V275LT40APX10 Equivalent & Substitute Parts

Part Overview

The V275LT40APX10 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 in active production status with 741 units available in tape and reel packaging. Substitute parts are identified when packaging format differs while maintaining identical electrical and mechanical specifications.

Key Parameters

Parameter	Value
Varistor Voltage (Typical)	430 V
Current - Surge	6.5 kA
Energy	140 J
Maximum AC Volts	275 V
Maximum DC Volts	369 V
Operating Temperature Range	-55°C to 85°C
Mounting Type	Through Hole
Package / Case	Disc 20mm
Capacitance @ 1 MHz	900 pF
Number of Circuits	1

Substitute Part Grouping Explanation

Substitute parts for the V275LT40APX10 are qualified based on electrical parameter equivalence and mechanical compatibility. The following criteria determine substitutability:

Varistor voltage range (387 V minimum to 473 V maximum)
Surge current rating (6.5 kA)
Energy absorption capacity (140 J)
Disc form factor (20mm)
Through-hole mounting configuration
Operating temperature range (-55°C to 85°C)
RoHS3 compliance and MSL rating

Identified substitutes differ only in packaging format (Cut Tape versus Tape & Reel), while maintaining all electrical and mechanical specifications. Series designation changes (LS or LT) reflect internal Littelfuse product line variations that do not affect functional performance in the application.

Parameter Comparison

Parameter	V275LT40APX10	V275LS40AP	V275LT40AP
Manufacturer	Littelfuse Inc.	Littelfuse Inc.	Littelfuse Inc.
Category	Transient Voltage Suppressors (TVS)	Transient Voltage Suppressors (TVS)	Transient Voltage Suppressors (TVS)
Packaging	Tape & Reel (TR)	Cut Tape (CT)	Cut Tape (CT)
Maximum AC Volts	275 V	275 V	275 V
Maximum DC Volts	369 V	369 V	369 V
Varistor Voltage (Min)	387 V	387 V	387 V
Varistor Voltage (Typ)	430 V	430 V	430 V
Varistor Voltage (Max)	473 V	473 V	473 V
Current - Surge	6.5 kA	6.5 kA	6.5 kA
Energy	140 J	140 J	140 J
Number of Circuits	1	1	1
Capacitance @ 1 MHz	900 pF	900 pF	900 pF
Operating Temperature	-55°C to 85°C	-55°C to 85°C	-55°C to 85°C
Mounting Type	Through Hole	Through Hole	Through Hole
Package / Case	Disc 20mm	Disc 20mm	Disc 20mm
Product Status	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

All three parts—V275LT40APX10, V275LS40AP, and V275LT40AP—are active production components from Littelfuse Inc. with identical electrical performance and mechanical form factors. Selection between these parts is determined by packaging requirements and supply chain availability rather than functional differences.

The V275LT40APX10 in Tape & Reel packaging is suitable for high-volume automated assembly processes. The V275LS40AP and V275LT40AP in Cut Tape packaging accommodate lower-volume applications or manual assembly workflows. All three maintain RoHS3 compliance, REACH unaffected status, and MSL rating of 1 (unlimited moisture sensitivity level), ensuring compatibility with standard PCB assembly and storage protocols.

Frequently Asked Questions (FAQ)

Q: Can V275LS40AP or V275LT40AP be used as direct replacements for V275LT40APX10?

A: Yes. All three parts share identical electrical specifications (430 V typical varistor voltage, 6.5 kA surge current, 140 J energy) and mechanical configuration (20mm disc, through-hole mounting). The only difference is packaging format: V275LT40APX10 uses Tape & Reel, while V275LS40AP and V275LT40AP use Cut Tape.

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

A: Tape & Reel packaging is optimized for automated pick-and-place assembly on production lines. Cut Tape packaging provides individual component strips suitable for manual assembly or lower-volume production. Both formats contain the same component with identical specifications.

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

A: No. All three parts carry identical RoHS3 compliance, REACH unaffected status, MSL rating of 1 (unlimited), and ECCN/HTSUS classifications. They meet the same regulatory and environmental standards.

Q: Which part should be selected for a new design?

A: Selection depends on assembly method and volume requirements. For automated assembly, V275LT40APX10 (Tape & Reel) is standard. For manual assembly or prototyping, V275LS40AP or V275LT40AP (Cut Tape) may be more practical. All three are functionally equivalent for circuit design purposes.

Q: Do these parts have different lead times or availability?

A: Availability varies by distributor and time. V275LT40APX10 has 741 units in stock, V275LS40AP has 2024 units, and V275LT40AP has 1260 units. Inventory levels should be verified with your component supplier for current availability.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message