CMDZ15L TR Discrete Semiconductor Products

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Introduction

CMDZ15L TR is an industry-standard, dual-power zener diode with a wattage rating of 1/2 Watt and a IZT rating of 15 mA. CMDZ15L TR is designed to protect voltage sensitive components, such as microcontrollers, and to protect against voltage transients due to noise or power spikes. It is part of a family of CMDZ-specific products, produced by Central Semiconductor, that offers an array of solutions to a variety of voltage regulation needs.

Applications

CMDZ15L TR is typically used in power supply applications where a short rise-time transient voltage is present. It can be applied for the protection of various digital circuits, including microcontrollers and digital signal processors. Furthermore, because it has the ability to maintain a stable current and voltage, it is often used in automotive, industrial, and medical systems.

CMDZ15L TR may also be used in low-voltage applications, such as mobile phones and other handheld devices, as well as for DC/DC converters and hot-swap applications. It can also provide ESD (electrostatic discharge) protection for CMOS chips in high-speed, high-di/dt applications.

Technical Specifications

• Reverse Standoff Voltage : 15V
• Maximum Clamping Voltage : 15.9V
• Izt (Test Current) : 15 mA
• Power Dissipation: 0.5 Watts
• Operating Temperature : -65°C to +150°C
• Storage Temperature : -65°C to +150°C

Working Principle

The working principle of CMDZ15L TR is based on the phenomenon of Zener breakdown, which occurs when an excessive electric field is applied to the junction of a PN diode. The applied electric field causes the junction to breakdown at a specific voltage level, allowing current to pass through the diode. This breakdown voltage is the reverse voltage at which the diode begins to conduct.

CMDZ15L TR can be used to limit and regulate the DC voltage level of a system. When the input voltage increases to a certain level, the diode will begin to conduct, thus limiting and regulating the current. This prevents any overvoltage from damaging sensitive circuits and components. Additionally, the reverse breakdown voltage (Vz) of the diode ensures that the voltage across the device remains relatively constant throughout its operating range.

Conclusion

CMDZ15L TR is a dual-power zener diode capable of providing voltage regulation in a variety of applications. It offers the advantages of a low reverse breakdown voltage, low-current operation, and a small package size. It can be used to provide protection against voltage transients, ESD protection, and a reliable source of regulated output voltage.

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