LL4148-7 Discrete Semiconductor Products

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Diode Type:	Standard
Voltage - DC Reverse (Vr) (Max):	75V
Current - Average Rectified (Io):	150mA
Voltage - Forward (Vf) (Max) @ If:	1V @ 10mA
Speed:	Small Signal =
Reverse Recovery Time (trr):	4ns
Current - Reverse Leakage @ Vr:	5µA @ 75V
Capacitance @ Vr, F:	--
Mounting Type:	Surface Mount
Package / Case:	DO-213AC, MINI-MELF, SOD-80
Supplier Device Package:	Mini MELF
Operating Temperature - Junction:	-65°C ~ 175°C
Base Part Number:	LL4148

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LL4148-7 is a single rectifier diode with an ultra-low forward voltage. It offers excellent reverse leakage current, fast switching response time, and small surface area. LL4148-7 is typically used as an RF (radio frequency) rectifier in applications such as low frequency transmission cables and CATV systems.The LL4148-7 diode is a small signal diode with a low forward voltage (Vf) and a low reverse leakage current (Irrl). The Vf of the diode is typically less than 0.4 V, and the Irrl is typically less than 0.1 mA. This makes the LL4148-7 ideal for RF applications where low Vf and low Irrl are important.The LL4148-7 is intended for data communication and RF signal transmission applications. It is designed to be used as a rectifier for both positive and negative waveforms, which makes it suitable for use in communications systems that require data transmission over long distances, reducing interference due to wave reflections from the line.The working principle of the LL4148-7 is simple. It acts as a rectifier to convert an AC input signal into a DC output signal. When the diode is forward biased and the input AC signal is greater than the diode\'s Vf, current will flow through the diode and into the load. When the input signal is less than the diode\'s Vf, current will not flow and the diode will act as an open switch, blocking any current from flowing into the load.In addition, the LL4148-7 has a low reverse leakage current, which helps reduce signal distortion, as well as reducing power consumption. The low reverse leakage current also helps reduce the signal-to-noise ratio in applications that use the signal multiplexing technique.Overall, the LL4148-7 is an ideal choice for data or signal transmission applications that require ultra-low forward voltage, low reverse leakage current, and small surface area. It is also suitable for use in CATV systems and low frequency transmission cables. With its excellent performance, the LL4148-7 is sure to provide a reliable, high-quality connection for applications where signal integrity is a prime concern.

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