STW20NB50 The STMicroelectronics STW20NB50 is an N-Channel MOSFET designed for high current, high speed switching applications. It offers a 500V drain-source voltage and 20A continuous current.
Mfr Part #:

STW20NB50

Available from 2 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
The STMicroelectronics STW20NB50 is an N-Channel MOSFET designed for high current, high speed switching applications. It offers a 500V drain-source voltage and 20A continuous current.
✓ Total Stock: 4,710 pcs
$ Price Range: $2.56

STW20NB50 Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
4,700 pcs
4700 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
10 pcs
10 pcs On Request 1 On Request On Request On Request On Request On Request

STW20NB50 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Drain to Source Voltage (Vdss)
Drive Voltage (Max Rds On, Min Rds On)
FET Type
Gate Charge (Qg) (Max) @ Vgs
Input Capacitance (Ciss) (Max) @ Vds
Mounting Type
Operating Temperature
Power Dissipation (Max)
Rds On (Max) @ Id, Vgs
Storage Temperature
Supplier Device Package
Technology
Vgs (Max)
Vgs(th) (Max) @ Id

STW20NB50 Description

Short technical summary and product information.

The STMicroelectronics STW20NB50 is a PowerMESH N-Channel MOSFET built using advanced high voltage technology. It is designed for applications requiring high current and high speed switching, such as switch mode power supplies (SMPS) and DC-AC converters for welding equipment and uninterruptible power supplies.

 

Key electrical specifications include a maximum drain-source voltage of 500V and a continuous drain current of 20A at 25°C. The typical Rds(on) is 0.22 Ohm at 10A and 10V gate drive, with a maximum of 0.25 Ohm. It features extremely high dv/dt capability, ±30V gate-to-source voltage rating, and minimized gate charge.

 

This MOSFET is housed in a TO-247-3 package and is suitable for through-hole mounting. It has a maximum power dissipation of 250W at 25°C and an operating junction temperature up to 150°C. The component is 100% avalanche tested, ensuring reliability in demanding applications.

 

Applications include high current, high speed switching, switch mode power supplies (SMPS), and DC-AC converters for welding equipment and uninterruptible power supplies, as well as motor drives.

STW20NB50 Quick Information

Product Type: MOSFET
Canonical Name: STMicroelectronics STW20NB50 N-Channel Power MOSFET
Subcategory: N-Channel

STW20NB50 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

STW20NB50 Estimated Pricing

Qty Low High
1+ $2.56 $2.56

Estimated market price range - modelled values for guidance only, not live distributor offers.

STW20NB50 Features

  • 500V drain-source voltage rating.
  • 20A continuous drain current.
  • Low Rds(on) of 0.25 Ohm maximum.
  • High dv/dt capability.
  • TO-247 package for through-hole mounting.

STW20NB50 Applications

  • Ideal for high speed switching.
  • Used in switch mode power supplies.
  • Suitable for DC-AC converters.
  • Applications in welding equipment.
  • Power supplies and motor drives.

STW20NB50 FAQs

6 frequently asked questions generated from this part’s specifications.
What is the maximum drain-to-source voltage (Vdss) of the STW20NB50?

The maximum drain-to-source voltage (Vdss) is 500V.

What is the continuous drain current rating of the STW20NB50?

The continuous drain current is 20A at a case temperature of 25°C, and 12.7A at 100°C.

What is the on-resistance (Rds(on)) of the STW20NB50?

The maximum on-resistance is 250mOhm at a gate-source voltage of 10V and drain current of 10A.

What package does the STW20NB50 come in?

The STW20NB50 is available in a TO-247-3 through-hole package.

What is the maximum operating junction temperature for the STW20NB50?

The maximum operating junction temperature is 150°C.

What is the gate threshold voltage (Vgs(th)) of the STW20NB50?

The maximum gate threshold voltage is 5V at a drain current of 250µA.

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