SD200-12-22-041

Series:	--
Packaging:	Bulk
Part Status:	Active
Wavelength:	660nm
Color - Enhanced:	Blue
Spectral Range:	350nm ~ 1100nm
Diode Type:	PIN
Responsivity @ nm:	0.28 A/W @ 450nm
Response Time:	13ns
Voltage - DC Reverse (Vr) (Max):	75V
Current - Dark (Typ):	6.5nA
Active Area:	20.27mm²
Viewing Angle:	83°
Operating Temperature:	-40°C ~ 125°C
Mounting Type:	Through Hole
Package / Case:	--

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Introduction

Optical sensors play an important role in many industrial fields. Photodiodes are one of the most common devices used for optical sensing. In this article, we will discuss the application field of an SD200-12-22-041 photodiode, as well as its working principle.

Application Field

The model SD200-12-22-041 is a silicon photodiode that is capable of detecting low levels of light. It is specially designed for applications that require a high-sensitivity detector over a wide dynamic range, such as fiber-optic communication systems, optical switches, motion sensors, laser scanners, police traffic control, and medical imaging.The SD200-12-22-041 offers a wide range of advantages in various applications. Its low capacitance and high magnitude responsivity make it very suitable for frequency response measurements. Its high level of Quantum Efficiency (QE) of 0.91 allows it to detect even low levels of light. Additionally, its low dark current of 10 nA means the photodiode can be used efficiently at low levels of electrical power.

Working Principle

The basic working principle of a photodiode is simple. When light is incident upon the photodiode, electrons in the semiconductor material are released from their atomic orbitals, leaving behind positively charged ‘holes’. These charges are then collected by metal contacts on the device. This generates an electrical current or voltage, depending on the type of photodiode.The SD200-12-22-041 photodiode is a type II silicon photodiode. This type of device has a built-in bias voltage provided by its metal contacts, which allows it to operate in reverse-biased mode. This means that light generated current is able to be converted into a voltage by the difference between the built-in bias voltage and the externally applied voltage.

Conclusion

The SD200-12-22-041 photodiode is a widely used device in many industrial fields. It is highly sensitive and can accurately detect low levels of light. Its built-in bias voltage allows it to operate in reverse biased mode, which means that the light generated current can be converted into a voltage. This makes it an ideal choice for a variety of applications, such as fiber-optic communication systems, optical switches, motion sensors, laser scanners, police traffic control, and medical imaging.

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