SCHURTER 0034.5133 Equivalent & Substitute Parts

Part Overview

The SCHURTER 0034.5133 is a 2.5 A, 250 V AC/DC fast-blow glass fuse cartridge in the 3AB/3AG package format (1/4" x 1-1/4"). This component is classified as obsolete and requires a compatible fuse holder for installation. Due to its obsolete status, identifying equivalent substitute parts with compatible electrical and mechanical specifications is necessary for ongoing system maintenance and component procurement.

Substiute Parts

0034.5133

SCHURTER Inc.In Stock: 10520034.5133 Datasheet

Current PartRFQ

8020.5072

SCHURTER Inc.In Stock: 56818020.5072 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SCHURTER 0034.5133 is determined by the following critical parameters:

Mechanical Compatibility:

• Package format: 3AB, 3AG
• Physical dimensions: 1/4" x 1-1/4" (6.35mm x 31.80mm)
• Mounting type: Requires holder

Electrical Compatibility:

• Current rating: 2.5 A
• Response time: Fast Blow
• Physical form factor: Cartridge

Voltage Consideration: The original part operates at 250 V AC. Substitute parts may operate at higher voltage ratings (such as 500 V AC) while maintaining the same current rating and physical dimensions. Higher voltage-rated fuses are mechanically and electrically compatible in circuits designed for lower voltages, as the fuse will operate within its rated parameters.

The substitute part SCHURTER 8020.5072 meets all mechanical compatibility requirements and maintains the same current rating and response time characteristics.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: SCHURTER 8020.5072

The SCHURTER 8020.5072 is the direct substitute for the obsolete 0034.5133. Both components share identical current ratings (2.5 A), response time characteristics (Fast Blow), and physical package dimensions (3AB, 3AG, 1/4" x 1-1/4").

Key Advantages of the Substitute:

• Active product status ensures ongoing availability and supply chain continuity
• Higher voltage rating (500 V AC) provides operational margin in 250 V AC circuits
• Ceramic construction offers improved thermal stability and breaking capacity (1.5 kA vs. 200 A)
• Compliance with cURus certification (Canadian and URS standards)
• RoHS3 compliance and REACH unaffected status align with current regulatory requirements

Operational Considerations: The substitute part operates within a narrower temperature range (-40°C ~ 85°C compared to -55°C ~ 125°C). Applications requiring operation at temperatures below -40°C or above 85°C require evaluation of alternative solutions. The ceramic construction and lower melting I²t value (3.8 vs. 13) indicate faster thermal response characteristics, which may affect circuit protection behavior in specific applications.

Frequently Asked Questions (FAQ)

Q: Can the SCHURTER 8020.5072 be used as a direct replacement for the 0034.5133?

A: Yes. Both components are mechanically compatible (identical 3AB/3AG package and 1/4" x 1-1/4" dimensions) and electrically compatible (identical 2.5 A current rating and Fast Blow response time). The substitute operates at a higher voltage rating (500 V AC vs. 250 V AC), which is compatible with 250 V AC circuits.

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

A: The original part uses glass construction; the substitute uses ceramic construction. Both are cartridge fuses with identical current ratings and response times. Ceramic construction provides higher breaking capacity and improved thermal characteristics.

Q: Will the substitute part fit in the same fuse holder?

A: Yes. Both parts use the 3AB/3AG package format with identical physical dimensions (0.250" Dia x 1.252" L). They are mechanically interchangeable in any compatible 3AB/3AG fuse holder.

Q: Are there temperature range limitations with the substitute part?

A: The substitute part operates within -40°C ~ 85°C, compared to the original part's -55°C ~ 125°C range. Applications requiring operation outside the substitute's temperature range require alternative component selection.

Q: What certifications apply to the substitute part?

A: The SCHURTER 8020.5072 carries cURus certification (Canadian and URS standards), RoHS3 compliance, and REACH unaffected status. The original part carries CSA and UL certifications. Certification requirements for your specific application determine which part is appropriate.

Q: Why is the original part obsolete?

A: The SCHURTER 0034.5133 is classified as obsolete by the manufacturer. The SCHURTER 8020.5072 is the active replacement product that maintains functional and mechanical compatibility while offering improved performance characteristics and regulatory compliance.