4N27-X017T

Output Type:	Transistor with Base
Base Part Number:	4N27
Supplier Device Package:	6-SMD
Package / Case:	6-SMD, Gull Wing
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 100°C
Vce Saturation (Max):	500mV
Current - DC Forward (If) (Max):	60mA
Voltage - Forward (Vf) (Typ):	1.36V
Current - Output / Channel:	50mA
Voltage - Output (Max):	70V
Series:	--
Input Type:	DC
Rise / Fall Time (Typ):	2µs, 2µs
Turn On / Turn Off Time (Typ):	--
Current Transfer Ratio (Max):	--
Current Transfer Ratio (Min):	10% @ 10mA
Voltage - Isolation:	5000Vrms
Number of Channels:	1
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Optoisolators are electronic devices used for electrical isolation. The 4N27-X017T is an optoisolator that, specifically, falls under the category of transistor, photovoltaic output optoisolators. This type of optoisolator is used to isolate an input and an output that share different common grounds, so that any noise or interference present in the input side is not transmitted to the output side. The 4N27-X017T consists of an LED (light-emitting diode) on the input side, which is connected to a NPN phototransistor on the output side. The LED emits light when power is applied, which in turn is picked up by the phototransistor on the other side of the device. The phototransistor amplifies the light signal and produces an output voltage, thus isolating the two sides of the device.The 4N27-X017T has myriad applications, including telecommunications and automotive electronics. In the telecommunications sector, they are most commonly used as a means of isolating digital signals, such as those used in computer networks, from noise and interference. Additionally, these optoisolators are frequently used in automotive applications, as they are used to provide temperature sensing and voltage sensing in vehicle systems. The working principle of the 4N27-X017T is relatively simple. When power is applied to the LED, it emits light, which the phototransistor detects and converts into an amplified output voltage. The output voltage serves to isolate the two sides of the device, preventing any noise or interference from passing between them. In summary, the 4N27-X017T optoisolator is a transistor, photovoltaic output optoisolator, and it is used to provide electrical isolation between an input and output that share different common grounds. It has a wide range of applications, including telecommunications and automotive electronics, and the device works by amplifying an input light signal and converting it into an output voltage, thus providing isolation.

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