V82ZT2 Equivalent & Substitute Parts

Part Overview

The V82ZT2 is an 82 V, 1.2 kA Varistor manufactured by Littelfuse Inc., designed for transient voltage suppression in single-circuit through-hole applications. This component operates across a temperature range of -55°C to 85°C and is housed in a 7mm disc package. The V82ZT2 is classified as obsolete, making identification of active equivalent parts essential for ongoing design support and procurement continuity.

Key Parameters

Parameter	Value
Varistor Voltage (Typical)	82 V
Varistor Voltage Range	73.8 V (Min) – 90.2 V (Max)
Current - Surge	1.2 kA
Energy Absorption	4 J
Maximum DC Volts	68 V
Maximum AC Volts	50 V
Operating Temperature Range	-55°C to 85°C
Capacitance @ 1 MHz	910 pF
Number of Circuits	1
Mounting Type	Through Hole
Package / Case	Disc 7mm
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the V82ZT2 is determined by strict equivalence across electrical and mechanical parameters. The following criteria define valid substitutes:

Electrical Parameters (Must Match):

Varistor voltage nominal rating: 82 V
Varistor voltage tolerance range: 73.8 V to 90.2 V
Surge current capacity: 1.2 kA
Energy absorption: 4 J
Maximum DC voltage: 68 V
Maximum AC voltage: 50 V
Capacitance @ 1 MHz: 910 pF

Mechanical Parameters (Must Match):

Mounting type: Through Hole
Package / Case: Disc 7mm
Number of circuits: 1
Operating temperature range: -55°C to 85°C

Compliance Parameters (Must Match):

RoHS3 Compliant
Moisture Sensitivity Level: 1

The substitute parts V82ZT2P and V82ZT2PX2855 meet all electrical, mechanical, and compliance requirements. The primary distinction between these parts and the main part is packaging format (Tape & Reel versus bulk) and product status (Active versus Obsolete).

Parameter Comparison

Parameter	V82ZT2	V82ZT2P	V82ZT2PX2855
Manufacturer	Littelfuse Inc.	Littelfuse Inc.	Littelfuse Inc.
Category	Transient Voltage Suppressors (TVS)	Transient Voltage Suppressors (TVS)	Transient Voltage Suppressors (TVS)
Series	ZT	ZT	ZT
Varistor Voltage (Typ)	82 V	82 V	82 V
Varistor Voltage (Min)	73.8 V	73.8 V	73.8 V
Varistor Voltage (Max)	90.2 V	90.2 V	90.2 V
Current - Surge	1.2 kA	1.2 kA	1.2 kA
Energy	4 J	4 J	4 J
Number of Circuits	1	1	1
Capacitance @ 1 MHz	910 pF	910 pF	910 pF
Maximum AC Volts	50 V	50 V	50 V
Maximum DC Volts	68 V	68 V	68 V
Operating Temperature	-55°C ~ 85°C	-55°C ~ 85°C	-55°C ~ 85°C
Mounting Type	Through Hole	Through Hole	Through Hole
Package / Case	Disc 7mm	Disc 7mm	Disc 7mm
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Obsolete	Active	Active
Packaging Format	Bulk	Tape & Reel (TR)	Tape & Reel (TR)

Engineering Selection Recommendations

Both V82ZT2P and V82ZT2PX2855 are direct parametric equivalents to the obsolete V82ZT2. Selection between these active alternatives is based on procurement and assembly requirements:

V82ZT2P is suitable for applications requiring standard tape and reel packaging with active product status and REACH Unaffected compliance.

V82ZT2PX2855 is suitable for applications requiring tape and reel packaging with active product status and REACH Unaffected compliance.

Both parts maintain full electrical and mechanical compatibility with the original V82ZT2 specification. The transition from obsolete to active status ensures long-term supply chain availability and continued manufacturer support.

Frequently Asked Questions (FAQ)

Q: Can V82ZT2P or V82ZT2PX2855 be used as direct replacements for V82ZT2?

A: Yes. Both parts are parametric equivalents with identical electrical characteristics (82 V nominal varistor voltage, 1.2 kA surge current, 4 J energy absorption), mechanical specifications (through-hole mounting, 7mm disc package), and compliance certifications (ROHS3 Compliant, MSL 1). The primary differences are product status (Active versus Obsolete) and packaging format (Tape & Reel).

Q: What is the difference between V82ZT2P and V82ZT2PX2855?

A: Both parts are electrically and mechanically identical. Both are supplied in Tape & Reel packaging and maintain active product status. Selection between them depends on specific procurement and assembly line requirements.

Q: Are there any compatibility concerns when substituting V82ZT2 with V82ZT2P or V82ZT2PX2855?

A: No compatibility concerns exist. All three parts share identical through-hole mounting specifications, 7mm disc package dimensions, and electrical performance parameters. PCB layout and assembly procedures require no modification.

Q: What is the operating temperature range for these varistors?

A: All three parts operate across -55°C to 85°C ambient temperature range, suitable for industrial and commercial applications.

Q: Are these parts RoHS compliant?

A: Yes. V82ZT2, V82ZT2P, and V82ZT2PX2855 are all ROHS3 Compliant with Moisture Sensitivity Level 1 (Unlimited).

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