Littelfuse V8ZT2 Varistor 8.5V 250A Disc 10mm Equivalent & Substitute Parts

Part Overview

The Littelfuse V8ZT2 is an 8.5 V 250 A varistor in a through-hole disc 10mm package, designed for transient voltage suppression in single-circuit applications. The V8ZT2 is classified as obsolete product status. Direct manufacturer equivalents and parametric alternatives are available to maintain design continuity and ensure supply chain reliability for applications requiring 8.5 V varistor voltage protection with 250 A surge current capacity.

Substiute Parts

V8ZT2

Littelfuse Inc.In Stock: 917V8ZT2 Datasheet

Current PartRFQ

V8ZT2P

Littelfuse Inc.In Stock: 2173V8ZT2P Datasheet

DirectRFQ

V8ZS2P

Littelfuse Inc.In Stock: 1125V8ZS2P Datasheet

Parametric EquivalentRFQ

V8ZS2PX2855

Littelfuse Inc.In Stock: 772V8ZS2PX2855 Datasheet

Parametric EquivalentRFQ

V8ZT2PX2855

Littelfuse Inc.In Stock: 910V8ZT2PX2855 Datasheet

Parametric EquivalentRFQ

V8ZU2P

Littelfuse Inc.In Stock: 891V8ZU2P Datasheet

Parametric EquivalentRFQ

V8ZU2PX2855

Littelfuse Inc.In Stock: 1133V8ZU2PX2855 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the V8ZT2 are classified into two categories based on substitution type:

Direct Manufacturer Equivalent (Packaging Variant):

• V8ZT2P: Identical electrical specifications and series designation (ZT) as the main part, with tape and reel packaging instead of bulk packaging. Maintains full parametric compatibility.

Parametric Equivalents (Series Variants):

• V8ZS2P, V8ZS2PX2855: Series ZS variants with identical electrical parameters (8.5 V typical varistor voltage, 250 A surge current, 0.8 J energy, 7000 pF capacitance, -55°C to 85°C operating range).
• V8ZT2PX2855: Series ZT variant with tape and reel packaging and identical electrical specifications.
• V8ZU2P, V8ZU2PX2855: Series ZU variants with identical electrical parameters and through-hole disc 10mm package configuration.

All substitute parts maintain the following critical parameters:

• Varistor voltage range: 6 V (Min) to 11 V (Max), with 8.5 V typical
• Surge current: 250 A
• Energy dissipation: 0.8 J
• Capacitance: 7000 pF @ 1 MHz
• Operating temperature: -55°C to 85°C
• Package: Disc 10mm through-hole
• Single circuit configuration

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed maintain full electrical and mechanical compatibility with the V8ZT2 across the specified parameter range. Selection should prioritize active product status parts to ensure long-term supply availability.

V8ZT2P is the primary direct equivalent, maintaining identical series designation (ZT) and electrical specifications with active product status and higher inventory availability (2100 pcs).

Series variants V8ZS2P, V8ZS2PX2855, V8ZU2P, and V8ZU2PX2855 provide parametric equivalence with active product status. These parts are suitable for applications where series designation is not a design constraint.

V8ZT2PX2855 maintains series continuity (ZT) with active status and tape and reel packaging, supporting automated assembly processes.

All substitute parts comply with ROHS3 and carry REACH Unaffected status, meeting current regulatory requirements for electronic component procurement.

Frequently Asked Questions (FAQ)

Q: Can V8ZT2P be used as a direct replacement for V8ZT2? A: Yes. V8ZT2P is a direct manufacturer equivalent with identical electrical parameters, series designation, and package configuration. The primary difference is packaging format (tape and reel versus bulk). Both parts maintain 8.5 V typical varistor voltage, 250 A surge current capacity, and -55°C to 85°C operating temperature range.

Q: What is the difference between series variants (ZT, ZS, ZU)? A: Series variants represent different product lines within the Littelfuse varistor portfolio. All listed variants (ZT, ZS, ZU) maintain identical electrical specifications for this application: 8.5 V varistor voltage, 250 A surge current, 0.8 J energy, and 7000 pF capacitance. Series designation does not affect electrical performance for these parts.

Q: Are the X2855 suffix parts equivalent to non-X2855 parts? A: Yes. The X2855 suffix indicates a specific manufacturing or packaging variant. Parts with and without this suffix (e.g., V8ZT2P versus V8ZT2PX2855) maintain identical electrical parameters and are functionally equivalent. Selection between them depends on packaging and supply chain requirements.

Q: What packaging formats are available? A: The V8ZT2 original part uses bulk packaging. All active substitute parts are available in tape and reel (TR) format, which is standard for automated assembly processes. Both packaging formats contain identical components.

Q: Is the V8ZT2 still available? A: The V8ZT2 is classified as obsolete product status. Active equivalent parts (V8ZT2P, V8ZS2P, V8ZS2PX2855, V8ZT2PX2855, V8ZU2P, V8ZU2PX2855) are currently in production and available in stock.

Q: Do all substitute parts meet the same compliance standards? A: Yes. All substitute parts listed are ROHS3 compliant and carry REACH Unaffected status, meeting current regulatory requirements for electronic component procurement and use in regulated markets.

Q: Can I mix different series variants in the same circuit board assembly? A: Yes. All listed variants maintain identical electrical specifications (8.5 V varistor voltage, 250 A surge current, 0.8 J energy, 7000 pF capacitance, -55°C to 85°C operating range) and package configuration (disc 10mm through-hole). Series designation does not affect electrical performance or interchangeability for this application.