ThermoFuse Varistors

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B72225T4321K101

Product Status	Obsolete 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	ETFV25K320E4
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)	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	510V
Maximum Operating Voltage [DC]	420V
Maximum Operating Voltage [AC]	320Vrms
Nominal DischargeCurrent In [8/20μs, 15times]	10kA
Maximum Surge Current Imax [8/20µs, 1time]	20kA
Energy Absorption	445J
Capacitance (Typ.)	810pF

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: B72225T4321K101

Part Number	Distributor	Buy from Distributor	Stock Quantity	Country	Info Last Updated
B72225T4321K101	Melchioni s.p.a. Click to know about this distributor		8,000	IT	2026/07/18

Part Number:

B72225T4321K101

B72225T4321K101

Distributor	Melchioni s.p.a.
Buy from Distributor
Stock Quantity	8,000
Country	IT
Info Last Updated	2026/07/18

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