ROV14-220L Equivalent & Substitute Parts

Part Overview

The ROV14-220L 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, making equivalent substitute parts necessary for new designs and ongoing production requirements. The part provides transient voltage suppression across a single circuit with a nominal varistor voltage of 22 V and surge current rating of 1 kA.

Substiute Parts

ROV14-220L

Littelfuse Inc.In Stock: 789ROV14-220L Datasheet

Current PartRFQ

V22RA16

Littelfuse Inc.In Stock: 1433V22RA16 Datasheet

MFR RecommendedRFQ

V22RA16X2749

Littelfuse Inc.In Stock: 842V22RA16X2749 Datasheet

MFR RecommendedRFQ

B72214S0140K551

EPCOS - TDK ElectronicsIn Stock: 1202B72214S0140K551 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the ROV14-220L is determined by the following critical electrical and mechanical parameters:

• Varistor voltage rating: 22 V nominal (acceptable range 19.8 V to 25.3 V minimum to maximum)
• Surge current capacity: 1 kA minimum
• Maximum DC voltage: 18 V
• Maximum AC voltage: 14 V
• Number of circuits: 1
• Mounting type: Through Hole
• RoHS3 compliance

The substitute parts identified maintain these core electrical specifications. Two substitute categories exist: Littelfuse radial box variants (V22RA16 and V22RA16X2749) and the EPCOS TDK Electronics disc variant (B72214S0140K551). All substitutes meet the voltage suppression requirements and surge current rating while maintaining through-hole mounting compatibility.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts are active products with ROHS3 compliance, making them suitable for new designs and production continuity. The choice between substitutes depends on application-specific requirements:

V22RA16 and V22RA16X2749 are functionally identical Littelfuse radial box variants with extended operating temperature range (-55°C to 125°C) and significantly higher energy rating (50 J). These parts provide superior thermal performance and energy absorption capacity compared to the original ROV14-220L. The radial package configuration differs mechanically from the original disc package, requiring PCB layout modification.

B72214S0140K551 is an EPCOS TDK Electronics alternative maintaining the original disc 14mm package geometry, enabling direct mechanical substitution without PCB redesign. This part operates within a narrower temperature range (-40°C to 105°C) and has lower energy rating (4 J) compared to the Littelfuse radial variants. The operating temperature maximum of 105°C is 20°C lower than the original specification.

Frequently Asked Questions (FAQ)

Q: Can V22RA16 or V22RA16X2749 be used as direct replacements for ROV14-220L?

A: Both parts meet all electrical specifications (22 V nominal, 1 kA surge current, 18 V DC maximum, 14 V AC maximum). However, the radial box package differs mechanically from the original disc 14mm package, requiring PCB layout modification for component placement and lead routing.

Q: What is the difference between V22RA16 and V22RA16X2749?

A: Both parts are electrically and mechanically identical 22 V, 1 kA radial box varistors from Littelfuse Inc. They share the same electrical parameters, operating temperature range, and energy rating. The part numbers differ due to manufacturer internal designation or packaging configuration tracking.

Q: Is B72214S0140K551 a direct mechanical replacement?

A: Yes. B72214S0140K551 maintains the through-hole disc 14mm package configuration of the original ROV14-220L, allowing direct PCB substitution without layout modification. All electrical parameters (22 V nominal, 1 kA surge current) are equivalent.

Q: What are the temperature operating differences?

A: ROV14-220L operates from -40°C to 125°C. V22RA16 and V22RA16X2749 extend the lower limit to -55°C, providing 15°C additional cold-temperature margin. B72214S0140K551 reduces the upper limit to 105°C, providing 20°C less high-temperature margin than the original specification.

Q: Which substitute has the highest energy rating?

A: V22RA16 and V22RA16X2749 both provide 50 J energy rating, compared to 5.4 J for ROV14-220L and 4 J for B72214S0140K551. The higher energy rating indicates greater transient suppression capacity.

Q: Are all substitutes RoHS3 compliant?

A: Yes. ROV14-220L, V22RA16, V22RA16X2749, and B72214S0140K551 are all ROHS3 compliant, meeting environmental and hazardous substance restrictions.