ROV05H220L Equivalent & Substitute Parts

Part Overview

The ROV05H220L is a 22 V, 250 A varistor manufactured by Littelfuse Inc., designed for transient voltage suppression in through-hole applications with a 5mm disc package. This part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement continuity. The ERZ-V05D220 from Panasonic Electronic Components serves as the manufacturer-recommended substitute, offering equivalent electrical performance within the same product category.

Substiute Parts

ROV05H220L

Littelfuse Inc.In Stock: 996ROV05H220L Datasheet

Current PartRFQ

ERZ-V05D220

Panasonic Electronic ComponentsIn Stock: 2785ERZ-V05D220 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ROV05H220L is determined by the following critical parameters:

• Varistor voltage rating (22 V nominal)
• Surge current capacity (250 A minimum)
• Maximum DC and AC voltage ratings (18 V DC / 14 V AC)
• Operating temperature range (-40°C ~ 85°C)
• Through-hole mounting configuration
• Single-circuit design
• RoHS3 compliance

The ERZ-V05D220 meets all substitution criteria within these allowed parameters. While the package geometry differs (7mm disc versus 5mm disc), both parts maintain through-hole mounting compatibility and equivalent electrical performance specifications.

Parameter Comparison

Engineering Selection Recommendations

The ERZ-V05D220 is the appropriate substitute for the obsolete ROV05H220L based on the following factors:

• Both parts maintain identical varistor voltage ratings (22 V nominal) and surge current capacity (250 A)
• Electrical performance parameters are equivalent across maximum voltage ratings and operating temperature ranges
• Both parts hold ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements
• The ERZ-V05D220 carries active product status, ensuring long-term availability and supply chain continuity
• Package geometry differences (7mm versus 5mm disc) require PCB layout verification but do not affect electrical substitution eligibility

Selection of the ERZ-V05D220 is supported by manufacturer recommendation and compliance alignment with the original specification.

Frequently Asked Questions (FAQ)

Q: Can the ERZ-V05D220 directly replace the ROV05H220L without circuit modification?

A: The ERZ-V05D220 provides electrical equivalence for the ROV05H220L. The package geometry differs (7mm disc versus 5mm disc), requiring verification that the larger footprint accommodates existing PCB hole spacing and component placement constraints.

Q: Are the varistor voltage ratings identical between these parts?

A: Both parts specify 22 V nominal varistor voltage. The ERZ-V05D220 minimum rating is 20 V and maximum is 24 V, while the ROV05H220L ranges from 18.7 V to 25.3 V. Both ranges overlap at the nominal 22 V specification and are functionally equivalent for circuit protection applications.

Q: What is the significance of the different energy ratings (0.8 J versus 0.7 J)?

A: The ROV05H220L specifies 0.8 J energy absorption while the ERZ-V05D220 specifies 0.7 J. Both values fall within acceptable tolerance for equivalent transient voltage suppression performance at the specified surge current of 250 A.

Q: Does the higher capacitance of the ERZ-V05D220 (1500 pF versus 1230 pF) affect circuit compatibility?

A: The capacitance difference is within normal manufacturing tolerance for varistor components. Circuit impact depends on specific application frequency response requirements; both values are measured at 1 kHz and represent standard performance variation for this product category.

Q: Are both parts compliant with current regulatory standards?

A: Yes. Both the ROV05H220L and ERZ-V05D220 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component procurement.