Overview
The 1N4148WS is a fast switching diode designed for general-purpose switching applications. It is available in a small surface-mount package (SOD-323) and is widely used in various electronic circuits due to its high conductance and fast switching speed.
This diode is lead-free and fully RoHS compliant, making it suitable for use in a wide range of applications, including those requiring high reliability and environmental compliance.
Key Specifications
| Parameter | Symbol | Value | Unit |
|---|---|---|---|
| Non-Repetitive Peak Reverse Voltage | VRM | 100 | V |
| Peak Repetitive 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=1.0s) | IFSM | 1.0 | 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 |
| Forward Voltage (IF = 10 mA) | VF | 0.86 | V |
| Reverse Recovery Time | TRR | 4 ns | |
| 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) ideal for automatic insertion.
- High conductance suitable for general-purpose switching applications.
- Totally lead-free and fully RoHS compliant.
- Halogen and antimony free, making it a “green” device.
- Moisture sensitivity level 1 per J-STD-020.
- Solderable per MIL-STD-202, Method 208.
- Polarity indicated by a cathode band.
Applications
- General-purpose switching applications.
- Automotive applications (AEC-Q101 qualified for specific versions).
- Consumer electronics requiring fast switching and high reliability.
- Industrial control systems and automation.
- Medical equipment and safety devices where high reliability is crucial.
Q & A
- What is the maximum non-repetitive peak reverse voltage of the 1N4148WS diode?
The maximum non-repetitive peak reverse voltage is 100 V.
- What is the continuous forward current rating of the 1N4148WS diode?
The continuous forward current rating is 150 mA.
- What is the thermal resistance, junction-to-ambient, of the 1N4148WS diode?
The thermal resistance, junction-to-ambient, is 625 °C/W.
- Is the 1N4148WS diode RoHS compliant?
Yes, the 1N4148WS diode is totally lead-free and fully RoHS compliant.
- What is the reverse recovery time of the 1N4148WS diode?
The reverse recovery time is 4 ns.
- What is the junction capacitance of the 1N4148WS diode at VR = 0 and f = 1 MHz?
The junction capacitance is 2 pF.
- What is the operating junction temperature range of the 1N4148WS diode?
The operating junction temperature range is -55 to +150 °C.
- Is the 1N4148WS diode suitable for automotive applications?
Yes, specific versions of the 1N4148WS are AEC-Q101 qualified and suitable for automotive applications.
- What is the package type of the 1N4148WS diode?
The package type is SOD-323.
- What is the moisture sensitivity level of the 1N4148WS diode?
The moisture sensitivity level is 1 per J-STD-020.
