Overview
The BLF245B,112 is a silicon N-channel enhancement mode vertical D-MOS transistor designed by Ampleon USA Inc. for large signal amplifier applications, particularly in the VHF frequency range. This transistor is encapsulated in a 4-lead SOT123A flange package with a ceramic cap, ensuring all leads are isolated from the flange. Although the BLF245 model has been discontinued, the BLF245B,112 remains a significant component in RF power applications.
Key Specifications
| Symbol | Parameter | Conditions | Min | Max | Unit | |
|---|---|---|---|---|---|---|
| f range | frequency range | 25 | 175 | MHz | ||
| P L(1dB) | nominal output power at 1 dB gain compression | Test signal: CW | 30 | W | ||
| G p | power gain | P L = 30 W; V DS = 28 V | 13 | 15.5 | dB | |
| η D | drain efficiency | P L = 30 W; V DS = 28 V; f = 175 MHz; I Dq = 50 mA | 50 | 67 | % | |
| P L | output power | 30 | W |
Key Features
- High power gain
- Low noise figure
- Easy power control
- Good thermal stability
- Withstands full load mismatch
Applications
The BLF245B,112 is designed for large signal amplifier applications in the VHF frequency range. It is particularly suited for use in radio frequency (RF) power amplifiers, broadcast, navigation, and safety radio applications.
Q & A
- What is the BLF245B,112?
The BLF245B,112 is a silicon N-channel enhancement mode vertical D-MOS transistor designed for large signal amplifier applications in the VHF frequency range. - What package type does the BLF245B,112 use?
The transistor is encapsulated in a 4-lead SOT123A flange package. - What is the nominal output power of the BLF245B,112 at 1 dB gain compression?
The nominal output power at 1 dB gain compression is 30 W. - What is the power gain of the BLF245B,112?
The power gain is typically 15.5 dB under specified conditions. - What is the drain efficiency of the BLF245B,112?
The drain efficiency is typically 67% under specified conditions. - Is the BLF245 model still available?
No, the BLF245 model has been discontinued, but the BLF245B,112 remains available. - What are the key applications of the BLF245B,112?
The key applications include large signal amplifier applications in the VHF frequency range, such as in RF power amplifiers, broadcast, navigation, and safety radio applications. - What are the benefits of using the BLF245B,112?
The benefits include high power gain, low noise figure, easy power control, good thermal stability, and the ability to withstand full load mismatch. - What is the frequency range of the BLF245B,112?
The frequency range is from 25 MHz to 175 MHz. - How is the thermal stability of the BLF245B,112?
The transistor has good thermal stability.
