Overview
The 1N4148UB2 is a high-performance switching/signal diode produced by Microchip Technology, formerly known as Microsemi Corporation. This diode is designed for applications requiring fast switching speeds and low capacitance. It is particularly suited for military-grade products, complying with MIL-PRF-19500/116 standards at various reliability levels including JAN, JANTX, and JANTXV. The 1N4148UB2 is available in a surface mount UB2 package, making it ideal for modern electronic designs where space and performance are critical.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Maximum Breakdown Voltage (VBR) | 100 | V |
| Working Peak Reverse Voltage (VRM) | 75 | V |
| Average Rectified Current (IO) at TA = 75°C | 200 | mA |
| Non-Repetitive Sinusoidal Surge Current (IFSM) | 2 | A (pk) |
| Thermal Resistance Junction-to-Ambient (RθJA) | 325 | °C/W |
| Thermal Resistance Junction-to-Solder Pad (RθJSP) | 120 | °C/W |
| Forward Voltage (VF) | Typically 1 V at 200 mA | V |
| Reverse Recovery Time (trr) | Typically 4 ns | ns |
Key Features
- Surface mount UB2 package for compact design.
- Low capacitance and very fast switching speeds.
- Ceramic body construction for military-grade reliability.
- Gold plating over nickel underplate for terminals.
- Available in different polarities and reliability levels (JAN, JANTX, JANTXV).
- Compliant with MIL-PRF-19500/116 standards.
Applications
The 1N4148UB2 diode is suitable for a variety of applications, including:
- Military and aerospace systems due to its high reliability and compliance with military standards.
- High-frequency switching circuits where low capacitance and fast recovery times are essential.
- Signal processing and communication systems requiring fast and reliable diodes.
- General-purpose switching and rectification in electronic circuits.
Q & A
- What is the maximum breakdown voltage of the 1N4148UB2 diode?
The maximum breakdown voltage is 100 V. - What is the working peak reverse voltage of the 1N4148UB2 diode?
The working peak reverse voltage is 75 V. - What is the average rectified current rating of the 1N4148UB2 diode at 75°C?
The average rectified current rating is 200 mA. - What is the thermal resistance junction-to-ambient of the 1N4148UB2 diode?
The thermal resistance junction-to-ambient is 325 °C/W. - Is the 1N4148UB2 diode compliant with any military standards?
Yes, it is compliant with MIL-PRF-19500/116 standards. - What package types are available for the 1N4148UB2 diode?
The diode is available in a surface mount UB2 package, among others. - What are the typical applications of the 1N4148UB2 diode?
It is used in military and aerospace systems, high-frequency switching circuits, signal processing, and general-purpose switching and rectification. - What is the reverse recovery time of the 1N4148UB2 diode?
The reverse recovery time is typically 4 ns. - What is the forward voltage of the 1N4148UB2 diode?
The forward voltage is typically 1 V at 200 mA. - Is the 1N4148UB2 diode available in different reliability levels?
Yes, it is available in JAN, JANTX, and JANTXV reliability levels.
