ROV07-201K Equivalent & Substitute Parts

Part Overview

The ROV07-201K is a 200V, 1.2kA disc varistor manufactured by Littelfuse, designed for transient voltage suppression in through-hole applications. This component is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement continuity. The varistor provides protection against voltage transients with a nominal varistor voltage of 200V and surge current rating of 1.2kA across a single circuit configuration.

Substiute Parts

ROV07-201K

LittelfuseIn Stock: 676ROV07-201K Datasheet

Current PartRFQ

ERZ-V07D201

Panasonic Electronic ComponentsIn Stock: 10849ERZ-V07D201 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ROV07-201K is determined by the following critical parameters:

• Varistor Voltage Range: Nominal voltage must remain 200V (acceptable range: 185V to 225V minimum/maximum)
• Surge Current Rating: Minimum 1.2kA required for equivalent protection
• Voltage Ratings: Maximum DC volts of 170V and maximum AC volts of 130V must be maintained
• Mounting Configuration: Through-hole disc package required
• Circuit Count: Single circuit configuration
• Compliance: RoHS3 compliance required

The ERZ-V07D201 meets these substitution criteria with compatible electrical characteristics and active product status.

Parameter Comparison

Engineering Selection Recommendations

The ERZ-V07D201 is a direct functional substitute for the ROV07-201K based on the following criteria:

• Both components maintain identical nominal varistor voltage of 200V within acceptable tolerance ranges
• Both meet maximum DC and AC voltage specifications of 170V and 130V respectively
• The ERZ-V07D201 provides higher surge current capability (1.75kA versus 1.2kA) and greater energy absorption (17.5J versus 14.3J), offering enhanced transient protection margins
• Both components are RoHS3 compliant and REACH unaffected
• The ERZ-V07D201 holds active product status, ensuring long-term availability and supply chain continuity
• Both utilize identical through-hole mounting configuration with single-circuit design

The primary design consideration is the reduced upper operating temperature limit of the ERZ-V07D201 (85°C versus 125°C). Applications requiring sustained operation above 85°C ambient temperature require thermal analysis to confirm compatibility.

Frequently Asked Questions (FAQ)

Q: Can the ERZ-V07D201 be used as a direct replacement for the ROV07-201K?

A: Yes. Both components share identical nominal varistor voltage (200V), maximum DC/AC voltage ratings (170V/130V), and through-hole disc mounting configuration. The ERZ-V07D201 provides higher surge current and energy ratings, making it functionally equivalent or superior for transient suppression applications.

Q: What is the key difference between these two parts?

A: The ERZ-V07D201 offers 1.75kA surge current and 17.5J energy absorption compared to the ROV07-201K's 1.2kA and 14.3J. The ERZ-V07D201 has a lower maximum operating temperature (85°C versus 125°C). The ERZ-V07D201 is actively manufactured, while the ROV07-201K is obsolete.

Q: Are there package compatibility concerns?

A: The ROV07-201K uses a 7mm disc package, while the ERZ-V07D201 uses an 8.5mm disc package. Both are through-hole mounted. PCB layout verification is required to confirm mechanical fit within the available board space.

Q: Does the higher surge current rating of the ERZ-V07D201 affect circuit performance?

A: No. Higher surge current capability provides additional protection margin without affecting normal circuit operation. The identical nominal varistor voltage ensures consistent voltage clamping behavior.

Q: Are both parts compliant with current regulations?

A: Yes. Both components are RoHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.