DDZ9700Q-7

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Diodes Zener usually refer to a form of diode that allows current to flow in either direction. They are designed to breakdown at a predetermined reverse voltage and let a small current flow when in the reverse breakdown mode. The DDZ9700Q-7 is a single diode designed to deliver a precision voltage reference. It is designed to maintain a constant, stable voltage across its terminals while providing protection against excessive power and current.

The 7.0 V Zener reference voltage of the DDZ9700Q-7 is factory trimmed and employed for a host of applications, such as over-voltage, ESD protection, or voltage monitoring and regulation. This Zener diode utilizes a shielded, hermetically sealed die construction in a TO-220/DO-204AL (Standard) package.

The application field of the DDZ9700Q-7 includes industrial, automotive, military, aerospace, and medical equipment, as well as computers and other consumer products. It is also used in automotive and telecom applications, including cell phone power supplies. The diode may also be used in a power supply line protection circuit, which is commonly employed to protect transistor circuits from over-voltage.

The working principle of the DDZ9700Q-7 is based on the fact that, when the voltage across a Zener diode reaches the Zener breakdown voltage level, an avalanche current flows. This avalanche current is limited by the series resistance of the Zener diode, thus creating a constant Zener voltage that can be used as a precise reference voltage. The operating voltage will remain constant up to the peak inverse voltage rating of the diode, regardless of changes in current or temperature.

The DDZ9700Q-7 is also designed to provide maximum ESD protection, withstanding up to ±2 kilovolts of air discharge and ±4 kilovolts for direct contact. The current rating of the DDZ9700Q-7 is 50 mA and its power dissipation rating is 200 mW (at TA = 25°C). The Zener voltage of the DDZ9700Q-7 has a typical VZ value of 7.0 V ±2.0 % (at IZT = 10 mA). This diode can operate in the temperature range of -55°C to 125°C.

In conclusion, the DDZ9700Q-7 is a single diode designed to provide a precise voltage reference. Its application field includes industrial, automotive, military, aerospace, and medical equipment, as well as computers and other consumer products. Its working principle is based on avalanche breakdown, whereby the Zener voltage remains constant up to the peak inverse voltage rating of the diode. The maximum ESD protection of this diode is ±2 kilovolts for air discharge and ±4 kilovolts for direct contact. It has a current rating of 50 mA and a power dissipation rating of 200 mW. The operating temperature range of the DDZ9700Q-7 is -55°C to 125°C.

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