BPW38

Series:	--
Packaging:	--
Part Status:	Obsolete
Voltage - Collector Emitter Breakdown (Max):	25V
Current - Dark (Id) (Max):	100nA
Wavelength:	880nm
Viewing Angle:	18°
Power - Max:	300mW
Mounting Type:	Through Hole
Orientation:	Top View
Operating Temperature:	-65°C ~ 125°C (TA)
Package / Case:	TO-206AA, TO-18-3 Metal Can

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BPW38 Application Field and Working Principle

Optical sensors are devices designed to detect the presence and amount of light and convert the information into an electrical signal. Phototransistors are a type of optical sensor that can sense light energy and convert it into an electrical signal. The BPW38 is a type of phototransistor that is commonly used in a variety of applications. This article discusses the application field of the BPW38, as well as its working principle.The BPW38 phototransistor is most commonly used in applications that require a high degree of accuracy and sensitivity. These include light detection and control, as well as optical communications. In light detection and control applications, the BPW38 can be used to accurately measure and control the intensity and wavelength of a light source. In optical communication applications, the BPW38 can be used to receive and transmit optical signals efficiently.The BPW38 is a bipolar type of phototransistor, meaning that it operates by relying on the current flow between the base-emitter junction and the collector-emitter junction. It has a very high sensitivity to light, making it ideal for applications that require a precise optical response. Its small size also makes it suitable for use in a variety of applications, including sensors, displays, and digital equipment.When exposed to light, the BPW38’s base-emitter junction emits minority carriers, which conduct current from the emitter to the collector. The collector-emitter current is then amplified, and the output current is proportional to the input light intensity. This allows the BPW38 to accurately measure and control the amount of light it is exposed to, and consequently, the output current signals can be used to help control the output of a device.In addition to its use in light detection and control applications, the BPW38 can also be used in other types of applications. These include sensing the presence of infrared light waves, which can be used in motion detection applications. It can also be used as an optical switch, providing control over electronic circuits.Overall, the BPW38 phototransistor is a versatile device that can be used in a variety of applications. Its high sensitivity to light, small size, and ability to precisely measure and control light intensity make it ideal for a wide range of applications. As technology continues to advance, the BPW38 will likely become even more important for industrial, consumer, and medical applications.

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