V175LT20AP Equivalent & Substitute Parts

Part Overview

The V175LT20AP is a 270 V, 6.5 kA Transient Voltage Suppressor (TVS) varistor manufactured by Littelfuse Inc. in a through-hole disc configuration (20mm). This component is designed for transient voltage protection in electronic circuits and is currently in active production status. Finding equivalent substitute parts is necessary when the primary packaging format (Tape & Reel) is unavailable or when alternative sourcing is required for supply chain continuity.

Substiute Parts

V175LT20AP
Littelfuse Inc.In Stock: 892V175LT20AP Datasheet
V175LT20AP
Current Part
V175LS20AP
Littelfuse Inc.In Stock: 1412V175LS20AP Datasheet
V175LS20AP
Parametric Equivalent

Key Parameters

Parameter Value
Varistor Voltage (Typical) 270 V
Current - Surge 6.5 kA
Maximum AC Volts 175 V
Maximum DC Volts 225 V
Energy 90 J
Mounting Type Through Hole
Package / Case Disc 20mm
Operating Temperature Range -55°C to 85°C
Number of Circuits 1

Substitute Part Grouping Explanation

The V175LS20AP qualifies as a parametric equivalent to the V175LT20AP based on the following criteria:

Electrical Parameters Match:

  • Varistor voltage range: 243 V (Min) to 297 V (Max), with 270 V typical
  • Surge current capacity: 6.5 kA
  • Maximum AC/DC voltage ratings: 175 V AC / 225 V DC
  • Energy dissipation: 90 J
  • Capacitance: 1400 pF @ 1 MHz

Mechanical & Physical Parameters Match:

  • Mounting type: Through Hole
  • Package configuration: Disc 20mm
  • Number of circuits: 1

Compliance & Status Match:

  • RoHS3 Compliant
  • REACH Unaffected
  • Moisture Sensitivity Level: 1 (Unlimited)
  • Product Status: Active

The only difference between these parts is the packaging format: V175LT20AP is supplied in Tape & Reel (TR), while V175LS20AP is supplied in Cut Tape (CT). Both are manufactured by Littelfuse Inc. within the same LT/LS series and share identical electrical and mechanical specifications.

Parameter Comparison

Parameter V175LT20AP V175LS20AP
Manufacturer Littelfuse Inc. Littelfuse Inc.
Category Transient Voltage Suppressors (TVS) Transient Voltage Suppressors (TVS)
Packaging Format Tape & Reel (TR) Cut Tape (CT)
Varistor Voltage (Min) 243 V 243 V
Varistor Voltage (Typ) 270 V 270 V
Varistor Voltage (Max) 297 V 297 V
Current - Surge 6.5 kA 6.5 kA
Energy 90 J 90 J
Maximum AC Volts 175 V 175 V
Maximum DC Volts 225 V 225 V
Number of Circuits 1 1
Capacitance @ 1 MHz 1400 pF 1400 pF
Operating Temperature -55°C to 85°C -55°C to 85°C
Mounting Type Through Hole Through Hole
Package / Case Disc 20mm Disc 20mm
RoHS Status ROHS3 Compliant ROHS3 Compliant
Moisture Sensitivity Level 1 (Unlimited) 1 (Unlimited)
REACH Status REACH Unaffected REACH Unaffected
Product Status Active Active

Engineering Selection Recommendations

Both the V175LT20AP and V175LS20AP are active production components from Littelfuse Inc. with identical electrical and mechanical specifications. Selection between these parts should be based on packaging requirements and supply availability:

  • V175LT20AP (Tape & Reel): Suitable for high-volume automated assembly processes requiring reel-fed component handling.
  • V175LS20AP (Cut Tape): Suitable for lower-volume applications, manual assembly, or when reel packaging is not required.

Both parts maintain full RoHS3 compliance and REACH compliance status. The MSL rating of 1 (Unlimited) indicates no moisture sensitivity constraints for storage or handling. Selection of either part does not compromise circuit performance, reliability, or regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can V175LS20AP be used as a direct replacement for V175LT20AP?

A: Yes. Both parts are electrically and mechanically identical. The only difference is packaging format (Cut Tape vs. Tape & Reel). Direct substitution is valid for through-hole assembly applications.

Q: What is the difference between Tape & Reel and Cut Tape packaging?

A: Tape & Reel (TR) packaging supplies components on continuous reels suitable for automated pick-and-place equipment. Cut Tape (CT) packaging supplies components on tape segments, typically used for manual assembly or lower-volume production runs.

Q: Are there any compliance differences between these parts?

A: No. Both parts carry identical RoHS3 compliance, REACH compliance status, and MSL ratings. There are no regulatory or environmental differences.

Q: What is the varistor voltage tolerance range?

A: The varistor voltage tolerance is 243 V (minimum) to 297 V (maximum), with a typical value of 270 V. Both parts share this identical specification.

Q: Can these parts be used interchangeably in PCB assembly?

A: Yes, for through-hole assembly applications. Both parts use identical Disc 20mm package configurations and mounting specifications. PCB footprints and assembly procedures remain unchanged.

Q: What is the surge current rating?

A: Both parts are rated for 6.5 kA surge current with 90 J energy dissipation capacity.

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