SCHURTER 7023.0960 Ceramic Fuse Cartridge – Equivalent & Substitute Parts

Part Overview

The SCHURTER 7023.0960 is an 8 A ceramic fuse cartridge rated for 250 V AC and 125 V DC operation. This component is classified as Obsolete and requires a compatible fuse holder (3AB, 3AG format, 1/4" x 1-1/4"). Due to its obsolete product status, identification of active equivalent parts is necessary to ensure continued availability and supply chain continuity for applications requiring this fuse specification.

Substiute Parts

7023.0960

SCHURTER Inc.In Stock: 10997023.0960 Datasheet

Current PartRFQ

8020.5077

SCHURTER Inc.In Stock: 32878020.5077 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SCHURTER 7023.0960 is determined by the following critical parameters:

Mandatory Compatibility Parameters:

• Current Rating: 8 A (must match)
• Fuse Type: Cartridge, Ceramic (must match)
• Package / Case: 3AB, 3AG, 1/4" x 1-1/4" (must match for holder compatibility)
• Response Time: Fast Blow (must match)
• Mounting Type: Requires Holder (must match)

Voltage Considerations: The original part operates at 250 V AC and 125 V DC. Substitute parts with equal or higher voltage ratings are electrically compatible with the original application circuit. The substitute part SCHURTER 8020.5077 provides 500 V AC rating, which exceeds the original specification and is suitable for applications originally designed for the 7023.0960.

Thermal and Mechanical Compatibility: Operating temperature range, physical dimensions, and breaking capacity are secondary parameters that must be verified against specific application requirements but do not prevent substitution when the primary parameters align.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: SCHURTER 8020.5077

The SCHURTER 8020.5077 is the direct functional equivalent for the obsolete 7023.0960. Both components share identical current ratings (8 A), fuse type (ceramic cartridge), response characteristics (fast blow), and mechanical form factor (3AB, 3AG, 1/4" x 1-1/4").

Key Advantages of the Substitute:

• Active product status ensures ongoing availability and supply chain support
• Higher AC voltage rating (500 V vs. 250 V) provides enhanced margin for AC applications
• cURus certification provides recognized safety approval for North American markets
• ROHS3 compliance aligns with modern environmental and regulatory requirements

Application Compatibility Considerations: The substitute part exhibits a higher melting I²t value (120 vs. 9.3), indicating a different thermal response profile. Applications requiring the precise thermal characteristics of the original part must evaluate this difference against circuit protection requirements. The reduced operating temperature maximum (-40°C to 85°C vs. -40°C to 125°C) must be assessed for high-temperature applications.

The lower AC breaking capacity of the substitute (1.5 kA vs. 10 kA) must be verified against the maximum available fault current in the protected circuit.

Frequently Asked Questions (FAQ)

Q: Can the SCHURTER 8020.5077 be used as a direct replacement for the 7023.0960 in existing equipment?

A: The 8020.5077 is mechanically and electrically compatible with the 7023.0960 in terms of current rating, fuse type, and holder compatibility. Both components fit the same 3AB, 3AG holder format. However, the differences in melting I²t, breaking capacity, and operating temperature range must be evaluated against the specific circuit design and application environment.

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

A: The melting I²t parameter defines the thermal energy required to melt the fuse element. The 7023.0960 has a melting I²t of 9.3, while the 8020.5077 has a melting I²t of 120. This indicates the substitute part has a different thermal response and may not provide identical protection timing in all circuit conditions. Circuit analysis is required to determine if this difference is acceptable for the application.

Q: Why does the substitute part have a lower AC breaking capacity?

A: The 8020.5077 has an AC breaking capacity of 1.5 kA compared to the 7023.0960's 10 kA. Breaking capacity defines the maximum fault current the fuse can safely interrupt. The substitute part is suitable for applications where the maximum available fault current does not exceed 1.5 kA. If the circuit can deliver higher fault currents, the substitute part may not provide adequate protection.

Q: Are there any compliance or certification differences between the two parts?

A: The 7023.0960 carries GAM T1 approval, while the 8020.5077 carries cURus certification. The 8020.5077 also meets ROHS3 compliance requirements. These certifications reflect different regulatory frameworks and approval bodies. Equipment designed for specific certification requirements must verify that the substitute part meets those same requirements.

Q: What is the physical dimension difference between the two parts?

A: The 7023.0960 measures 0.250" Dia × 1.260" L, while the 8020.5077 measures 0.250" Dia × 1.252" L. The length difference is 0.008" (0.20 mm). Both parts fit the same holder format, and this minor dimensional variation does not affect mechanical compatibility.

Q: Is the substitute part suitable for DC applications?

A: The 8020.5077 specification does not explicitly state a DC voltage rating. The original 7023.0960 is rated for 125 V DC. Applications requiring DC protection must confirm that the substitute part is suitable for the specific DC voltage and current conditions of the circuit.