BAS21A 200V 200mA Switching Diode – SOT-23 | Hottech

The High-Speed Switching Diode series from Hottech is designed for fast switching applications in low-power and signal-level circuits. These diodes offer excellent switching performance with low forward voltage drop and fast recovery characteristics, making them ideal for high-frequency and high-speed electronic designs.

With a voltage range typically from 35V to 100V (and higher for select models) and current ratings from 100mA to 500mA, this series supports a wide range of general-purpose switching and signal processing applications. The fast switching capability ensures minimal delay and reduced signal distortion in digital and analog circuits.

Packaged in compact SOT-23 and SOD-323 surface-mount formats, these diodes are optimized for modern PCB layouts where space efficiency and performance are critical.

This series is widely used in electric tools, instrumentation, smart home devices, robotic systems, display modules, and various consumer electronics requiring reliable and fast switching components.

✅ Key Features

• Fast switching speed and quick recovery time
• Low forward voltage drop (VF)
• Voltage range: 35V to 100V+
• Current range: 100mA to 500mA
• Suitable for high-frequency applications
• Compact SOT-23 and SOD-323 packages
• Low leakage current
• High reliability and stable performance

✅ Applications

• Electric tools
• Instrumentation and measurement equipment
• Sweeping robots and automation devices
• Smart locks and smart home systems
• Display and driver circuits
• Signal switching and logic circuits
• Consumer electronics
• General-purpose high-speed switching applications