A50P80-4 Equivalent & Substitute Parts

Part Overview

The A50P80-4 is a fast-acting fuse manufactured by Mersen USA Newburyport-MA L.L.C., currently in active product status with 737 units in stock. This component is ROHS3 compliant and designed for applications requiring fast-blow fuse protection. Substitute parts are identified to provide equivalent functional performance when the primary part is unavailable or when system requirements necessitate alternative sourcing options.

Substiute Parts

A50P80-4

Mersen USA Newburyport-MA L.L.C.In Stock: 821A50P80-4 Datasheet

Current PartRFQ

L50S080.T

Littelfuse Inc.In Stock: 758L50S080.T Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the A50P80-4 is based on the following electrical and mechanical parameters:

• Fast-blow response time characteristic
• 80A current rating capability
• Cartridge fuse form factor with bolt mount configuration
• 500 VAC / 450 VDC voltage rating compatibility
• ROHS3 compliance requirement
• Active product status and availability

The substitute part L50S080.T from Littelfuse Inc. meets these criteria through equivalent electrical specifications and mechanical compatibility within the cartridge fuse category.

Parameter Comparison

Engineering Selection Recommendations

Both the A50P80-4 and L50S080.T are active products with ROHS3 compliance. The L50S080.T provides equivalent 80A fast-blow protection with specified voltage ratings of 500 VAC and 450 VDC. Selection between these parts should be based on:

• Availability requirements and inventory levels
• Specific voltage rating confirmation for your application
• Mechanical mounting compatibility with bolt mount configuration
• Approval agency requirements (L50S080.T carries CE, CSA, and UR certifications)

Frequently Asked Questions (FAQ)

Q: What makes L50S080.T a suitable substitute for A50P80-4?

A: Both parts share the same 80A current rating and fast-acting/fast-blow response characteristic. The L50S080.T is specified for 500 VAC / 450 VDC operation with cartridge bolt mount configuration, meeting the electrical protection requirements of the A50P80-4 category.

Q: Are there packaging differences between these parts?

A: Both parts are supplied in box packaging. The L50S080.T is a cylindrical cartridge fuse with blade terminal (bolt mount) configuration, sized at 1.000" diameter × 2.126" length.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the A50P80-4 and L50S080.T are ROHS3 compliant. The L50S080.T additionally carries CE, CSA, and UR certifications with a breaking capacity of 200kA AC and 20kA DC.

Q: What is the moisture sensitivity level for these parts?

A: The A50P80-4 has MSL listed as Not Applicable. The L50S080.T has MSL 1 (Unlimited), indicating no moisture sensitivity restrictions.

Q: Can I use these parts interchangeably in my circuit?

A: Interchangeability depends on your specific circuit requirements, including voltage ratings, mounting configuration, and mechanical space constraints. Confirm that the bolt mount cartridge configuration of the L50S080.T matches your application's mechanical interface.