Overview
The BLF245-112 is a high-performance RF power transistor manufactured by Ampleon USA Inc. This silicon N-channel enhancement mode vertical D-MOS transistor is designed for large signal amplifier applications, particularly in the VHF frequency range and broader wireless infrastructure needs.
It is encapsulated in a 4-lead SOT123A flange package with a ceramic cap, ensuring all leads are isolated from the flange. This transistor is optimized for use in cellular base stations, wireless repeaters, and high-power, high-frequency amplifiers.
Key Specifications
| Symbol | Parameter | Conditions | Min | Typ/Nom | Max | Unit |
|---|---|---|---|---|---|---|
| f range | frequency range | 25°C | 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
- Broadband operation from 1.8 to 2.7 GHz
- High power gain and efficiency
- Rugged design for reliable operation
- Easy power control
- Good thermal stability
- Withstands full load mismatch
Applications
- Cellular base stations
- Wireless repeaters
- High-power, high-frequency amplifiers
- Large signal amplifier applications in the VHF frequency range
Q & A
- What is the BLF245-112 used for?
The BLF245-112 is used for large signal amplifier applications, particularly in cellular base stations, wireless repeaters, and high-power, high-frequency amplifiers.
- What is the frequency range of the BLF245-112?
The BLF245-112 operates in a frequency range from 1.8 to 2.7 GHz.
- What is the package type of the BLF245-112?
The BLF245-112 is packaged in a 4-lead SOT123A flange package with a ceramic cap.
- What are the key features of the BLF245-112?
The key features include broadband operation, high power gain and efficiency, rugged design, easy power control, good thermal stability, and the ability to withstand full load mismatch.
- Is the BLF245-112 still in production?
No, the BLF245 has been discontinued, but equivalent and alternative models such as the BLF245-120 and BLF245-140 are available.
- What is the typical power gain of the BLF245-112?
The typical power gain of the BLF245-112 is 15.5 dB.
- What is the nominal output power at 1 dB gain compression for the BLF245-112?
The nominal output power at 1 dB gain compression is 30 W.
- What is the drain efficiency of the BLF245-112?
The drain efficiency is typically 67% at specific conditions (P L = 30 W; V DS = 28 V; f = 175 MHz; I Dq = 50 mA).
- How does the BLF245-112 handle thermal stability?
The BLF245-112 has good thermal stability, ensuring reliable operation under various conditions.
- Where can I find the datasheet for the BLF245-112?
The datasheet for the BLF245-112 can be found on the Y-IC website or other authorized distributors' websites.
