Littelfuse V175LS2 Varistor: Equivalent & Substitute Parts

Part Overview

The Littelfuse V175LS2 is a 270 V, 1.2 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 V175LS2 provides single-circuit overvoltage protection with a 7mm disc form factor and operates across the temperature range of -55°C to 85°C.

Substiute Parts

V175LS2

Littelfuse Inc.In Stock: 895V175LS2 Datasheet

Current PartRFQ

V175LS2P

Littelfuse Inc.In Stock: 1006V175LS2P Datasheet

DirectRFQ

V175LS2PX2855

Littelfuse Inc.In Stock: 908V175LS2PX2855 Datasheet

Parametric EquivalentRFQ

V175LT2P

Littelfuse Inc.In Stock: 3965V175LT2P 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 V175LS2 is determined by electrical and mechanical parameter equivalence. All substitute parts maintain identical electrical specifications: 175 V maximum AC rating, 225 V maximum DC rating, 270 V typical varistor voltage, 1.2 kA surge current capacity, and 15 J energy rating. All substitutes retain the through-hole mounting configuration with 7mm disc packaging and operate within the same temperature range (-55°C to 85°C).

The primary distinction between the main part and substitutes is product status and packaging format. The V175LS2 is obsolete and supplied in bulk form, while all substitute parts are active products available in Tape & Reel (TR) packaging. Series variations (LS, LT, LU) represent different internal construction or manufacturing processes within the Littelfuse varistor product line, but all maintain identical electrical and mechanical performance parameters.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts are active products manufactured by Littelfuse Inc. and maintain full ROHS3 compliance. The V175LS2P represents the direct active equivalent with identical series designation (LS) and is available in Tape & Reel packaging. The V175LS2PX2855 variant provides the same LS series with extended reel specifications.

For applications requiring alternative series options, V175LT2P, V175LT2PX2855, V175LU2P, and V175LU2PX2855 are functionally equivalent across all electrical and mechanical parameters. Series selection should be based on supply chain availability and internal manufacturing specifications. All substitutes maintain REACH unaffected status and identical ECCN (EAR99) and HTSUS (8533.40.4000) classifications.

Frequently Asked Questions (FAQ)

Q: Can V175LT2P or V175LU2P be used as direct replacements for V175LS2?

A: Yes. All substitute parts maintain identical electrical specifications (175 V AC maximum, 225 V DC maximum, 270 V typical varistor voltage, 1.2 kA surge current, 15 J energy) and mechanical form factor (through-hole, 7mm disc). Series designation (LS, LT, LU) does not affect electrical performance or compatibility.

Q: What is the difference between V175LS2P and V175LS2PX2855?

A: Both parts are electrically and mechanically identical. The X2855 designation indicates a specific reel configuration or manufacturing batch code. Selection between these variants depends on packaging and supply requirements.

Q: Is the Tape & Reel packaging compatible with through-hole assembly equipment?

A: Tape & Reel packaging is the standard format for automated component handling and placement equipment. The physical component (7mm disc varistor) remains identical regardless of packaging format. Reel specifications do not affect electrical or mechanical performance.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the compliance profile of the original V175LS2.

Q: Why is the V175LS2 listed as obsolete?

A: The V175LS2 has been superseded by active product variants. Littelfuse continues to manufacture functionally equivalent parts under alternative series designations and packaging formats to support ongoing production requirements.