V82ZT2P Equivalent & Substitute Parts

Part Overview

The V82ZT2P is a 82V 1.2kA disc varistor manufactured by Littelfuse Inc., designed for transient voltage suppression applications. This through-hole component operates across a temperature range of -55°C to 85°C and is ROHS3 compliant. The part is currently active in production with 938 units in stock. Substitute parts are identified when electrical specifications, mechanical form factor, and compliance certifications align with the original component's operational requirements.

Key Parameters

Parameter	Value
Varistor Voltage (Typ)	82 V
Current - Surge	1.2 kA
Maximum AC Volts	50 V
Maximum DC Volts	68 V
Energy	4 J
Number of Circuits	1
Package / Case	Disc 7mm
Mounting Type	Through Hole
Operating Temperature	-55°C ~ 85°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the V82ZT2P is determined by the following critical parameters:

Varistor voltage rating: 82V nominal (73.8V minimum to 90.2V maximum)
Surge current capacity: 1.2 kA
Package form factor: Disc 7mm through-hole
Number of circuits: Single circuit (1)
Compliance: ROHS3 and REACH unaffected status
Maximum AC/DC voltage ratings within acceptable operational limits

The substitute part B72207S0500K111 meets these criteria across all electrical and mechanical specifications, with differences limited to packaging format (Cut Tape vs. Tape & Reel), operating temperature range extension, and minor variations in energy rating and capacitance measurement frequency.

Parameter Comparison

Parameter	V82ZT2P (Littelfuse)	B72207S0500K111 (EPCOS - TDK)
Manufacturer	Littelfuse Inc.	EPCOS - TDK Electronics
Varistor Voltage (Min)	73.8 V	73.8 V
Varistor Voltage (Typ)	82 V	82 V
Varistor Voltage (Max)	90.2 V	90.2 V
Current - Surge	1.2 kA	1.2 kA
Maximum AC Volts	50 V	50 V
Maximum DC Volts	68 V	65 V
Energy	4 J	4.2 J
Number of Circuits	1	1
Package / Case	Disc 7mm	Disc 7mm
Mounting Type	Through Hole	Through Hole
Operating Temperature	-55°C ~ 85°C	-40°C ~ 105°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected
Packaging Format	Tape & Reel (TR)	Cut Tape (CT)

Engineering Selection Recommendations

Both the V82ZT2P and B72207S0500K111 are active production components with ROHS3 compliance and REACH unaffected status, qualifying them for equivalent use in transient voltage suppression circuits. The electrical specifications—varistor voltage, surge current capacity, and energy rating—are functionally equivalent across both parts.

Selection between these components should consider:

Maximum DC voltage rating: The V82ZT2P specifies 68V maximum DC, while the B72207S0500K111 specifies 65V maximum DC. Applications requiring operation at voltages between 65V and 68V DC must use the V82ZT2P.
Operating temperature range: The B72207S0500K111 extends the upper operating limit to 105°C compared to the V82ZT2P at 85°C. Applications in elevated temperature environments benefit from the EPCOS part.
Packaging logistics: The V82ZT2P is supplied in Tape & Reel format with 938 units in stock, while the B72207S0500K111 is supplied in Cut Tape format with 4601 units available.

Frequently Asked Questions (FAQ)

Q: Can B72207S0500K111 replace V82ZT2P in all applications?

A: The B72207S0500K111 is electrically equivalent for varistor voltage, surge current, and energy specifications. However, the maximum DC voltage rating differs (65V vs. 68V). Circuits operating above 65V DC require the V82ZT2P.

Q: What is the difference between Tape & Reel and Cut Tape packaging?

A: Tape & Reel (TR) packaging supplies components on continuous tape wound on reels, suitable for automated assembly lines. Cut Tape (CT) packaging provides components on tape segments cut to specified lengths, typically for manual assembly or smaller production runs. Both formats contain identical components.

Q: Are both parts suitable for high-temperature applications?

A: The V82ZT2P operates to 85°C maximum ambient temperature. The B72207S0500K111 extends this to 105°C. For applications exceeding 85°C ambient temperature, the B72207S0500K111 is the appropriate selection.

Q: Do both parts meet current environmental compliance standards?

A: Yes. Both the V82ZT2P and B72207S0500K111 are ROHS3 compliant and REACH unaffected, meeting current environmental regulations for electronic components.

Q: What determines substitution eligibility for varistors?

A: Substitution is valid when the following parameters match or exceed the original specification: varistor voltage rating (minimum, typical, and maximum values), surge current capacity, package form factor, number of circuits, and compliance certifications. Minor variations in energy rating and capacitance are acceptable when other parameters align.

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