SI3443DV The SI3443DV is a P-Channel MOSFET from On Semiconductor with a 20V drain-source voltage and 4.4A continuous drain current. It features 65mOhm on-resistance at 4.5V gate drive and is offered in a SOT-23-6 Thin/TSOT-23-6 package.
Mfr Part #:

SI3443DV

Available from 1 distributors
Mfr Name: On Semiconductor
On Semiconductor
The SI3443DV is a P-Channel MOSFET from On Semiconductor with a 20V drain-source voltage and 4.4A continuous drain current. It features 65mOhm on-resistance at 4.5V gate drive and is offered in a SOT-23-6 Thin/TSOT-23-6 package.
✓ Total Stock: 4,045 pcs
$ Price Range: $0.99

SI3443DV Available from 1 distributor

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✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
4,045 pcs
4045 pcs On Request 1 On Request On Request 05/6+ On Request On Request

SI3443DV 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

SI3443DV Description

Short technical summary and product information.

The SI3443DV is a P-Channel enhancement mode MOSFET manufactured by On Semiconductor. It is designed for low-voltage power management and load switching applications. The device features a maximum drain-source voltage of 20V and a continuous drain current rating of 4.4A at ambient temperature. With a maximum on-resistance of 65mOhm at Vgs = 4.5V and Id = 4A, it provides efficient switching performance.

 

The MOSFET utilizes advanced MOSFET technology and offers low gate charge (10nC max at 4.5V) and low input capacitance (640pF max at Vds = 10V), enabling fast switching with reduced drive requirements. The gate threshold voltage is 1.5V max at Id = 250µA, ensuring compatibility with low-voltage logic levels. The device supports gate drive voltages of 2.5V and 4.5V for optimized Rds(on).

 

The SI3443DV is supplied in a compact SOT-23-6 Thin (TSOT-23-6) surface-mount package, making it suitable for space-constrained designs. It operates over a junction temperature range of -55°C to 150°C. With a maximum power dissipation of 1.6W at ambient temperature, thermal management should be considered in high-current applications.

 

This P-Channel MOSFET is commonly used in battery protection circuits, power load switches and DC-DC converter applications where low voltage and low on-resistance are required.

SI3443DV Quick Information

Product Type: P-Channel MOSFET
Series: SuperSOT
Canonical Name: P-Channel MOSFET, 20V, 4.4A, SOT-23-6
Subcategory: Single P-Channel MOSFET

SI3443DV Compliance

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

SI3443DV Estimated Pricing

Qty Low High
1+ $0.99 $0.99

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

SI3443DV Features

  • P-Channel MOSFET with 20V drain-source voltage.
  • Continuous drain current rating of 4.4A.
  • Low on-resistance of 65mOhm at 4.5V drive.
  • Low gate charge of 10nC for fast switching.
  • SOT-23-6 Thin surface-mount package.

SI3443DV Applications

  • Used in battery protection circuits.
  • Ideal for power load switching.
  • Suitable for DC-DC converter applications.
  • Used in low-voltage power management.

SI3443DV FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating temperature range of the SI3443DV?

-55°C to 150°C junction temperature.

What package is the SI3443DV available in?

SOT-23-6 Thin and TSOT-23-6.

What is the maximum drain-source voltage?

20V.

What is the continuous drain current rating?

4.4A at ambient temperature.

What is the typical on-resistance?

Maximum 65mOhm at Vgs=4.5V and Id=4A.

What is the gate threshold voltage?

Maximum 1.5V at Id=250µA.

What is the maximum power dissipation?

1.6W at ambient temperature.

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