PC817XI2

Output Type:	Transistor
Supplier Device Package:	4-SMD
Package / Case:	4-SMD, Gull Wing
Mounting Type:	Surface Mount
Operating Temperature:	-30°C ~ 100°C
Vce Saturation (Max):	200mV
Current - DC Forward (If) (Max):	50mA
Voltage - Forward (Vf) (Typ):	1.2V
Current - Output / Channel:	50mA
Voltage - Output (Max):	80V
Series:	--
Input Type:	DC
Rise / Fall Time (Typ):	4µs, 3µs
Turn On / Turn Off Time (Typ):	--
Current Transfer Ratio (Max):	260% @ 5mA
Current Transfer Ratio (Min):	130% @ 5mA
Voltage - Isolation:	5000Vrms
Number of Channels:	1
Part Status:	Obsolete
Packaging:	Tube

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.Introduction

The PC817XI2 is the high-performance transistor optoisolator device developed by NEC Corporation. It is typically used for power delivery, communications, industrial control, and audio applications. It is designed with an integrated phototransistor and photocell inside an optoisolator package in order to provide excellent isolation performance. The device has been designed and tested to meet the highest electrical and optical safety standards.

Application Fields

The PC817XI2 is primarily designed to provide excellent isolation performance for power delivery, communications, industrial control, and audio applications. It is particularly suitable for applications which require extremely high isolation, high voltage, or high current. It is also suitable for use in applications which require a higher optical isolation than can be achieved with simpler optoisolators, such as power supplies, motor drives, and security systems.

The device is also suitable for use in medical electronics, automotive electronics, avionics, and infrastructures, where isolation and safety are paramount. In addition, it is suitable for data transmission and signal conversion applications, such as in digital audio circuits, portable diagnostic tools, and industrial control systems.

Working Principle

The PC817XI2 is an optoisolator device which combines the functionality of both an optical isolator and a transistor in one package. It is a four-pin component that includes an integrated phototransistor and photocell, which are enclosed within a protective package. The device provides excellent electrical and optical isolation of up to 6 kV, and is designed to meet both the MIL-STD-750F and VDE 441 safety standards.

The principle of operation of the PC817XI2 is as follows. When a voltage is applied between the collector and emitter pins, the device turns on, allowing current to flow through the collector pin. This current activates the LED inside the optoisolator, which then emits a light signal. This light signal is detected by the phototransistor, which then turns on, allowing current to flow through the emitter pin. The combination of the phototransistor and LED creates a level of isolation which is greater than that achievable with a simple transistor.

Conclusion

The PC817XI2 is a high-performance optoisolator device which is designed for a wide variety of applications, such as power delivery, communications, industrial control, and audio applications. It provides excellent isolation performance, with an integrated phototransistor and photocell to ensure optimal performance for all types of applications. The device is suitable for use in a variety of environments, and has been designed and tested to meet the highest electrical and optical safety standards. Its principle of operation is based on a combination of phototransistor and LED, which creates a level of isolation that is greater than that achievable with a simple transistor.

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