1N938A

• Computer peripheral
• Telecommunications
• Medical
• Industrial electronics

The 1N938A is a single Zener diode that is used to provide a stabilizing terminal voltage with respect to minor fluctuations in the operating current. A Zener diode acts as an electronic switch and is able to redirect an electric current with the help of a reverse voltage when the forward voltage exceeds a certain threshold known as the Zener voltage. In this manner, it becomes possible to maintain a steady voltage at the output.

The diode typically starts off as a typical diode with a relatively low forward voltage drop. As the applied reverse voltage increases in the diode, it reaches a certain point which is known as the Zener Breakdown Voltage. At this point, the depletion region within the diode becomes thinner and allows for current to flow in the reverse direction. The Zener diode then functions as a voltage regulator or a current regulator and can be used for a variety of applications such as protecting sensitive electronics from high voltage surges, stabilizing voltage output from an AC power source, providing a constant voltage reference for current limiting circuits, etc.

The 1N938A is a single Zener diode with a reverse breakdown voltage of 5.6 volts nominal. It also has a rated power dissipation of 500mW (milliwatts) and a maximum reverse current of 1mA (milliamp). The diode is made of a semiconductor material and has a standard axial leaded package, which allows for easy mounting and soldering. It is designed to operate in temperatures ranging from -55 to 125 degrees Celsius, making it suitable for a wide range of applications.