Overview
The BFG540,215 is a high-performance RF NPN bipolar transistor manufactured by NXP USA Inc. This transistor is designed for wideband applications, particularly in the radio frequency (RF) domain. It is known for its high frequency transition and low noise figure, making it suitable for various RF and microwave applications. Despite being marked as obsolete, it remains a significant component in legacy systems and specific niche applications.
Key Specifications
| Parameter | Value |
|---|---|
| Voltage - Collector Emitter Breakdown (Max) | 15V |
| Noise Figure (dB Typ @ f) | 1.3dB ~ 1.8dB @ 900MHz |
| Operating Temperature | 150°C (TJ) |
| Package / Case | SOT-143B, TO-253-4, TO-253AA |
| Transistor Type | NPN |
| Frequency - Transition | 9GHz |
| DC Current Gain (hFE) (Min) @ Ic, Vce | 60 @ 40mA, 8V |
| Current - Collector (Ic) (Max) | 120mA |
| Power - Max | 400mW |
| Mounting Type | Surface Mount |
| RoHS Status | Lead free, RoHS compliant |
Key Features
- High frequency transition of 9GHz, making it suitable for wideband RF applications.
- Low noise figure of 1.3dB ~ 1.8dB at 900MHz, enhancing signal quality.
- Maximum collector-emitter breakdown voltage of 15V.
- Maximum collector current of 120mA and maximum power dissipation of 400mW.
- Surface mount package (SOT-143B) with a compact size, ideal for modern RF circuits.
- Compliant with RoHS and lead-free, ensuring environmental sustainability.
Applications
- RF amplifiers and oscillators in wireless communication systems.
- Microwave and RF circuits requiring high frequency and low noise performance.
- Legacy systems and maintenance of existing RF equipment.
- Research and development in RF and microwave engineering.
Q & A
- What is the maximum collector-emitter breakdown voltage of the BFG540,215?
The maximum collector-emitter breakdown voltage is 15V.
- What is the noise figure of the BFG540,215 at 900MHz?
The noise figure is 1.3dB ~ 1.8dB at 900MHz.
- What is the maximum operating temperature of the BFG540,215?
The maximum operating temperature is 150°C (TJ).
- What is the package type of the BFG540,215?
The package type is SOT-143B, with options for TO-253-4 and TO-253AA.
- Is the BFG540,215 RoHS compliant?
Yes, the BFG540,215 is lead-free and RoHS compliant.
- What is the maximum collector current of the BFG540,215?
The maximum collector current is 120mA.
- What is the maximum power dissipation of the BFG540,215?
The maximum power dissipation is 400mW.
- What is the frequency transition of the BFG540,215?
The frequency transition is 9GHz.
- What is the DC current gain (hFE) of the BFG540,215?
The DC current gain (hFE) is 60 at 40mA and 8V.
- Is the BFG540,215 still in production?
No, the BFG540,215 is marked as obsolete.
