SML4741AHE3/5A

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The SML4741AHE3/5A is a high performance, low noise and cost-effective single Zener diode with a low leakage current. The device is leaded in a 2-pin SOD-123 package with a maximum power rating of 200mW, a zener voltage range of 2.5V to 39V, and a total capacitance of 3.1A.

The SML4741AHE3/5A offers a wide application range because of its high temperature operating limits up to 175°C and its low forward voltage drop of 0.7V. It is suitable for general purpose ESD, surge and transient protection in a variety of applications, including computers, consumer electronics, industrial control, medical systems and telecommunications equipment.

The working principle of the SML4741AHE3/5A is based on the Zener breakdown theory. Under a reverse bias voltage, the Zener diode has a very high resistance in the reverse direction, thus protecting other components from current leakage. When a reverse bias voltage reaches a predetermined value, the diode breaks down and a large current starts to flow in the reverse direction. This working principle allows the SML4741AHE3/5A to be used as both a surge protector and a voltage regulator.

The SML4741AHE3/5A is available in a variety of packages and configurations, allowing it to be used in a wide range of applications. It is suitable for high-voltage industrial applications, such as DC-DC converters, AC-DC converters, solar panels, power supplies, and automotive applications. These devices feature low power consumption, minimal noise and excellent temperature stability. In addition, they offer superior over-temperature protection, ESD protection and transient voltage protection.

The SML4741AHE3/5A also offers excellent switching characteristics with a rise/fall time less than 1µs and a maximum current of 200mA typical. The low leakage current of 0.1nA at 125° C provides greater stability over temperature and reduces power consumption. In addition, the device features a low output noise of less than 1.5mV p-p. This noise level helps reduce EMI/RFI interference, thereby improving system performance.

In conclusion, the SML4741AHE3/5A is an excellent single Zener diode for a wide range of applications, offering high performance, low noise, low leakage current and a wide temperature operating range. The device is ideal for surge protection and voltage regulation and has excellent switching characteristics, low output noise and superior over-temperature protection. All of these features make the SML4741AHE3/5A an ideal choice for a variety of applications.

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