PDZ9.1B,115

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	9.1V
Tolerance:	±2%
Power - Max:	400mW
Impedance (Max) (Zzt):	10 Ohms
Current - Reverse Leakage @ Vr:	500nA @ 6V
Voltage - Forward (Vf) (Max) @ If:	1.1V @ 100mA
Operating Temperature:	150°C (TJ)
Mounting Type:	Surface Mount
Package / Case:	SC-76, SOD-323
Supplier Device Package:	SOD-323
Base Part Number:	PDZ9V1

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The PDZ9.1B is a single diode-zener diode, or a type of semiconductor device used to regulate the output of a circuit. It is composed of a single p-n junction diode, a metal oxide semiconductor (MOS) layer, and a metal electrode. The metal oxide semiconductor layer acts as an insulator between the metal electrode and the p-n junction, preventing the formation of any electrical contact between them. It also improves the electrical characteristics of the device by providing enhanced temperature stability and leakage current reduction.The PDZ9.1B is used to control the voltage in a circuit by either limiting the maximum voltage or clamping the voltage to a specific value. When used in its breakdown mode, the device has a minimum voltage that it cannot exceed. This is known as the zener voltage and is determined by the material used in the MOS layer and the doping concentration of the diode. In its clamping mode, the device can prevent voltage excursions either above or below a preset level, known as the clamping voltage.The device has a wide range of application fields, including power supplies, voltage regulators, audio amplifiers, clipper circuits, and surge protectors. One of the most common applications of a PDZ9.1B is in circuit protection, where it can be used to limit the maximum voltage to a predetermined level. This prevents circuits from becoming damaged by excessive voltage. The device is also commonly used in LED driver applications, where it is used to limit current flow and improve LED efficiency.The PDZ9.1B works by controlling the flow of current through the diode according to its unique properties. When the voltage across the diode reaches or exceeds the zener voltage, the current flow is limited to a small amount, which is called the zener current. This ensures that even if the voltage across the diode is higher than the zener voltage, the diode will not allow a large current flow. Similarly, in the clamping mode, the device limits the current flow to a predetermined level, preventing voltage excursions either above or below the clamp voltage.In summary, the PDZ9.1B is a single diode-zener diode designed to regulate the output of a circuit. It is used to control the voltage in a circuit by either limiting the maximum voltage or clamping the voltage to a specific value. The device has a wide range of applications, including circuit protection and LED drivers and works by controlling the flow of current through the diode according to its unique properties.

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