Strap Varistors

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B72240L0551K100

Product Status	Production
Applications	IndustrialIndustrial
Type	LS40K550QP
Brand	TDK
Environmental Compliance Click to learn more about these icons

Voltage Protection Devices,Strap Varistors:LS40_QP

Images are for reference only and show example products.

3D Model

Size

Body Width	37.50mm Max.
Body Height	46.00mm Max.
Body Thickness	12.30mm Max.
Detail Size Information	Please refer to the data sheet

Electrical Characteristics

Maximum Operating Voltage [DC]	745V
Maximum Operating Voltage [AC]	550Vrms
Nominal DischargeCurrent In [8/20μs, 15times]	20kA
Maximum Surge Current Imax [8/20µs, 1time]	40kA
Energy Absorption	960J
Capacitance (Typ.)	1.4nF

Other

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

Distributor Stock Info

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Part Number: B72240L0551K100

Part Number	Distributor	Buy from Distributor	Stock Quantity	Country	Info Last Updated
B72240L0551K100	DigiKey Click to know about this distributor	Buy Now	179	Multiple	2026/04/27
B72240L0551K100	Mouser Electronics Inc. Click to know about this distributor	Buy Now	380	Multiple	2026/04/28

Part Number:

B72240L0551K100

B72240L0551K100

Distributor	DigiKey
Buy from Distributor	Buy Now
Stock Quantity	179
Country	Multiple
Info Last Updated	2026/04/27

B72240L0551K100

Distributor	Mouser Electronics Inc.
Buy from Distributor	Buy Now
Stock Quantity	380
Country	Multiple
Info Last Updated	2026/04/28

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

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