SI4421DY-T1-E3 The Vishay Dale SI4421DY-T1-E3 is a P-Channel MOSFET designed for load switching applications. It features a 20V drain-source voltage and a low on-resistance.
Mfr Part #:

SI4421DY-T1-E3

Available from 2 distributors
Mfr Name: Vishay
Vishay
The Vishay Dale SI4421DY-T1-E3 is a P-Channel MOSFET designed for load switching applications. It features a 20V drain-source voltage and a low on-resistance.
✓ Total Stock: 361,615 pcs
$ Price Range: $0.99

SI4421DY-T1-E3 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
361,600 pcs
361600 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
15 pcs
15 pcs On Request 1 On Request On Request On Request On Request On Request

SI4421DY-T1-E3 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
Halogen Free
Mounting Type
Operating Temperature
Power Dissipation (Max)
Rds On (Max) @ Id, Vgs
Supplier Device Package
Technology
Vgs (Max)
Vgs(th) (Max) @ Id

SI4421DY-T1-E3 Description

Short technical summary and product information.

The Vishay Dale SI4421DY-T1-E3 is a P-Channel TrenchFET® Power MOSFET with a drain-source voltage of 20V. It is designed for applications such as load switching and game stations.

 

This MOSFET offers a low on-state resistance, with a maximum of 8.75mOhm at a gate-source voltage of -4.5V and a drain current of -14A. It can handle a continuous drain current of up to 14A at 25°C ambient temperature and a pulsed drain current of 40A. The operating temperature range is from -55°C to 150°C.

 

The device is housed in a standard 8-SOIC package and is designed for surface mounting. It is available in RoHS3 compliant and Halogen-free options.

 

Key electrical characteristics include a gate threshold voltage of 0.8V maximum at 850µA and a gate charge of 125nC maximum at 4.5V. The maximum power dissipation is 1.5W at 25°C ambient temperature.

SI4421DY-T1-E3 Quick Information

Product Type: MOSFET
Canonical Name: Vishay Siliconix Si4421DY P-Channel 20V MOSFET
Subcategory: P-Channel

SI4421DY-T1-E3 Compliance

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

SI4421DY-T1-E3 Estimated Pricing

Qty Low High
1+ $0.99 $0.99

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

SI4421DY-T1-E3 Features

  • P-Channel 20V Power MOSFET
  • Low Rds(on) of 8.75mOhm at 4.5V
  • Continuous Drain Current up to 14A
  • Surface mount 8-SOIC package
  • Halogen-free option available

SI4421DY-T1-E3 Applications

  • Used in portable battery-powered equipment switching.
  • Ideal for automotive load switch implementations.
  • Suitable for DC motor control driver stages.
  • Applied in industrial power distribution boards.

SI4421DY-T1-E3 FAQs

6 frequently asked questions generated from this part’s specifications.
What is the drain-source voltage of the SI4421DY-T1-E3?

The drain-source voltage (Vds) is 20V.

What is the maximum continuous drain current for the SI4421DY-T1-E3?

The maximum continuous drain current is 14A at 25°C ambient temperature.

What is the on-resistance (Rds(on)) of the SI4421DY-T1-E3?

The Rds(on) is a maximum of 8.75mOhm at 14A drain current and -4.5V gate-source voltage.

What is the package type for the SI4421DY-T1-E3?

The SI4421DY-T1-E3 is supplied in an 8-SOIC package for surface mounting.

What is the operating temperature range for this MOSFET?

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

Is the SI4421DY-T1-E3 RoHS compliant?

Yes, the SI4421DY-T1-E3 is RoHS3 Compliant.

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