V275LT2P Equivalent & Substitute Parts

Part Overview

The V275LT2P is a 450 V, 1.2 kA varistor manufactured by Littelfuse Inc. in the LT series. This through-hole disc varistor (7mm) is designed for transient voltage suppression applications requiring single-circuit protection. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across the specified parameter ranges.

Key Parameters

Parameter	Value	Unit
Maximum AC Volts	275	V
Maximum DC Volts	369	V
Varistor Voltage (Typical)	450	V
Varistor Voltage Range	405–495	V
Current - Surge	1.2	kA
Energy	23	J
Number of Circuits	1	—
Capacitance @ Frequency	80 pF @ 1 MHz	pF
Operating Temperature	−55 to +85	°C
Mounting Type	Through Hole	—
Package / Case	Disc 7mm	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Electrical Parameters (Primary):

Maximum AC Volts: 275 V (fixed requirement)
Maximum DC Volts: ≥369 V
Varistor Voltage (Typical): 430–450 V range acceptable
Current - Surge: 1.2 kA (fixed requirement)
Number of Circuits: 1 (fixed requirement)

Mechanical Parameters (Secondary):

Mounting Type: Through Hole (fixed requirement)
Package / Case: Disc 7mm (fixed requirement)

Compliance Parameters:

RoHS Status: ROHS3 Compliant (required)
ECCN: EAR99 (consistent across all parts)

Substitute parts must satisfy all primary electrical parameters and mechanical constraints. Variations in energy rating, capacitance, and operating temperature range are acceptable provided the part remains within the specified voltage and current envelope.

Parameter Comparison

Parameter	V275LT2P (Main)	V275LS2P (Parametric Equivalent)	B72207S0271K111 (MFR Recommended)
Manufacturer	Littelfuse Inc.	Littelfuse Inc.	EPCOS - TDK Electronics
Series	LT	LS	Standard
Maximum AC Volts	275 V	275 V	275 V
Maximum DC Volts	369 V	369 V	350 V
Varistor Voltage (Min)	405 V	405 V	387 V
Varistor Voltage (Typ)	450 V	450 V	430 V
Varistor Voltage (Max)	495 V	495 V	473 V
Current - Surge	1.2 kA	1.2 kA	1.2 kA
Energy	23 J	23 J	21 J
Number of Circuits	1	1	1
Capacitance @ Frequency	80 pF @ 1 MHz	80 pF @ 1 MHz	110 pF @ 1 kHz
Operating Temperature	−55 to +85°C	−55 to +85°C	−40 to +105°C
Mounting Type	Through Hole	Through Hole	Through Hole
Package / Case	Disc 7mm	Disc 7mm	Disc 7mm
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Packaging Type	Tape & Reel (TR)	Cut Tape (CT)	Cut Tape (CT)
Product Status	Active	Active	Active

Engineering Selection Recommendations

V275LS2P (Parametric Equivalent): This substitute is a direct parametric match to the V275LT2P. Both parts are manufactured by Littelfuse Inc., share identical electrical specifications across all voltage and current ratings, and maintain the same operating temperature range. The only difference is packaging format: V275LS2P is supplied in Cut Tape (CT) versus Tape & Reel (TR) for the main part. Both are ROHS3 compliant and active products. Selection between these parts depends solely on packaging requirements for assembly operations.

B72207S0271K111 (MFR Recommended): This EPCOS - TDK Electronics part is a cross-manufacturer substitute with acceptable but not identical electrical characteristics. The varistor voltage is lower (430 V typical versus 450 V), resulting in a maximum DC voltage rating of 350 V compared to 369 V for the main part. The energy rating is also reduced (21 J versus 23 J). The operating temperature range is extended (−40 to +105°C). This part is suitable for applications where the lower voltage threshold and reduced energy capacity are compatible with circuit requirements. ROHS3 compliance and active product status are maintained.

Frequently Asked Questions (FAQ)

Q: Can V275LS2P be used as a direct replacement for V275LT2P? A: Yes. V275LS2P is a parametric equivalent with identical electrical specifications. The difference is packaging format: Cut Tape (CT) versus Tape & Reel (TR). Selection depends on assembly line requirements.

Q: Is B72207S0271K111 a suitable substitute for V275LT2P? A: B72207S0271K111 is acceptable as a substitute with the following constraints: the varistor voltage is 20 V lower (430 V typical), maximum DC voltage is 19 V lower (350 V), and energy capacity is 2 J lower (21 J). These differences must be compatible with the application circuit design. The part maintains 1.2 kA surge current capacity and through-hole disc 7mm form factor.

Q: What are the key parameters that determine substitution eligibility? A: Substitution is based on: (1) Maximum AC Volts = 275 V, (2) Current - Surge = 1.2 kA, (3) Number of Circuits = 1, (4) Mounting Type = Through Hole, (5) Package / Case = Disc 7mm, and (6) RoHS Status = ROHS3 Compliant. Varistor voltage, maximum DC voltage, energy, and operating temperature may vary within acceptable ranges.

Q: Does packaging format affect electrical performance? A: No. Tape & Reel (TR) and Cut Tape (CT) packaging formats do not affect electrical performance. The difference is in supply format for automated assembly processes.

Q: Are all substitute parts ROHS3 compliant? A: Yes. V275LT2P, V275LS2P, and B72207S0271K111 are all ROHS3 compliant.

Q: What is the operating temperature difference between the main part and B72207S0271K111? A: V275LT2P operates from −55 to +85°C. B72207S0271K111 operates from −40 to +105°C. The EPCOS part has a narrower lower temperature limit but extends to a higher upper limit.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message