4N27S(TA)

Output Type:	Transistor with Base
Supplier Device Package:	6-SMD
Package / Case:	6-SMD, Gull Wing
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 110°C
Vce Saturation (Max):	500mV
Current - DC Forward (If) (Max):	60mA
Voltage - Forward (Vf) (Typ):	1.2V
Current - Output / Channel:	--
Voltage - Output (Max):	80V
Series:	--
Input Type:	DC
Rise / Fall Time (Typ):	--
Turn On / Turn Off Time (Typ):	3µs, 3µs
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 - Transistor, Photovoltaic OutputOptoisolators, also known as optical couplers, are electronic components that provide electrical isolation between two circuits. They are used in a wide variety of applications, from controlling motor speed to protecting computer circuits. One type of optoisolator, the transistor-photovoltaic (TA) type, is composed of a light-emitting diode (LED) and a photovoltaic (PV) cell. In this article, we will discuss the application fields and working principle of a 4N27S(TA) optoisolator.The 4N27S is a common TA optoisolator used in various control systems, such as gate drives, motor speed controllers, and control systems for telecommunications and industrial automation. It has a breakdown voltage of 1.6 V and a minimum input current of 3 mA. This makes it highly reliable and suitable for applications where high voltage and current are involved. Its typical operating conditions are 10 V to 25 V and 0.1 mA to 200 mA.The 4N27S optoisolator typically consists of three terminals: the cathode (anode) of the LED, the anode (cathode) of the PV cell, and a common emitter (collector) of the NPN transistor. The LED and PV cell form the optoelectronic section of the device, and the transistor is the output section. The LED is activated when the input current is applied. This light activates the PV cell, which produces a voltage across the transistor\'s base-emitter junction that causes the transistor to conduct, thereby causing the output current to flow.The main advantage of the 4N27S optoisolator is its ability to isolate two circuits electrically without the need for physical connections. This makes the device ideal for applications in which an electrical interface is required between two systems that do not share the same ground voltage. This isolation is also beneficial in applications that require a low-power input signal and a high-power output signal. Likewise, the TA optoisolator can be used to provide autonomous control in applications that require a low-power, low-voltage signal and a high-power, high-voltage output.optoisolator provides electronic isolation between input and output signals. This isolation prevents hazardous shocks due to voltage transients that may occur when connecting two circuits together. Additionally, an optoisolator also provides a degree of protection from electromagnetic interference (EMI) and allows signals to pass through without distortion or corruption.In summary, the 4N27S(TA) optoisolator is a reliable and versatile electronic component that is used in many control systems and applications. Its ability to provide electrical isolation and protection from EMI makes it a popular choice for a wide variety of applications. Whether you are a novice or an experienced engineer, the 4N27S(TA) optoisolator is an excellent starting point for building reliable and efficient electronic control systems.

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