MM3Z3V3B Discrete Semiconductor Products

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A MM3Z3V3B is a single Zener diode, a type of diode that permits current flow in one forward direction, usually from the anode to the cathode, just like a normal diode. Unlike a normal diode, however, the Zener diode also permits current flow in the reverse direction when the voltage of said current meets or exceeds the Zener voltage – a voltage specific to each individual Zener diode. When the specified Zener voltage is met or exceeded, the Zener diode creates a stable channel of direct current flow from the cathode to the anode, offering an effective voltage regulation solution.

The MM3Z3V3B particular can be best characterized as a low-power diode, with a rated maximum power dissipation of 250 milliwatts in a typical operating environment. Its typical forward voltage drop (and thus its effective current rating) is rated to be 600 mV at 1 ampere. While its forward current rating is not ideal, it should suffice for most applications, though care should be taken when exceeding 2 A. For applications that demand greater performance, the MM3Z3V3B is offered in a “high current version” rated to handle up to 8 A.

The MM3Z3V3B meets all RoHS requirements, possess exceptional thermal performance, and also boasts excellent stability and excellent clamping capability. Its junction temperature of 125 Celsius allows for a broad operating temperature range, and it can be used in both commercial and industrial applications. Furthermore, the MM3Z3V3B is capable of a maximum reverse power dissipation of up to 5 watts, though it is recommended to keep within the specified ratings to ensure maximum performance and life. The MM3Z3V3B is typically used in diode ladders and for ESD / EMI protection, though it can be utilized for various other applications as well.

The MM3Z3V3B works by utilizing the Zener breakdown phenomenon, wherein high reverse electric fields produce large and stable current flows when the Zener voltage is met. As previously mentioned, the reverse electric field is different for every diode, resulting in their unique voltage drop and current value when the specified voltage is met. The MM3Z3V3B’s reverse voltage, or Zener voltage, is rated at 3.3 V, meaning when the voltage reaches, or surpasses, 3.3 V, it may permit current flow in the reverse direction, providing a steady, stable DC output.

The MM3Z3V3B is thus the perfect low-cost option for any application that requires excellent performance and reliability, but remains within the specified currents and voltages. Its excellent thermal performance and wide operating temperature range make it ideal for a variety of industrial and commercial applications, and its RoHS compliance makes for easy integration into more modern electronic systems.

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