189NQ135R-1

Series:	--
Packaging:	Bulk
Part Status:	Active
Diode Type:	Schottky
Voltage - DC Reverse (Vr) (Max):	135V
Current - Average Rectified (Io):	180A
Voltage - Forward (Vf) (Max) @ If:	1.07V @ 180A
Speed:	Fast Recovery = 200mA (Io)
Current - Reverse Leakage @ Vr:	4.5mA @ 135V
Capacitance @ Vr, F:	4500pF @ 5V, 1MHz
Mounting Type:	Chassis Mount
Package / Case:	HALF-PAK
Supplier Device Package:	PRM1-1 (Half Pak Module)
Operating Temperature - Junction:	-55°C ~ 175°C

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Introduction to 189NQ135R-1

The 189NQ135R-1 is a single rectifier diode from the 189NQ series from Littelfuse. It is used for applications that require high current flow with fast response times. The 189NQ135R-1 is a low-profile semiconductor component designed to provide fast current conduction and fast response times. Its low profile plays an important role in making it suitable for use in dense architectures. Its fast responding behavior makes it well suited for use in applications that require a fast response to changing signals.

Features of 189NQ135R-1

The 189NQ135R-1 has a few major features that set it apart from most diode products. First, it has a maximum forward current rating of 135 A. This ensures that, even under heavy loads, the component is capable of efficiently conducting current. Additionally, it also features a low forward voltage drop of just 0.71 volts. This results in a high level of overall efficiency, even at higher currents. The component also has a very fast response times of just 35 ns, considerably greater than other PN junction-based rectifiers available on the market.

Application Fields of 189NQ135R-1

The 189NQ135R-1 is typically used in applications that require the efficient conduction of high currents, such as protection against high electrical or thermal stress, or high pulse current applications. Among the most common applications are computing and networking, power supplies, motor control, and automotive applications. The 189NQ135R-1 is also used in medical and telecommunications applications. Such high-current applications require components with a highly efficient current conduction and fast response times, which are properties of the 189NQ135R-1.

Working Principle of 189NQ135R-1

The 189NQ135R-1 is a single rectifier diode, which is a PN-junction device. At its core, it contains two different layers of semiconductor material. The first layer is an N-type material, which contains electrons of negative charge. The second layer is a P-type material, which contains “holes” or positions lacking electrons. In this device, electrons flow from the P-type material to the N-type material, forming an electric current. When the 189NQ135R-1 is exposed to an external voltage that is higher than its forward voltage drop, the electric current will travel through the diode. The diode will then act as a closed switch, and the current will begin flowing from the positive terminal of the external voltage source to the negative terminal. This current flow is known as the "forward bias". In this state, the diode acts like a resistor. When the external voltage drops below the diode\'s forward voltage drop, the electric current will cease flowing. This is called the "reverse bias". When the 189NQ135R-1 is in the reverse bias condition, the electric current can be blocked in both directions. This is useful in prevention of damage to other components in a circuit due to an unexpected voltage spike or surge. The 189NQ135R-1 is designed to limit the current flowing in both directions, providing additional protection against damage.

Conclusion

The 189NQ135R-1 from Littelfuse is a single rectifier diode which provides efficient current conduction, fast response times and excellent current protections features. It is suitable for use in high-current applications, such as power supplies, motor control, or computing and networking and can provide fast response to changing signals. Its working principle is based on the PN junction and its forward voltage drop. It utilizes the reverse bias condition to protect other components from unexpected voltage spikes and surges.

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