V510LS80CP Equivalent & Substitute Parts

Part Overview

The V510LS80CP is an 820 V, 10 kA Transient Voltage Suppressor (TVS) varistor manufactured by Littelfuse Inc. in a through-hole disc format (20mm). This component is designed for transient voltage protection in electrical circuits and is currently in active production status. Alternative models may be required due to inventory constraints, application-specific performance requirements, or supply chain considerations.

Substiute Parts

V510LS80CP

Littelfuse Inc.In Stock: 714V510LS80CP Datasheet

Current PartRFQ

ERZ-V20D821

Panasonic Electronic ComponentsIn Stock: 14484ERZ-V20D821 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The ERZ-V20D821 (Panasonic Electronic Components, ZNR® series) qualifies as a substitute for the V510LS80CP based on the following critical parameters:

• Varistor Voltage (Typ): 820 V (identical)
• Varistor Voltage Range: 738 V (Min) to 902 V (Max) (identical)
• Maximum AC Volts: 510 V (identical)
• Number of Circuits: 1 (identical)
• Mounting Type: Through Hole (identical)
• RoHS Status: ROHS3 Compliant (identical)
• ECCN Classification: EAR99 (identical)

The primary differences are surge current capacity (7.5 kA vs. 10 kA) and energy rating (460 J vs. 440 J), which must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

Both components meet ROHS3 compliance and REACH unaffected status, qualifying them for equivalent use in regulated applications. The V510LS80CP provides higher surge current capacity (10 kA) and extended low-temperature operation (-55°C minimum). The ERZ-V20D821 offers higher energy absorption (460 J) and maintains the same varistor voltage specifications. Selection between these parts depends on whether the application requires the full 10 kA surge rating or can operate within the 7.5 kA specification of the Panasonic alternative. Physical package dimensions differ (20mm vs. 22.50mm disc), requiring verification of PCB layout compatibility.

Frequently Asked Questions (FAQ)

Q: Can the ERZ-V20D821 replace the V510LS80CP in all applications?

A: Substitution is valid when the application surge current requirement does not exceed 7.5 kA and the operating temperature range does not fall below -40°C. Both components maintain identical varistor voltage specifications (820 V typical) and maximum AC voltage ratings (510 V).

Q: What is the impact of the different surge current ratings?

A: The V510LS80CP is rated for 10 kA surge current, while the ERZ-V20D821 is rated for 7.5 kA. Applications experiencing transient events exceeding 7.5 kA require the higher-rated Littelfuse component.

Q: Are there physical compatibility concerns?

A: Yes. The V510LS80CP uses a 20mm disc package, while the ERZ-V20D821 uses a 22.50mm disc package. PCB footprint and mounting hole spacing must be verified before substitution.

Q: Do both parts meet the same compliance standards?

A: Both components are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export control purposes.

Q: What is the difference in energy absorption capacity?

A: The ERZ-V20D821 absorbs 460 J, compared to 440 J for the V510LS80CP. This difference is minimal and does not typically affect substitution decisions.