Overview
The MMBF5434 is a Junction Field-Effect Transistor (JFET) manufactured by onsemi, formerly known as Fairchild Semiconductor. Although this component is currently obsolete and no longer in production, it was widely used in various electronic circuits due to its robust performance characteristics. The MMBF5434 was known for its high input impedance, low noise, and high current handling capabilities, making it suitable for a range of applications including audio amplifiers, switching circuits, and voltage regulators.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| VDS (Drain-Source Voltage) | 40 | V |
| VGS (Gate-Source Voltage) | ±25 | V |
| ID (Drain Current) | 350 | mA |
| PD (Power Dissipation) | 360 | mW |
| RDS(on) (On-Resistance) | 10 | Ω |
| TJ (Junction Temperature) | -55 to 150 | °C |
Key Features
- High input impedance
- Low noise operation
- High current handling capability
- Compact TO-92 package
- Suitable for high-frequency applications
Applications
- Audio amplifiers and preamplifiers
- Switching circuits and logic gates
- Voltage regulators and power supplies
- High-frequency amplifiers and oscillators
- General-purpose amplification and switching
Q & A
- What is the MMBF5434? The MMBF5434 is a Junction Field-Effect Transistor (JFET) manufactured by onsemi.
- Is the MMBF5434 still in production? No, the MMBF5434 is obsolete and no longer manufactured.
- What are the key specifications of the MMBF5434? Key specifications include a drain-source voltage of 40V, gate-source voltage of ±25V, and a drain current of 350mA.
- What are the typical applications of the MMBF5434? Typical applications include audio amplifiers, switching circuits, voltage regulators, and high-frequency amplifiers.
- What is the package type of the MMBF5434? The MMBF5434 is available in a TO-92 package.
- What are the advantages of using the MMBF5434? Advantages include high input impedance, low noise operation, and high current handling capability.
- Can the MMBF5434 be used in high-frequency applications? Yes, the MMBF5434 is suitable for high-frequency applications due to its low noise and high current handling capabilities.
- Where can I find substitutes for the MMBF5434? Substitutes can be found through distributors like Digi-Key, Mouser, and other electronic component suppliers.
- What is the junction temperature range for the MMBF5434? The junction temperature range is -55°C to 150°C.
- Is the MMBF5434 suitable for power supply applications? Yes, it can be used in voltage regulators and power supply circuits due to its robust performance characteristics.
