DSA9-16F

Series:	--
Packaging:	Bulk
Part Status:	Active
Diode Type:	Avalanche
Voltage - DC Reverse (Vr) (Max):	1600V
Current - Average Rectified (Io):	11A
Voltage - Forward (Vf) (Max) @ If:	1.4V @ 36A
Speed:	Standard Recovery >500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr:	3mA @ 1600V
Capacitance @ Vr, F:	--
Mounting Type:	Chassis, Stud Mount
Package / Case:	DO-203AA, DO-4, Stud
Supplier Device Package:	DO-203AA
Operating Temperature - Junction:	-40°C ~ 180°C

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IntroductionThe DSA9-16F is a silicon rectifier diode from Diodes Incorporated with 16 leads. This diode is mainly used in low frequency rectification applications, along with high speed switching applications due to its low forward voltage drop. It is a fast switching diode, and has a minimum reverse recovery time of 15 ns. This diode also has a high reverse voltage of 800 V. Application FieldsThe DSA9-16F rectifier diode is mainly used in low frequency rectification applications since it has a low voltage drop, which reduces power loss in the rectification stage. It is also used in high speed switching applications due to its fast switching time, which is critical in high speed switching circuits. In addition, it is also used in various industrial, automotive and consumer electronics applications, such as DC-DC converters, motor control circuits, UV and infrared detection, switching supplies, and lighting devices.Working PrincipleThe DSA9-16F works as a unidirectional current regulator by providing a low impedance path for current to pass through in the forward direction. This is achieved by the p-n junction, which does not allow current to flow in the reverse direction and acts as a diode. When a positive voltage is applied to the anode of the diode, electrons cross the junction between the n-type and the p-type semiconductor material, forming a small current which then increases linearly according to the applied voltage. When a negative voltage is applied, the current passes through the diode in the reverse direction for a very small time. When the DSA9-16F is operating in the forward bias region, the current flowing through the diode is given by the expression I=α Ie^V/Vt where I is the current, V is the applied voltage, Vt is the thermal voltage, and Ie is the reverse saturation current. The forward voltage drop is given by the expression Vf=Vd + If*Rd where Vf is the forward voltage, Vd is the diode voltage drop, If is the forward current, and Rd is the dynamic resistance of the diode.ConclusionThe DSA9-16F is a fast switching diode with a reverse voltage of up to 800 V, and is mainly used in low frequency rectification and high speed switching applications. It works as a unidirectional current regulator, and its forward voltage drop is given by a simple expression Vf=Vd + If*Rd. Its low voltage drop and fast switching time make it suitable for many different industrial, automotive, and consumer electronics applications.

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