.663?

A: The 0001.2507 provides defined voltage ratings (250 V AC, 300 V DC) and breaking capacity (1.5kA). Circuit designs must verify that application voltage and fault current requirements fall within these specified limits. The X090.663 voltage and breaking capacity specifications were not provided.