Series:	--
Packaging:	Bulk
Part Status:	Active
Voltage - Collector Emitter Breakdown (Max):	30V
Current - Collector (Ic) (Max):	20mA
Current - Dark (Id) (Max):	100nA
Wavelength:	940nm
Viewing Angle:	--
Mounting Type:	Through Hole
Orientation:	Top View
Operating Temperature:	-25°C ~ 85°C (TA)
Package / Case:	Radial, 5mm Dia (T 1 3/4)

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Optical Sensors - Phototransistors

Phototransistors are a type of optical sensor that detect light and convert it into an electrical pulse. These devices are typically integrated into a variety of industrial applications, such as automotive, medical, security, and industrial automation products. The PT334-6B is a common phototransistor that has a wide field of applications and is used to detect infrared (IR) light.

Technology Overview

The PT334-6B phototransistor was specifically designed to detect infrared light in the wavelength range of 950-1100nm. It is a compact device with dimensions of 2.5mm x 2.0mm making it easy to integrate into tightly spaced designs.The PT334-6B has a high sensitivity, with a responsivity of 600mV/A. This means that a small amount of current will be generated when light is detected, making it ideal for use as a light-detection device. Additionally, the PT334-6B operates at a wide range of temperatures, from -40°C to 85°C. This makes it suitable for use in a variety of environments. The PT334-6B also has a low operating current, with a maximum drain of 10mA. This makes it beneficial to use in battery operated applications, as it does not draw a lot of power.

Working Principle

The PT334-6B phototransistor works by taking in light and converting it into an electrical pulse. This is done through the use of a light-sensitive semiconductor at the core of the device. When light enters the device, the electrons in the semiconductor are excited and the current increases. This causes the output voltage of the device to increase, allowing it to be used to detect the presence of light.The PT334-6B uses a PN junction as a light-sensing device. The PN junction consists of two materials, doping P-type and N-type semiconductors. When light strikes the PN junction, it excites the electrons that move across the junction. This induces a current which is amplified and then converted into a voltage. This voltage is then used to detect the presence of light.

Application Fields

The PT334-6B phototransistor is commonly used in a variety of industrial applications, including medical, automotive, and security products. For example, the device is used in medical imaging systems to detect the presence of infrared light.The PT334-6B is also used in automotive applications, such as to detect the presence of vehicles in the vicinity. Similarly, these devices have been incorporated into security systems to sense whether an intruder is present. Additionally, the PT334-6B is used in industrial automation applications such as in automated machinery. The PT334-6B is also used in consumer products, such as mobile phones, televisions, and gaming consoles. The device can be used to detect the presence of a user in front of the device, as well as to detect the user’s movements.

Conclusion

The PT334-6B is a widely used phototransistor that can be used in a variety of industrial applications. This device has a wide range of applications, from medical imaging to automotive and security products. Additionally, the device is capable of operating at a wide range of temperatures and its low operating current makes it beneficial for use in battery operated applications. The working principle of the PT334-6B is based on a light-sensitive PN junction, which converts light into an electrical pulse that can be used as a light-detection device.

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