IRF3808PBF | Datasheet | PDF Infineon Technologies

IRF3808 MOSFET Overview

The IRF3808 is a high-performance N-channel power MOSFET made by Infineon. It comes in a TO-220AB package and is used in power management and control applications requiring high current and efficiency. With its low on-resistance, this MOSFET handles large currents, making it ideal for motor drives, switch-mode power supplies, and inverters.

Key Features:

Drain-Source Voltage (V_DSS): 75V
Maximum Continuous Drain Current (I_D): 140A (at 25°C)

R_DS(ein) (On-state Resistance): Typical value 5.9 mΩ, Maximum value 7.0 mΩ (V_GS=10V, I_D=82A)

Pulse Drain Current (I_DM): 550A (maximum)

Gate Charge (Q_G): Typical value 150 nC, Maximum value 220 nC

Package Type: TO-220AB

Operating Junction Temperature: -55°C to +175°C

Maximum Gate-Source Voltage (V_GS): ±20V

High-frequency switching capability, with low switching losses.

Anwendungen:

Power Management Systems: Suitable for efficient switch-mode power supplies, DC-DC converters, UPS, and more.

Motor Drives: Applications in DC motor drivers, variable frequency drives, and servo drives.

Automotive Electronics: Used in automotive battery management systems, integrated starter alternators (ISA), etc.

Solar Inverters: High-efficiency inverter designs for renewable energy systems.

IRF3808 PINOUT

When working with this MOSFET, make sure the gate voltage (VGS) stays within ±20V — going over that can easily damageit.

For the drain-source voltage (VDSS), keep it under75V, and don’t let the current go beyond140A. It might seem fine at first, butpushing those limits will shorten its life or cause it to fail altogether.

Beforepowering anything up, always take a second to double-check the pinorientation. It’s a small step, but getting it wrong can lead tobig problems.

And one more tip — the gate is sensitive to staticEven a little Ecan cause issues, so it’s worth grounding yourself or using protection when handling it.

IRF3808 Equivalent​

Selection Advice

Stromspannung: The VDS rating of the replacement model must be higher than the original to avoid breakdown.
Aktuell: The IDON of the replacement model must be greater than the original to prevent overheating.
RDS(on): The RDS(on) should be smaller than the original, or the power consumption will increase.
Paket: The package and pinout must be the same as the original, or it won’t work.