1N2974B

Series:	--
Packaging:	Bulk
Part Status:	Active
Voltage - Zener (Nom) (Vz):	10V
Tolerance:	±5%
Power - Max:	10W
Impedance (Max) (Zzt):	3 Ohms
Current - Reverse Leakage @ Vr:	25µA @ 7.6V
Voltage - Forward (Vf) (Max) @ If:	1.5V @ 2A
Operating Temperature:	-65°C ~ 175°C
Mounting Type:	Chassis, Stud Mount
Package / Case:	DO-203AA, DO-4, Stud
Supplier Device Package:	DO-213AA
Base Part Number:	1N2974

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A diode is a type of electronic device that allows current to flow in only one direction. The 1N2974B, a single Zener diode, is commonly used in power supply and voltage regulation applications. The 1N2974B has a wide range of potential applications, including voltage regulation, protection, and power supply.The 1N2974B has a reverse breakdown voltage of 10V with an operating current of 10mA. This diode acts as a voltage limiter and regulator, protecting devices against overvoltage. The 1N2974B is made of cadmium sulfide, an alloy of cadmium and zinc sulfide, which makes it ideal for a range of temperatures from -65°C to +200°C.The working principle of a 1N2974B is based on the physical process of the breakdown of a material when a certain forward voltage is applied. This breakdown occurs when the applied voltage causes a very high current to flow until the diode is destroyed. The reverse voltage of the 1N2974B cannot exceed its rated maximum of 10V as the risk of silicon breakdown is too high.When a 1N2974B connects in parallel with a network, it ensures that the voltage passing through it does not exceed its breakdown voltage, thus protecting the device. In addition, when used in series with the load, it limits the current passing through the load and protects against excessive currents.The 1N2974B is used in a variety of power supply applications, including voltage regulator circuits, switching regulators, and motor speed controllers. It is also often used in the protection circuits of equipment such as sensors, television sets, and computers. Additionally, it can be used in other applications such as avalanche photodiodes, light detectors, and thermistors.In summary, the 1N2974B is a single Zener diode that can be used as a voltage regulator and limiter in a variety of applications. It is constructed from cadmium sulfide which makes it suitable for a wide range of temperatures from -65°C to +200°C. It has a 10V breakdown voltage and 10mA operating current. This diode can be used in a variety of power supply applications, protection circuits, and even light detectors.

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