JANTX1N748A-1

Series:	Military, MIL-PRF-19500/127
Packaging:	Bulk
Part Status:	Active
Voltage - Zener (Nom) (Vz):	3.9V
Tolerance:	±5%
Power - Max:	500mW
Impedance (Max) (Zzt):	20 Ohms
Current - Reverse Leakage @ Vr:	2µA @ 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 (DO-204AH)

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JANTX1N748A-1 Application Field and Working Principle of Single Zener DiodeSingle Zener diode is a commonly used part of various devices’ circuitry, and is especially suited for applications requiring voltage regulation and/or protection. The JANTX1N748A-1, as a sub-category of this type of device, has a wide array of both applications and features.The JANTX1N748A-1 is a 2 watt zener diode, with symmetry, high power, sharp cut-off characteristics, and tight parts-per-million limits, and is available in a wide range of voltage options with a Tolerance of 5%. It is comprised from well-made parts, and is able to form part of high-quality, high-reliability products when used in combination with different components appropriately.Within the JANTX1N748A-1 zener diode, the cathode and anode are formed on a common die. The junction of the anode and cathode are formed by diffusing out of an impurity into a pre-prepared intrinsic semiconductor to form a layer of high concentration ‘P’ (positive-side) and “N” (negative-side) regions of semiconductor material. The P and N regions are opposites, forming a rectifying junction structure.The main working principle of the JANTX1N748A-1 is that during a forward biased condition, free electrons from the N-side will recombine with holes on the P side of the diode junction and become steady state carriers; thereby producing a low forward voltage drop, and allowing the application of an externally applied voltage. When a reverse voltage is applied, the forward biased condition is no longer in effect and the junction region is spared any further current flow, cutting off any current and preventing damage to the parts of the device or the circuit. The JANTX1N748A-1 is mainly used in applications that require voltage regulation, as well as providing protection to the circuit from over-currents and over-voltages. For example, voltage regulators, surge protection circuits and reverse current protection circuits. It can also be used where fast response time is a requirement, such as in taming the voltage spikes associated with relay coils, and electronically controlled parameters in automatic assemblies.The JANTX1N748A-1 is typically used in series with other components, such as resistors and capacitors, to allow the device to perform voltage regulation. Resistors in particular may be used to limit the amount of current that can be passed through the zener diode, preventing overloads and damage from occurring to the device and the circuit. Capacitors can be used in conjunction with the zener diode to provide noise suppression or prevent high-frequency oscillations in the circuits. The JANTX1N748A-1 is a reliable and effective device due to its well-made parts and high-quality design, allowing it to form part of high-quality, high-reliability products. Its versatility, wide array of applications and ample features make it a widely used single zener diode in many different electronic systems and assemblies.

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