VO618A-3

Output Type:	Transistor
Supplier Device Package:	4-DIP
Package / Case:	4-DIP (0.300", 7.62mm)
Mounting Type:	Through Hole
Operating Temperature:	-55°C ~ 110°C
Vce Saturation (Max):	400mV
Current - DC Forward (If) (Max):	60mA
Voltage - Forward (Vf) (Typ):	1.1V
Current - Output / Channel:	50mA
Voltage - Output (Max):	80V
Series:	--
Input Type:	DC
Rise / Fall Time (Typ):	2µs, 2µs
Turn On / Turn Off Time (Typ):	3µs, 2.3µs
Current Transfer Ratio (Max):	200% @ 1mA
Current Transfer Ratio (Min):	100% @ 1mA
Voltage - Isolation:	5300Vrms
Number of Channels:	1
Part Status:	Active
Packaging:	Tube

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The VO618A-3 optoisolator consists of a gallium arsenide infrared-emitting diode and a silicon phototransistor detector, sealed within a single plastic 6-pin dual in-line package. The device is an isolation device that transforms an electrical signal across one circuit into an optical signal across a corresponding optical interlink, with no electrical continuity between the two circuits. It is an ideal choice for applications where reliability and high isolation values are paramount.The primary use of the VO618A-3 optoisolator is to provide electrical isolation between otherwise electrically coexistent circuits, creating a physical barrier that prevents any direct electrical connections between the two circuits. This is essential in minimizing the chances of ground loops and other EMF related disturbances occurring during signal transmissions. The device also has other useful functions such as voltage shunt gate, allowing a specific signal voltage to be passed through, pulse shaping applications, frequency shift, and acting as a buffer to reduce the effect of AC ripple.The working principle of the VO618A-3 optoisolator is straightforward. When a current passes through the LED source, it emits a visible light beam which is directed to the phototransistor and converted into an electrical signal. This is then transmitted to the opposite circuit, with no need for electrical connections between the LED and the phototransistor and thus providing a reliable and isolated signal. The isolation is also ensured by non-conductive and air-gap materials used between the two circuits.In conclusion, the VO618A-3 optoisolator is reliable, cost-effective and easy to use for applications requiring electrical isolation between circuits. It provides a reliable signal transmission along with high isolation values and is suitable for both pulse shaping applications and applications where signal strength needs to be guaranteed.

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