Overview
The 1N4148 BK is a high-speed switching diode manufactured by Central Semiconductor Corp. It is housed in a DO-35 hermetically sealed glass case, making it suitable for a variety of electronic applications. This diode is a drop-in replacement for the 1N914 and is known for its fast switching capabilities and reliability. However, it is important to note that the 1N4148 BK has been discontinued and is now classified as End of Life (EOL), with Central Semiconductor recommending equivalent devices in surface mount packages as replacements.
Key Specifications
| Specification | Value | Units |
|---|---|---|
| Peak Repetitive Reverse Voltage (Vrrm) | 100 | V |
| Peak Working Reverse Voltage (Vrwm) | 75 | V |
| Average Forward Current (Io) | 150 | mA |
| DC Forward Current (If) | 200 | mA |
| Peak Forward Surge Current (Ifsm) | 2.0 | A |
| Power Dissipation (Pd) | 500 | mW |
| Forward Voltage (Vf) @ 10mA | 1.0 | V |
| Reverse Recovery Time (trr) | 4.0 | ns |
| Operating and Storage Junction Temperature | -65 to +200 | °C |
| Package / Case | DO-35 | |
| Mounting Type | Through Hole |
Key Features
- High-Speed Switching: The 1N4148 BK is designed for high-speed switching applications, making it ideal for circuits that require fast response times.
- Reliability: Housed in a hermetically sealed glass case, this diode offers high reliability and durability.
- Low Forward Voltage: With a forward voltage of 1.0V at 10mA, it minimizes power loss in forward bias conditions.
- Fast Reverse Recovery Time: The diode has a reverse recovery time of 4.0ns, which is crucial for high-frequency applications.
- Compact Package: The DO-35 package is compact and suitable for a wide range of electronic designs.
Applications
- Switching Circuits: Ideal for use in switching circuits due to its fast switching capabilities.
- Signal Processing: Suitable for signal processing applications where fast response times are critical.
- Rectifier Circuits: Can be used in rectifier circuits where low forward voltage drop is beneficial.
- Automotive Electronics: Although not automotive qualified, it can be used in various automotive electronic systems where high reliability is needed.
- General Purpose Electronics: Used in a variety of general-purpose electronic devices requiring reliable and fast switching diodes.
Q & A
- What is the peak repetitive reverse voltage of the 1N4148 BK?
The peak repetitive reverse voltage (Vrrm) of the 1N4148 BK is 100V.
- What is the average forward current rating of the 1N4148 BK?
The average forward current (Io) of the 1N4148 BK is 150mA.
- What is the forward voltage drop at 10mA for the 1N4148 BK?
The forward voltage (Vf) at 10mA is 1.0V.
- What is the reverse recovery time of the 1N4148 BK?
The reverse recovery time (trr) of the 1N4148 BK is 4.0ns.
- Is the 1N4148 BK still in production?
No, the 1N4148 BK has been discontinued and is classified as End of Life (EOL).
- What are the recommended replacements for the 1N4148 BK?
Central Semiconductor recommends using equivalent devices in surface mount packages as replacements.
- What is the operating temperature range for the 1N4148 BK?
The operating and storage junction temperature range is -65°C to +200°C.
- What is the package type of the 1N4148 BK?
The 1N4148 BK is housed in a DO-35 hermetically sealed glass case.
- What is the peak forward surge current rating of the 1N4148 BK?
The peak forward surge current (Ifsm) rating is 2.0A.
- What are some common applications for the 1N4148 BK?
Common applications include switching circuits, signal processing, rectifier circuits, and general-purpose electronics.
