SMAZ10-13

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Introduction

SMAZ10-13 is a single-terminal Zener diode designed for surface-mount technology applications. It is designed for use in voltage regulator, voltage clamping and surge protection applications. SMAZ10-13 consists of two unidirectional junctions fabricated in a single package. The anode and cathode connections are independent and both utilize the same type of sinter-type pawl construction.

Application Field of SMAZ10-13

SMAZ10-13 is suitable for many voltage regulator and voltage clamping applications, including battery charging and DC/DC converters. Its suprading breakdown voltage and low dynamic impedance allow it to be used in high power applications. Furthermore, the self-healing characteristic makes it an attractive choice for transient voltage protection and surge protection applications.

SMAZ10-13 is also used in many consumer electronics, automotive and telecom applications, such as cell phones, tablets and routers. It is specifically designed for application in high-density PCBs, where space and size are major considerations.

Working Principle of SMAZ10-13

SMAZ10-13 works on the principle of reverse bias operation of a single PN junction. When an external voltage is applied to the diode, a current flows through it as long as the applied voltage is less than the Zener breakdown voltage. When the applied voltage exceeds the Zener breakdown voltage, the current through the diode increases additionaly, reducing the internal resistance of the diode. This causes the voltage drop across the diode to reduce. If the external voltage continues to exceed the Zener breakdown voltage, then a further reduction in the internal resistance is observed. This limits the reverse current, thereby providing a constant voltage output.

The self-healing characteristic of SMAZ10-13 is based on a patented proprietary insulation film technology. It consists of a layer of insulation which acts as a barrier between the cathode and the anode. When a surge or transient voltage is applied to the diode, the insulation layer begins to degrade. As it degrades, the current generated by the surge or transient is limited, resulting in reduced energy loss. This self-healing characteristic allows the diode to withstand several surges or transients before needing to be replaced.

Conclusion

SMAZ10-13 is a single-terminal Zener diode designed for surface mount applications. It is suitable for voltage regulator, voltage clamping and surge protection applications and is often used in consumer electronics, automotive and telecom applications, such as cell phones and routers. It works on the principle of reverse bias operation, with a self-healing characteristic based on a patented insulation film technology. This technology allows it to withstand several surges or transients before needing to be replaced.

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