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BC817-16

BC817-16 Description

The BC817-16 from Diotec Semiconductor is a high-performance NPN bipolar junction transistor (BJT) housed in a compact SOT-23 surface-mount package. Designed for general-purpose amplification and switching applications, it offers a collector-emitter voltage (Vce) rating of 45V and a maximum collector current (Ic) of 800mA, making it suitable for medium-power circuits. With a transition frequency (fT) of 100MHz, it ensures efficient high-frequency operation. The transistor features a low Vce saturation voltage of 700mV @ 50mA, 500mA, minimizing power loss in switching applications. Its DC current gain (hFE) of 100 @ 100mA, 1V provides stable amplification characteristics.

BC817-16 Features

• High Current Handling: Supports up to 800mA collector current, ideal for driving relays, LEDs, and small motors.
• Low Saturation Voltage: 700mV @ 500mA ensures minimal power dissipation in switching modes.
• High Transition Frequency: 100MHz enables reliable performance in RF and high-speed switching circuits.
• Surface-Mount Design: SOT-23 package allows for compact PCB layouts in space-constrained applications.
• Wide Voltage Range: 45V Vce rating provides flexibility in various power supply designs.
• RoHS & REACH Compliance: Meets environmental standards, though RoHS status is marked as "Not applicable" per manufacturer specifications.

BC817-16 Applications

• Switching Circuits: Ideal for load switching in power management systems due to low Vce(sat).
• Amplification: Used in audio and signal amplification stages with its high hFE and linear gain.
• LED Drivers: Efficiently controls LED arrays or backlighting with its high Ic capability.
• Motor Control: Suitable for small DC motor drivers in consumer electronics and automation.
• RF Modules: The 100MHz fT makes it a candidate for low-noise RF amplifiers and oscillators.

Conclusion of BC817-16

The BC817-16 stands out as a versatile NPN BJT for both switching and amplification tasks, combining high current capacity, low saturation loss, and compact packaging. Its 100MHz transition frequency and 45V breakdown voltage make it superior to lower-rated alternatives in demanding applications. While lacking RoHS certification, its performance in LED drivers, motor control, and RF circuits ensures broad usability. Engineers seeking a cost-effective, high-performance SMT transistor will find the BC817-16 a reliable choice.