SCHURTER 0034.1012 Equivalent & Substitute Parts

Part Overview

The SCHURTER 0034.1012 is a 16A 250VAC fast-blow glass cartridge fuse in 3AB/3AG form factor (6.35mm × 31.80mm). This component is classified as obsolete, making identification of compatible alternatives essential for ongoing system maintenance and new designs. The fuse requires a dedicated holder for installation and is designed for general-purpose AC circuit protection applications.

Substiute Parts

0034.1012

SCHURTER Inc.In Stock: 10290034.1012 Datasheet

Current PartRFQ

8020.5080

SCHURTER Inc.In Stock: 29518020.5080 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 0034.1012 is determined by the following critical parameters:

• Current Rating: Must be 16 A to maintain circuit protection design intent
• Physical Dimensions: Must be 6.35mm × 31.80mm (3AB/3AG standard) for mechanical compatibility with existing holders
• Response Time: Fast-blow characteristic must be preserved for application-specific protection requirements
• Voltage Rating: The substitute must meet or exceed the 250 VAC requirement of the original circuit
• Breaking Capacity: Minimum 1.5 kA at rated voltage to ensure fault interruption capability
• Operating Temperature: Must support the -40°C to +85°C range

The SCHURTER 8020.5080 meets all substitution criteria while offering enhanced voltage ratings and improved thermal performance through ceramic construction.

Parameter Comparison

Engineering Selection Recommendations

The SCHURTER 8020.5080 is the direct substitute for the obsolete 0034.1012. Both components share identical current ratings, physical dimensions, response characteristics, and operating temperature ranges, ensuring mechanical and electrical compatibility within existing circuit designs.

The 8020.5080 provides additional design margin through higher voltage ratings (500 VAC / 400 VDC versus 250 VAC) and ceramic construction, which offers superior thermal stability and higher melting I²t value (760 versus 41). The ceramic element also provides enhanced arc suppression and longer service life under repetitive fault conditions.

The 8020.5080 carries cURus certification, providing recognized safety agency approval for North American applications. Both components maintain ROHS3 compliance and REACH unaffected status, supporting regulatory requirements for modern electronics manufacturing.

Frequently Asked Questions (FAQ)

Q: Can the 8020.5080 be used as a direct replacement in existing 0034.1012 applications?

A: Yes. Both fuses share identical physical dimensions (6.35mm × 31.80mm), current rating (16 A), response time (fast-blow), and operating temperature range (-40°C to +85°C). The 8020.5080 will function in any holder designed for the 0034.1012 without mechanical modification.

Q: What is the difference between glass and ceramic fuse construction?

A: Glass fuses (0034.1012) use silica glass bodies with sand filling. Ceramic fuses (8020.5080) use ceramic bodies with sand filling. Ceramic construction provides superior thermal conductivity, higher melting I²t values, and improved arc suppression, resulting in better performance under fault conditions and extended operational life.

Q: Does the higher voltage rating of the 8020.5080 affect its use in 250 VAC circuits?

A: No. The 8020.5080 is rated for 500 VAC, which exceeds the 250 VAC requirement. Using a higher-rated fuse in a lower-voltage circuit does not compromise protection. The current rating (16 A) remains the primary protection parameter.

Q: Are there any compatibility issues with existing fuse holders?

A: No. Both the 0034.1012 and 8020.5080 conform to the 3AB/3AG standard form factor and physical dimensions. They are mechanically interchangeable in any holder designed for this standard.

Q: What certifications apply to the 8020.5080?

A: The 8020.5080 carries cURus certification, recognized for North American safety compliance. Both the original and substitute maintain ROHS3 compliance and REACH unaffected status.