S11MD5P

Optoisolators - Triac, SCR Output

The S11MD5P is an all-in-one, Selectable Output (SO) optoisolator designed for use in industrial applications. It is capable of yielding a maximum current rating of 500 mA and ac to dc optoisolation voltage of up to 5 kV. Based on a triac output, the S11MD5P is a non-latching device and is highly suitable for applications in which it’s necessary to modulate, control, or monitor AC circuits (such as motor control). It is also used in AC voltage and power monitoring and other power control applications.

Application field

The S11MD5P optoisolator makes it possible for industrial applications to operate safely and reliably, even in highly demanding environments. It reduces the likelihood of erroneous operations, caused by motor control noise, excessive vibration, and electromagnetic interference. In addition, this optoisolator is well suited for industrial applications requiring measurement and/or control of AC voltage and power, including motor control, air conditioning, and other industrial machines.

Working principle

The S11MD5P optoisolator uses a triac output structure to provide isolated operation. This device can be easily programmed for either a momentary or continuous operation. Its basic working principle is that an optical signal is emitted from the source and then sensed by the photodetector, thus providing the necessary current conduction to activate the external load. In this way, the external load is isolated from dangerous voltage or excessive noise and vibration.

The S11MD5P can be programmed for momentary or continuous operation depending on the application. In momentary operation, the device is activated for a short period of time. In continuous operation, the device is activated for as long as external voltage is applied. The two operation modes are also accompanied by various operating characteristics, such as the working current, start-up current, hold current, and turn-off current.

In addition, the S11MD5P is designed to provide high efficiency and a high level of protection to the system and its external load from overvoltage, excessive current, and high temperature. It also provides a reliable fault protection, allowing the system to be re-started upon the occurrence of an unexpected fault.

Conclusion

The S11MD5P optoisolator is a highly efficient, reliable, and cost-effective device for various industrial applications. It uses a triac output structure to provide isolated operation, helping to ensure that the system and its external load are well protected from overvoltage, current, and temperature fluctuations. With its selectable output, the S11MD5P is suitable for applications requiring momentary or continuous operation, making it a viable choice for motor control, air conditioning, and other industrial machines.