1SMA5919BT3G

The 1SMA5919BT3G is a Zener diode manufactured by ON Semiconductor, designed for voltage regulation and protection applications. This component is part of the SMA series of Zener diodes, which are known for their reliability and efficiency in various electronic circuits.

Key Features:

1. Zener Voltage: The 1SMA5919BT3G has a Zener voltage of 20V, which means it can maintain a stable voltage of approximately 20 volts across its terminals when reverse-biased.

2. Power Dissipation: This diode can handle a maximum power dissipation of 1W, making it suitable for applications where moderate power levels are involved.

3. Package Type: The diode is housed in a DO-214AC (SMA) package, which is a surface-mount device (SMD) that provides a compact footprint, allowing for efficient use of space on printed circuit boards (PCBs).

4. Temperature Range: The operating temperature range for the 1SMA5919BT3G is typically from -55°C to +150°C, making it suitable for use in a wide variety of environments, including industrial and automotive applications.

5. Reverse Leakage Current: The reverse leakage current is specified at a maximum of 5 µA at the Zener voltage, which indicates low power loss and high efficiency during operation.

6. Capacitance: The diode exhibits a small junction capacitance, which is beneficial for high-frequency applications, ensuring minimal signal distortion.

7. Applications: The 1SMA5919BT3G is commonly used in voltage regulation, transient voltage suppression, and as a reference voltage source in various electronic circuits. It is ideal for protecting sensitive components from voltage spikes and ensuring stable operation in power supply circuits.

Electrical Characteristics:

• Zener Impedance: The dynamic impedance of the diode is low, which helps maintain a stable output voltage under varying load conditions.
• Maximum Reverse Voltage: The maximum reverse voltage rating is typically higher than the Zener voltage, ensuring that the diode can withstand voltage transients without failure.

Conclusion:

The 1SMA5919BT3G from ON Semiconductor is a versatile and reliable Zener diode suitable for a range of applications requiring voltage regulation and protection. Its compact size, robust performance characteristics, and wide operating temperature range make it an excellent choice for engineers and designers looking to enhance the reliability and efficiency of their electronic circuits.