A50P200-4 Equivalent & Substitute Parts

Part Overview

The A50P200-4 is a fast-acting fuse manufactured by Mersen USA Newburyport-MA L.L.C., currently in active product status with ROHS3 compliance. This component is supplied in box packaging with 5300 pieces available in new original stock. Fast-acting fuses are critical protective devices in electrical systems, and identifying equivalent substitute parts ensures continuity of supply and system reliability when the primary part becomes unavailable.

Substiute Parts

A50P200-4

Mersen USA Newburyport-MA L.L.C.In Stock: 5374A50P200-4 Datasheet

Current PartRFQ

L50S200.V

Littelfuse Inc.In Stock: 1011L50S200.V Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the A50P200-4 is based on the following critical parameters derived from the provided data:

• Fuse Type & Response Characteristic: Fast-acting response time classification
• Current Rating: 200A nominal capacity
• Voltage Rating: Electrical stress ratings (AC and DC components)
• Mounting Configuration: Physical form factor and terminal type
• Regulatory Compliance: ROHS3 compliance and approval certifications
• Product Status: Active manufacturing status ensuring availability

The substitute part L50S200.V from Littelfuse Inc. meets these criteria through matching current rating, voltage specifications, fast-blow response characteristic, and equivalent regulatory compliance status.

Parameter Comparison

Engineering Selection Recommendations

Both the A50P200-4 and L50S200.V maintain active product status with current manufacturing support. Selection between these parts should be based on:

• Regulatory Compliance: Both parts are ROHS3 compliant, meeting environmental and hazardous substance restrictions
• Supply Chain Continuity: The L50S200.V substitute provides an alternative source from Littelfuse Inc. with 927 pieces in current stock
• Certification Requirements: The L50S200.V carries CE, CSA, and UR approvals, supporting applications requiring third-party certification
• Physical Integration: Verify mounting configuration compatibility with your system design, as the L50S200.V is specified as bolt mount cartridge type

Frequently Asked Questions (FAQ)

Q: What makes L50S200.V a valid substitute for A50P200-4?

A: Both parts share the same 200A current rating and fast-acting response characteristic. The L50S200.V is rated for 500 VAC / 450 VDC operation with active product status and ROHS3 compliance, meeting the core electrical and regulatory requirements for substitution.

Q: Are there any physical differences between these fuses?

A: The L50S200.V is specified as a cartridge fuse with bolt mount terminals and cylindrical form factor (1.220" Dia x 2.126" L). Verify that your application's mechanical mounting interface accommodates this configuration before substitution.

Q: Do both parts have equivalent certifications?

A: The L50S200.V carries CE, CSA, and UR approvals. Confirm that your application requirements align with these specific certifications, as the A50P200-4 certification details were not provided in the reference data.

Q: What is the moisture sensitivity difference between these parts?

A: The A50P200-4 has MSL listed as Not Applicable, while the L50S200.V is rated MSL 1 (Unlimited). This indicates the L50S200.V has no moisture sensitivity restrictions during storage and handling.

Q: Can I use L50S200.V as a direct drop-in replacement?

A: Electrical compatibility is established through matching current rating and fast-acting response. Physical compatibility requires verification of mounting interface, terminal type, and dimensional fit within your specific application enclosure.