4N393SD

Current - On State (It (RMS)) (Max):	300mA
Approvals:	UR, VDE
Supplier Device Package:	6-SMD
Package / Case:	6-SMD, Gull Wing
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 100°C
Current - DC Forward (If) (Max):	60mA
Voltage - Forward (Vf) (Typ):	1.1V
Turn On Time:	50µs (Max)
Current - Hold (Ih):	1mA
Series:	--
Current - LED Trigger (Ift) (Max):	30mA
Static dV/dt (Min):	500V/µs
Voltage - Off State:	200V
Voltage - Isolation:	5300Vrms
Number of Channels:	1
Zero Crossing Circuit:	No
Output Type:	SCR
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Optoisolators - Triac, SCR Output

Optoisolators, also known as optocouplers or photocouplers, are electronic components that isolate input from output. They are used to safely pass signals between different electrical circuits and isolate high voltage circuits from low voltage ones. The 4N393SD is an optoisolator that is commonly used for controlling loads with Triac and SCR Output. This article will discuss the application fields and working principle of this component.The 4N393SD is a Triac and SCR output optoisolator. It is typically used in applications such as AC light dimmers, motor speed controllers, relay drivers, and HVAC systems. It can also be used for other industrial, commercial, and consumer uses. It has an operational voltage range of 5 V to 24 V, with a response time of 500 ns.The working principle of the optoisolator is based on the optical isolation law. The 4N393SD is composed of two parts: an optocoupler and an output device. The optocoupler is made up of a light emitting diode (LED) and a phototransistor. When stimulated by a voltage on the input side, the LED will emit light in the form of photons, which will then be detected by the phototransistor and translated into an electrical signal. This electrical signal is then passed to the output device, where it is amplified and sent to whatever load it is connected to.The 4N393SD is an excellent option for controlling loads with Triac and SCR output due to its high performance and long-lasting design. It is also an economic solution, and is easy to install and maintain.In conclusion, the 4N393SD is an ideal optoisolator for controlling triac and SCR output. It is suitable for a wide range of applications, including dimming, motor speed controlling, and HVAC systems. Its working principle of optical isolation ensures reliable and secure electrical signal transmission, while its easy installation and maintenance make it an attractive option.

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