ROV14-181K-2 Equivalent & Substitute Parts

Part Overview

The ROV14-181K-2 is a 180 V, 4.5 kA varistor in a 14mm disc package designed for transient voltage suppression applications. This component is classified as obsolete, necessitating identification of active equivalent parts to maintain design continuity and ensure ongoing component availability for production and field replacement scenarios.

Key Parameters

Parameter	Value
Varistor Voltage (Typical)	180 V
Current - Surge	4.5 kA
Maximum DC Volts	150 V
Maximum AC Volts	115 V
Number of Circuits	1
Mounting Type	Through Hole
Package / Case	Disc 14mm
Operating Temperature Range	-40°C ~ 125°C

Substitute Part Grouping Explanation

Substitution eligibility for the ROV14-181K-2 is determined by the following critical parameters:

Varistor voltage rating (162 V minimum, 180 V typical, 198 V maximum)
Surge current capacity (4.5 kA)
Maximum DC voltage rating (150 V or higher)
Maximum AC voltage rating (115 V or higher)
Single circuit configuration
Through hole mounting in 14mm disc package
RoHS3 compliance and REACH unaffected status

Both identified substitute parts meet these criteria and are classified as active products, providing viable alternatives to the obsolete ROV14-181K-2.

Parameter Comparison

Parameter	ROV14-181K-2	V180ZA10P	B72214S0111K551
Manufacturer	Littelfuse Inc.	Littelfuse Inc.	EPCOS - TDK Electronics
Product Status	Obsolete	Active	Active
Varistor Voltage (Min)	162 V	162 V	162 V
Varistor Voltage (Typ)	180 V	180 V	180 V
Varistor Voltage (Max)	198 V	198 V	198 V
Current - Surge	4.5 kA	4.5 kA	4.5 kA
Maximum DC Volts	150 V	153 V	150 V
Maximum AC Volts	115 V	115 V	115 V
Number of Circuits	1	1	1
Mounting Type	Through Hole	Through Hole	Through Hole
Package / Case	Disc 14mm	Disc 14mm	Disc 14mm
Operating Temperature (Min)	-40°C	-55°C	-40°C
Operating Temperature (Max)	125°C	85°C	105°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected
Packaging	-	Bulk	Tape & Reel (TR)

Engineering Selection Recommendations

Both V180ZA10P and B72214S0111K551 are qualified substitutes for the obsolete ROV14-181K-2 based on electrical parameter equivalence and regulatory compliance.

V180ZA10P is manufactured by Littelfuse Inc., the original manufacturer of the ROV14-181K-2, and offers extended minimum operating temperature (-55°C) compared to the original specification. This part is supplied in bulk packaging.

B72214S0111K551 is manufactured by EPCOS - TDK Electronics and maintains the original operating temperature minimum of -40°C. This part is supplied in tape and reel packaging, suitable for automated assembly processes.

Both parts satisfy RoHS3 compliance and REACH unaffected status requirements. Selection between these substitutes should be based on procurement requirements, packaging format compatibility with assembly processes, and operating temperature range requirements for the specific application.

Frequently Asked Questions (FAQ)

Q: Can V180ZA10P and B72214S0111K551 be used interchangeably with ROV14-181K-2?

A: Both parts meet the electrical specifications of the ROV14-181K-2, including varistor voltage rating, surge current capacity, and voltage ratings. They are mechanically compatible through hole components in the same 14mm disc package. Selection should account for operating temperature range requirements and packaging format compatibility.

Q: What is the difference in operating temperature range between the substitutes?

A: V180ZA10P operates from -55°C to 85°C, while B72214S0111K551 operates from -40°C to 105°C. The original ROV14-181K-2 specification is -40°C to 125°C. Applications requiring operation above 105°C or below -55°C require evaluation against the specific substitute's temperature limits.

Q: Are there packaging differences between these parts?

A: V180ZA10P is supplied in bulk packaging, while B72214S0111K551 is supplied in tape and reel format. Tape and reel packaging is optimized for automated pick-and-place assembly, whereas bulk packaging is suitable for manual assembly or lower-volume applications.

Q: Do all substitute parts meet compliance requirements?

A: All parts listed are RoHS3 compliant and REACH unaffected, matching the compliance status of the original ROV14-181K-2.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message