Overview
The 1N4148WS is a general-purpose switching diode produced by SMC Diode Solutions. This diode is designed for small signal applications and is known for its fast switching speed and compact surface mount package (SOD-323). It is widely used in various electronic circuits where fast switching and reliable performance are required.
Key Specifications
| Parameter | Symbol | Value | Unit |
|---|---|---|---|
| Non-Repetitive Peak Reverse Voltage | VRSM | 100 | V |
| Repetitive Peak Reverse Voltage | VRRM | 75 | V |
| Continuous Forward Current | IO | 150 | mA |
| Repetitive Peak Forward Current | IFRM | 300 | mA |
| Non-Repetitive Peak Forward Surge Current (t = 1.0 μs) | IFSM | 4.0 | A |
| Power Dissipation (TC = 25°C) | PD | 200 | mW |
| Thermal Resistance, Junction-to-Ambient | RθJA | 625 | °C/W |
| Operating Junction Temperature Range | TJ | -55 to +150 | °C |
| Storage Temperature Range | TSTG | -55 to +150 | °C |
| Reverse Recovery Time | trr | 4 | ns |
| Forward Voltage (IF = 150 mA) | VF | 1.25 | V |
| Junction Capacitance (VR = 0, f = 1 MHz) | CJ | 2 | pF |
Key Features
- Fast switching speed with a reverse recovery time of 4 ns.
- Very small surface mount package (SOD-323) for compact designs.
- General purpose switching diode suitable for a wide range of applications.
- High conductance and low forward voltage drop.
- Pb-free and RoHS compliant, ensuring environmental sustainability.
- Moisture level sensitivity level 1 and matte tin (Sn) lead finish.
- Green mold compound for reduced environmental impact.
Applications
The 1N4148WS diode is versatile and can be used in various electronic circuits, including:
- General purpose switching applications.
- Signal processing and amplification circuits.
- Rectifier circuits where fast recovery is necessary.
- Automotive and industrial control systems.
- Consumer electronics requiring compact and reliable diodes.
Q & A
- What is the maximum repetitive peak reverse voltage of the 1N4148WS diode?
The maximum repetitive peak reverse voltage (VRRM) is 75 V.
- What is the continuous forward current rating of the 1N4148WS diode?
The continuous forward current (IO) is 150 mA.
- What is the reverse recovery time of the 1N4148WS diode?
The reverse recovery time (trr) is 4 ns.
- What is the maximum forward voltage drop at 150 mA for the 1N4148WS diode?
The maximum forward voltage drop (VF) at 150 mA is 1.25 V.
- What is the junction capacitance of the 1N4148WS diode?
The junction capacitance (CJ) at VR = 0 and f = 1 MHz is 2 pF.
- Is the 1N4148WS diode RoHS compliant?
Yes, the 1N4148WS diode is Pb-free and RoHS compliant.
- What is the operating junction temperature range for the 1N4148WS diode?
The operating junction temperature range (TJ) is -55°C to +150°C.
- What is the power dissipation rating of the 1N4148WS diode at 25°C?
The power dissipation (PD) at 25°C is 200 mW.
- What is the thermal resistance, junction-to-ambient, for the 1N4148WS diode?
The thermal resistance, junction-to-ambient (RθJA), is 625 °C/W.
- In what type of package is the 1N4148WS diode available?
The 1N4148WS diode is available in a SOD-323 surface mount package.
