V275LS40APX10 Equivalent & Substitute Parts

Part Overview

The V275LS40APX10 is a 430 V, 6.5 kA disc varistor manufactured by Littelfuse Inc., 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 active in production with 701 units in stock. Substitute parts are identified when packaging format differs while all critical electrical and mechanical parameters remain identical, enabling flexible procurement and supply chain optimization.

Substiute Parts

V275LS40APX10

Littelfuse Inc.In Stock: 808V275LS40APX10 Datasheet

Current PartRFQ

V275LS40AP

Littelfuse Inc.In Stock: 2058V275LS40AP Datasheet

Parametric EquivalentRFQ

V275LT40AP

Littelfuse Inc.In Stock: 1335V275LT40AP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the V275LS40APX10 are qualified based on identical electrical performance and mechanical compatibility. The substitution criteria are:

• Varistor voltage range (Min/Typ/Max): 387 V / 430 V / 473 V
• Surge current rating: 6.5 kA
• Energy dissipation: 140 J
• Capacitance: 900 pF @ 1 MHz
• Operating temperature: -55°C to 85°C
• Mounting configuration: Through Hole, Disc 20mm package
• Number of circuits: 1
• Regulatory compliance: RoHS3, REACH Unaffected

The identified substitutes differ only in packaging format (Tape & Reel versus Cut Tape) and series designation (LS versus LT), with no impact on functional performance or board-level integration.

Parameter Comparison

Engineering Selection Recommendations

All three parts—V275LS40APX10, V275LS40AP, and V275LT40AP—are functionally equivalent for circuit design purposes. Selection between them is determined by procurement and assembly requirements:

V275LS40APX10 (Tape & Reel packaging) is suitable for high-volume automated assembly processes requiring reel-fed component handling.

V275LS40AP (Cut Tape packaging) accommodates lower-volume production runs or manual assembly workflows while maintaining identical electrical specifications.

V275LT40AP (Cut Tape packaging, LT series) provides an alternative sourcing option with equivalent performance characteristics and higher current inventory availability.

All parts maintain RoHS3 compliance, REACH unaffected status, and identical regulatory classifications (ECCN EAR99, HTSUS 8533.40.4000), ensuring consistent compliance across supply chain alternatives.

Frequently Asked Questions (FAQ)

Q: Can V275LS40AP be used as a direct replacement for V275LS40APX10 in production?

A: Yes. Both parts are electrically and mechanically identical. The difference is packaging format: V275LS40APX10 is supplied in Tape & Reel format, while V275LS40AP is supplied in Cut Tape format. Selection depends on assembly equipment compatibility and volume requirements.

Q: What is the difference between the LS and LT series designations?

A: The LS and LT series designations indicate different product lines within Littelfuse's varistor portfolio. For the V275 voltage class at 6.5 kA surge rating, both series deliver identical electrical performance, varistor voltage characteristics, and thermal operating range. Series selection is based on supplier availability and procurement strategy.

Q: Are all three parts suitable for the same circuit application?

A: Yes. All three parts share identical electrical parameters: 430 V typical varistor voltage, 6.5 kA surge current, 140 J energy dissipation, and 900 pF capacitance at 1 MHz. They are interchangeable at the circuit level. Packaging format differences do not affect functional performance.

Q: What packaging format should be selected for automated assembly?

A: Tape & Reel (TR) packaging, represented by V275LS40APX10, is optimized for automated pick-and-place assembly systems. Cut Tape (CT) packaging, represented by V275LS40AP and V275LT40AP, is suitable for manual assembly or lower-volume production environments.

Q: Do all substitute parts meet the same compliance standards?

A: Yes. All three parts are RoHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with HTSUS code 8533.40.4000. Moisture sensitivity level is 1 (Unlimited) for all variants, indicating no special storage or handling requirements.