Overview
The MMBF5485_NB50012, produced by onsemi, is an N-Channel RF Amplifier designed primarily for electronic switching applications, particularly those requiring low On Resistance analog switching. This device is sourced from Process 50 and is available in the SOT-23 package. It is part of the MMBF5484, MMBF5485, and MMBF5486 series, which are known for their versatility in various electronic switching and amplification roles.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Drain-Gate Voltage | VDG | - | - | 25 | V |
| Gate-Source Voltage | VGS | - | - | -25 | V |
| Forward Gate Current | IGF | - | - | 10 | mA |
| Operating and Storage Junction Temperature Range | TJ, Tstg | -55 | - | 150 | °C |
| Gate-Source Breakdown Voltage | V(BR)GSS | -25 | - | - | V |
| Gate-Source Cutoff Voltage | VGS(off) | -0.5 | - | -4.0 | V |
| Zero-Gate Voltage Drain Current | IDSS | 4.0 | - | 10 | mA |
| Forward Transfer Conductance | gfs | 3500 | - | 7000 | µmhos |
| Input Capacitance | Ciss | - | - | 5.0 | pF |
| Output Capacitance | Coss | - | - | 2.0 | pF |
| Noise Figure at 100 MHz | NF | - | - | 2.0 | dB |
Key Features
- Low On Resistance: Ideal for analog switching applications.
- High Forward Transfer Conductance: Up to 7000 µmhos, ensuring efficient signal amplification.
- Wide Operating Temperature Range: From -55°C to 150°C, making it suitable for various environmental conditions.
- Low Noise Figure: As low as 2.0 dB at 100 MHz, which is beneficial for RF amplification.
- Interchangeable Source and Drain: Provides flexibility in circuit design.
- Compact SOT-23 Package: Suitable for space-constrained applications.
Applications
- Electronic Switching: Low On Resistance makes it ideal for analog switching applications.
- RF Amplification: Used in RF circuits due to its high forward transfer conductance and low noise figure.
- Audio Amplifiers: Suitable for audio amplification due to its low noise and high gain characteristics.
- General Purpose Amplifiers: Can be used in various general-purpose amplification roles.
Q & A
- What is the primary application of the MMBF5485_NB50012?
The primary application is electronic switching, particularly low On Resistance analog switching.
- What is the maximum drain-gate voltage for the MMBF5485_NB50012?
The maximum drain-gate voltage is 25 V.
- What is the operating temperature range for this device?
The operating temperature range is from -55°C to 150°C.
- What is the typical forward transfer conductance of the MMBF5485_NB50012?
The typical forward transfer conductance is 3500 µmhos.
- Is the source and drain interchangeable in the MMBF5485_NB50012?
Yes, the source and drain are interchangeable.
- What is the noise figure at 100 MHz for the MMBF5485_NB50012?
The noise figure at 100 MHz is typically 2.0 dB.
- What package type is the MMBF5485_NB50012 available in?
The device is available in the SOT-23 package.
- Can the MMBF5485_NB50012 be used in audio amplifiers?
Yes, it is suitable for audio amplification due to its low noise and high gain characteristics.
- What are the thermal resistance values for the MMBF5485_NB50012?
The thermal resistance from junction to case (RθJC) is 125 °C/W, and from junction to ambient (RθJA) is 357 °C/W.
- Are there any specific precautions for using the MMBF5485_NB50012 in pulsed or low duty cycle operations?
Yes, the factory should be consulted for applications involving pulsed or low duty cycle operations.
