Overview
The LL4148-T is a fast-switching diode manufactured by Rectron USA. It is a silicon epitaxial planar diode known for its high conductance and reliability. This diode is available in both through-hole and surface mount versions, making it versatile for various applications. The LL4148-T is particularly noted for its fast recovery time, which is crucial in high-frequency switching applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Maximum Repetitive Reverse Voltage (VRRM) | 100 | V |
| Average Rectified Forward Current (IF(AV)) | 200 | mA |
| Peak Forward Current (IF) | 500 | mA |
| Non-Repetitive Peak Forward Surge Current (IFSM) | 1 A (pulse width = 1.0 s), 2 A (pulse width = 1.0 μs) | A |
| Forward Voltage (VF) | 0.62 to 1 | V |
| Reverse Current (IR) | 5 μA | A |
| Reverse Recovery Time (trr) | 4 ns | ns |
| Diode Capacitance | 4 pF | pF |
| Power Dissipation (PD) | 500 mW | mW |
| Junction Temperature (TJ) | -55 to +175 | °C |
| Storage Temperature Range (TSTG) | -65 to +200 | °C |
Key Features
- Fast switching speed with a reverse recovery time of 4 ns
- High conductance and reliability
- Available in both through-hole (DO-35) and surface mount (Mini MELF SOD-80) versions
- Pb-free and RoHS compliant
- High reverse voltage of 100 V
- Low forward voltage drop (0.62 to 1 V)
- Low reverse current (5 μA)
Applications
- Extreme fast switches and high-frequency applications
- Prevention of reverse polarity problems
- Protection of power electronic switches operating at high switching frequencies
- Used as a protection device in various circuits
- Current flow regulators
Q & A
- What is the maximum repetitive reverse voltage of the LL4148-T diode?
100 V
- What is the peak forward current rating of the LL4148-T diode?
500 mA
- What is the reverse recovery time of the LL4148-T diode?
4 ns
- Is the LL4148-T diode Pb-free and RoHS compliant?
- What are the typical applications of the LL4148-T diode?
Extreme fast switches, prevention of reverse polarity problems, protection of power electronic switches, and current flow regulators.
- What is the junction temperature range of the LL4148-T diode?
-55 to +175 °C
- What is the storage temperature range of the LL4148-T diode?
-65 to +200 °C
- What are the equivalent diodes to the LL4148-T?
BAS32, 1N4148, 1N4448, 1N4154
- What is the power dissipation rating of the LL4148-T diode?
500 mW
- What package types are available for the LL4148-T diode?
Through-hole (DO-35) and surface mount (Mini MELF SOD-80)
