規格
| 屬性 | 價值 |
| Supplier | onsemi |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Active |
| FET Type | N-Channel |
| Voltage - Breakdown(V(BR)GSS) | 25 V |
| Current - Drain(Idss) @ Vds(Vgs=0) | 80 mA @ 15 V |
| Voltage - Cutoff(VG Soff) @ Id | 3 V @ 10 nA |
| Rds On | 8 Ohms |
| Power - Max | 350 mW |
| Operating Temperature | -55°C ~ 150°C (TJ) |
| Mounting Type | Surface Mount |
概述
Description
The MMBFJ108 is an N-channel JFET (Junction Field-Effect Transistor) known for its low noise and high gain characteristics. It is commonly used in audio and RF amplifier applications due to its excellent signal amplification capabilities. The device operates with a gate-source voltage that controls the current flow between the drain and the source, making it suitable for amplification and switching purposes.
Key features include its low input capacitance, high input impedance, and low power consumption. The MMBFJ108 typically comes in a small SOT-23 package, making it suitable for compact circuit designs. Its electrical characteristics include a drain-source voltage rating, gate-source cutoff voltage, and a specified range of drain-source current, which makes it versatile for various electronic applications.
When designing circuits with the MMBFJ108, it's essential to consider parameters like cutoff frequency, voltage handling capacities, and thermal management to ensure optimal performance and reliability. It is widely used in applications ranging from analog signal processing to frequency modulation systems.
Key features include its low input capacitance, high input impedance, and low power consumption. The MMBFJ108 typically comes in a small SOT-23 package, making it suitable for compact circuit designs. Its electrical characteristics include a drain-source voltage rating, gate-source cutoff voltage, and a specified range of drain-source current, which makes it versatile for various electronic applications.
When designing circuits with the MMBFJ108, it's essential to consider parameters like cutoff frequency, voltage handling capacities, and thermal management to ensure optimal performance and reliability. It is widely used in applications ranging from analog signal processing to frequency modulation systems.
Equivalent
The MMBFJ108 is a JFET transistor. Equivalent products include:
1. J108 - A similar JFET transistor with comparable specifications.
2. MMBFJ112 - Another JFET which can often be used as a substitute in some circuits.
3. 2N5484 or 2N5485 - These are also JFETs that may serve as alternatives, depending on the specific circuit requirements.
Always check the datasheets to ensure compatibility in your application.
1. J108 - A similar JFET transistor with comparable specifications.
2. MMBFJ112 - Another JFET which can often be used as a substitute in some circuits.
3. 2N5484 or 2N5485 - These are also JFETs that may serve as alternatives, depending on the specific circuit requirements.
Always check the datasheets to ensure compatibility in your application.
Features
The MMBFJ108 is a N-channel JFET (Junction Field-Effect Transistor) commonly used for switching and amplification purposes in electronic circuits. Here are its key features:
1. N-Channel JFET: The MMBFJ108 operates as an N-channel device, meaning it controls electron flow from source to drain.
2. Low On-Resistance: It typically offers low on-resistance, which makes it efficient for current flow with minimal voltage drop.
3. High Input Impedance: This characteristic allows it to be used in circuits where minimal loading of preceding stages is necessary.
4. Gate-Source Voltage (Vgs): The transistor is controlled through the gate, with specific voltage levels needed to switch it on or off.
5. Low Noise: Suitable for applications requiring minimal noise interference, such as audio amplification.
6. Small Package: Often comes in a small, surface-mount package, making it ideal for compact circuit designs.
7. Common Applications: Used in analog switches, amplifiers, and signal processing circuits.
Overall, the MMBFJ108’s features make it suitable for high-performance, low-noise applications requiring small form factor components.
1. N-Channel JFET: The MMBFJ108 operates as an N-channel device, meaning it controls electron flow from source to drain.
2. Low On-Resistance: It typically offers low on-resistance, which makes it efficient for current flow with minimal voltage drop.
3. High Input Impedance: This characteristic allows it to be used in circuits where minimal loading of preceding stages is necessary.
4. Gate-Source Voltage (Vgs): The transistor is controlled through the gate, with specific voltage levels needed to switch it on or off.
5. Low Noise: Suitable for applications requiring minimal noise interference, such as audio amplification.
6. Small Package: Often comes in a small, surface-mount package, making it ideal for compact circuit designs.
7. Common Applications: Used in analog switches, amplifiers, and signal processing circuits.
Overall, the MMBFJ108’s features make it suitable for high-performance, low-noise applications requiring small form factor components.
Pinout
The MMBFJ108 is a JFET (Junction Field Effect Transistor) used for general-purpose amplification and switching. It typically comes in a SOT-23 package, which is a small-outline transistor package commonly used in surface-mount devices. The SOT-23 package for the MMBFJ108 has three pins:
1. Gate (G): This pin controls the current flow between the drain and source, effectively turning the transistor on or off.
2. Source (S): This is the terminal through which the carriers enter the channel. In an n-channel JFET like the MMBFJ108, the source is typically connected to a negative voltage or ground.
3. Drain (D): This is the terminal through which the carriers leave the channel. The current flows from the drain to the source when the JFET is on.
The SOT-23 package is advantageous for its compact size, allowing it to be used in densely populated circuit boards.
1. Gate (G): This pin controls the current flow between the drain and source, effectively turning the transistor on or off.
2. Source (S): This is the terminal through which the carriers enter the channel. In an n-channel JFET like the MMBFJ108, the source is typically connected to a negative voltage or ground.
3. Drain (D): This is the terminal through which the carriers leave the channel. The current flows from the drain to the source when the JFET is on.
The SOT-23 package is advantageous for its compact size, allowing it to be used in densely populated circuit boards.
Manufacturer
The MMBFJ108 is manufactured by ON Semiconductor. ON Semiconductor, now known as onsemi, is a multinational company that specializes in designing, manufacturing, and marketing a broad portfolio of semiconductor components. These components are crucial for various applications in automotive, industrial, cloud power, and IoT sectors. Onsemi is known for its focus on energy-efficient solutions, which support advanced electronics and sustainable energy initiatives.
Application
The MMBFJ108 is a dual N-channel JFET transistor, commonly used in low-power electronic applications. Its primary application areas include amplification and switching in RF circuits, audio frequency amplifiers, and low-noise amplifiers due to its high input impedance and low noise characteristics. Additionally, it is used in sensor circuits and impedance buffering. The JFET's small package size makes it suitable for compact and portable devices. It is also employed in analog signal processing tasks where precision and low power consumption are crucial.
Package
The MMBFJ108 is a JFET transistor, and it typically comes in a SOT-23 package type, which is a small outline transistor package commonly used for surface-mount devices. This package is designed to be compact and suitable for applications with space constraints.
