FI4019HG Datasheet PDF – 150V, 8.7A, Digital Audio MOSFET – IR

Part Number: FI4019HG

Function: 150V, 8.7A, Digital Audio MOSFET

Package: TO-220 Pin type

Manufacturer: International Rectifier, ( )

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FI4019HG Image


This Digital Audio MOSFET Half-Bridge is specifically designed for Class D audio amplifier applications. It consists of two power MosFET

switches connected in half-bridge onfiguration. The latest process is used to achieve low on-resistance per silicon area. Furthermore, Gate charge, body-diode reverse recovery, and internal Gate resistance are optimized to improve key Class D audio amplifier performance factors such as efficiency, THD and EMI. These combine to make this Half-Bridge a highly efficient, robust and reliable device for Class D audio amplifier applications.


1. Integrated Half-Bridge Package

2. Reduces the Part Count by Half

3. Facilitates Better PCB Layout

4. Key Parameters Optimized for Class-D

5. Audio Amplifier Applications

6. Low RDS(ON)for Improved Efficiency

7. Low Qg and Qsw for Better THD and Improved Efficiency

8. Low Qrr for Better THD and Lower EMI

9. Can Delivery up to 200W per Channel into 8Ω Load in Half-Bridge Configuration Amplifier

10. Lead-Free Package

11. Halogen-Free


FI4019HG Datasheet

Absolute Maximum Ratings (Ta = 25°C)

1. Drain to source voltage: VDSS = 150 V

2. Gate to source voltage: VGSS = ± 20 V

3. Drain current: ID = 8.7 A (Tc = 25°C)

4. Drain Power Dissipation: Pd = 18 W (Tc = 25°C)

5. Channel temperature: Tch = 150 °C

6. Storage temperature: Tstg = -55 to +150 °C

FI4019HG Datasheet PDF

FI4019HG pdf

Other data sheets are available within the file: FI4019HG-117P, IRFI4019HG-117P

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