3SMAJ5921B-TP Discrete Semiconductor Products

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The 3SMAJ5921B-TP is a single Zener diode device. It provides higher current, voltage and energy efficiency compared to traditional Zener diode designs. The device is offered in an SOT-23 package, making it a good choice for applications where board space is limited. The 3SMAJ5921B-TP offers a breakdown voltage of 21V and a maximum current rating of 500mA.

The device has a wide range of applications, including protection circuits and voltage reference designs. It is suitable for use in low voltage power supplies, voltage regulators, and Voltage Protection Units (VPU). It can also be used in automotive and aviation applications, as well as any other application requiring voltage protection.

The 3SMAJ5921B-TP device works by allowing current to flow when the voltage across the diode is greater than the breakdown voltage. This allows the diode to absorb any excess energy that could potentially damage the circuit in which it is operating.

When the voltage across the diode is less than the breakdown voltage, it acts as an open circuit and no current flows. This prevents the circuit from exceeding a certain voltage, thereby providing protection from overvoltage conditions. The device also offers reverse current protection, preventing current from flowing in the wrong direction.

The 3SMAJ5921B-TP works by using its Zener breakdown voltage as a reference voltage. When the voltage across the diode exceeds this reference voltage, it turns on and allows current to flow. Conversely, when the voltage across the diode is below the reference voltage, it turns off and no current can flow.

The 3SMAJ5921B-TP device offers a fast response time, low capacitance, and high surge current capability. This makes it ideal for use in a variety of applications, including high-speed data transfer, communication systems, and automotive applications. It is also relatively immune to electromagnetic interference and is RoHS compliant.

In summary, the 3SMAJ5921B-TP is a single Zener diode device that is useful for low voltage power supplies, voltage regulators, and Voltage Protection Units (VPU). It provides higher current, voltage, and energy efficiency compared to traditional Zener diode designs, and offers reliable protection against over voltage conditions. The device is offered in an SOT-23 package and is suitable for use in automotive and aviation applications, as well as any other application requiring voltage protection.

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