PNZ108CL

Series:	*
Packaging:	--
Part Status:	Obsolete
Voltage - Collector Emitter Breakdown (Max):	20V
Current - Collector (Ic) (Max):	20mA
Current - Dark (Id) (Max):	2µA
Wavelength:	900nm
Viewing Angle:	160°
Power - Max:	100mW
Mounting Type:	Through Hole
Orientation:	Top View
Operating Temperature:	--
Package / Case:	TO-206AA, TO-18-3 Metal Can

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Optical sensors are devices used to detect light and turn it into measurable electric signals. Phototransistors are one type of optical sensor, which uses a light-sensitive gate to control current. The PNZ108CL is a phototransistor with wide application fields and various working principles.The PNZ108CL is an NPN type phototransistor with surface-mount design, featuring a flat, clear window for unencumbered transfer of a light signal into the sensor. It is composed of a monolithic integrated circuit which includes a photodetector and a single-stage amplifier, and combines high sensitivity, fast response, and excellent stability.The PNZ108CL phototransistor is used for a wide range of sensing applications. It is most commonly used in optical switches for low-fall-time switch applications such as irradiated touch switches, presence detection, and level detection. It is also used in optical position sensing, control applications, and automotive applications such as light-bar detection for automotive interior lighting.The working principle of the PNZ108CL is based on the Photovoltaic effect. Its integrated circuitry first converts incident light into current flow by the Photovoltaic effect. This current then passes through a single-stage amplifier and the resulting amplified signal is output from the collector of the phototransistor. The collector current is proportional to the light intensity.The low-fall-time switch application is possible by the PNZ108CL because of its fast response time, which is usually measured in milliseconds. When light strikes the phototransistor’s surface, the resultant current is converted to a voltage and is output from the collector. When the light intensity reaches a certain level, the switch is activated and the circuit is complete.In addition, the PNZ108CL is also used for optical position sensing. This application takes advantage of the phototransistor’s linear response. When the light intensity changes at the receiver, the output signal is proportional to the light intensity difference, resulting in a reliable, accurate, and linear position sensing.The PNZ108CL is widely used in automotive applications due to its excellent light-bar detection performance. This application takes advantage of the PNZ108CL’s improved gain characteristics which allow it to accurately detect both bright and dark light bars. This allows automotive lighting systems to automatically adjust the interior lighting according to ambient conditions.In conclusion, the PNZ108CL is a reliable and efficient phototransistor with diverse applications. Its surface-mount design, high sensitivity, fast response, and excellent stability make it ideal for a wide range of sensing applications, such as optical switches, optical position sensing, control circuits, and automotive applications.

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