1N5918P/TR8

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	5.1V
Tolerance:	±20%
Power - Max:	1.5W
Impedance (Max) (Zzt):	4 Ohms
Current - Reverse Leakage @ Vr:	5µA @ 2V
Voltage - Forward (Vf) (Max) @ If:	1.2V @ 200mA
Operating Temperature:	-65°C ~ 150°C
Mounting Type:	Through Hole
Package / Case:	DO-204AL, DO-41, Axial
Supplier Device Package:	DO-204AL (DO-41)
Base Part Number:	1N5918

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1N5918P/TR8 Diodes - Zener - Single

The 1N5918P/TR8 is a type of diode from the family of Zener type diodes. Single-ended Zener diodes are able to regulate the voltage at its cathode even in the presence of large differential voltages. This device is used as an integrated circuit in power management and audio applications. The construction of the 1N5918P/TR8 is vastly different than most other types of diodes. Unlike most other types of diodes, Zener diodes feature a low barrier built-in between the cathode and anode. This low barrier means the device has two properties; a depletion region and a zone where the carrier density is relatively high. As a result, this element has a very low voltage drop for both forward-bias and reverse-bias. In the forward-bias direction, the 1N5918P/TR8 operates similarly to standard diodes. The current flow is from the anode to the cathode and the diode drop is usually 0.7V. In the reverse-bias direction, the diode will start conducting when the applied voltage exceeds the Zener voltage. This Zener voltage is usually very lower than the applied voltage, making this type of diode ideal for circuit protection (clamping) and voltage regulation applications. The 1N5918P/TR8 is a very common device and is available in a variety of packages, including surface mount and through-hole. It features a breakdown voltage range of between 5.1V to 39V and a dissipation power rating of 500mW. The device is also specified with a wide operating temperature range from -55°C to +175°C. Apart from its use in power management and audio applications, the 1N5918P/TR8 also finds utility in many other applications. It is frequently utilized in LED display backlighting, contactor/lighting/contactless control, automotive engine/sensor control, and smooth motor driving. It is also used in medical imaging, military high-temperature system, anti-interference processing, photovoltaic power generation, communication system control, and the internet of things. The 1N5918P/TR8 has many benefits, the most important of which is its compact size and low dissipation power. It boasts a very low voltage drop and is capable of withstanding large differential voltages. It also features a wide operating temperature range and is available in a variety of packages. As a result, this device is highly flexible and ideal for a wide range of applications. To sum up, the 1N5918P/TR8 is a type of single-ended Zener diode that is used mainly in power management and audio applications. It is able to regulate the voltage at its cathode even in the presence of large differential voltages. The device also boasts a low barrier between its cathode and anode, wide operating temperature range, and a breakdown voltage range of 5.1 to 39V. As such, the 1N5918P/TR8 finds utility in various other applications, such as LED display backlighting, contactless control, and photovoltaic power generation.

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