SFH6702-X009

Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	8-SMD, Gull Wing
Supplier Device Package:	8-SMD
Series:	--
Packaging:	Tube
Part Status:	Obsolete
Number of Channels:	1
Inputs - Side 1/Side 2:	1/0
Voltage - Isolation:	5300Vrms
Common Mode Transient Immunity (Min):	1kV/µs
Input Type:	DC
Output Type:	Push-Pull, Totem Pole
Current - Output / Channel:	25mA
Data Rate:	5MBd
Propagation Delay tpLH / tpHL (Max):	300ns, 300ns
Rise / Fall Time (Typ):	40ns, 10ns
Voltage - Forward (Vf) (Typ):	1.6V
Current - DC Forward (If) (Max):	10mA
Voltage - Supply:	4.5 V ~ 15 V

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Optoisolators - Logic Output

The SFH6702-X009 is a logic output optoisolator built by Siemens. It is used for isolating two circuits and provides the advantages of electromagnetic isolation. It also provides logic output limit clamping. The device is protection from transients and is significant when any of the circuits have different input and output grounds. The SFH6702-X009 has features which make it ideal for industrial automation applications.

Application Field

The logic output optoisolator is suitable for a variety of industrial applications which require circuit isolation. These include:

• Power supply protection
• Switchgear and panel protection
• Controller protection
• Automation and control systems
• Processor and instrument control
• Signal transceivers
• Systems with high-voltage/low-voltage sections

The SFH6702-X009 is very reliable, has low power consumption and is cost effective. It is typically used for long wiring runs or in high noise environments.

Working Principle

The optoisolator works by isolating two different circuits electrically while still allowing data transmission between them. The device is constructed with an LED and a photodiode mounted on a single substrate. The LED sends out an optical signal in response to an input voltage, and the photodiode is used to detect the signal. The output of the photodiode is converted into an electrical output voltage which is proportional to the input.The SFH6702-X009 has an LED which responds to an input voltage of 4.5 VDC. This voltage triggers the LED to emit a light signal. The light signal is detected by the photodiode which generates an output voltage proportional to the input. This output voltage is then used to regulate the circuit, thereby providing isolation and circuit protection.The device also offers voltage and current limit clamping. This helps to protect against potential overvoltages and overcurrents which might affect the device. The optoisolator is also resistant to transient overvoltages which may cause permanent damage to other types of devices.

Conclusion

The SFH6702-X009 is a reliable and cost effective optoisolator which provides electrical isolation to two different circuits. It is used for applications in industrial automation, switchgear and panel protection, controller protection, and other systems with high voltage/low voltage sections. The device has a variety of features which make it an ideal choice for these types of applications. It offers voltage and current limit clamping, protection against transients, and low power consumption. It is also resistant to permanent failure due to transient overvoltages.

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