V175LT2 Equivalent & Substitute Parts

Part Overview

The V175LT2 is a 270 V, 1.2 kA varistor manufactured by Littelfuse Inc., designed for transient voltage suppression in through-hole disc 7mm packaging. This component is classified as obsolete, which necessitates identification of active equivalent alternatives that maintain identical electrical and mechanical specifications for continued system support and new design implementations.

Substiute Parts

V175LT2

Littelfuse Inc.In Stock: 993V175LT2 Datasheet

Current PartRFQ

V175LT2P

Littelfuse Inc.In Stock: 3965V175LT2P Datasheet

DirectRFQ

V175LS2P

Littelfuse Inc.In Stock: 1006V175LS2P Datasheet

Parametric EquivalentRFQ

V175LS2PX2855

Littelfuse Inc.In Stock: 908V175LS2PX2855 Datasheet

Parametric EquivalentRFQ

V175LT2PX2855

Littelfuse Inc.In Stock: 1175V175LT2PX2855 Datasheet

Parametric EquivalentRFQ

V175LU2P

Littelfuse Inc.In Stock: 846V175LU2P Datasheet

Parametric EquivalentRFQ

V175LU2PX2855

Littelfuse Inc.In Stock: 976V175LU2PX2855 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the V175LT2 is determined by strict equivalence across all electrical parameters and mechanical form factor. The following criteria establish valid substitutes:

• Varistor voltage range: 243 V (Min) to 297 V (Max), with 270 V typical
• Surge current capacity: 1.2 kA
• Energy dissipation: 15 J
• Capacitance: 130 pF @ 1 MHz
• Operating temperature: -55°C to 85°C
• Mounting configuration: Through hole, disc 7mm package
• Compliance: ROHS3 compliant

All substitute parts listed maintain these exact specifications across different series designations (LT, LS, LU) and packaging configurations (standard tube or tape & reel with X2855 designation). Series variation and packaging format do not alter electrical performance or mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts are manufactured by Littelfuse Inc. and maintain active product status, ensuring continued availability and supply chain stability. Each substitute carries ROHS3 compliance certification and REACH unaffected status, meeting current regulatory requirements for electronic component procurement.

Selection between substitute options depends on assembly process requirements. Parts designated with "P" suffix in tape & reel packaging (V175LT2P, V175LS2P, V175LU2P) are suitable for automated pick-and-place assembly. Parts with X2855 designation indicate specific tape configuration parameters for high-speed automated equipment. Series variation (LT, LS, LU) does not affect electrical performance or mechanical fit; selection may be based on supplier availability and lead time.

For through-hole manual assembly or rework applications, any active substitute maintains mechanical and electrical compatibility with the original V175LT2 footprint and performance envelope.

Frequently Asked Questions (FAQ)

Q: Can V175LT2 be directly replaced with V175LT2P?

A: Yes. V175LT2P is the active equivalent of the obsolete V175LT2. Both maintain identical electrical specifications (270 V typical varistor voltage, 1.2 kA surge current, 15 J energy) and mechanical form factor (through-hole disc 7mm). The primary difference is packaging format: V175LT2P is supplied in tape & reel configuration for automated assembly, while the original V175LT2 was supplied in tube packaging.

Q: What is the difference between V175LT2P, V175LS2P, and V175LU2P?

A: These parts differ only in internal series designation (LT, LS, LU) and are parametric equivalents. All three maintain identical electrical performance: 270 V varistor voltage, 1.2 kA surge current, 15 J energy dissipation, and -55°C to 85°C operating temperature. Series variation does not affect circuit performance or mechanical compatibility. Selection is based on supplier availability.

Q: What does the X2855 suffix indicate?

A: The X2855 suffix specifies tape configuration parameters for automated assembly equipment. Parts with this designation (V175LS2PX2855, V175LT2PX2855, V175LU2PX2855) are functionally identical to their non-X2855 counterparts but are configured for specific high-speed pick-and-place machinery. Selection depends on assembly equipment compatibility.

Q: Are all substitutes ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance certification and REACH unaffected status, meeting current environmental and regulatory standards for electronic component procurement and assembly.

Q: Can I use these substitutes in new designs?

A: Yes. All substitute parts carry active product status from Littelfuse Inc., ensuring long-term availability and supply chain support for new design implementations. V175LT2P, V175LS2P, V175LU2P, and their X2855 variants are recommended for new applications requiring 270 V, 1.2 kA varistor protection in through-hole disc 7mm packaging.