P4SMA22A

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Transient Voltage Suppression (TVS) diodes, or Transil, are designed to protect electronic devices from transient overvoltage events. The P4SMA22A is a four-terminal, unidirectional bidirectional surface-mounted diode designed to protect digital and analog circuits from catastrophic overvoltage events. It is designed to protect against overload, load dump, and transients caused by lightning strikes and related sources.

The P4SMA22A is a bidirectional transient voltage suppression diode with superior performance when compared to traditional unidirectional transient voltage suppression (TVS) diodes. It is rated at a peak pulse power of 500 W, a peak pulse current of 8 A, and a breakover voltage of 23 V. Its tested clamping voltage is 16.2 V.

The TVS diode is typically connected in parallel to the protected device with the cathode toward the negative supply voltage. During normal operating conditions, the diode is in its forward-biased state and appears as a closed switch. When the reverse supply voltage (VS) exceeds the device’s breakover voltage (VBO), the diode switches to its reversed-biased state, and appears as an open switch.

Once the transient supply voltage (VTrans) exceeds the device’s clamping voltage (VC), the diode conducts and shunts away the excess current. This allows the device to remain safe from transient power surges. The P4SMA22A exhibits excellent avalanche response, fast clamping characteristic, and high surge capacity. Additionally, its small size and low profile make it ideal for applications with limited space availability.

The P4SMA22A transient voltage suppressor is highly effective for use in automotive, telecommunications, and industrial applications. It can also be used to protect data lines such as Ethernet, USB, HDMI, and RS232, and is suitable for consumer, commercial, and medical applications. Its extremely low leakage current and breakdown voltage make it an ideal choice for automotive, medical, and industrial applications.

The P4SMA22A employs advanced technologies and offers superior overvoltage protection for digital and analog circuits. It provides excellent thermal stability, low operating current, and withstands up to 8 A of peak pulse current. The device also boasts a low internal capacitance that ensures noise minimization and superior signal integrity. Its low capacitance and low Qrr rating make it an ideal choice for several applications.

The device features superior temperature stability and can operate in temperatures ranging from -55°C to 150°C. It also features high reliability with a maximum junction temperature of 150°C and a reliability of up to 5 million hours. The P4SMA22A is RoHS compliant and compatible with lead-free soldering. It can also be used in RoHS compliant reflow soldering systems.

In conclusion, the P4SMA22A is a four-terminal, unidirectional bidirectional surface-mounted TVS diode which is designed to protect digital and analog circuits from catastrophic overvoltage events. It can protect against overload, load dump, and transients caused by lightning strikes and related sources. It is highly effective for use in automotive, telecommunications, and industrial applications, and its small size and low profile make it ideal for applications with limited space availability.

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