Circuit Protection

V320SM20

Active

LITTELFUSE

SURFACE MOUNT SM20 VARISTORS/ TR ROHS COMPLIANT: YES

Deep-Dive with AI

Search across all available documentation for this part.

DocumentsDatasheet

Circuit Protection

V320SM20

Active

LITTELFUSE

SURFACE MOUNT SM20 VARISTORS/ TR ROHS COMPLIANT: YES

Deep-Dive with AI

DocumentsDatasheet

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	V320SM20

Capacitance @ Frequency	1 MHz, 750 pF
Energy	150 J
Maximum AC Volts [Max]	320 V
Maximum DC Volts [Max]	420 V
Mounting Type	Surface Mount
Number of Circuits	1
Operating Temperature [Max]	85 C
Operating Temperature [Min]	-40 ¯C
Package / Case	20 mm
Package / Case	Disc, Tabbed SMD
Varistor Voltage (Max) [Max]	540 V
Varistor Voltage (Min) [Min]	462 V
Varistor Voltage (Typ)	501 V

SM20 Series

SM SERIES VARISTOR 26V DC RATING

Part	Varistor Voltage (Max)	Mounting Type	Maximum DC Volts [Max]	Capacitance @ Frequency	Varistor Voltage (Typ)	Varistor Voltage (Min) [Min]	Number of Circuits	Maximum AC Volts [Max]	Package / Case	Package / Case	Current - Surge	Energy	Operating Temperature [Max]	Operating Temperature [Min]	Varistor Voltage (Max) [Max]
LITTELFUSE V26SM20	40 V	Surface Mount	26 V	1 MHz 12000 pF	36 V	32 V	1	20 V	20 mm	Disc Tabbed SMD	2 kA	20 J	85 C	-40 ¯C
LITTELFUSE V320SM20		Surface Mount	420 V	1 MHz 750 pF	501 V	462 V	1	320 V	20 mm	Disc Tabbed SMD		150 J	85 C	-40 ¯C	540 V
LITTELFUSE V275SM20	473 V	Surface Mount	369 V	1 MHz 900 pF	431 V	389 V	1	275 V	20 mm	Disc Tabbed SMD		140 J	85 C	-40 ¯C

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	N/A	385	$ 3.78
Mouser	N/A	1	$ 5.08
		10	$ 4.05
		25	$ 3.82
		108	$ 3.31
		216	$ 3.14
		432	$ 2.82
Newark	Each (Supplied on Cut Tape)	100	$ 3.85

Description

General part information

SM20 Series

The Littelfuse SM20 Series is a 20mm SMD metal oxide varistor device. The AC rated parts are designed to operate continuously across AC power lines. The DC rated parts are suitable for Automotive applications. The series comprises a Nylon molded package with folded tin plated metal leads for soldering to board. The SMD Series is based on radial 20mm internal varistor element with similar characteristics to the Littelfuse LA / ZA series of varistors.

Documents

Technical documentation and resources