TV50C191J-G Circuit Protection

TVS (transient voltage suppressor) diodes are a type of diode which can protect circuits from excessive voltages caused by transients or surges. The TVS diode has a typical voltage range between 5V and 500V, with some devices capable of up to 1500V. The TVS diode can be used for both over-voltage and over-current protection, and is commonly used in automotive, industrial, and consumer electronics applications. The TV50C191J-G is a type of TVS diode developed by Vishay Semiconductor, and is used in many of today’s electronic devices.

The TV50C191J-G is a low leakage, low capacitance, high speed TVS diode designed for use in high-impact applications. It is rated to handle voltage up to 500V, with a peak pulse power rating of 5 kW. It offers a wide operating temperature range from -55°C to 175°C, and has an excellent surge reverse current (IR) and thermal dissipation (θJA) performance. The device also has an industry-standard SOD-323 form factor, which makes it easy to integrate into existing applications.

The TV50C191J-G is typically used in the protection of high-speed data lines, such as those found in USB, IEEE 1394, RS-422, and RS-485 systems. It can be used for both over-voltage and over-current protection, and is capable of providing the necessary protection for devices operating up to 1 GHz. The device also has a lower leakage current than other TVS diodes, making it ideal for applications requiring a low standby current.

When used in an over-voltage protection application, the TV50C191J-G can be connected in series with the protected line. When a transient or surge occurs, the TVS diode will ‘clamp’ the voltage by conducting current from the protected line to ground. This helps to ensure the voltage remains within safe operating limits. The device can also be used for over-current protection, by connecting it in parallel with the protected load. In this way, the diode will conduct current away from the load, helping to prevent the over-current condition.

In summary, the TV50C191J-G is a low leakage, low capacitance, high speed TVS diode designed for use in high-impact applications. It offers a wide operating temperature range and excellent surge reverse current and thermal dissipation performance. The device is typically used in the protection of high-speed data lines, such as those found in USB, IEEE 1394, RS-422 and RS-485 systems, and is capable of providing the necessary protection for devices operating up to 1 GHz. By providing over-voltage and over-current protection, the device can help to ensure the voltage and current remain within safe operating limits, thus ensuring the reliability of your application.