1N4125 (DO35)

Series:	--
Packaging:	Bulk
Part Status:	Active
Voltage - Zener (Nom) (Vz):	47V
Tolerance:	±5%
Power - Max:	400mW
Impedance (Max) (Zzt):	250 Ohms
Current - Reverse Leakage @ Vr:	10nA @ 35.75V
Voltage - Forward (Vf) (Max) @ If:	1V @ 200mA
Operating Temperature:	-65°C ~ 200°C
Mounting Type:	Through Hole
Package / Case:	DO-204AH, DO-35, Axial
Supplier Device Package:	DO-35
Base Part Number:	1N4125

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1N4125 (DO35) is a diode of the Zener-Single type. It is commonly used for functionality such as rectification, inversion, switching, voltage-stabilizing and protection circuitry. In particular, this diode is most commonly used in voltage regulation, surge protection, and over-voltage protection.Working principleThe 1N4125 is essentially a normal PN-junction diode with a crystalline structure that has been purposely engineered to allow the diode to breakdown when the reverse-bias voltage is greater than a certain specified value. This characteristic behavior of the 1N4125 allows it to be used as a voltage regulator, voltage stabilizer, or as a surge protection device.When the reverse-bias voltage is greater than the specified breakdown voltage of the 1N4125 (also known as the Zener voltage or the avalanche voltage) the PN-junction enters into a state of breakdown and conducts in the reverse-direction. This means that the breakdown voltage of the diode is essentially clamped, allowing components downstream of the diode to be effectively protected from voltage surges and over-voltage conditions.Application field1N4125 (DO35) is a widely used Zener diode, mainly used to regulate reverse voltage. Since it can limit power surges and absorb power supply overvoltage, it is widely used in various medium, small and high-power power supply systems and switching power supplies, as well as in various types of high-frequency radio applications and communications systems.In addition, it is also suitable for various concentrators, long-distance repeaters, TVs and home appliance products, microwave ovens, telephone systems, computer and peripherals, and other industrial and consumer products such as intelligent control systems, medical instruments and other systems. Because of its wide range of applications, this diode has proven to be a valuable component in modern electronics.In conclusion, the 1N4125 (DO35) diode plays an integral role in providing reliable voltage regulation and surge protection solutions in modern electronics. By finely engineering the crystalline structure of the PN-junction, this diode is able to effectively regulate voltages and withstand significant power surges. This makes the 1N4125 (DO35) an essential component for the reliability and stability of electronic systems.

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