The 2SD1864 is a silicon NPN epitaxial planar transistor manufactured by Rohm Semiconductor. It is designed for high-current switching applications, particularly in audio amplifiers and power supplies. This transistor boasts a high collector current capability and low saturation voltage, making it suitable for demanding applications.

Applications:

• Audio Amplifiers (Output Stage)
• Power Supplies (Switching Regulators)
• DC-DC Converters
• Motor Drivers

Features:

• High Collector Current (IC) Capability
• Low Saturation Voltage (VCE(sat))
• High hFE (DC Current Gain)
• Fast Switching Speed

Benefits:

• High Power Output: The high collector current and voltage ratings enable the 2SD1864 to deliver significant power in amplifier and power supply applications.
• Efficient Switching: The low saturation voltage minimizes power dissipation during switching, improving overall efficiency.
• High Gain: The high hFE provides substantial amplification, simplifying circuit design and reducing the need for multiple gain stages.
• Reliable Performance: Robust design ensures stable and reliable operation in demanding environments.

Specifications:

The 2SD1864 features a collector-emitter voltage (VCEO) of 80V, a collector current (IC) of 7A, and a collector power dissipation (PC) of 40W. The DC current gain (hFE) is typically between 100 and 320. The saturation voltage (VCE(sat)) is typically around 0.5V at IC = 3A. Package: TO-220.