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STW21N90K5 The STMicroelectronics STW21N90K5 is an N-Channel Power MOSFET designed for switching applications. It features a 900V drain-source voltage and 18.5A continuous drain current.
Mfr Part #:

STW21N90K5

Available from 3 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
The STMicroelectronics STW21N90K5 is an N-Channel Power MOSFET designed for switching applications. It features a 900V drain-source voltage and 18.5A continuous drain current.
✓ Total Stock: 6,504 pcs
$ Price Range: $2.56

STW21N90K5 Available from 3 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Risen Electronics ✓
Non-Authorised Inventory information
3,000 pcs
On Request
3000 pcs On Request 1 On Request On Request On Request On Request 2026-02-16 21:33:16
Xingangxin ✓
Non-Authorised Inventory information
1,794 pcs
On Request
1794 pcs On Request 1 On Request On Request On Request On Request On Request
Fe Components ✓
Non-Authorised Inventory information
1,710 pcs
On Request
1710 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

STW21N90K5 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
Technology
Vgs (Max)
Vgs(th) (Max) @ Id
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STW21N90K5 Description

Short technical summary and product information.

The STMicroelectronics STW21N90K5 is an N-channel Power MOSFET utilizing SuperMESH™ 5 technology. This device is designed for switching applications, offering a high drain-source voltage of 900V and a continuous drain current of 18.5A.

 

Key electrical characteristics include a maximum on-resistance of 0.299 Ohms at 9A and 10V, a gate charge of 43 nC maximum at 10V, and a gate threshold voltage of 5V maximum at 100µA. The input capacitance is 1645 pF maximum at 100V.

 

With a maximum power dissipation of 250W at a case temperature and an operating temperature range of -55°C to 150°C, this MOSFET is suitable for demanding applications. It is housed in a TO-247-3 package and supports through-hole mounting.

 

The SuperMESH™ 5 technology provides a reduction in on-resistance and gate charge, contributing to superior power density and high efficiency in its applications.

STW21N90K5 Quick Information

Product Type: Power MOSFET
Series: SuperMESH 5
Canonical Name: STMicroelectronics STW21N90K5 N-Channel Power MOSFET
Subcategory: N-Channel

STW21N90K5 Compliance

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

STW21N90K5 Estimated Pricing

Qty Low High
1+ $2.56 $2.56

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

STW21N90K5 Features

  • 900V drain-source voltage rating.
  • 18.5A continuous drain current.
  • Low 0.299 Ohm max on-resistance.
  • 43 nC maximum gate charge.
  • TO-247-3 through-hole package.

STW21N90K5 Applications

  • High-voltage DC-DC power converters.
  • Switching power supplies and inverters.
  • Motor control and drive circuits.
  • Power factor correction circuits.

STW21N90K5 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the maximum drain to source voltage of the STW21N90K5?

The maximum drain to source voltage is 900V.

What is the continuous drain current rating of the STW21N90K5?

The maximum continuous drain current is 18.5A at case temperature.

What is the on-resistance of the STW21N90K5?

The maximum on-resistance is 0.299 Ohm at 9A drain current and 10V gate-source voltage.

What is the operating temperature range of the STW21N90K5?

The operating junction temperature range is -55°C to 150°C.

What package does the STW21N90K5 come in?

The STW21N90K5 is available in a TO-247-3 through-hole package.

What is the gate charge of the STW21N90K5?

The maximum gate charge is 43 nC at 10V gate-source voltage.

What is the input capacitance of the STW21N90K5?

The maximum input capacitance is 1645 pF at 100V drain-source voltage.

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