V275LS40BP Equivalent & Substitute Parts

Part Overview

The V275LS40BP is a 421 V, 6.5 kA Transient Voltage Suppressor (TVS) varistor manufactured by Littelfuse Inc. in the LS series. This through-hole disc component (20mm) is designed for transient voltage protection applications requiring high surge current capacity and energy absorption. The part is currently active in production with full RoHS3 compliance and unlimited moisture sensitivity rating. Alternative models are identified to support procurement flexibility, inventory optimization, and packaging format preferences across different supply chain requirements.

Substiute Parts

V275LS40BP

Littelfuse Inc.In Stock: 884V275LS40BP Datasheet

Current PartRFQ

V275LT40BP

Littelfuse Inc.In Stock: 2648V275LT40BP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The V275LT40BP is identified as a parametric equivalent to the V275LS40BP based on strict electrical and mechanical compatibility criteria. Both parts share identical electrical specifications across all critical parameters: varistor voltage range (389–453 V), surge current capacity (6.5 kA), energy rating (140 J), capacitance (900 pF @ 1 MHz), and operating temperature range (-55°C to 85°C). Both components feature the same through-hole mounting configuration and 20mm disc package format, ensuring mechanical interchangeability in PCB layouts.

The substitution is valid based on the following key parameters:

• Varistor Voltage (Min/Typ/Max): 389 V / 421 V / 453 V
• Current - Surge: 6.5 kA
• Energy: 140 J
• Package / Case: Disc 20mm
• Mounting Type: Through Hole
• Number of Circuits: 1

The primary difference between these parts is packaging format: V275LS40BP is supplied in Tape & Reel (TR) format, while V275LT40BP is supplied in Cut Tape (CT) format. This distinction affects supply chain logistics and automated assembly processes but does not alter electrical or mechanical performance.

Parameter Comparison

Engineering Selection Recommendations

Both V275LS40BP and V275LT40BP are active production components with identical electrical and mechanical specifications. Selection between these parts should be based on supply chain and assembly process requirements:

V275LS40BP (Tape & Reel): Suitable for high-volume automated assembly operations utilizing tape-fed component placement equipment. Tape & Reel packaging optimizes pick-and-place machine compatibility and reduces manual handling.

V275LT40BP (Cut Tape): Appropriate for lower-volume production runs, manual assembly processes, or applications where component-level flexibility is prioritized over automated handling efficiency.

Both parts maintain full RoHS3 compliance, REACH unaffected status, and unlimited moisture sensitivity rating (MSL 1), ensuring regulatory and environmental compatibility across all applications. Product status is active for both variants, confirming ongoing manufacturer support and supply availability.

Frequently Asked Questions (FAQ)

Q: Can V275LT40BP be used as a direct replacement for V275LS40BP in existing designs?

A: Yes. Both parts are electrically and mechanically identical. The only difference is packaging format (Cut Tape vs. Tape & Reel). PCB layout, circuit performance, and thermal characteristics remain unchanged. Substitution is valid for all applications where V275LS40BP is specified.

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

A: Tape & Reel (TR) packaging supplies components on continuous carrier tape wound on a reel, optimized for automated pick-and-place assembly. Cut Tape (CT) packaging supplies the same components on tape segments cut to specific lengths, suitable for manual assembly or lower-volume production. Electrical and mechanical properties are identical.

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

A: No. Both V275LS40BP and V275LT40BP carry identical certifications: RoHS3 compliance, REACH unaffected status, and MSL 1 (unlimited moisture sensitivity). Regulatory and environmental requirements are met equally by both variants.

Q: What are the critical parameters for substitution compatibility?

A: Substitution is valid when the following parameters match: varistor voltage range (389–453 V), surge current capacity (6.5 kA), energy rating (140 J), mounting type (through hole), and package format (disc 20mm). Both parts satisfy all these criteria.

Q: Which part should be selected for high-volume manufacturing?

A: V275LS40BP (Tape & Reel) is recommended for high-volume automated assembly due to superior compatibility with tape-fed placement equipment and reduced manual handling requirements.

Q: Which part should be selected for prototyping or low-volume production?

A: V275LT40BP (Cut Tape) is suitable for prototyping and low-volume runs where component-level flexibility and manual assembly processes are employed.