ROV07H220L-S Equivalent & Substitute Parts

Part Overview

The ROV07H220L-S is a 22V 500A varistor manufactured by Littelfuse Inc., designed for transient voltage suppression in through-hole applications. This component features a disc form factor with 7mm dimensions and is rated for surge currents up to 500A with 1.7J energy absorption capability. The part is classified as obsolete, necessitating identification of active equivalent components for new designs and ongoing production requirements.

Substiute Parts

ROV07H220L-S

Littelfuse Inc.In Stock: 678ROV07H220L-S Datasheet

Current PartRFQ

ERZ-V07D220

Panasonic Electronic ComponentsIn Stock: 6530ERZ-V07D220 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ROV07H220L-S is determined by the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Varistor voltage rating within the specified range (minimum 20V, typical 22V, maximum 24V)
• Surge current capacity of 500A
• Maximum AC and DC voltage ratings of 14V and 18V respectively
• Operating temperature range compatibility

Mechanical Compatibility Criteria:

• Through-hole mounting configuration
• Disc form factor with compatible dimensions
• Single circuit configuration

The ERZ-V07D220 from Panasonic Electronic Components meets these substitution criteria with equivalent electrical performance and compatible mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

The ERZ-V07D220 is a direct functional equivalent for the obsolete ROV07H220L-S. Both components are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements. The Panasonic substitute maintains identical surge current capacity (500A) and voltage ratings (14V AC / 18V DC maximum), with varistor voltage specifications within acceptable tolerance bands.

The primary design consideration is the operating temperature range: the ROV07H220L-S supports -40°C to 125°C, while the ERZ-V07D220 is rated to -40°C to 85°C. Applications requiring operation above 85°C must evaluate thermal performance requirements. The package dimension difference (7mm versus 8.5mm disc) requires verification of PCB layout compatibility, though both maintain through-hole mounting configuration.

The ERZ-V07D220 is currently in active production status with established supply availability, making it the recommended replacement for the discontinued ROV07H220L-S.

Frequently Asked Questions (FAQ)

Q: Can the ERZ-V07D220 directly replace the ROV07H220L-S in existing designs?

A: The ERZ-V07D220 provides electrical equivalence with identical surge current (500A) and voltage ratings (14V AC / 18V DC). PCB layout verification is required due to the package dimension change from 7mm to 8.5mm disc. Applications operating above 85°C ambient temperature must confirm thermal compatibility with the lower maximum operating temperature of the Panasonic component.

Q: What are the key differences between these two varistors?

A: The primary differences are product status (obsolete versus active), operating temperature range (-40°C to 125°C versus -40°C to 85°C), energy absorption (1.7J versus 1.3J), and package dimensions (7mm versus 8.5mm). Electrical performance for voltage suppression and surge current handling remains equivalent.

Q: Are both components RoHS compliant?

A: Yes, both the ROV07H220L-S and ERZ-V07D220 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.

Q: What should be verified before implementing the ERZ-V07D220 as a substitute?

A: Verify PCB layout compatibility with the 8.5mm disc package dimension, confirm operating temperature requirements do not exceed 85°C ambient, and validate that the 1.3J energy rating is sufficient for the application's transient suppression requirements.