V175LS10A Equivalent & Substitute Parts

Part Overview

The V175LS10A is a 270 V, 4.5 kA disc varistor manufactured by Littelfuse Inc., 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. Substitute parts maintain identical electrical and mechanical specifications while offering active product status and improved availability.

Key Parameters

Parameter	Value
Varistor Voltage (Typical)	270 V
Current - Surge	4.5 kA
Maximum AC Volts	175 V
Maximum DC Volts	225 V
Energy	55 J
Mounting Type	Through Hole
Package / Case	Disc 14mm
Operating Temperature Range	-55°C to 85°C
Capacitance @ 1 MHz	700 pF
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

All substitute parts for the V175LS10A maintain identical electrical performance parameters: 270 V typical varistor voltage, 4.5 kA surge current, 55 J energy rating, and 700 pF capacitance at 1 MHz. Mechanical compatibility is preserved through identical through-hole mounting and 14mm disc package specifications. Operating temperature range remains -55°C to 85°C across all variants.

Substitution is determined by the following key parameters:

Varistor voltage rating (243 V minimum, 270 V typical, 297 V maximum)
Surge current capacity (4.5 kA)
Energy dissipation (55 J)
Physical package (Disc 14mm, through-hole)
Temperature operating range (-55°C to 85°C)

Substitute parts differ only in series designation (LS, LT, LU) and packaging format (bulk versus tape & reel). All substitute parts carry active product status and ROHS3 compliance.

Parameter Comparison

Part Number	Series	Varistor Voltage (Typ)	Surge Current	Energy	Package	Mounting	Product Status	Inventory
V175LS10A	LS	270 V	4.5 kA	55 J	Disc 14mm	Through Hole	Obsolete	891 Pcs
V175LS10AP	LS	270 V	4.5 kA	55 J	Disc 14mm	Through Hole	Active	1038 Pcs
V175LS10APX2855	LS	270 V	4.5 kA	55 J	Disc 14mm	Through Hole	Active	907 Pcs
V175LT10AP	LT	270 V	4.5 kA	55 J	Disc 14mm	Through Hole	Active	1153 Pcs
V175LT10APX2855	LT	270 V	4.5 kA	55 J	Disc 14mm	Through Hole	Active	1097 Pcs
V175LU10AP	LU	270 V	4.5 kA	55 J	Disc 14mm	Through Hole	Active	696 Pcs
V175LU10APX2855	LU	270 V	4.5 kA	55 J	Disc 14mm	Through Hole	Active	980 Pcs

Engineering Selection Recommendations

For applications currently using the obsolete V175LS10A, direct substitution is supported by V175LS10AP and V175LS10APX2855, which maintain identical series designation while offering active product status. Both parts are ROHS3 compliant and REACH unaffected.

Alternative series options V175LT10AP, V175LT10APX2855, V175LU10AP, and V175LU10APX2855 provide equivalent electrical and mechanical performance with active product status. These alternatives are suitable for new designs and production transitions where series flexibility exists.

All substitute parts carry ROHS3 compliance and moisture sensitivity level 1 (unlimited). Selection between tape & reel and bulk packaging variants should be based on procurement and assembly process requirements.

Frequently Asked Questions (FAQ)

Q: Can V175LT10AP replace V175LS10A in existing designs? A: Yes. Both parts maintain identical electrical parameters (270 V varistor voltage, 4.5 kA surge current, 55 J energy) and mechanical specifications (through-hole, 14mm disc package). The series designation change (LS to LT) does not affect functional compatibility.

Q: What is the difference between V175LS10AP and V175LS10APX2855? A: Both parts are electrically and mechanically identical. The X2855 suffix indicates a specific manufacturing or traceability code. Selection between these variants should be based on procurement specifications or traceability requirements.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All substitute parts listed carry ROHS3 compliance certification. The original V175LS10A also meets ROHS3 requirements.

Q: What packaging options are available? A: Substitute parts are available in tape & reel (TR) packaging. The original V175LS10A was supplied in bulk format. Tape & reel packaging is standard for active production variants.

Q: Can I mix different series (LS, LT, LU) in the same application? A: Yes. All series variants maintain identical electrical performance and mechanical form factor. Series designation reflects internal manufacturing differences that do not affect circuit performance or compatibility.

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