Circuit Protection

B72225S4581K101

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EPCOS - TDK Electronics

VARISTOR 940V 20KA DISC 27.5MM

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Circuit Protection

B72225S4581K101

Active

EPCOS - TDK Electronics

VARISTOR 940V 20KA DISC 27.5MM

Deep-Dive with AI

DocumentsDatasheet

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	B72225S4581K101

Capacitance @ Frequency	830 pF
Current - Surge	20 kA
Energy	800 J
Maximum AC Volts [Max]	580 V
Maximum DC Volts [Max]	780 V
Mounting Type	Through Hole
Number of Circuits	1
Operating Temperature [Max]	105 °C
Operating Temperature [Min]	-40 °C
Package / Case	27.5 mm
Package / Case	Disc
Varistor Voltage (Max) [Max]	1.034 kV
Varistor Voltage (Min) [Min]	846 V
Varistor Voltage (Typ)	940 V

B72225S Series

Part	Varistor Voltage (Min) [Min]	Capacitance @ Frequency	Current - Surge	Varistor Voltage (Max) [Max]	Energy	Mounting Type	Number of Circuits	Maximum DC Volts [Max]	Maximum AC Volts [Max]	Varistor Voltage (Typ)	Operating Temperature [Min]	Operating Temperature [Max]	Package / Case	Package / Case	Varistor Voltage (Max)
EPCOS - TDK Electronics B72225S4301K101	423 V	1 kHz 1750 pF	20 kA	517 V	410 J	Through Hole	1	385 V	300 V	470 V	-40 °C	105 °C	27.5 mm	Disc
EPCOS - TDK Electronics B72225S4581K101	846 V	830 pF	20 kA	1.034 kV	800 J	Through Hole	1	780 V	580 V	940 V	-40 °C	105 °C	27.5 mm	Disc
EPCOS - TDK Electronics B72225S4551K101	819 V	1 kHz 1500 pF	20 kA	1.001 kV	780 J	Through Hole	1	745 V	550 V	910 V	-40 °C	105 °C	27.5 mm	Disc
EPCOS - TDK Electronics B72225S4251K101	351 V	2100 pF	20 kA	429 V	345 J	Through Hole	1	320 V	250 V	390 V	-40 °C	105 °C	27.5 mm	Disc
EPCOS - TDK Electronics B72225S4441K101	643.5 V	1100 pF	20 kA	786.5 V	710 J	Through Hole	1	585 V	440 V	715 V	-40 °C	105 °C	27.5 mm	Disc
EPCOS - TDK Electronics B72225S4141K101	198 V	3550 pF	20 kA		195 J	Through Hole	1	180 V	140 V	220 V	-40 °C	105 °C	27.5 mm	Disc	242 V
EPCOS - TDK Electronics B72225S4151K101	216 V	3250 pF	20 kA	264 V	215 J	Through Hole	1	200 V	150 V	240 V	-40 °C	105 °C	27.5 mm	Disc
EPCOS - TDK Electronics B72225S4131K101	184.5 V	1 kHz 3800 pF	20 kA	225.5 V	185 J	Through Hole	1	170 V	130 V	205 V	-40 °C	105 °C	27.5 mm	Disc
EPCOS - TDK Electronics B72225S4171K101	243 V		20 kA	297 V	245 J	Through Hole	1	225 V	175 V	270 V	-40 °C	105 °C	27.5 mm	Disc
EPCOS - TDK Electronics B72225S4271K101	387 V	1900 pF	20 kA		375 J	Through Hole	1	350 V	275 V	430 V	-40 °C	105 °C	27.5 mm	Disc	473 V

Pricing

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

Distributor	Package	Quantity	$

Digikey	Bulk	1	$ 4.01
		10	$ 3.60
		25	$ 3.40
		100	$ 2.95
		300	$ 2.80
		500	$ 2.51
		1000	$ 2.12
		2500	$ 2.10
	N/A	128	$ 3.98

Description

General part information

B72225S Series

940 V 20 kA Varistor 1 Circuit Through Hole Disc 27.5mm

Documents

Technical documentation and resources