CRZ39(TE85L,Q,M)

Series:	--
Part Status:	Active
Voltage - Zener (Nom) (Vz):	39V
Tolerance:	±10%
Power - Max:	700mW
Impedance (Max) (Zzt):	35 Ohms
Current - Reverse Leakage @ Vr:	10µA @ 31.2V
Voltage - Forward (Vf) (Max) @ If:	1V @ 200mA
Operating Temperature:	-40°C ~ 150°C (TJ)
Mounting Type:	Surface Mount
Package / Case:	SOD-123F
Supplier Device Package:	S-FLAT (1.6x3.5)

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CRZ39 is a type of single junction zener diode rated for a 5.1 volts zener breakdown. This device is mainly used in applications involving voltage regulation or clamping. It is manufactured in a two-lead, TO-92 low noise plastic package. The device is designed to operate over a temperature range from -55°C to 125°C.Charge Carrier Characteristics and Working PrincipleA Zener diode is a diode which has a special electrical property known as the Zener breakdown. This effect occurs when the PN junction is reverse bias and it is the result of the formation of a depletion region that has a voltage drop. When this voltage drop reaches the breakdown value, a large current is allowed to flow through the diode.Unlike a normal diode, in which the breakdown voltage is determined by the amount of reverse bias current flowing, the Zener breakdown voltage is determined by the design of the semiconductor material and the doping process used. In the case of the CRZ39, this breakdown voltage is specified at 5.1 volts.Application FieldsThe CRZ39 is primarily used as a voltage regulator diode. It works by clamping the voltage when the input voltage exceeds the breakdown value, thus preventing the voltage from exceeding the maximum safe value. It can also be used in applications such as over-voltage protection, where it is used to provide “crowbar” protection by quickly scuttling all current when the maximum voltage is exceeded.The CRZ39 is also very useful for providing reference voltages for analog and digital circuits. By connecting the device to a known voltage and then connecting the output to the input of the circuit, the circuit will be able to maintain a constant reference voltage, independent of changes in the input supply voltage.The CRZ39 can also be used in diode-bridge configuration for blocking AC or DC signals. This can be used for power delivery, signal isolation, and EMI (electromagnetic interference) suppression.ConclusionThe CRZ39 is a versatile device that can be used for a wide range of applications. It is a single junction Zener diode with a breakdown voltage of 5.1 volts, utilizes the Zener breakdown effect, and is rated for a temperature range from -55°C to 125°C. It can be used for voltage regulation, reference voltage generation, over-voltage protection, and EMI suppression.

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