ThermoFuse Varistors

Name: B72225T4171K101 : Detailed Information | Voltage / Current / Temperature Protection Devices - Voltage Protection Devices - ThermoFuse Varistors | TDK Product Center
Brand: TDK
SKU: B72225T4171K101

Product Top Page

Catalog

Search by Characteristics

Search by Part Number

Tech Notes

Technical Support Tools

B72225T4171K101

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	ETFV25K175E4
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	270V
Maximum Operating Voltage [DC]	225V
Maximum Operating Voltage [AC]	175Vrms
Nominal DischargeCurrent In [8/20μs, 15times]	10kA
Maximum Surge Current Imax [8/20µs, 1time]	20kA
Energy Absorption	245J
Capacitance (Typ.)	1.5nF

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)