ROV14-101K-2 Equivalent & Substitute Parts

Part Overview

The ROV14-101K-2 is a 100 V, 4.5 kA Transient Voltage Suppressor (TVS) varistor manufactured by Littelfuse, designed for through-hole mounting in a 14mm disc package. This component is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement continuity. The part provides transient voltage suppression across a single circuit with rated energy dissipation of 28J and operates across a temperature range of -40°C to 125°C.

Substiute Parts

ROV14-101K-2

LittelfuseIn Stock: 919ROV14-101K-2 Datasheet

Current PartRFQ

B72214S0600K551

EPCOS - TDK ElectronicsIn Stock: 1675B72214S0600K551 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ROV14-101K-2 is determined by the following critical parameters:

• Maximum AC Volts: 60 V
• Maximum DC Volts: 85 V
• Varistor Voltage (Typ): 100 V
• Current - Surge: 4.5 kA
• Number of Circuits: 1
• Mounting Type: Through Hole
• Package / Case: Disc 14mm

The substitute part B72214S0600K551 (EPCOS - TDK Electronics) maintains electrical equivalence across all primary suppression parameters: identical maximum voltage ratings, surge current capacity, circuit count, and physical package dimensions. Both parts are RoHS3 compliant and rated for through-hole mounting in identical form factors.

Parameter Comparison

Engineering Selection Recommendations

The B72214S0600K551 serves as a direct electrical substitute for the obsolete ROV14-101K-2. Both components meet identical voltage suppression and surge current specifications. The substitute part is currently in active production status, ensuring long-term availability and supply chain continuity.

Design considerations for substitution:

The B72214S0600K551 operates to a maximum temperature of 105°C, compared to the original part's 125°C rating. Applications requiring operation above 105°C ambient temperature require thermal analysis to confirm suitability.

The capacitance differential (2221 pF vs. 1650 pF at 1 kHz) may affect high-frequency circuit behavior. Circuit designs sensitive to varistor capacitance should be evaluated for compatibility.

Both parts maintain ROHS3 compliance and identical mechanical form factors, enabling direct board-level substitution without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can B72214S0600K551 replace ROV14-101K-2 in all applications?

A: The substitute part matches all critical electrical parameters: voltage ratings, surge current capacity, and circuit configuration. Physical compatibility is confirmed through identical disc 14mm packaging and through-hole mounting. Applications operating above 105°C ambient temperature require thermal evaluation.

Q: What is the difference in capacitance between these parts?

A: The ROV14-101K-2 has 2221 pF capacitance at 1 kHz, while the B72214S0600K551 has 1650 pF. This difference may impact circuits with frequency-dependent impedance requirements. High-frequency circuit designs should be analyzed for compatibility.

Q: Are both parts RoHS compliant?

A: Yes, both the ROV14-101K-2 and B72214S0600K551 are ROHS3 compliant.

Q: What is the maximum operating temperature for each part?

A: The ROV14-101K-2 operates from -40°C to 125°C. The B72214S0600K551 operates from -40°C to 105°C. Applications requiring operation above 105°C must use the original part or identify alternative solutions.

Q: Are there packaging differences between these parts?

A: Both parts use identical through-hole disc 14mm packaging. The B72214S0600K551 is supplied in cut tape (CT) packaging format, while the original part packaging format is not specified. This does not affect electrical or mechanical compatibility.