New Original Stock Mos IRFB4321 IRFB4321PBF SP001577790 MOSFET N-Channel 150 V 85A (Tc) 350W (Tc) Through Hole TO-220AB

Mosfet IRFB4321 Series IRFB4321PBF SP001577790：Order today, Ships today. MOSFET N-CH 150V 85A TO220AB

IRFB4321 is an N-channel enhancement-mode power MOSFET launched by Infineon. It adopts TO-220AB package and is designed for medium-high voltage and high current applications. With its excellent electrical performance, thermal management capabilities and reliability, it is widely used in industrial control, automotive electronics, power management and other fields.

Core features
1. Withstand voltage and current: The drain-source voltage (Vdss) reaches 150V, and the continuous drain current (Id) can reach 85A at 25℃. It can withstand transient high voltage and high current shocks and is suitable for high power density scenarios.
2. On-resistance: The on-resistance (Rds(on)) is as low as 15mΩ (typical value, @10V gate voltage), which significantly reduces conduction loss and improves system efficiency.
3. Switching speed: The gate charge (Qg) is 110nC (@10V), the input capacitance (Ciss) is 4460pF (@50V), supporting high-frequency switching operations, reducing switching losses, and optimizing dynamic response.
4. Threshold voltage: The gate-source threshold voltage (Vgs(th)) is typically 4V to 5V (@250μA), compatible with standard CMOS or TTL logic levels, and the drive circuit design is simple.
Thermal management and packaging
5. Operating temperature: Supports a wide temperature range of -55℃ to 175℃ to adapt to extreme environments.
6. Package advantages: The TO-220AB package combines a metal heat sink and insulation design, and can be directly mounted to the heat sink, balancing heat dissipation performance and installation convenience, and is suitable for high-power industrial equipment.
7. Power dissipation: The maximum power dissipation is 350W (Tc), ensuring stable operation under high load.
8. Gate voltage rating: ±30V maximum, enhancing device robustness.
9. Avalanche energy: fully characterized avalanche SOA (safe operating area) to improve device reliability under abnormal conditions.
10. Electromagnetic compatibility: optimized body diode recovery characteristics, improved switching noise and EMI performance.

Application areas

1. Motor drive: drive DC motors, stepper motors and servo systems, control the motion accuracy and response speed of robots, CNC machine tools and other equipment.
2. Frequency converter and inverter: used for three-phase motor speed regulation, photovoltaic inverter, to achieve efficient conversion and control of electric energy.
3. Automotive electronic power system: manage battery pack charging and discharging, drive electric water pumps, oil pumps and other auxiliary equipment.
4. Automotive electronic body control: control window lifting, seat adjustment, lighting system, etc., to improve driving comfort and safety.
5. Power management
6. Switching power supply: Build high-efficiency AC-DC/DC-DC converters suitable for scenarios such as server power supply and communication base stations.
7. New energy system: Integrated in solar inverters and energy storage systems to optimize the efficiency of renewable energy utilization.
8. Home appliances: Drive air-conditioning compressors and refrigerator inverters to achieve energy saving and silent operation.
9. Portable devices: Design compact power modules to extend the battery life of laptops and power tools.