1N5401 Discrete Semiconductor Products

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Diode Type:	Standard
Voltage - DC Reverse (Vr) (Max):	100V
Current - Average Rectified (Io):	3A
Voltage - Forward (Vf) (Max) @ If:	1.2V @ 3A
Speed:	Standard Recovery >500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr:	5µA @ 100V
Capacitance @ Vr, F:	30pF @ 4V, 1MHz
Mounting Type:	Through Hole
Package / Case:	DO-201AD, Axial
Supplier Device Package:	DO-201AD
Operating Temperature - Junction:	-55°C ~ 150°C
Base Part Number:	1N5401

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Diodes - Rectifiers - Single: 1N5401 Application Field and Working Principle

1N5401 is a fairly popular member of the 1N54xx family of rectifier diodes. It is a single-phase silicon rectifier diode which can usually handle up to 1A current and withstand a maximum voltage up to 50V. The 1N5401 diode is often used as a low current rectifier diode in low-cost and low-power applications. These applications include AC-DC power supplies, free-wheel diodes, DC/DC converters, AC-DC converters, rectifier circuits and switching circuits in industrial, home and entertaiment, and automotive industries.The main principle of a 1N5401 is a simple one. It allows current to flow only in one direction - from anode (positive) to cathode (negative). The basic operation of this diode is very simple, when the diode is forward-biased, it conducts, when it is reverse-biased, it blocks current. This makes it useful in a variety of applications, allowing circuits to be configured to the specific operating parameters that are desired. The 1N5401 is a small-signal rectifier, meaning it is optimized to operate with low currents and low voltages. It has a relatively high leakage current—the current that flows when the diode is reversed-biased—and it may be suitable for switching signals at low frequencies. The maximum forward voltage drop (Vf) for a 1N5401 is usually 1.0V - 1.1V. This usually varies depending on the supplier however, in general this is the typical value and it’s not uncommon to find slightly higher values. The maximum reverse voltage of most 1N5401s is 50V. However, some lower current versions may as low as 25V. As for the reverse current, it usually depends on the amount of voltage applied. It is usually low at 10uA or below, but can increase dramatically at higher voltages; it may be as high as 500uA at 3V.1N5401 is also quite common because it has a low temperature coefficient. This means that it will not be greatly affected by changes in temperature, and its output will generally remain constant regardless of the ambient temperature.Overall, 1N5401 is a reliable generalized application diode. It is cheap and easy to use, has a low voltage drop, and remains stable under a variety of conditions. It can be used in a wide range of applications, from free-wheel diodes to power converters and rectifier circuits. Despite its simple design and structure, it makes a reliable and efficient component in a variety of circuits.

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