ROV07-151K-S Equivalent & Substitute Parts

Part Overview

The ROV07-151K-S is a 150 V, 1.2 kA disc varistor manufactured by Littelfuse Inc., designed for transient voltage suppression in through-hole applications. This component is classified as obsolete, making equivalent substitutes necessary for ongoing design support and procurement. The part operates across a temperature range of -40°C to 125°C and meets ROHS3 compliance requirements. Substitute parts must maintain electrical equivalence in voltage rating, surge current capacity, and thermal characteristics while accommodating packaging and availability constraints.

Substiute Parts

ROV07-151K-S

Littelfuse Inc.In Stock: 1172ROV07-151K-S Datasheet

Current PartRFQ

MOV-07D151K

Bourns Inc.In Stock: 25309MOV-07D151K Datasheet

MFR RecommendedRFQ

MOV-07D151KTR

Bourns Inc.In Stock: 1005MOV-07D151KTR Datasheet

MFR RecommendedRFQ

VDRS07H095BSE

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 761VDRS07H095BSE Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ROV07-151K-S is determined by the following electrical and mechanical parameters:

Primary Equivalence Criteria:

• Varistor voltage rating: 135 V minimum to 165 V maximum (150 V typical)
• Surge current capacity: 1.2 kA
• Maximum AC voltage: 95 V
• Maximum DC voltage: 125 V
• Mounting type: Through Hole
• Number of circuits: 1
• RoHS compliance: ROHS3 Compliant

Secondary Considerations:

• Operating temperature range (minimum -40°C, maximum ≥85°C)
• Package form factor (Disc configuration)
• Energy rating and capacitance characteristics

The substitute parts listed below meet all primary equivalence criteria. Variations in package diameter (7mm vs. 9mm), energy rating, and maximum operating temperature are noted but do not preclude functional substitution when circuit requirements are satisfied.

Parameter Comparison

Engineering Selection Recommendations

MOV-07D151K (Bourns Inc.) - Bulk Packaging

This part is electrically equivalent to the ROV07-151K-S across all primary parameters. The component is in active production status, ensuring long-term availability. It maintains ROHS3 compliance and operates within the required voltage and current specifications. The maximum operating temperature of 85°C is lower than the original part; applications requiring operation above 85°C must be evaluated against actual circuit thermal conditions. Bulk packaging is suitable for standard procurement workflows.

MOV-07D151KTR (Bourns Inc.) - Tape & Reel Packaging

This part is electrically identical to MOV-07D151K and differs only in packaging format (Tape & Reel). It is recommended for automated assembly processes and high-volume production. Active product status and ROHS3 compliance are maintained. The same thermal operating range limitation (maximum 85°C) applies.

VDRS07H095BSE (Vishay Beyschlag/Draloric/BC Components)

This part meets all primary electrical equivalence criteria with identical voltage ratings and surge current capacity. The package diameter is 9mm compared to the 7mm form factor of the original part; PCB layout modifications may be required to accommodate the larger disc size. The energy rating is higher at 13 J, and capacitance is increased to 450 pF at 1 kHz. Active product status and ROHS3 compliance are confirmed. Maximum operating temperature is 85°C. This substitute is suitable when PCB space permits the larger package footprint.

Frequently Asked Questions (FAQ)

Q: Can MOV-07D151K be used as a direct replacement for ROV07-151K-S?

A: Yes. Both parts share identical varistor voltage ratings (150 V typical), surge current capacity (1.2 kA), maximum AC/DC voltage limits, and mounting type. The primary difference is the maximum operating temperature: MOV-07D151K is rated to 85°C versus 125°C for the original part. If your application operates within the 85°C limit, this part is functionally equivalent.

Q: What is the difference between MOV-07D151K and MOV-07D151KTR?

A: These parts are electrically identical. The difference is packaging: MOV-07D151K is supplied in bulk, while MOV-07D151KTR is supplied in Tape & Reel format. Select based on your assembly process requirements. Tape & Reel is preferred for automated pick-and-place assembly.

Q: Why is VDRS07H095BSE listed as a substitute if the package size is different?

A: VDRS07H095BSE meets all electrical equivalence criteria and is functionally interchangeable. The 9mm disc diameter is larger than the 7mm original package. This substitute is valid if your PCB layout can accommodate the larger footprint. Verify clearance around the component mounting location before design implementation.

Q: Does the lower maximum operating temperature of Bourns substitutes affect my design?

A: The Bourns parts (MOV-07D151K and MOV-07D151KTR) are rated to 85°C maximum ambient temperature, compared to 125°C for the original Littelfuse part. Evaluate your circuit's actual operating temperature. If your application operates below 85°C ambient, these substitutes are suitable. If sustained operation above 85°C is required, the Vishay VDRS07H095BSE or alternative sources must be considered.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed substitutes are ROHS3 compliant, matching the compliance status of the original ROV07-151K-S.

Q: Can I use these parts interchangeably in my existing designs?

A: All substitute parts maintain the same through-hole mounting type and electrical specifications. Verify PCB footprint compatibility, particularly for VDRS07H095BSE due to its 9mm package diameter. No circuit redesign is required for electrical substitution when operating temperature limits are observed.