MM3Z8V2T1

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Voltage - Zener (Nom) (Vz):	8.2V
Tolerance:	±6%
Power - Max:	200mW
Impedance (Max) (Zzt):	15 Ohms
Current - Reverse Leakage @ Vr:	700nA @ 5V
Voltage - Forward (Vf) (Max) @ If:	900mV @ 10mA
Operating Temperature:	-65°C ~ 150°C
Mounting Type:	Surface Mount
Package / Case:	SC-76, SOD-323
Supplier Device Package:	SOD-323
Base Part Number:	MM3Z8V2

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Diodes - Zener - SingleThe MM3Z8V2T1 is a Zener diode designed as voltage regulator. Descended from Zener diodes, these are a special type of diode with a wide array of applications due to their ability to hold a fixed voltage over a large range of current. This makes them indispensable in voltage regulators, circuit protectors, and other devices that require a stable source of source of current at a fixed voltage. The MM3Z8V2T1 is a single Zener diode rated for a nominal voltage of 8V and a peak power dissipation of 500mW. It has a zener impedance factor of 33Ω and a junction to ambient thermal resistance of 5°C/W. The component has a lead spacing of 1.3mm and a VF of 1.2V at a 4mA current. To understand how a Zener diode, and the MM3Z8V2T1 in particular, works, it is helpful to first consider how a regular diode works. A regular diode is an electrical component that allows current to pass through it in one direction only, and blocks it from passing the other way. For example, if the anode of a regular diode is connected to a higher voltage than the cathode, then current will flow through it. In the MM3Z8V2T1 diode, this regular behaviour is “enhanced” with a special property: when the voltage across a Zener diode exceeds a particular potential (called its “Zener voltage”), current flows through in the opposite direction. The MM3Z8V2T1 is designed to maintain a constant 8V output. When there is insufficient voltage on the input side, current flows in the reverse direction, “charging up” the diode. This reverse current “charges up” the diode until it reaches the Zener voltage, which is when it will stop charging up and hold the voltage at the Zener voltage, thus providing a stable 8V output. If the voltage on the input side rises above 8V, the diode will remain in its “steady state” and maintain the 8V output. The MM3Z8V2T1 is most commonly used for voltage regulation. This is when a device needs to maintain a fixed voltage level regardless of fluctuations on the input side, and is used in a wide range of applications from power supplies to mobile phones. They are also used in circuit protection, where they are used to prevent damage from unexpected surges of voltage. By allowing current to suddenly flow in the opposite direction, they can act as a buffer to absorb the excess voltage. The MM3Z8V2T1 is also very useful in other applications where a reliable, known voltage level is required. For example, they can be used to power an LED driver circuit, where the diode maintains an constant voltage output to the LED. This ensures the LED receives a consistent current and is not overdriven. In conclusion, the MM3Z8T2T1 is a single Zener diode designed as voltage regulator with a wide array of applications due to its ability to hold a fixed voltage over a large range of current. It is most commonly used for voltage regulation and circuit protection, but can also be used for other applications for which a reliable, known voltage level is required.

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