ThermoFuse Varistors

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B72220R2321K101

Product Status	Production
Applications	Consumer Communication Systems Industrial
Type	NT20K320E2K4
Brand	TDK
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Voltage Protection Devices,ThermoFuse Varistors:ETFV

Images are for reference only and show example products.

3D Model

Size

W (Width)	23.00mm Max.
T (Thickness)	11.00mm Max.
H (Height)	23.00mm Max.
Detail Size Information	Please refer to the data sheet

Electrical Characteristics

Varistor Voltage @ 1mA	510V
Maximum Operating Voltage [DC]	420V
Maximum Operating Voltage [AC]	320Vrms
Nominal DischargeCurrent In [8/20μs, 15times]	5kA
Maximum Surge Current Imax [8/20µs, 1time]	10kA
Energy Absorption	273J
Capacitance (Typ.)	720pF

Other

Operating Temperature Range	Please refer to the data sheet
Soldering Method	Please refer to the document (Soldering Instructions)
Packing Information	Please refer to the document (Taping, Packaging and Lead Configuration)

Distributor Stock Info

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Part Number: B72220R2321K101

Part Number	Distributor	Buy from Distributor	Stock Quantity	Country	Info Last Updated
B72220R2321K101	DigiKey Click to know about this distributor	Buy Now	350	Multiple	2026/08/09
B72220R2321K101	Avnet Abacus Click to know about this distributor	Buy Now	5,100	DE	2026/08/10
B72220R2321K101	Mouser Electronics Inc. Click to know about this distributor	Buy Now	694	Multiple	2026/08/10

Part Number:

B72220R2321K101

B72220R2321K101

Distributor	DigiKey
Buy from Distributor	Buy Now
Stock Quantity	350
Country	Multiple
Info Last Updated	2026/08/09

B72220R2321K101

Distributor	Avnet Abacus
Buy from Distributor	Buy Now
Stock Quantity	5,100
Country	DE
Info Last Updated	2026/08/10

B72220R2321K101

Distributor	Mouser Electronics Inc.
Buy from Distributor	Buy Now
Stock Quantity	694
Country	Multiple
Info Last Updated	2026/08/10

Please check the latest information on each distributor's website. Powered netCOMPONENTS

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