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STD3N40K3 The STMicroelectronics STD3N40K3 is an N-Channel MOSFET designed for power switching applications. It features a 400V drain-to-source voltage and a 2A continuous current rating.
Mfr Part #:

STD3N40K3

Available from 1 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
The STMicroelectronics STD3N40K3 is an N-Channel MOSFET designed for power switching applications. It features a 400V drain-to-source voltage and a 2A continuous current rating.
✓ Total Stock: 2,500 pcs
$ Price Range: $2.56

STD3N40K3 Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Smaxon Electronics ✓
Non-Authorised Inventory information
2,500 pcs
On Request
2500 pcs On Request 1 On Request On Request 14+ 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.

STD3N40K3 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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STD3N40K3 Description

Short technical summary and product information.

The STMicroelectronics STD3N40K3 is a single N-Channel MOSFET designed for various electronic applications requiring efficient power switching. This component boasts a high drain-to-source voltage (Vdss) of 400V and can handle a continuous current of 2A (Tc).

 

Key electrical characteristics include a maximum on-resistance (Rds On) of 3.4 Ohms at 900mA and 10V, an input capacitance (Ciss) of 165pF at 50V, and a gate charge (Qg) of 11nC at 10V. The gate-to-source voltage (Vgs) maximum is ±30V, with a gate threshold voltage (Vgs(th)) of 4.5V at 50µA.

 

Packaged in a surface-mount DPAK (TO-252-3) package, the STD3N40K3 operates within a temperature range of -55°C to 150°C (TJ). Its robust construction and specifications make it suitable for use in power supplies, motor control, and other demanding applications where reliable switching performance is critical.

STD3N40K3 Quick Information

Product Type: MOSFET
Canonical Name: STD3N40K3 N-Channel MOSFET
Subcategory: N-Channel

STD3N40K3 Compliance

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

STD3N40K3 Estimated Pricing

Qty Low High
1+ $2.56 $2.56

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

STD3N40K3 Features

  • 400V drain-to-source voltage rating.
  • 2A continuous current capability.
  • Low 3.4 Ohm maximum on-resistance.
  • Surface mount DPAK package.
  • Wide operating temperature range.

STD3N40K3 Applications

  • Suitable for power supply circuits.
  • Used in motor control applications.
  • Ideal for general power switching.
  • Applicable in DC-DC converters.

STD3N40K3 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the maximum drain-source voltage of the STD3N40K3?

The maximum drain-source voltage is 400V.

What is the continuous drain current rating of the STD3N40K3?

The continuous drain current is 2A at the case temperature.

What is the on-resistance of the STD3N40K3?

The maximum on-resistance is 3.4Ohm at Id=900mA and Vgs=10V.

What is the gate threshold voltage of the STD3N40K3?

The maximum gate threshold voltage is 4.5V at Id=50µA.

What is the operating temperature range of the STD3N40K3?

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

What is the package type of the STD3N40K3?

The device is available in TO-252-3 (DPAK) surface mount package.

What is the gate charge of the STD3N40K3?

The maximum gate charge is 11nC at Vgs=10V.

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