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SI4403DDY The Vishay SI4403DDY is a P-Channel MOSFET designed for power management applications. It features a -20V drain-source voltage and low on-resistance.
Mfr Part #:

SI4403DDY

Available from 1 distributors
Mfr Name: Vishay
Vishay
The Vishay SI4403DDY is a P-Channel MOSFET designed for power management applications. It features a -20V drain-source voltage and low on-resistance.
✓ Total Stock: 463,590 pcs
$ Price Range: $2.81

SI4403DDY Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Romaks Technologies ✓
Non-Authorised Inventory information
463,590 pcs
On Request
463590 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.

SI4403DDY Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Gate Charge
Halogen Free
Mounting Type
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SI4403DDY Description

Short technical summary and product information.

The Vishay SI4403DDY is a P-Channel power MOSFET from the TrenchFET Gen III series. It is rated for a drain-source voltage of -20V and offers low on-resistance values, with a maximum of 0.0140 Ω at VGS = -4.5V.

 

This MOSFET is suitable for applications such as adapter switches, load switches, and DC/DC converters, particularly in battery-operated, mobile, and wearable devices requiring efficient power management and high-speed switching.

 

The device comes in an SO-8 package and is surface-mounted. It is designed to meet RoHS3 compliance standards and is halogen-free.

 

Key electrical characteristics include a continuous drain current of up to -15.4A at 25°C case temperature and a maximum power dissipation of 5W at 25°C case temperature. The operating junction and storage temperature range is -55°C to +150°C.

SI4403DDY Quick Information

Product Type: MOSFET
Canonical Name: SI4403DDY P-Channel MOSFET
Subcategory: P-Channel

SI4403DDY Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Lead (Pb)-free

SI4403DDY Estimated Pricing

Qty Low High
1+ $2.81 $2.81

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

SI4403DDY Features

  • P-Channel TrenchFET Gen III MOSFET
  • -20 V drain-source voltage rating
  • Low RDS(on) down to 0.0140 Ω
  • SO-8 surface mount package
  • RoHS3 Compliant and Halogen-Free

SI4403DDY Applications

  • Adapter and load switch applications
  • DC/DC converter circuits
  • Power management in mobile devices
  • High-speed switching requirements
  • Battery-operated systems

SI4403DDY FAQs

6 frequently asked questions generated from this part’s specifications.
What is the maximum drain-source voltage of the SI4403DDY?

-20 V.

What is the package type of the SI4403DDY?

SO-8.

What is the operating temperature range?

-55 to +150 °C.

What is the continuous drain current rating at 25°C case temperature?

-15.4 A.

What is the typical gate charge?

39 nC.

What is the on-resistance at VGS = -4.5V?

0.014 Ω maximum.

SI4403DDY Alternate Parts

Same form/fit/function or matching attribute configuration across different manufacturers.
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BSC014NE2LSI
BSC014NE2LSI
Infineon Technologies
The Infineon Technologies BSC014NE2LSI is an N-channel Power MOSFET with a 25V drain-source voltage. It offers a low on-resistance of 1.4 mΩ maximum at VGS=4.5V.
View Part
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