Overview
The 1N4148UB2R is a small signal fast switching diode produced by Microchip Technology. This diode is known for its low capacitance and very fast switching speeds, making it suitable for a variety of high-frequency applications. It is part of the 1N4148 family, which is electrically equivalent to the 1N914 diode. The 1N4148UB2R is packaged in a surface mount UB2 package, offering convenience and efficiency in modern electronic designs.
Key Specifications
| Parameter | Symbol | Value | Unit |
|---|---|---|---|
| Repetitive Peak Reverse Voltage | VRRM | 100 | V |
| Peak Forward Surge Current | IFSM | 2 | A |
| Forward Continuous Current | IF | 300 | mA |
| Average Forward Current | IF(AV) | 150 | mA |
| Power Dissipation | Ptot | 440 (l = 4 mm, TL = 45 °C), 500 (l = 4 mm, TL ≤ 25 °C) | mW |
| Thermal Resistance Junction to Ambient Air | RthJA | 350 | K/W |
| Junction Temperature | Tj | 175 | °C |
| Storage Temperature Range | Tstg | -65 to +150 | °C |
| Forward Voltage | VF | 1 | V (at IF = 10 mA) |
| Reverse Recovery Time | trr | 4 ns (typical) | ns |
Key Features
- Fast Switching Speeds: The 1N4148UB2R diode features very fast switching speeds, making it ideal for high-frequency applications.
- Low Capacitance: This diode has low capacitance, which is beneficial for applications requiring minimal signal distortion.
- Surface Mount Package: The UB2 package is a surface mount type, facilitating easy integration into modern electronic designs.
- High Reliability: The diode is designed to operate reliably under various conditions, with a high junction temperature and robust thermal characteristics.
Applications
The 1N4148UB2R diode is suitable for a wide range of applications, including:
- High-Frequency Switching Circuits: Its fast switching speeds make it ideal for high-frequency switching applications.
- Signal Processing: The low capacitance and fast recovery time of the diode make it suitable for signal processing and filtering.
- Power Supplies: It can be used in power supply circuits where fast switching and low capacitance are required.
- Communication Systems: The diode is also used in communication systems where high-frequency signals need to be processed efficiently.
Q & A
- What is the repetitive peak reverse voltage of the 1N4148UB2R diode?
The repetitive peak reverse voltage (VRRM) is 100 V. - What is the peak forward surge current of the 1N4148UB2R diode?
The peak forward surge current (IFSM) is 2 A. - What is the forward continuous current rating of the 1N4148UB2R diode?
The forward continuous current (IF) is 300 mA. - What is the average forward current rating of the 1N4148UB2R diode?
The average forward current (IF(AV)) is 150 mA. - What is the typical forward voltage of the 1N4148UB2R diode?
The typical forward voltage (VF) at IF = 10 mA is 1 V. - What is the reverse recovery time of the 1N4148UB2R diode?
The reverse recovery time (trr) is typically 4 ns. - In what package is the 1N4148UB2R diode available?
The 1N4148UB2R diode is available in a surface mount UB2 package. - What are the key features of the 1N4148UB2R diode?
The key features include fast switching speeds, low capacitance, and a surface mount package. - What are some common applications of the 1N4148UB2R diode?
Common applications include high-frequency switching circuits, signal processing, power supplies, and communication systems. - What is the junction temperature rating of the 1N4148UB2R diode?
The junction temperature (Tj) rating is 175 °C.
