SD3443-003

Series:	*
Packaging:	Bulk
Part Status:	Obsolete
Voltage - Collector Emitter Breakdown (Max):	30V
Current - Collector (Ic) (Max):	2mA
Current - Dark (Id) (Max):	100nA
Wavelength:	--
Viewing Angle:	90°
Power - Max:	150mW
Mounting Type:	Through Hole
Orientation:	Top View
Operating Temperature:	-55°C ~ 125°C (TA)
Package / Case:	TO-46-3 Metal Can

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The SD3443-003 is a state-of-the-art phototransistor that is used to detect infrared light. This specialized component is designed to better able to handle varying light levels, particularly in dark environments. The SD3443-003 may be best employed in applications where accuracy and reliability are paramount, such as medical diagnostics and laser-based industrial control systems.

Phototransistors are optical transducers that convert photons into electric current. Phototransistor elements feature a working structure that allows high current gain and sensitivity to a wide range of wavelengths. This combination of optical and electrical performance makes the phototransistor especially well-suited for use in a variety of optical sensing applications.

The SD3443-003 is an infrared-sensitive phototransistor with a spectral response of 850 to 950 nanometers. It is designed to operate in a wide range of light intensity levels and features a high level of noise immunity. This makes it well-suited for applications that require sensing of smaller and lower intensity particles, such as in medical imaging systems.

The device operates in two distinct modes: photovoltaic and photocurrent. In photovoltaic mode, the device acts like a solar cell to convert incident light into a voltage with relative ease. This makes it very easy to construct simple light sensing circuits. In photocurrent mode, the device behaves like a typical phototransistor to create a current gain with a specific range of wavelengths.

The main benefit of the SD3443-003 is the accuracy with which it can detect light sources and interpret their signals. As a highly sensitive phototransistor, it has an extremely precise response time, superior noise immunity and a wide dynamic range to handle varying light conditions. It also filters out extraneous signals from ambient noise, making it ideal for applications that require accurate and reliable sensing of light sources.

By utilizing the combination of photovoltaic and photocurrent mode, the SD3443-003 is extremely reliable and versatile. It can be used in a range of applications, from industrial imaging systems to medical diagnostic equipment, and can detect light sources over a wide range of wavelengths and light intensities. This makes it an excellent option for those applications that require precise and reliable detection of light sources.

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