FOD4208SDV Isolators

Current - On State (It (RMS)) (Max):	300mA
Approvals:	cUL, FIMKO, UL, 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):	30mA
Voltage - Forward (Vf) (Typ):	1.28V
Turn On Time:	60µs
Current - Hold (Ih):	500µA
Series:	--
Current - LED Trigger (Ift) (Max):	2mA
Static dV/dt (Min):	10kV/µs
Voltage - Off State:	800V
Voltage - Isolation:	5000Vrms
Number of Channels:	1
Zero Crossing Circuit:	No
Output Type:	Triac
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Optoisolators - Triac, SCR OutputFOD4208SDV is a type of Optoisolator, and specifically a Triac, SCR Output Optoisolator. It is primarily used to provide electromagnetic shielding, optically isolate signals between circuits, and provide isolation when dealing with high voltage components. In this article we’ll be discussing the FOD4208SDV application field and the working principle behind it. Application FieldThe FOD4208SDV is used in a wide range of applications, including AC-line monitoring systems, AC-motor control systems, lighting detectors, AC-timer controllers, and many other optoelectronic systems. It is able to provide complete isolation between its outputs and its inputs, making it well suited for applications that require high voltage and high current protection. The FOD4208SDV is also able to protect against high frequency interference and has a low input capacitance voltage drop when used in AC-Line monitoring systems.Working PrincipleThe FOD4208SDV is composed of two separate components, an optical input and a Triac, SCR output. The optical input consists of a light-emitting diode (LED) and a phototransistor, while the output consists of a single-gate Triac, SCR. The optical input provides the necessary electrical isolation between the two components, while the Triac, SCR output provides reliable signal switching and noise suppression.When the LED is on, it creates a bright light which is detected by the phototransistor, and the current is passed through the LED. This current triggers the Triac, SCR output, which turns on the AC-Line voltage. When the LED is off, the phototransistor does not detect the light, and the Triac, SCR output is not triggered. As a result, the AC-Line voltage is not turned on.The FOD4208SDV also contains a wide range of features and functions, including a wide operating temperature range, a wide range of voltage ratings, an output for both AC and DC, and an adjustable current protection. These features, along with its rugged design, make the FOD4208SDV an ideal solution for a variety of applications.ConclusionThe FOD4208SDV is a Triac, SCR Output Optoisolator, used in a wide variety of applications. It provides electromagnetic shielding, optically isolates signals between circuits, and provides isolation when dealing with high voltage components. The FOD4208SDV is composed of an LED and phototransistor input, and a Triac, SCR output, allowing it to provide reliable signal switching and noise suppression. It contains a wide range of features such as wide operating temperature range, a wide range of voltage ratings, and an adjustable current protection. The FOD4208SDV is a robust and reliable solution for applications requiring complete isolation between components.

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