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Product Index > Discrete Semiconductor Products > FETs - Single > STMicroelectronics STB20NK50ZT4

Please see below table to find a substitute for this part number.

  • Obsolete item; call Digi-Key for more information.
All prices are in US dollars.
Digi-Key Part Number497-4323-1-ND
Price BreakUnit PriceExtended Price
Quantity Available

Manufacturer Part Number


DescriptionMOSFET N-CH 500V 17A D2PAK
Lead Free Status / RoHS StatusLead free / RoHS Compliant
Moisture Sensitivity Level (MSL)1 (Unlimited)
STB20NK50ZT4 STMicroelectronics | 497-4323-1-ND DigiKey Electronics

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When requested quantity exceeds displayed pricing table quantities, a lesser unit price may appear on your order.
You may submit a request for quotation on quantities which are greater than those displayed in the pricing table.

Datasheets STB20NK50Z
Product Photos TO-263
Standard Package ? 1

Discrete Semiconductor Products


FETs - Single

Packaging ? Cut Tape (CT) ? 
FET TypeMOSFET N-Channel, Metal Oxide
FET FeatureStandard
Drain to Source Voltage (Vdss)500V
Current - Continuous Drain (Id) @ 25°C17A (Tc)
Rds On (Max) @ Id, Vgs270 mOhm @ 8.5A, 10V
Vgs(th) (Max) @ Id4.5V @ 100µA
Gate Charge (Qg) @ Vgs119nC @ 10V
Input Capacitance (Ciss) @ Vds2600pF @ 25V
Power - Max190W
Mounting TypeSurface Mount
Package / CaseTO-263-3, D²Pak (2 Leads + Tab), TO-263AB
Supplier Device PackageD2PAK
Other Names497-4323-1
Alternate Package | This part is also available in the following packaging:
Digi-Key Part NumberManufacturer Part NumberManufacturerPackagingQuantity AvailableUnit PriceMinimum Quantity
497-4323-2-NDSTB20NK50ZT4STMicroelectronicsTape & Reel (TR) ? 0
497-4323-6-NDSTB20NK50ZT4STMicroelectronicsDigi-Reel® ? 0

Tape & Reel, Cut Tape and Digi-Reels are all derived from the same manufacturer’s part number. Inventory from Tape & Reel is used to fulfill Cut Tape and Digi-Reel orders and will impact the total quantity available.

Direct Substitute ? 
Digi-Key Part NumberManufacturer Part NumberManufacturerPackagingQuantity AvailableUnit PriceMinimum Quantity
497-8767-1-NDSTB21NK50ZSTMicroelectronicsCut Tape (CT) ? 331 - Immediate
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6:57:00 12/1/2015