Overview
The LL4148 is a small signal diode produced by onsemi, designed for high-performance switching applications. This diode is characterized by its fast switching capabilities, low forward voltage drop, and high reverse voltage rating. It is encapsulated in a MiniMELF (SOD-80) package, making it suitable for surface mount technology (SMT) assembly. The LL4148 is Pb-free and Halide-free, adhering to environmental regulations.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Configuration | Single | |
| Average Rectified Current-Max | 200 | mA |
| Forward Voltage | 1.0 | V |
| Reverse Voltage-Max [Vrrm] | 100 | V |
| Reverse Recovery Time-Max | 4 | ns |
| Power Dissipation | 500 | mW |
| Diode Capacitance-Max | 4 | pF |
| Average Forward Current-Max | 200 | mA |
| Peak Current-Max | 2 | A |
| Operating Temp Range | -55°C to +175°C | |
| Package Style | SOD-80 (LL-34) | |
| Mounting Method | Surface Mount | |
| Storage Temperature Range | -65°C to +175°C |
Key Features
- Fast switching diode with a reverse recovery time of 4 ns
- Low forward voltage drop of 1.0 V at 10 mA
- High reverse voltage rating of 100 V
- Pb-free and Halide-free, compliant with environmental regulations
- Ideal for automatic insertion due to its MiniMELF (SOD-80) package
- High operating junction temperature range of -55°C to +175°C
Applications
- Automation
- Broadband Access
- Broadband Modem
- Broadcast & Studio
- Building & Home Control
- Camcorder
Q & A
- What is the maximum reverse voltage of the LL4148 diode?
The maximum reverse voltage (Vrrm) of the LL4148 diode is 100 V.
- What is the forward voltage drop of the LL4148 diode?
The forward voltage drop (VF) of the LL4148 diode is 1.0 V at 10 mA.
- What is the reverse recovery time of the LL4148 diode?
The reverse recovery time (trr) of the LL4148 diode is 4 ns.
- What is the maximum power dissipation of the LL4148 diode?
The maximum power dissipation (Ptot) of the LL4148 diode is 500 mW.
- What is the operating junction temperature range of the LL4148 diode?
The operating junction temperature range of the LL4148 diode is -55°C to +175°C.
- What is the package style of the LL4148 diode?
The LL4148 diode is packaged in a MiniMELF (SOD-80) case.
- Is the LL4148 diode Pb-free and Halide-free?
Yes, the LL4148 diode is Pb-free and Halide-free, making it environmentally compliant.
- What are some typical applications of the LL4148 diode?
The LL4148 diode is used in various applications including automation, broadband access, broadband modems, broadcast & studio, building & home control, and camcorders).
- What is the maximum surge forward current of the LL4148 diode?
The maximum surge forward current (IFSM) of the LL4148 diode is 2 A for a pulse width of 1 μs).
- What is the thermal resistance junction to ambient air of the LL4148 diode?
The thermal resistance junction to ambient air (RθJA) of the LL4148 diode is 300 °C/W).
