SCHURTER 0034.1009 Equivalent & Substitute Parts

Part Overview

The SCHURTER 0034.1009 is an 8A 250VAC glass cartridge fuse in the SA 6.3x32 series, designed for fast-blow protection in 3AB/3AG holder applications. This part is classified as obsolete, necessitating identification of active equivalent components to maintain system functionality and ensure continued availability for replacement and new designs.

Substiute Parts

0034.1009

SCHURTER Inc.In Stock: 9080034.1009 Datasheet

Current PartRFQ

8020.5077

SCHURTER Inc.In Stock: 32878020.5077 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 0034.1009 is determined by the following critical parameters:

• Current Rating: 8 A (exact match required)
• Package / Case: 3AB, 3AG, 1/4" x 1-1/4" (mechanical compatibility with existing holders)
• Response Time: Fast Blow (functional protection characteristic)
• Operating Temperature Range: -40°C ~ 85°C (environmental compatibility)
• Breaking Capacity: 1.5kA (fault protection capability)
• Size / Dimension: 0.250" Dia x 1.252" L (physical fit in holder)

The substitute part SCHURTER 8020.5077 meets all mechanical and electrical compatibility criteria. While the voltage rating differs (500V vs. 250V), this represents an upgrade in voltage capability that maintains backward compatibility in 250V applications.

Parameter Comparison

Engineering Selection Recommendations

The SCHURTER 8020.5077 is the direct substitute for the obsolete 0034.1009. Selection is based on:

• Active product status ensuring long-term availability and supply chain continuity
• Identical current rating, package dimensions, and holder compatibility
• Identical breaking capacity and operating temperature range
• Higher voltage rating (500V) provides enhanced capability margin in 250V applications
• cURus certification provides additional regulatory approval coverage
• ROHS3 compliance maintained across both parts

The transition from glass to ceramic fuse construction in the substitute part represents a material upgrade that maintains functional equivalence while improving reliability characteristics.

Frequently Asked Questions (FAQ)

Q: Can the 8020.5077 directly replace the 0034.1009 in existing applications?

A: Yes. Both parts share identical current rating (8A), package dimensions (3AB/3AG, 1/4" x 1-1/4"), breaking capacity (1.5kA), response time (Fast Blow), and operating temperature range (-40°C ~ 85°C). Physical installation in existing 3AB/3AG holders is identical.

Q: What is the significance of the voltage rating difference (250V vs. 500V)?

A: The 8020.5077 operates at 500V AC, which exceeds the 250V requirement of the original application. This higher voltage rating is compatible with 250V systems and provides additional safety margin. No circuit modification is required.

Q: Why does the substitute use ceramic construction instead of glass?

A: Both glass and ceramic cartridge fuses meet the same electrical and mechanical specifications for this application. Ceramic construction is a material upgrade that maintains functional equivalence while offering improved durability characteristics.

Q: Are there any compliance or certification differences?

A: The 8020.5077 carries cURus certification, providing additional regulatory approval beyond the base ROHS3 compliance shared by both parts. Both parts maintain ROHS3 compliance and REACH unaffected status.

Q: Is the 8020.5077 available in the same packaging format?

A: Yes. Both parts are supplied in bulk packaging and are compatible with 3AB and 3AG holder types. Physical dimensions are identical: 0.250" Dia x 1.252" L (6.35mm x 31.80mm).