Littelfuse V36ZS80 Equivalent & Substitute Parts

Part Overview

The Littelfuse V36ZS80 is a 36 V, 2 kA disc varistor designed for transient voltage suppression in through-hole applications. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing production and maintenance requirements. The substitute parts listed maintain identical electrical and mechanical specifications while offering active product status and improved availability.

Key Parameters

Parameter	Value
Varistor Voltage (Typical)	36 V
Current - Surge	2 kA
Maximum AC Volts	23 V
Maximum DC Volts	28 V
Energy	160 J
Capacitance @ 1 MHz	12000 pF
Operating Temperature Range	-55°C to 85°C
Mounting Type	Through Hole
Package / Case	Disc 20mm
Number of Circuits	1
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the V36ZS80 is determined by strict parametric equivalence across all electrical and mechanical characteristics. The following criteria define acceptable substitutes:

Mandatory Matching Parameters:

Varistor Voltage (Min/Typ/Max): 32.4 V / 36 V / 39.6 V
Current - Surge: 2 kA
Maximum AC Volts: 23 V
Maximum DC Volts: 28 V
Energy: 160 J
Capacitance @ 1 MHz: 12000 pF
Operating Temperature Range: -55°C to 85°C
Mounting Type: Through Hole
Package / Case: Disc 20mm
Number of Circuits: 1
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)

All listed substitute parts meet these requirements. Variations in packaging format (bulk versus Tape & Reel) and series designation (ZS, ZT, ZU) do not affect electrical performance or mechanical compatibility.

Parameter Comparison

Part Number	Manufacturer	Series	Packaging	Product Status	Varistor Voltage (Typ)	Current - Surge	Energy	Operating Temp	RoHS Status
V36ZS80	Littelfuse	ZS	Bulk	Obsolete	36 V	2 kA	160 J	-55°C to 85°C	ROHS3 Compliant
V36ZS80P	Littelfuse	ZS	Tape & Reel (TR)	Active	36 V	2 kA	160 J	-55°C to 85°C	ROHS3 Compliant
V36ZS80PX10	Littelfuse Inc.	ZS	Tape & Reel (TR)	Active	36 V	2 kA	160 J	-55°C to 85°C	ROHS3 Compliant
V36ZS80PX2855	Littelfuse Inc.	ZS	Tape & Reel (TR)	Active	36 V	2 kA	160 J	-55°C to 85°C	ROHS3 Compliant
V36ZT80P	Littelfuse Inc.	ZT	Tape & Reel (TR)	Active	36 V	2 kA	160 J	-55°C to 85°C	ROHS3 Compliant
V36ZT80PX10	Littelfuse Inc.	ZT	Tape & Reel (TR)	Active	36 V	2 kA	160 J	-55°C to 85°C	ROHS3 Compliant
V36ZT80PX2855	Littelfuse Inc.	ZT	Tape & Reel (TR)	Active	36 V	2 kA	160 J	-55°C to 85°C	ROHS3 Compliant
V36ZU80P	Littelfuse Inc.	ZU	Tape & Reel (TR)	Active	36 V	2 kA	160 J	-55°C to 85°C	ROHS3 Compliant
V36ZU80PX10	Littelfuse Inc.	ZU	Tape & Reel (TR)	Active	36 V	2 kA	160 J	-55°C to 85°C	ROHS3 Compliant
V36ZU80PX2855	Littelfuse Inc.	ZU	Tape & Reel (TR)	Active	36 V	2 kA	160 J	-55°C to 85°C	ROHS3 Compliant

Engineering Selection Recommendations

All substitute parts listed are active products with ROHS3 compliance and REACH unaffected status, providing regulatory continuity for new designs and production transitions. The V36ZS80 obsolete status necessitates migration to one of the active equivalents.

For applications requiring bulk packaging, V36ZS80P is the direct series equivalent. For automated assembly processes, Tape & Reel packaged variants (V36ZS80PX10, V36ZS80PX2855) offer production efficiency. Series ZT and ZU variants provide identical electrical performance and mechanical compatibility while maintaining active product status.

Selection between packaging formats and series designations should be based on procurement requirements and assembly methodology rather than electrical performance, as all variants meet identical transient voltage suppression specifications.

Frequently Asked Questions (FAQ)

Q: Can V36ZS80 be directly replaced with V36ZS80P? A: Yes. V36ZS80P is the active equivalent with identical electrical specifications. The primary difference is packaging format: V36ZS80 is supplied in bulk, while V36ZS80P is supplied in Tape & Reel format.

Q: What is the difference between ZS, ZT, and ZU series variants? A: All three series (ZS, ZT, ZU) maintain identical electrical and mechanical parameters for the 36 V, 2 kA varistor specification. Series designation does not affect performance or compatibility in circuit applications.

Q: Are Tape & Reel packaged parts compatible with through-hole assembly? A: Yes. Tape & Reel packaging is a delivery format for automated assembly. The physical component remains a through-hole disc varistor with identical lead configuration and mounting characteristics.

Q: What does the PX10 and PX2855 suffix indicate? A: These suffixes denote packaging reel specifications and quantity configurations for Tape & Reel delivery. They do not affect component electrical performance or mechanical compatibility.

Q: Is REACH compliance maintained across all substitute parts? A: Yes. All substitute parts are REACH unaffected, maintaining regulatory compliance for European and global markets.

Q: Can these parts be used interchangeably in existing PCB designs? A: Yes. All substitute parts are mechanically and electrically equivalent with identical through-hole mounting specifications and disc 20mm package dimensions.

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