BAT43-TR

Series:	Automotive, AEC-Q101
Packaging:	Tape & Reel (TR)
Part Status:	Active
Diode Type:	Schottky
Voltage - DC Reverse (Vr) (Max):	30V
Current - Average Rectified (Io):	200mA (DC)
Voltage - Forward (Vf) (Max) @ If:	450mV @ 15mA
Speed:	Small Signal =
Reverse Recovery Time (trr):	5ns
Current - Reverse Leakage @ Vr:	500nA @ 25V
Capacitance @ Vr, F:	7pF @ 1V, 1MHz
Mounting Type:	Through Hole
Package / Case:	DO-204AH, DO-35, Axial
Supplier Device Package:	DO-35
Operating Temperature - Junction:	125°C (Max)

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BAT43-TR Application Field and Working Principle

Diodes, or rectifiers, are essential components used in many electronics applications. Often, single diodes are used to prevent currents from flowing back into a circuit. One such single diode is the BAT43-TR, a small, yet powerful device which can be found in a range of products, from consumer electronics to industrial machines. This article will explore the application field and working principle of the BAT43-TR.

Application Field

The BAT43-TR is a rectifier diode, meaning it allows current to flow one way, but not the other. This makes it ideal for applications where it’s especially important to protect components and devices from reverse currents. As the BAT43-TR is a small package, it is often used in consumer electronic products, such as portable music players, digital cameras and TVs, as it can fit in tight spaces. It is also widely utilised in industrial applications, in fields such as automotive, power and communication, as it can manage current up to 1A, while some of its alternatives can only manage as low as 0.5A. Furthermore, the BAT43-TR presents a more reliable and efficient solution than other single diodes for a variety of applications which require a low forward voltage (~0.4V).

Working Principle

The BAT43-TR is a P-type semiconductor device, meaning that electrons flow from the P-region to the N-region. When voltage is applied to the P-type material, the electrons can start to flow from the P-region to the N-region, however, once the diode is “saturated”, no further current can flow. This is because the electrons become “locked” in the N-region and can’t flow back to the P-region. When the voltage is reversed, the electrons held in the N-region can’t flow any further and the diode effectively acts as an insulator, preventing current from flowing the opposite way. This is why the BAT43-TR is used prevent reverse currents in many circuits.

Conclusion

The BAT43-TR is a single diode with a range of useful applications. It is commonly used for the protection of components and devices from reverse currents, and its small form factor makes it ideal for use in consumer electronics. It has a current rating of 1A and a forward voltage of ~0.4V, making it more reliable and efficient than some other single diodes. The BAT43-TR works by utilising a P-type semiconductor material, with electrons flowing from P-region to N-region. When the voltage is reversed, however, the electrons can’t flow any further and the diode acts as an insulator, preventing current from flowing the opposite way.

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