Littelfuse V480LU7P Varistor: Equivalent & Substitute Parts

Part Overview

The Littelfuse V480LU7P is a 750 V, 1.2 kA disc varistor designed for transient voltage suppression applications. This through-hole component operates across a temperature range of -55°C to 85°C and is ROHS3 compliant. The part is currently in active production status with 719 units available in tape and reel packaging. Substitute parts are identified when packaging format changes or inventory constraints require alternative sourcing while maintaining identical electrical and mechanical specifications.

Substiute Parts

V480LU7P
Littelfuse Inc.In Stock: 755V480LU7P Datasheet
V480LU7P
Current Part
V480LT7P
Littelfuse Inc.In Stock: 11045V480LT7P Datasheet
V480LT7P
Parametric Equivalent

Key Parameters

Parameter Value
Varistor Voltage (Typical) 750 V
Current - Surge 1.2 kA
Maximum AC Volts 480 V
Maximum DC Volts 640 V
Energy 35 J
Number of Circuits 1
Capacitance @ 1 MHz 50 pF
Operating Temperature Range -55°C to 85°C
Package / Case Disc 7mm
Mounting Type Through Hole

Substitute Part Grouping Explanation

The V480LT7P is a parametric equivalent to the V480LU7P. Substitution is valid based on the following criteria:

  • Identical varistor voltage range: 675 V (Min), 750 V (Typ), 825 V (Max)
  • Identical surge current rating: 1.2 kA
  • Identical energy dissipation: 35 J
  • Identical AC and DC voltage ratings: 480 V AC, 640 V DC
  • Identical physical package: Disc 7mm through-hole
  • Identical operating temperature range: -55°C to 85°C
  • Identical compliance certifications: ROHS3, REACH Unaffected

The only difference between these parts is the packaging format: V480LU7P is supplied in tape and reel (TR), while V480LT7P is supplied in cut tape (CT). Both are manufactured by Littelfuse Inc. and belong to the LU and LT series respectively.

Parameter Comparison

Parameter V480LU7P V480LT7P
Manufacturer Littelfuse Inc. Littelfuse Inc.
Category Transient Voltage Suppressors (TVS) Transient Voltage Suppressors (TVS)
Varistor Voltage (Min) 675 V 675 V
Varistor Voltage (Typ) 750 V 750 V
Varistor Voltage (Max) 825 V 825 V
Current - Surge 1.2 kA 1.2 kA
Energy 35 J 35 J
Number of Circuits 1 1
Capacitance @ 1 MHz 50 pF 50 pF
Maximum AC Volts 480 V 480 V
Maximum DC Volts 640 V 640 V
Operating Temperature Range -55°C to 85°C -55°C to 85°C
Mounting Type Through Hole Through Hole
Package / Case Disc 7mm Disc 7mm
Packaging Format Tape & Reel (TR) Cut Tape (CT)
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 V480LU7P and V480LT7P are active production components from Littelfuse Inc. with identical electrical and mechanical specifications. Selection between these parts depends on packaging requirements and supply chain considerations:

  • V480LU7P is appropriate for automated assembly processes requiring tape and reel packaging format
  • V480LT7P is appropriate for manual assembly or lower-volume applications utilizing cut tape format
  • Both parts maintain ROHS3 compliance and REACH unaffected status
  • Both parts carry unlimited moisture sensitivity level (MSL 1), eliminating bake-out requirements
  • Inventory availability: V480LT7P has higher stock (10,997 units) compared to V480LU7P (719 units)

Frequently Asked Questions (FAQ)

Q: Can V480LT7P replace V480LU7P in production? A: Yes. Both parts are electrically and mechanically identical. The substitution is valid provided your assembly process can accommodate cut tape packaging instead of tape and reel format.

Q: What is the difference between tape and reel (TR) and cut tape (CT) packaging? A: Tape and reel packaging supplies components on a continuous reel suitable for high-speed automated pick-and-place equipment. Cut tape packaging supplies components on individual tape segments suitable for manual handling or lower-volume assembly. Both formats contain the same component.

Q: Are there any compliance differences between these parts? A: No. Both V480LU7P and V480LT7P carry identical RoHS3 compliance, REACH unaffected status, and moisture sensitivity level (MSL 1).

Q: What are the key electrical parameters that define substitution eligibility? A: Varistor voltage (750 V typical), surge current (1.2 kA), energy dissipation (35 J), AC/DC voltage ratings (480 V AC / 640 V DC), and operating temperature range (-55°C to 85°C) must remain identical for substitution.

Q: Can these parts be used interchangeably in the same circuit design? A: Yes. The electrical performance and physical dimensions are identical. Circuit performance will not be affected by switching between these two packaging formats.

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