ROV05-220L-2 Equivalent & Substitute Parts

Part Overview

The ROV05-220L-2 is a 22V 100A 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 component procurement. The varistor provides single-circuit protection with a nominal voltage rating of 22V and surge current handling of 100A.

Substiute Parts

ROV05-220L-2

Littelfuse Inc.In Stock: 1194ROV05-220L-2 Datasheet

Current PartRFQ

ERZ-V05D220

Panasonic Electronic ComponentsIn Stock: 2785ERZ-V05D220 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ROV05-220L-2 is determined by the following critical parameters:

• Varistor Voltage Rating: Nominal voltage must be 22V to maintain circuit protection characteristics
• Maximum DC Volts: Must not exceed 18V to ensure compatible clamping behavior
• Number of Circuits: Single-circuit configuration required
• Mounting Type: Through-hole mounting mandatory for PCB compatibility
• Operating Temperature Range: Must support -40°C to 85°C minimum
• RoHS Compliance: ROHS3 compliance required for regulatory alignment

The ERZ-V05D220 from Panasonic Electronic Components meets these substitution criteria. While the package transitions from 5mm to 7mm disc and surge current increases from 100A to 250A, the core electrical parameters—nominal voltage, maximum DC rating, circuit count, mounting type, temperature range, and compliance status—remain compatible with the original design requirements.

Parameter Comparison

Engineering Selection Recommendations

The ERZ-V05D220 is the designated substitute for the obsolete ROV05-220L-2. Selection is based on:

• Product Status Alignment: The substitute is active and currently manufactured, ensuring long-term availability and supply chain continuity
• Electrical Compatibility: Nominal varistor voltage, maximum DC rating, and energy absorption remain equivalent
• Regulatory Compliance: Both parts maintain ROHS3 compliance and REACH unaffected status
• Operational Parameters: Temperature range and circuit configuration are identical
• Physical Consideration: Package size increases from 5mm to 7mm disc; PCB layout modification may be required

The increased surge current rating (250A versus 100A) provides enhanced transient protection margin without compromising the original circuit design intent.

Frequently Asked Questions (FAQ)

Q: Can the ERZ-V05D220 be used as a direct replacement for the ROV05-220L-2?

A: The ERZ-V05D220 is electrically equivalent for the core protection function. The package size change from 5mm to 7mm disc requires verification of PCB footprint compatibility and available board space.

Q: What is the significance of the surge current increase from 100A to 250A?

A: The higher surge current rating indicates enhanced transient energy handling capability. This does not degrade circuit performance and provides additional safety margin for transient events.

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

A: Both parts are ROHS3 compliant and REACH unaffected. No compliance barriers exist for substitution.

Q: Why is the varistor voltage range different between the two parts?

A: The ERZ-V05D220 has a tighter varistor voltage tolerance (20V–24V) compared to the ROV05-220L-2 (18.7V–25.3V). Both maintain the 22V nominal rating required for circuit protection.

Q: Does the package size change affect electrical performance?

A: Package size does not affect electrical performance. The 7mm disc provides equivalent electrical characteristics to the 5mm disc. Physical board layout must accommodate the larger package footprint.

Q: Is the ERZ-V05D220 currently available?

A: Yes, the ERZ-V05D220 is in active production status with current inventory availability.