LL4148 Discrete Semiconductor Products |
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Allicdata Part #: | LL4148FSTR-ND |
Manufacturer Part#: |
LL4148 |
Price: | $ 0.00 |
Product Category: | Discrete Semiconductor Products |
Manufacturer: | ON Semiconductor |
Short Description: | DIODE GEN PURP 100V 200MA SOD80 |
More Detail: | Diode Standard 100V 200mA Surface Mount SOD-80 |
DataSheet: | LL4148 Datasheet/PDF |
Quantity: | 727500 |
Series: | -- |
Packaging: | Tape & Reel (TR) |
Part Status: | Active |
Diode Type: | Standard |
Voltage - DC Reverse (Vr) (Max): | 100V |
Current - Average Rectified (Io): | 200mA |
Voltage - Forward (Vf) (Max) @ If: | 1V @ 10mA |
Speed: | Small Signal = |
Reverse Recovery Time (trr): | 4ns |
Current - Reverse Leakage @ Vr: | 25nA @ 20V |
Capacitance @ Vr, F: | 4pF @ 0V, 1MHz |
Mounting Type: | Surface Mount |
Package / Case: | DO-213AC, MINI-MELF, SOD-80 |
Supplier Device Package: | SOD-80 |
Operating Temperature - Junction: | -55°C ~ 175°C |
Base Part Number: | LL4148 |
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。The LL4148 is a type of single rectifier diode. A rectifier diode is an electric component that allows for the current to flow in one direction only. It is often used to change the alternating current (AC) to direct current (DC). The LL4148 is designed for low-power applications, such as in communications, and power supplies. Its maximum forward current is 150mA and its peak repetitive reverse voltage is 50V.
The LL4148 is composed of two parts, an anode and a cathode. The anode is the positive side and the cathode is the negative side. The anode is connected to the positive terminal of the power supply and the cathode is connected to the negative terminal. When the power supply applies a forward voltage (which is typically much larger than the forward voltage of the diode), the diode allows current to pass from the anode to the cathode, but not the other way around. This prevents the current from flowing back into the power supply. This process is known as rectification.
The LL4148’s working principle is based on the concept of a voltage-dependant resistor. This is an electrical component that changes its resistance in response to a change in voltage. When a voltage is applied to the diode, the voltage-dependent resistor changes its resistance. If the voltage is greater than the predetermined forward voltage of the device, a conductive path is created between the anode and cathode, allowing current to flow. If the voltage is less than the predetermined forward voltage, the diode acts as an insulator, preventing any current from flowing.
The LL4148 is commonly used in a variety of low-power applications, such as LED drivers, LED lighting, battery charging, communications, and power supplies. Additionally, the diode can be used in radio-frequency (RF) circuits as a switch to block unwanted noise from entering the circuit. The diode is also used in power-conversion circuits, enabling the conversion of AC to DC or vice versa.
In conclusion, the LL4148 is a single rectifier diode that can be used in a variety of low-power applications. The device works on the principle of a voltage-dependent resistor and enables current to pass in one direction only. Its maximum forward current is 150mA and its peak repetitive reverse voltage is 50V, making it suitable for many applications where precision and reliability are desired.
The specific data is subject to PDF, and the above content is for reference
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