1PGSMA4740HM2G

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Diodes, also known as PN junction or diode rectifiers, are two-terminal electrical components designed to conduct current in one direction, with excellent resistance to current in the opposite direction. The 1PGSMA4740HM2G is a single Zener diode offered by Diodes Incorporated that provides a wide range of options for designers seeking optimal battery LED protection solutions for their applications.

This diode features a low reverse breakover voltage of 4.7V, with a Zener impedance less than 50 ohms and a surge thermal rating of 225mA. It is constructed with a planar structure and is available in SOT-23, SC-70, and SOD-123 packages. This single Zener diode also provides power dissipation of 500mW and its electrical insulation system is tested to VA level.

The 1PGSMA4740HM2G single Zener diode is well-suited for low-voltage, low-current applications, especially those requiring battery LED protection solutions. These include automotive, home appliance, and medical device lights, as well as any circuit that requires stable DC voltage or current. Owing to its ability to reduce the voltage to a smaller and controlled level, 1PGSMA4740HM2G can also be used in voltage regulation and timing circuits.

The working principle of the 1PGSMA4740HM2G single Zener diode is simple. It is responsible for controlling the reverse voltage across a PN diode junction, allowing it to blend from breakdown to reverse breakdown. During normal operation, the forward voltage is lower than the breakdown voltage, so the current flow is blocked. However, when the reverse rising voltage exceeds the breakdown voltage, the current will flow immediately, thus providing the necessary protection.

The 1PGSMA4740HM2G is certified to AEC-Q101 standards and is thus highly reliable when used in automotive applications. It provides good protection against voltage drops, overvoltages, and other harmful occurrences, as well as temperature stability in environments ranging from -55 to 125 degrees Celsius. In addition, it also has a high surge performance rating and can still offer good protection after 10K surges at 25A.

The 1PGSMA4740HM2G single Zener diode from Diodes Incorporated is an excellent choice for low-power, low-voltage applications. Its wide range of features makes it capable of providing optimal battery LED protection solutions for automotive, home appliance, and medical device applications.

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