onsemi Zener Diode 3.9V, Single, SOT-23, 300mW, Voltage Regulator BZX84C3V9LT1G

The onsemi BZX84C3V9LT1G is a precision Zener diode engineered for voltage regulation purposes in a wide variety of electronic applications. It features a nominal zener voltage of 3.9V, providing a stable reference across loads and reliable protection against overvoltage in sensitive components.

This diode is designed with a single element in a surface mount SOT-23 package, making it ideal for integration onto modern PCBs where space optimization is critical. Its three-pin configuration allows for easy placement and connectivity in automated assembly processes.

With a maximum power dissipation of 300mW and a test current rating of 5mA, the device is suitable for low-to-medium power regulation, ensuring longevity and dependable operation in industrial, commercial, and laboratory environments. The wide operating temperature range - from -65°C up to 150°C - enables its use across harsh thermal conditions, maintaining consistent performance.

Technical highlights include a zener voltage tolerance of ±5%, a maximum zener impedance of 90Ω, and a reverse leakage current capped at 3μA. These attributes make the BZX84C3V9LT1G reliable for applications requiring precise voltage stabilization, such as power supply protection, reference voltage circuits, and sensor interfaces.

Additional specifications include a typical voltage temperature coefficient of -3mV/°C and a compact build of 3.04mm length and 1.11mm height. Despite its small size, this diode provides robust overvoltage protection while maintaining minimal footprint.

Industrial and commercial applications include use in consumer electronics, automation systems, telecommunications devices, power management modules, and medical instrumentation where dependable voltage regulation is vital.

Designed for voltage regulation in electronic circuits. Nominal zener voltage of 3.9V ensures reliable operation in precision applications. Single diode configuration with three-pin SOT-23 surface mount package. Maximum power dissipation of 300mW enables use in compact circuit designs.

Wide operating temperature range from -65°C to 150°C for demanding environments. Maximum zener impedance of 90Ω supports stable voltage performance. Low reverse leakage current of 3μA enhances circuit efficiency. Explore more Zener Diodes, discrete semiconductors, and onsemi products within the EnvMart semiconductor category to meet your circuit protection and voltage regulation needs.