ROV07-220L-S Equivalent & Substitute Parts

Part Overview

The ROV07-220L-S is a 22 V, 250 A Transient Voltage Suppressor (TVS) varistor manufactured by Littelfuse Inc. in a through-hole disc 7mm package. This component is classified as obsolete, though 926 units remain in stock. The part is ROHS3 compliant and rated for operating temperatures from -40°C to 125°C. Due to its obsolete status, equivalent substitute parts from active product lines are necessary for new designs and long-term supply chain continuity.

Key Parameters

Parameter	Value
Varistor Voltage (Typical)	22 V
Current - Surge	250 A
Maximum AC Volts	14 V
Maximum DC Volts	18 V
Energy	1.4 J
Package / Case	Disc 7mm
Mounting Type	Through Hole
Operating Temperature Range	-40°C ~ 125°C
Number of Circuits	1
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the ROV07-220L-S is determined by the following critical parameters:

Varistor Voltage (Typical): 22 V nominal
Current - Surge Rating: 250 A minimum
Maximum AC/DC Voltage Ratings: 14 V AC / 18 V DC
Package / Case: Disc 7mm or compatible through-hole disc format
Mounting Type: Through Hole
Number of Circuits: 1
RoHS Compliance: ROHS3 Compliant

Substitute parts must maintain electrical equivalence within the varistor voltage tolerance band (18.7 V to 25.3 V for the main part) and support the same surge current rating. Physical package compatibility is required for direct board-level replacement. All listed substitutes meet these criteria and are from active product lines, ensuring supply availability.

Parameter Comparison

Part Number	Manufacturer	Varistor Voltage (Typ)	Varistor Voltage (Min)	Varistor Voltage (Max)	Current - Surge	Energy	Package / Case	Operating Temp Range	Product Status
ROV07-220L-S	Littelfuse Inc.	22 V	18.7 V	25.3 V	250 A	1.4 J	Disc 7mm	-40°C ~ 125°C	Obsolete
V22ZA1P	Littelfuse	22 V	19.8 V	24.2 V	250 A	0.9 J	Disc 7mm	-55°C ~ 85°C	Active
B72207S0140K211	EPCOS - TDK Electronics	22 V	19.8 V	24.2 V	250 A	0.9 J	Disc 7mm	-40°C ~ 105°C	Active
ERZ-V07D220	Panasonic Electronic Components	22 V	20 V	24 V	500 A	1.3 J	Disc 8.5mm	-40°C ~ 85°C	Active
MOV-07D220K	Bourns Inc.	22 V	20 V	24 V	250 A	1.1 J	Disc 7mm	-40°C ~ 85°C	Active
MOV-07D220KTR	Bourns Inc.	22 V	20 V	24 V	250 A	1.1 J	Disc 7mm	-40°C ~ 85°C	Active
VDRS07B014TSE	Vishay Beyschlag/Draloric/BC Components	22 V	19.8 V	24.2 V	250 A	1.7 J	Disc 9mm	-40°C ~ 85°C	Active

Engineering Selection Recommendations

All substitute parts listed are ROHS3 compliant and REACH unaffected, meeting the same regulatory requirements as the original ROV07-220L-S.

For direct board-level replacement without layout modification, select from parts with Disc 7mm package: V22ZA1P, B72207S0140K211, MOV-07D220K, or MOV-07D220KTR. These maintain identical physical footprints.

The ERZ-V07D220 features a larger Disc 8.5mm package and higher surge current rating (500 A), suitable for applications requiring enhanced transient protection but requiring PCB layout adjustment.

The VDRS07B014TSE uses a Disc 9mm package and provides the highest energy rating (1.7 J), applicable where increased energy absorption is required but board space permits the larger footprint.

For temperature-critical applications requiring the extended upper operating limit of the original part (-40°C to 125°C), the ROV07-220L-S remains the only option, though its obsolete status limits future availability.

Frequently Asked Questions (FAQ)

Q: Can MOV-07D220KTR replace ROV07-220L-S directly on the PCB?

A: Yes. Both parts use Disc 7mm through-hole packages with identical electrical ratings (22 V typical, 250 A surge). MOV-07D220KTR is the cut tape variant of MOV-07D220K and is electrically equivalent.

Q: What is the difference between V22ZA1P and B72207S0140K211?

A: Both are 22 V, 250 A varistors in Disc 7mm packages with identical electrical performance. V22ZA1P is supplied in bulk packaging by Littelfuse; B72207S0140K211 is supplied in cut tape by EPCOS/TDK Electronics. Operating temperature ranges differ slightly: V22ZA1P operates -55°C to 85°C, while B72207S0140K211 operates -40°C to 105°C.

Q: Why does ERZ-V07D220 have a different package size?

A: ERZ-V07D220 uses a Disc 8.5mm package compared to the standard 7mm. This larger package accommodates a higher surge current rating (500 A versus 250 A) and different internal construction. Board layout modification is required for this substitution.

Q: Are all substitutes ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant and REACH unaffected, matching the compliance profile of the original ROV07-220L-S.

Q: Which substitute has the lowest energy rating?

A: V22ZA1P and B72207S0140K211 both have 0.9 J energy ratings, lower than the original part's 1.4 J. These are suitable for applications where the original energy specification exceeds system requirements.

Q: Can I use VDRS07B014TSE as a drop-in replacement?

A: No. VDRS07B014TSE uses a Disc 9mm package, requiring PCB layout modification. However, it provides the highest energy absorption (1.7 J) among all listed substitutes.

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