ThermoFuse Varistors

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B72225T4421K101

Product Status	EOL Announced Recommended Alternate Part No. : Contact Discontinue Issue Date : Oct.2, 2025 Last Purchase Order Date : Jan.16, 2026 Last Shipment Date : Apr.17, 2026
Applications	Communication Systems Industrial
Type	ETFV25K420E4
Brand	TDK
Environmental Compliance Click to learn more about these icons

Voltage Protection Devices,ThermoFuse Varistors:ETFV

Images are for reference only and show example products.

3D Model

Size

W (Width)	30.20mm Max.
T (Thickness)	11.20mm Max.
H (Height)	35.20mm Max.
Detail Size Information	Please refer to the data sheet

Electrical Characteristics

Varistor Voltage @ 1mA	680V
Maximum Operating Voltage [DC]	560V
Maximum Operating Voltage [AC]	420Vrms
Nominal DischargeCurrent In [8/20μs, 15times]	10kA
Maximum Surge Current Imax [8/20µs, 1time]	20kA
Energy Absorption	700J
Capacitance (Typ.)	630pF

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: B72225T4421K101

Part Number	Distributor	Buy from Distributor	Stock Quantity	Country	Info Last Updated
B72225T4421K101	Buerklin GmbH & Co. Click to know about this distributor	Buy Now	319	DE	2026/04/08

Part Number:

B72225T4421K101

B72225T4421K101

Distributor	Buerklin GmbH & Co.
Buy from Distributor	Buy Now
Stock Quantity	319
Country	DE
Info Last Updated	2026/04/08

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Characteristic Graph

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Voltage vs. Current

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