Overview
The 1N4148W-E3-18 is a small signal fast switching diode produced by Vishay General Semiconductor - Diodes Division. This silicon epitaxial planar diode is designed for high-speed switching applications and is known for its fast recovery time and low forward voltage. It is widely used in various electronic circuits for rectification, polarity protection, and signal switching.
Key Specifications
| Parameter | Symbol | Value | Unit |
|---|---|---|---|
| Reverse Voltage | VR | 75 | V |
| Repetitive Peak Reverse Voltage | VRRM | 100 | V |
| Average Rectified Current | IF(AV) | 150 | mA |
| Surge Forward Current (tp < 1 s) | IFSM | 500 | mA |
| Surge Forward Current (tp = 1 μs) | IFSM | 2 | A |
| Power Dissipation | Ptot | 350 | mW |
| Forward Voltage (IF = 10 mA) | VF | 1 | V |
| Forward Voltage (IF = 100 mA) | VF | 1.2 | V |
| Reverse Recovery Time | trr | 4 | ns |
| Junction Temperature | Tj | -55 to +150 | °C |
| Storage Temperature Range | Tstg | -65 to +150 | °C |
| Thermal Resistance Junction to Ambient Air | RthJA | 357 | K/W |
Key Features
- Fast Switching: The 1N4148W-E3-18 has a fast recovery time of less than 4 ns, making it ideal for high-speed switching applications.
- Low Forward Voltage: It has a forward voltage of 1 V at 10 mA and 1.2 V at 100 mA, which is beneficial for reducing power losses.
- AEC-Q101 Qualified: Available in AEC-Q101 qualified versions, making it suitable for automotive applications.
- RoHS Compliant: The diode is RoHS compliant, ensuring environmental sustainability.
- High Surge Current Capability: It can handle surge forward currents up to 2 A for short durations.
- UL 94 V-0 Flammability Rating: The molding compound meets the UL 94 V-0 flammability rating, ensuring safety in various applications.
Applications
- Rectification and Polarity Protection: Used in various electronic circuits for rectification and polarity protection.
- Signal Switching: Ideal for signal switching applications due to its fast recovery time.
- Automotive Systems: Suitable for automotive systems, including power conversion for LED headlights, dashboard displays, and electronic control units (ECUs).
- Consumer Electronics: Used in consumer electronics, lighting, telecommunications equipment, and computers.
Q & A
- What is the maximum reverse voltage of the 1N4148W-E3-18 diode?
The maximum reverse voltage (VR) is 75 V, and the repetitive peak reverse voltage (VRRM) is 100 V.
- What is the average rectified current rating of this diode?
The average rectified current (IF(AV)) is 150 mA.
- What is the surge forward current capability of the 1N4148W-E3-18?
The diode can handle a surge forward current of up to 500 mA for durations less than 1 second and up to 2 A for durations of 1 μs.
- What is the forward voltage of the 1N4148W-E3-18 at different current levels?
The forward voltage (VF) is 1 V at 10 mA and 1.2 V at 100 mA.
- What is the reverse recovery time of this diode?
The reverse recovery time (trr) is less than 4 ns.
- Is the 1N4148W-E3-18 AEC-Q101 qualified?
Yes, it is available in AEC-Q101 qualified versions, making it suitable for automotive applications.
- What is the operating temperature range of the 1N4148W-E3-18?
The operating temperature range is from -55°C to +150°C.
- What is the thermal resistance junction to ambient air of this diode?
The thermal resistance junction to ambient air (RthJA) is approximately 357 K/W.
- Is the 1N4148W-E3-18 RoHS compliant?
Yes, the diode is RoHS compliant.
- What is the package type of the 1N4148W-E3-18?
The diode is packaged in a SOD-123 surface mount package.
