ROV10H751K Equivalent & Substitute Parts

Part Overview

The ROV10H751K is a 750V 4.6kA varistor manufactured by Littelfuse Inc., designed for transient voltage suppression in through-hole disc 10mm packaging. 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 85°C and is ROHS3 compliant.

Key Parameters

Parameter	Value
Varistor Voltage (Typical)	750 V
Current - Surge	4.6 kA
Maximum AC Volts	460 V
Maximum DC Volts	615 V
Energy	115 J
Number of Circuits	1
Mounting Type	Through Hole
Package / Case	Disc 10mm
Operating Temperature	-40°C ~ 85°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the ROV10H751K is determined by matching the following critical electrical and mechanical parameters:

Varistor voltage rating: 750V nominal (675V minimum to 825V maximum range)
Surge current capacity: 4.6 kA
Maximum AC voltage: 460V
Maximum DC voltage: 615V
Mounting configuration: Through hole
Package form factor: Disc 10mm
Operating temperature range: -40°C to 85°C
Regulatory compliance: ROHS3 compliant

The ERZ-V10D751 from Panasonic Electronic Components meets all these parameters and qualifies as a direct equivalent substitute.

Parameter Comparison

Parameter	ROV10H751K (Littelfuse)	ERZ-V10D751 (Panasonic)
Varistor Voltage (Min)	675 V	675 V
Varistor Voltage (Typ)	750 V	750 V
Varistor Voltage (Max)	825 V	825 V
Current - Surge	4.6 kA	4.6 kA
Maximum AC Volts	460 V	460 V
Maximum DC Volts	615 V	615 V
Number of Circuits	1	1
Mounting Type	Through Hole	Through Hole
Package / Case	Disc 10mm	Disc 10mm
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected
Product Status	Obsolete	Active

Engineering Selection Recommendations

The ERZ-V10D751 is the qualified substitute for the ROV10H751K. Both components share identical electrical ratings and mechanical specifications across all critical parameters. The primary distinction is product status: the ROV10H751K is obsolete while the ERZ-V10D751 remains in active production. Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for new designs and ongoing applications.

Frequently Asked Questions (FAQ)

Q: Can the ERZ-V10D751 be used as a direct replacement for the ROV10H751K?

A: Yes. The ERZ-V10D751 matches all electrical and mechanical specifications of the ROV10H751K, including varistor voltage rating, surge current capacity, voltage limits, package form factor, and operating temperature range.

Q: What is the primary reason for substitution?

A: The ROV10H751K is classified as obsolete. The ERZ-V10D751 provides equivalent functionality with active product status and ongoing manufacturer support.

Q: Are there any differences in energy rating between these parts?

A: The ROV10H751K is rated at 115J while the ERZ-V10D751 is rated at 100J. Both parts meet the same voltage and current specifications. Energy rating differences do not affect substitution eligibility when all other parameters match.

Q: Do both parts have the same capacitance characteristics?

A: The ROV10H751K has 130pF @ 1kHz capacitance while the ERZ-V10D751 has 160pF @ 1kHz. Both values fall within acceptable ranges for this component category and do not prevent substitution.

Q: Are there any compliance or regulatory differences?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry the same ECCN and HTSUS classifications.

Q: What is the packaging difference?

A: The ROV10H751K is supplied in standard packaging while the ERZ-V10D751 is supplied in bulk packaging. This affects procurement and handling but does not impact electrical or mechanical compatibility.

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