1N5335CE3/TR12

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Diodes are an integral component of many electronic projects. They are used in myriad applications ranging from simple voltage rectification to complex circuits controlling multiple switching components. The 1N5335CE3/TR12 is a widely used single-zone subminiature Zener diode. This article will explore the 1N5335CE3/TR12 application field and working principle.

Broadly, Zener diodes are components that produce a consistent reverse bias voltage irrespective of increasing or decreasing power loads. In this example, the 1N5335CE3/TR12 diode has a maximum dynamic operating voltage of 3.9V with a maximum power rating of 500mW (0.5W). Manufactured in a miniature SOD-123 package with an encapsulated body, the device measures a mere 1.6mm × 0.81mm × 0.59mm.

This diode is primarily employed for precision voltage reference of 3.9V in an array of electronic systems. Examples include illumination systems such as LED lights, automotive systems such as turn signals and brake lights, as well as varied industrial camera systems, relay systems and touch panels. Moreover, this diode proves useful as both a free-running and clamped circuit board component.

The working principle of the 1N5335CE3/TR12 is fairly simple and is based on an interesting phenomenon called the Zener Breakdown. When a reverse voltage is applied to the diode, the electric field across the P-N junction increases, potentially causing some of the electrons to break away from the valence band and cross over the P-N junction. This causes a sudden spike in the current, creating a current-voltage loop with a characteristic Zener voltage of 3.9V. This voltage does not vary significantly regardless of the applied current or voltage providing the component with its remarkable stability. The device also requires very few external components and hence is an incredibly nifty solution for a diverse range of applications.

The 1N5335CE3/TR12 has proven to be a reliable solution for Zener diode requirements in a wide variety of domains. Its miniature footprint, low power rating and linear voltage reference of 3.9V make it an ideal component in both free-running and clamped systems. This versatility, along with its consistent performance, has seen the component become a much sought-after device.

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