SCHURTER Z090.665 Equivalent & Substitute Parts

Part Overview

The SCHURTER Z090.665 is a 3.15 A AC DC fuse cartridge with glass construction, designed for 5mm x 20mm holder applications. This component is classified as obsolete, necessitating identification of equivalent substitute parts for ongoing system support and procurement continuity. Glass fuse cartridges in this current rating and package size require compatible holder assemblies for installation.

Substiute Parts

Z090.665

SCHURTER Inc.In Stock: 923Z090.665 Datasheet

Current PartRFQ

0001.2509

SCHURTER Inc.In Stock: 388110001.2509 Datasheet

SimilarRFQ

7040.3140

SCHURTER Inc.In Stock: 7087040.3140 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the Z090.665 is determined by the following critical parameters:

Mandatory Matching Parameters:

• Current Rating: 3.15 A
• Package / Case: 5mm x 20mm
• Mounting Type: Requires Holder
• Response Time: Slow Blow

Allowed Variation Parameters:

• Fuse Type: Glass or Ceramic construction
• Voltage Rating: Dependent on application requirements
• Operating Temperature Range: Dependent on environmental conditions
• Approval Agencies: Dependent on regulatory jurisdiction

Two substitute parts meet the mandatory matching criteria while offering enhanced specifications or alternative construction materials.

Parameter Comparison

Engineering Selection Recommendations

SCHURTER 7040.3140 (Glass Cartridge Substitute): This part maintains identical glass construction and D1TD series designation as the Z090.665. It provides the same current rating and package dimensions with specified voltage rating of 125 V AC. The 7040.3140 is classified as obsolete, matching the status of the main part. Selection of this substitute is appropriate when glass fuse construction is a system requirement and voltage ratings do not exceed 125 V AC.

SCHURTER 0001.2509 (Ceramic Cartridge Substitute): This part offers ceramic construction with enhanced electrical specifications including 250 V AC and 300 V DC voltage ratings, higher breaking capacity of 1.5 kA, and extended operating temperature range of -55°C to 125°C. The 0001.2509 maintains active product status with comprehensive approval agency certifications including CCC, cURus, KC, PSE/JET, and VDE. This substitute is appropriate for applications requiring higher voltage ratings, improved breaking capacity, or extended temperature operation. The ceramic construction provides alternative material properties compared to glass.

Both substitutes maintain the mandatory 3.15 A current rating, 5mm x 20mm package dimensions, slow blow response time, and holder-based mounting requirement. Selection between substitutes depends on specific application voltage requirements, environmental temperature conditions, and regulatory compliance needs.

Frequently Asked Questions (FAQ)

Q: Can the SCHURTER 0001.2509 ceramic fuse be used as a direct replacement for the Z090.665 glass fuse?

A: The 0001.2509 is electrically compatible as a substitute based on matching current rating (3.15 A), response time (slow blow), and package dimensions (5mm x 20mm). However, the 0001.2509 has a slightly larger diameter (5.20mm versus 5.00mm). Verification of holder clearance is necessary before installation. The ceramic construction and higher voltage ratings (250 V AC / 300 V DC) provide enhanced performance characteristics compared to the glass Z090.665.

Q: What is the difference between the glass Z090.665 and the ceramic 0001.2509?

A: The primary differences are construction material (glass versus ceramic), voltage ratings (unspecified for Z090.665 versus 250 V AC / 300 V DC for 0001.2509), breaking capacity (unspecified for Z090.665 versus 1.5 kA for 0001.2509), and operating temperature range (unspecified for Z090.665 versus -55°C to 125°C for 0001.2509). Both maintain identical 3.15 A current rating and slow blow response characteristics.

Q: Is the SCHURTER 7040.3140 a suitable alternative to the Z090.665?

A: Yes, the 7040.3140 is a suitable alternative. Both parts are glass cartridge fuses in the D1TD series with identical 3.15 A current rating, 5mm x 20mm package dimensions, and slow blow response time. The 7040.3140 specifies 125 V AC voltage rating. Both parts are classified as obsolete.

Q: What are the holder compatibility considerations for these fuses?

A: All three fuses (Z090.665, 7040.3140, and 0001.2509) require compatible 5mm x 20mm holder assemblies. The 0001.2509 has a slightly larger diameter (5.20mm) compared to the other two parts (5.00mm). Existing holders designed for 5.00mm diameter fuses may require verification for 5.20mm diameter accommodation.

Q: Which substitute part has the most comprehensive regulatory approvals?

A: The SCHURTER 0001.2509 carries the most extensive approval agency certifications, including CCC, cURus, KC, PSE/JET, and VDE. The 7040.3140 carries UR approval. The Z090.665 does not specify approval agencies.

Q: What is the significance of the melting I²t values?

A: The melting I²t value indicates the thermal energy required to melt the fuse element. The 7040.3140 specifies 370, while the 0001.2509 specifies 33.7. Lower I²t values indicate faster thermal response. The Z090.665 does not specify this parameter.

Q: Are both substitute parts currently available for procurement?

A: The 7040.3140 is classified as obsolete with 692 pieces in stock. The 0001.2509 is classified as active with 38,761 pieces in stock, providing superior long-term procurement availability.