V575LU40AP Equivalent & Substitute Parts

Part Overview

The V575LU40AP is a 910 V, 4.5 kA disc varistor manufactured by Littelfuse Inc., designed for transient voltage suppression in through-hole applications. This component is actively produced and ROHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to packaging availability, inventory constraints, or application-specific mounting preferences.

Substiute Parts

V575LU40AP

Littelfuse Inc.In Stock: 1096V575LU40AP Datasheet

Current PartRFQ

V575LS40AP

Littelfuse Inc.In Stock: 1022V575LS40AP Datasheet

Parametric EquivalentRFQ

V575LT40AP

LittelfuseIn Stock: 7027V575LT40AP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the V575LU40AP is valid when the following electrical and mechanical parameters remain constant:

• Varistor voltage range: 819 V (Min) to 1.001 kV (Max)
• Surge current rating: 4.5 kA
• Maximum AC voltage: 575 V
• Maximum DC voltage: 730 V
• Energy dissipation: 120 J
• Package form factor: Disc 14mm through-hole
• Number of circuits: 1
• Operating temperature: -55°C to 85°C
• Capacitance: 220 pF @ 1 MHz

The identified substitutes V575LS40AP and V575LT40AP meet all electrical specifications. Differences are limited to series designation and packaging format (Tape & Reel versus Cut Tape), which do not affect electrical performance or mechanical fit in the application.

Parameter Comparison

Engineering Selection Recommendations

All three parts—V575LU40AP, V575LS40AP, and V575LT40AP—are active products with identical electrical specifications and regulatory compliance. Selection between them is determined by packaging and supply chain requirements:

• V575LU40AP and V575LS40AP are supplied in Tape & Reel format, suitable for automated assembly processes.
• V575LT40AP is supplied in Cut Tape format, suitable for manual or semi-automated assembly and smaller volume applications.

All parts maintain ROHS3 compliance, MSL Level 1 (unlimited moisture sensitivity), REACH unaffected status, and EAR99 export classification. No electrical or thermal performance differences exist between the three options.

Frequently Asked Questions (FAQ)

Q: Can V575LS40AP or V575LT40AP be used as direct replacements for V575LU40AP?

A: Yes. All three parts share identical electrical ratings, thermal characteristics, and mechanical dimensions. The only differences are series designation and packaging format, neither of which affects circuit performance or physical fit.

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

A: Tape & Reel packaging is continuous and optimized for automated pick-and-place assembly. Cut Tape is pre-cut into individual segments and is typically used for manual assembly, prototyping, or lower-volume production runs. Both formats contain the same component.

Q: Are there any compliance or certification differences between these parts?

A: No. All three parts carry identical certifications: ROHS3 compliance, MSL Level 1, REACH unaffected status, and EAR99 export classification.

Q: Can these parts be intermixed in the same assembly?

A: Yes, provided the assembly process accommodates the packaging format. Automated lines may require Tape & Reel format, while manual assembly can use either format. Electrical performance is identical.

Q: What inventory levels are available for each part?

A: V575LU40AP: 1028 pcs; V575LS40AP: 915 pcs; V575LT40AP: 6983 pcs. Availability should be confirmed at time of procurement.