SA28ARL

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SA28ARL is a commonly used TVS (transient voltage suppressor) diode which is designed to protect sensitive electronic components from overvoltage damage. The device is designed to provide protection in two modes of operation: peak pulse power dissipation (PPPD) and continuous low level power dissipation (CLLPD).In the PPPD mode, the SA28ARL is designed to absorb large, high-energy transients. It works by reducing the voltage of an incoming transient to a safe, low level. This is achieved by the rapid heat dissipation of energy within the SA28ARL. In the CLLPD mode, the device works by clamping voltage variation when the voltage on the protected line goes above the nominal working voltage. This ensures protection of the components from long duration, lower energy transients.The SA28ARL has a wide variety of applications from consumer electronics to the automotive industry. In consumer electronics, it is used to protect integrated circuits (ICs), circuit boards and other components from electrostatic discharge (ESD). In home audio equipment and televisions, the device protects the components from voltage surges from the power line. The device is also used to protect line drivers, automotive ECUs and power management ICs from overvoltage transients.In terms of working principle, the SA28ARL is an unidirectional low capacitance diode. On application of an overvoltage transient, the TVS diode responds rapidly by turning on and providing a low impedance path for the transient current. Thus it dissipates the excess energy present within the transient, thus protecting the connected device. As it also has a low capacitance, it does not degrade the signals when used as a signal line protector.As the SA28ARL is rated to absorb high energies, it is extremely robust and reliable. It also has an extremely fast response time, meaning it can provide reliable protection with minimal circuit design tradeoffs. It also has a reverse polarity protection, making it ideal for use in automotive applications.Overall, the SA28ARL is an extremely versatile device, with wide applications in consumer and automotive electronics. Its combination of high energy absorption, fast response time and low capacitance make it an ideal device for protecting sensitive electronic components from overvoltage damage.

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