ROV10H220L Equivalent & Substitute Parts

Part Overview

The ROV10H220L is a 22 V, 1 kA Transient Voltage Suppressor (TVS) varistor manufactured by Littelfuse Inc., designed for through-hole mounting in a 10mm disc package. This component is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement continuity. The varistor provides transient voltage suppression across a single circuit with rated energy absorption of 3.2 J and operates across the temperature range of -40°C to 85°C.

Substiute Parts

ROV10H220L

Littelfuse Inc.In Stock: 924ROV10H220L Datasheet

Current PartRFQ

ERZ-V10D220

Panasonic Electronic ComponentsIn Stock: 1945ERZ-V10D220 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ROV10H220L is determined by the following critical parameters:

Varistor voltage rating (22 V nominal) must be maintained within the specified tolerance range to ensure proper transient suppression at the intended circuit voltage level. The surge current rating (1 kA) and energy absorption capacity (3.2 J) define the component's ability to handle transient events without degradation. Maximum AC and DC voltage ratings establish the continuous operating voltage limits. The through-hole mounting requirement and operating temperature range (-40°C to 85°C) are fixed design constraints. Compliance certifications (ROHS3, REACH Unaffected, EAR99) must be maintained for regulatory and supply chain continuity.

The ERZ-V10D220 from Panasonic Electronic Components meets these substitution criteria with equivalent electrical performance across all critical parameters.

Parameter Comparison

Engineering Selection Recommendations

The ERZ-V10D220 is the qualified substitute for the obsolete ROV10H220L. Both components maintain identical electrical performance across surge current (1 kA), energy absorption (3.2 J), and voltage ratings (22 V nominal). Both are ROHS3 compliant and REACH unaffected, satisfying regulatory requirements for current procurement and deployment.

The ERZ-V10D220 carries active product status, ensuring long-term availability and supply chain stability compared to the obsolete ROV10H220L. The physical package difference (11.5mm disc versus 10mm disc) requires mechanical verification during board layout transition, though both maintain through-hole mounting compatibility.

Frequently Asked Questions (FAQ)

Q: Can the ERZ-V10D220 directly replace the ROV10H220L without circuit modification?

A: The ERZ-V10D220 provides equivalent electrical performance across all critical parameters: 22 V nominal varistor voltage, 1 kA surge current, and 3.2 J energy absorption. Mechanical board layout verification is required due to the package size difference (11.5mm versus 10mm disc diameter).

Q: What is the significance of the varistor voltage tolerance range difference?

A: The ROV10H220L specifies 18.7 V to 25.3 V, while the ERZ-V10D220 specifies 20 V to 24 V. Both ranges encompass the 22 V nominal rating. The ERZ-V10D220 tolerance is tighter, providing more consistent voltage clamping characteristics across the production population.

Q: Are there compliance or certification differences between these parts?

A: Both components are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export control purposes. No compliance barriers exist for substitution.

Q: Why is the ERZ-V10D220 package larger (11.5mm versus 10mm)?

A: The 11.5mm disc package is the current production standard for Panasonic's ZNR® varistor series at this voltage and current rating. Board layout must accommodate this dimension during design transition.

Q: Is the higher capacitance of the ERZ-V10D220 (11000 pF versus 5520 pF) a concern?

A: Capacitance is provided for reference at 1 kHz. The doubled capacitance value reflects the larger physical package. Circuit-level impact depends on application frequency response requirements and should be evaluated during integration testing.