ROV14-220L-S Equivalent & Substitute Parts

Part Overview

The ROV14-220L-S is a 22 V, 1 kA Transient Voltage Suppressor (TVS) varistor manufactured by Littelfuse Inc. in a through-hole disc 14mm package. This component is classified as obsolete, though 895 units remain in stock. The part is ROHS3 compliant and suitable for transient voltage protection applications requiring single-circuit suppression.

Due to the obsolete status of the ROV14-220L-S, equivalent and substitute parts are necessary for new designs, long-term availability assurance, and procurement flexibility. Active alternatives with comparable electrical and mechanical specifications are available from Littelfuse Inc., EPCOS - TDK Electronics, Panasonic Electronic Components, and Vishay Beyschlag/Draloric/BC Components.

Key Parameters

Parameter	ROV14-220L-S
Varistor Voltage (Typ)	22 V
Current - Surge	1 kA
Maximum AC Volts	14 V
Maximum DC Volts	18 V
Energy	5.4 J
Number of Circuits	1
Operating Temperature Range	-40°C ~ 125°C
Mounting Type	Through Hole
Package / Case	Disc 14mm
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the ROV14-220L-S is determined by the following critical parameters:

Varistor Voltage (Typ): 22 V nominal
Current - Surge: 1 kA minimum
Maximum AC Volts: 14 V
Maximum DC Volts: 18 V
Number of Circuits: 1
Mounting Type: Through Hole
RoHS Status: ROHS3 Compliant

Substitute parts must maintain electrical equivalence within the varistor voltage range (19.8 V to 25.3 V minimum), support 1 kA surge current or higher, and operate within the specified voltage and temperature constraints. Package form factor (disc diameter) and energy rating may vary within acceptable mechanical and thermal limits. All substitutes listed are active products with current manufacturing status and full compliance certifications.

Parameter Comparison

Part Number	Manufacturer	Varistor Voltage (Typ)	Current - Surge	Max AC Volts	Max DC Volts	Energy	Operating Temp Range	Package / Case	Product Status
ROV14-220L-S	Littelfuse Inc.	22 V	1 kA	14 V	18 V	5.4 J	-40°C ~ 125°C	Disc 14mm	Obsolete
V22RA16	Littelfuse Inc.	22 V	1 kA	14 V	18 V	50 J	-55°C ~ 125°C	Radial, Box	Active
V22RA16X2749	Littelfuse Inc.	22 V	1 kA	14 V	18 V	50 J	-55°C ~ 125°C	Radial, Box	Active
V22ZA3P	Littelfuse Inc.	22 V	1 kA	14 V	18 V	4 J	-55°C ~ 85°C	Disc 14mm	Active
B72214S0140K151	EPCOS - TDK Electronics	22 V	1 kA	14 V	18 V	4 J	-40°C ~ 105°C	Disc 14mm	Active
ERZ-V14D220	Panasonic Electronic Components	22 V	2 kA	14 V	18 V	6.3 J	-40°C ~ 85°C	Disc 15.5mm	Active
VDRS14G014TSE	Vishay Beyschlag/Draloric/BC Components	22 V	1 kA	14 V	18 V	5.4 J	-40°C ~ 85°C	Disc 16mm	Active

Engineering Selection Recommendations

All listed substitute parts are ROHS3 compliant and REACH unaffected, matching the compliance profile of the ROV14-220L-S. Selection among active alternatives should be based on the following criteria:

Littelfuse Inc. V22ZA3P provides the closest electrical and mechanical match to the original part, maintaining the disc 14mm package form factor and 1 kA surge current rating. This part is active and recommended for direct replacement in existing designs where package geometry is constrained.

EPCOS - TDK Electronics B72214S0140K151 offers identical disc 14mm packaging and electrical specifications with an operating temperature range of -40°C to 105°C, suitable for applications where the upper temperature limit of 125°C is not required.

Vishay Beyschlag VDRS14G014TSE maintains the 1 kA surge current and 5.4 J energy rating of the original part but uses a slightly larger disc 16mm package. This part is suitable for applications with flexible mechanical constraints.

Littelfuse Inc. V22RA16 and V22RA16X2749 provide radial through-hole configuration with enhanced energy rating (50 J) and extended temperature range (-55°C to 125°C). These parts are suitable for applications requiring higher thermal performance or different PCB layout requirements.

Panasonic Electronic Components ERZ-V14D220 offers increased surge current capacity (2 kA) with comparable energy and voltage specifications, suitable for applications requiring enhanced transient protection margin.

Frequently Asked Questions (FAQ)

Q: Can V22ZA3P directly replace ROV14-220L-S in existing PCB designs?

A: Yes. V22ZA3P maintains identical disc 14mm package geometry, 22 V nominal varistor voltage, 1 kA surge current, and through-hole mounting. Both parts are ROHS3 compliant. No PCB layout modifications are required.

Q: What is the difference between the radial (V22RA16) and disc (V22ZA3P) package options?

A: Radial packages (V22RA16, V22RA16X2749) feature two leads extending from the same end of the component, suitable for vertical PCB mounting. Disc packages (V22ZA3P, B72214S0140K151, VDRS14G014TSE) feature leads on opposite ends, suitable for horizontal mounting. Electrical performance is equivalent; selection depends on PCB layout requirements.

Q: Why does ERZ-V14D220 have a 2 kA surge current rating instead of 1 kA?

A: ERZ-V14D220 is rated for 2 kA surge current, providing higher transient protection capacity than the 1 kA specification of ROV14-220L-S. This part is electrically compatible and suitable for applications where enhanced surge protection is beneficial or required.

Q: Are all substitute parts available in the same packaging formats?

A: No. V22RA16 and V22RA16X2749 are supplied in radial, box configuration. V22ZA3P, B72214S0140K151, and VDRS14G014TSE are supplied in disc configurations with varying diameters (14mm, 14mm, and 16mm respectively). ERZ-V14D220 uses a 15.5mm disc package. Verify packaging compatibility with your procurement and assembly requirements.

Q: What is the operating temperature difference between ROV14-220L-S and V22ZA3P?

A: ROV14-220L-S operates from -40°C to 125°C. V22ZA3P operates from -55°C to 85°C. V22ZA3P provides lower temperature operation but has a reduced upper temperature limit. Select based on your application's thermal environment.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant and REACH unaffected, matching the regulatory compliance of the original ROV14-220L-S.

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