Overview
The 1N4448/TR is a small signal switching diode, widely used in various electronic circuits for switching and rectification purposes. Although it is not exclusively produced by Microchip Technology, it is available from several prominent semiconductor manufacturers such as ON Semiconductor, Vishay, and Fairchild Semiconductor. This diode is known for its high speed and low forward voltage drop, making it suitable for a range of applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Repetitive Reverse Voltage (Vrrm) | 100 | V |
| Forward Current (If(AV)) | 150-200 | mA |
| Forward Voltage (VF) | 1 | V |
| Reverse Recovery Time (trr) | 4-8 | ns |
| Forward Surge Current (Ifsm) | 2 | A |
| Package | DO-35 | |
| Number of Pins | 2 | |
| RoHS Compliance | Yes/No (varies by manufacturer) |
Key Features
- High speed switching capability with low reverse recovery time.
- Low forward voltage drop, reducing power losses in the circuit.
- Compact DO-35 package suitable for a variety of applications.
- High repetitive reverse voltage rating for reliability in harsh environments.
- Adequate forward current handling for general-purpose switching and rectification.
Applications
- General-purpose switching circuits.
- Rectifier circuits in power supplies.
- Automotive electronics due to its robust specifications.
- High-frequency applications requiring fast switching times.
- Consumer electronics and industrial control systems.
Q & A
- What is the repetitive reverse voltage rating of the 1N4448/TR diode?
The repetitive reverse voltage rating is 100V.
- What is the forward current rating of the 1N4448/TR diode?
The forward current rating is typically between 150mA to 200mA, depending on the manufacturer.
- What is the forward voltage drop of the 1N4448/TR diode?
The forward voltage drop is approximately 1V.
- What is the reverse recovery time of the 1N4448/TR diode?
The reverse recovery time is between 4ns to 8ns, depending on the manufacturer.
- What package type is the 1N4448/TR diode available in?
The diode is available in the DO-35 package.
- Is the 1N4448/TR diode RoHS compliant?
Rohs compliance varies by manufacturer; some versions are RoHS compliant while others are not.
- What are some common applications of the 1N4448/TR diode?
Common applications include general-purpose switching circuits, rectifier circuits, automotive electronics, high-frequency applications, and consumer electronics.
- Why is the 1N4448/TR diode preferred in high-frequency applications?
The diode is preferred due to its low reverse recovery time and high speed switching capability.
- Can the 1N4448/TR diode be used in automotive applications?
Yes, it can be used in automotive applications due to its robust specifications and reliability in harsh environments.
- What is the typical number of pins for the 1N4448/TR diode?
The diode has 2 pins.
