1N6489

A 1N6489 is a type of Zener diode. It is designed to break down at a specific voltage with a minimum of current and provide a stable voltage reference. Zener diodes are commonly used in power supplies, digital and analog circuits, test and measurement, communications and many other applications.

Characteristics

The 1N6489 is a single Zener Diode in a DO-4 package, where the device types 1N6489S are Stud-Mounted Diodes. The 1N6489 has a rated Zener peak reverse voltage of 9.1 Vwith a typical Zener knee voltage of 8.7 V. It also has an operating temperature range of between -65°C to +175°C, and a rated Zener current of 75 mA.

Applications

The 1N6489 finds a variety of applications which use its property of regulating a voltage. In power supplies, the 1N6489 can be used to limit the available voltage to a certain level, protecting the components from being damaged from surge voltages. They are also frequently used in voltage references in test and measurement, analog and digital circuits as it can accurately maintain its output voltage. Automotive applications require reliable voltage references, so the 1N6489 is commonly used in engine management systems, sensors and actuators. Finally, these devices are useful in communications, providing a stable reference voltage and conduction current outlet to audio systems.

Working Principle

A Zener diode functions by allowing current to flow in the forward direction until it reaches the Zener voltage (Vz). The Zener diode is designed to break down at Vz and allow the current to flow in both directions. This has the effect of clamping and limiting any voltage above the Zener voltage value (Vz). The 1N6489 is rated for a maximum of 9.2 V and 75 mA, meaning any voltage higher than 9.2 V will be clamped, and the current limited to 75 mA.

Conclusion

In conclusion, the 1N6489 is a type of Zener diode which has many different applications in electronics. It is used extensively in power supplies, communications, automotive components and other electronic applications. It functions by allowing current to flow through it in the forward direction until it reaches the Zener voltage, beyond which the diode breaks down and allows the current to flow in both directions while limiting the voltage once the Zener voltage has been achieved.