1N5987D

Series:	--
Packaging:	Bulk
Part Status:	Active
Voltage - Zener (Nom) (Vz):	3V
Tolerance:	±1%
Power - Max:	500mW
Impedance (Max) (Zzt):	95 Ohms
Current - Reverse Leakage @ Vr:	50µA @ 1V
Voltage - Forward (Vf) (Max) @ If:	1.1V @ 200mA
Operating Temperature:	-65°C ~ 175°C
Mounting Type:	Through Hole
Package / Case:	DO-204AH, DO-35, Axial
Supplier Device Package:	DO-35

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1N5987D is a member in the family of single Zener diode. This diode has many different applications and has become a key component in many electronic circuits. It is commonly used in noise decoupling, motor control, and current sensing.The working principle of a single Zener diode is based on the non-linear voltage-current characteristic of a PN junction diode. This property is known as the Zener effect. The Zener effect enables the diode to control a voltage in the reverse breakdown region. In this region, the diode is essentially conducting in the reverse direction. Then the voltage across it is essentially a constant value and thereby will not be affected by external sources of voltages and current.1N5987D has a variety of specifications. It has a maximum reverse-breakdown voltage of 400V, a minimum operating temperature of -55℃, and a maximum operating temperature of +125℃. It also has a peak power dissipation of 500 mW, and a storage temperature of -55 to +150℃. In addition, it has a uni-polar unit of 28 mA, and can withstand surge current up to 3 amps.1N5987D is used for different application requirements. It is an ideal solution for applications requiring a constant voltage supply from a fluctuating power source, including noise decoupling, motor control, and current sensing. With its high temperature operating range, 1N5987D can also be used in applications requiring accurate voltage control in extreme temperatures. In noise decoupling applications, 1N5987D can be used to isolate sensitive loads from noisy power sources by providing constant voltage supply. This helps in minimizing interference and unwanted disturbances that can cause a device to malfunction or be damaged.In motor control applications, the diode is used to regulate the speed and direction of a motor, often in combination with voltage regulators, pulse width modulators and microcontroller-based inverter/drivers. This helps in providing precise control over the motor speed and direction.In current sensing applications, the diode works in conjunction with an amplifier to measure low level current by providing a constant voltage supply. This helps to accurately measure electric current and prevents the current from fluctuating due to the presence of any external voltage sources.1N5987D was introduced for all the applications mentioned above and has now become a versatile and stable part in many electronic circuits. It is a low cost, low power and reliable option for noise decoupling, motor control and current sensing applications.

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