ROV14-151K Equivalent & Substitute Parts

Part Overview

The ROV14-151K is a 150V, 4.5kA varistor manufactured by Littelfuse Inc., designed for transient voltage suppression in through-hole disc configurations. This component is classified as obsolete, necessitating identification of active equivalent parts to maintain design continuity and ensure supply chain availability for new production and maintenance applications.

Substiute Parts

ROV14-151K

Littelfuse Inc.In Stock: 1091ROV14-151K Datasheet

Current PartRFQ

B72214S0950K551

EPCOS - TDK ElectronicsIn Stock: 998B72214S0950K551 Datasheet

MFR RecommendedRFQ

VDRS14T095BSE

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 1107VDRS14T095BSE Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ROV14-151K is determined by the following critical parameters:

• Varistor voltage rating (minimum 135V, typical 150V, maximum 165V)
• Surge current capacity (4.5 kA minimum)
• Maximum AC and DC voltage ratings (95V AC, 125V DC minimum)
• Through-hole mounting configuration
• Single circuit design
• RoHS3 compliance

The identified substitute parts meet these core electrical and mechanical requirements. Variations in secondary parameters such as energy absorption, capacitance, and operating temperature ranges reflect manufacturing differences between suppliers but do not affect functional equivalence within the specified application envelope.

Parameter Comparison

Engineering Selection Recommendations

Both B72214S0950K551 and VDRS14T095BSE are active products with current manufacturing support and full RoHS3 compliance. The B72214S0950K551 from EPCOS - TDK Electronics is the manufacturer-recommended substitute and maintains identical electrical specifications to the ROV14-151K. The VDRS14T095BSE from Vishay Beyschlag/Draloric/BC Components provides equivalent electrical performance and is available in bulk packaging.

Selection between these substitutes should be based on packaging requirements (Tape & Reel versus Bulk), inventory availability, and established supplier relationships. Both parts satisfy the core electrical and mechanical requirements for direct substitution in applications previously using the ROV14-151K.

Frequently Asked Questions (FAQ)

Q: Can B72214S0950K551 be used as a direct replacement for ROV14-151K?

A: Yes. Both parts share identical varistor voltage ratings (135V–165V), surge current capacity (4.5 kA), maximum AC/DC voltage ratings, and through-hole mounting configuration. The B72214S0950K551 is the manufacturer-recommended equivalent.

Q: What is the difference between the disc sizes (14mm vs. 16mm) in the substitute parts?

A: The ROV14-151K and B72214S0950K551 use 14mm disc packages, while the VDRS14T095BSE uses a 16mm disc package. Physical size differences may affect PCB layout and mounting hole spacing. Verify mechanical compatibility with your application before selection.

Q: Are there packaging differences between the substitute parts?

A: Yes. The B72214S0950K551 is supplied in Tape & Reel (TR) packaging, while the VDRS14T095BSE is supplied in Bulk packaging. Select based on your procurement and assembly requirements.

Q: Do the substitute parts have different operating temperature ranges?

A: The ROV14-151K operates from -40°C to 125°C. The B72214S0950K551 operates from -40°C to 105°C, and the VDRS14T095BSE operates from -40°C to 85°C. Verify that the selected substitute meets your application's thermal requirements.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. The ROV14-151K, B72214S0950K551, and VDRS14T095BSE are all ROHS3 compliant and REACH unaffected.