SCHURTER 8020.5073 Ceramic Cartridge Fuse - Equivalent & Substitute Parts

Part Overview

The SCHURTER 8020.5073 is a 3.15 A, 500 V AC ceramic cartridge fuse designed for fast-blow applications requiring a 3AB/3AG holder. This fuse is classified as Active product status and is ROHS3 compliant. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained within the allowed specifications for this fuse category, ensuring functional interchangeability in applications where the original part number may be unavailable or inventory constraints exist.

Substiute Parts

8020.5073

SCHURTER Inc.In Stock: 7178020.5073 Datasheet

Current PartRFQ

8020.5073.G

SCHURTER Inc.In Stock: 103298020.5073.G Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part 8020.5073.G is classified as a parametric equivalent based on the following criteria:

Matching Parameters:

• Current Rating: 3.15 A (identical)
• Voltage Rating - AC: 500 V (identical)
• Fuse Type: Cartridge, Ceramic (identical)
• Response Time: Fast Blow (identical)
• Package / Case: 3AB, 3AG, 1/4" x 1-1/4" (identical)
• Breaking Capacity @ Rated Voltage: 1.5 kA (identical)
• Melting I²t: 8.6 (identical)
• Operating Temperature Range: -40°C ~ 85°C (identical)
• Physical Dimensions: 0.250" Dia x 1.252" L (6.35mm x 31.80mm) (identical)
• Approval Agency: cURus (identical)
• RoHS Status: ROHS3 Compliant (identical)

Additional Specification: The substitute part includes a Voltage Rating - DC specification of 400 V, which the main part does not explicitly list. This addition does not restrict substitution in AC-only applications.

Parameter Comparison

Engineering Selection Recommendations

Both the 8020.5073 and 8020.5073.G maintain Active product status and full ROHS3 compliance with cURus approval. The substitute part 8020.5073.G is electrically and mechanically equivalent for AC applications at 500 V, 3.15 A. The addition of DC voltage rating (400 V) in the substitute part does not affect AC-only circuit applications. Selection between these parts should be based on availability and inventory status, as all critical electrical and mechanical parameters remain identical.

Frequently Asked Questions (FAQ)

Q: Can 8020.5073.G be used as a direct replacement for 8020.5073?

A: Yes. Both parts share identical current rating (3.15 A), AC voltage rating (500 V), fuse type (ceramic cartridge), response time (fast blow), package designation (3AB, 3AG), breaking capacity (1.5 kA), melting I²t (8.6), operating temperature range (-40°C ~ 85°C), and physical dimensions (0.250" Dia x 1.252" L). Both are ROHS3 compliant with cURus approval.

Q: What is the difference between 8020.5073 and 8020.5073.G?

A: The substitute part 8020.5073.G includes an additional DC voltage rating specification of 400 V. The main part 8020.5073 does not list a DC voltage rating. This difference does not affect substitution in AC-only applications.

Q: Are both parts compatible with 3AB and 3AG holders?

A: Yes. Both parts are specified for 3AB, 3AG, 1/4" x 1-1/4" package designation and physical dimensions of 0.250" Dia x 1.252" L (6.35mm x 31.80mm), ensuring mechanical compatibility with standard holders.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both parts carry cURus approval and are ROHS3 compliant. Both are classified as Active product status.

Q: What is the melting I²t value and why is it important?

A: Both parts have a melting I²t of 8.6. This parameter defines the thermal energy required to melt the fuse element and is critical for ensuring proper coordination with circuit protection schemes.