Overview
The 1N4148UB/TR is a small signal fast switching diode produced by Microchip Technology. This diode is known for its fast switching speeds and low capacitance, making it suitable for a variety of high-frequency applications. It is available in the DO-35 (DO-204AH) package and is electrically equivalent to the 1N914 diode. The 1N4148UB/TR is widely used in electronic circuits that require quick and efficient switching capabilities.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Repetitive Peak Reverse Voltage (VRRM) | 100 | V |
| Reverse Voltage (VR) | 75 | V |
| Peak Forward Surge Current (IFSM) | 2 | A |
| Repetitive Peak Forward Current (IFRM) | 500 | mA |
| Forward Continuous Current (IF) | 300 | mA |
| Average Forward Current (IF(AV)) | 150 | mA |
| Power Dissipation (Ptot) at TL = 45°C | 440 | mW |
| Power Dissipation (Ptot) at TL ≤ 25°C | 500 | 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) at IF = 10 mA | 1 | V |
| Reverse Current (IR) at VR = 20 V | 25 | nA |
| Reverse Recovery Time (trr) | 4-8 | ns |
| Diode Capacitance (CD) at VR = 0 V, f = 1 MHz | 4 | pF |
Key Features
- Silicon epitaxial planar diode
- Fast switching speeds with reverse recovery times as low as 4-8 ns
- Low capacitance of 4 pF at VR = 0 V, f = 1 MHz
- High repetitive peak reverse voltage of 100 V and reverse voltage of 75 V
- Forward continuous current of 300 mA and average forward current of 150 mA
- RoHS compliant in various packaging options
- Available in DO-35 (DO-204AH) package
Applications
- Extreme fast switching applications
- High-frequency circuits
- General-purpose switching and rectification
- Automotive and industrial control systems
- Consumer electronics requiring fast and efficient diode performance
Q & A
- What is the repetitive peak reverse voltage of the 1N4148UB/TR diode?
The repetitive peak reverse voltage (VRRM) is 100 V. - What is the forward continuous current rating of this diode?
The forward continuous current (IF) is 300 mA. - What is the typical forward voltage drop at 10 mA?
The typical forward voltage drop (VF) at 10 mA is 1 V. - What is the reverse recovery time of the 1N4148UB/TR diode?
The reverse recovery time (trr) ranges from 4 to 8 ns. - Is the 1N4148UB/TR diode RoHS compliant?
Yes, the 1N4148UB/TR diode is available in RoHS compliant packaging options. - What is the junction temperature rating of this diode?
The junction temperature (Tj) rating is 175°C. - What is the storage temperature range for the 1N4148UB/TR diode?
The storage temperature range (Tstg) is -65 to +150°C. - What is the typical capacitance of the 1N4148UB/TR diode?
The typical capacitance (CD) at VR = 0 V, f = 1 MHz is 4 pF. - In what package is the 1N4148UB/TR diode available?
The 1N4148UB/TR diode is available in the DO-35 (DO-204AH) package. - What are some common applications of the 1N4148UB/TR diode?
Common applications include extreme fast switching, high-frequency circuits, general-purpose switching, and rectification in automotive, industrial, and consumer electronics.
