3EZ9.1D10/TR12

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	9.1V
Tolerance:	±10%
Power - Max:	3W
Impedance (Max) (Zzt):	2.5 Ohms
Current - Reverse Leakage @ Vr:	3µA @ 7V
Voltage - Forward (Vf) (Max) @ If:	1.2V @ 200mA
Operating Temperature:	-65°C ~ 150°C
Mounting Type:	Through Hole
Package / Case:	DO-204AL, DO-41, Axial
Supplier Device Package:	DO-204AL (DO-41)
Base Part Number:	3EZ9.1

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Introduction to 3EZ9.1D10/TR12

The 3EZ9.1D10/TR12 is a type of a single Zener diode, used for voltage regulation and as a clipper or as a clamp in electrical circuits. It is used in applications that require reverse breakdown voltage up to 9.1 V, and with a clamping voltage of 12 V.

Applications

The 3EZ9.1D10/TR12 is a great choice of device for applications where it is important to regulate the voltage, or where a clamp or clipper is needed to prevent damage to the connected load. It can be used in power supplies, DC-DC converters, digital circuits, automotive, and communications devices. It is also used in household devices, as it provides a stable voltage in the presence of fluctuations in the input voltage.The 3EZ9.1D10/TR12 is chiefly used for protecting circuits from over-voltage conditions, but its fast response time also makes it perfect for protecting against transients. It also makes a great EMI (Electro-Magnetic Interference) suppressor.

Working Principle

When the input voltage rises, the electrostatic field that builds up between the junction and substrate of the 3EZ9.1D10/TR12 triggers the Zener breakdown voltage, shutting off the current flow before the device is damaged. This phenomenon is known as Zener breakdown.The 3EZ9.1D10/TR12 acts as a positive-temperature coefficient resistor, regulating the voltage by dissipating more power as the temperature rises. This property also makes it work as a temperature diagnosis.It also functions as a clipper, limiting the current to the given level when used in a power supply.

Operation

The 3EZ9.1D10/TR12 has two terminals—anode and cathode—and two leads for the connection. The anode must always be connected to a positive voltage, while the cathode should be connected to ground.When the input voltage rises, current will pass through the diode, creating a voltage across the junction. When the input voltage reaches the Zener breakdown voltage, the diode starts to break down, creating a reverse current flow, which stops the further rise in voltage.The 3EZ9.1D10/TR12 can dissipate up to 1 watt at 25 °C. The Zener diode should be operated at the rated range of temperature, not exceeding its maximum power rating, to prevent failure.

Conclusion

The 3EZ9.1D10/TR12 is a type of single Zener diode, used for voltage regulation and as a clipper or as a clamp in electrical circuits. It is used in many applications where it is important to regulate the voltage, and can be used in power supplies, DC-DC converters, digital circuits, automotive and communications devices, and in household appliances.It works on the principle of Zener breakdown and acts as a positive-temperature coefficient resistor, regulating the voltage by dissipating more power as the temperature rises. It also acts as a clipper, limiting the current to the given level when used in a power supply.The 3EZ9.1D10/TR12 has two terminals—anode and cathode—for the connection, and can dissipate up to 1 watt at 25 °C without fail. It should be operated at the rated range of temperature, not exceeding its maximum power rating, to prevent failure.

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