STW34NB20 The STW34NB20 is an N-Channel MOSFET from STMicroelectronics with a 200V drain-source voltage and 34A continuous current capability. It features a low on-resistance of 75mOhm at 17A and 10V gate drive.
Mfr Part #:

STW34NB20

Available from 2 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
The STW34NB20 is an N-Channel MOSFET from STMicroelectronics with a 200V drain-source voltage and 34A continuous current capability. It features a low on-resistance of 75mOhm at 17A and 10V gate drive.
✓ Total Stock: 10,185 pcs
$ Price Range: $2.56

STW34NB20 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
5,685 pcs
5685 pcs On Request 1 On Request On Request 17+ On Request On Request
Non-Authorised Inventory information
4,500 pcs
4500 pcs On Request 1 On Request On Request On Request On Request On Request

STW34NB20 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
Supplier Device Package
Supplier Package
Technology
Vgs (Max)
Vgs(th) (Max) @ Id

STW34NB20 Description

Short technical summary and product information.

This STW34NB20 MOSFET from STMicroelectronics is designed for high-performance applications. It features an N-Channel configuration with a maximum drain-source voltage of 200V and a continuous drain current of 34A at 25°C.

 

The device boasts a low static drain-source on-resistance (Rds(on)) of 75mOhm, typically measured at 17A drain current and 10V gate-source voltage. The gate threshold voltage is a maximum of 5V at 250µA, and the maximum gate-source voltage is ±30V. Input capacitance (Ciss) is rated at 3300pF at 25V, and gate charge (Qg) is a maximum of 80nC at 10V.

 

With a maximum power dissipation of 180W at 25°C, this MOSFET is suitable for demanding power applications. It operates at junction temperatures up to 150°C. The component is housed in a TO-247-3 package and utilizes Through Hole mounting.

 

Key electrical characteristics include a typical Rds(on) of 0.062 Ohm, extremely high dv/dt capability, 100% avalanche tested, very low intrinsic capacitances, and minimized gate charge. Applications include Switch Mode Power Supplies (SMPS), DC-AC converters for welding equipment and uninterruptible power supplies, and high current, high-speed switching.

STW34NB20 Quick Information

Product Type: MOSFET
Canonical Name: STMicroelectronics STW34NB20 N-Channel MOSFET
Subcategory: Single

STW34NB20 Compliance

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

STW34NB20 Estimated Pricing

Qty Low High
1+ $2.56 $2.56

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

STW34NB20 Features

  • N-Channel MOSFET with 200V drain-source voltage.
  • Low on-resistance: 75mOhm maximum at 17A, 10V.
  • High continuous drain current: 34A at 25°C.
  • TO-247 package for through-hole mounting.
  • Suitable for high-speed switching applications.

STW34NB20 Applications

  • Used in Switch Mode Power Supplies.
  • Applicable for DC-AC converters.
  • Ideal for welding equipment power.
  • Suitable for uninterruptible power supplies.
  • Designed for high current switching.

STW34NB20 FAQs

6 frequently asked questions generated from this part’s specifications.
What is the maximum drain-source voltage for the STW34NB20?

The maximum drain-source voltage (Vdss) for the STW34NB20 is 200V.

What is the typical on-resistance of the STW34NB20?

The typical on-resistance (Rds(on)) for the STW34NB20 is 0.062 Ohm at 17A and 10V.

What is the continuous drain current rating for the STW34NB20?

The continuous drain current rating for the STW34NB20 is 34A at a case temperature of 25°C.

What is the package type for the STW34NB20?

The STW34NB20 comes in a TO-247-3 package.

How is the STW34NB20 mounted?

The STW34NB20 is mounted using the Through Hole method.

What is the maximum operating junction temperature for this MOSFET?

The maximum operating junction temperature (Tj) for the STW34NB20 is 150°C.

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