The BSS138W-7-F is a small signal N-channel MOSFET designed for general-purpose switching and amplification applications. Manufactured by ON Semiconductor, it comes in a SOT-323 surface-mount package. Below is an overview of its features and common applications:
Overview:
- Type: N-channel MOSFET
- Package: SOT-323
- Manufacturer: ON Semiconductor
Features:
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Enhancement Mode: The BSS138W-7-F operates in the enhancement mode, meaning it requires a positive voltage at the gate with respect to the source to allow current flow between the drain and source terminals.
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Low Threshold Voltage: With a low threshold voltage, it can be easily switched on with low gate-to-source voltage, making it suitable for low-power applications.
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Small Package: The SOT-323 package allows for compact surface-mount assemblies, making it ideal for small and portable electronic devices.
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Low Input and Output Capacitance: This feature allows for efficient integration into high-frequency applications and minimizes the capacitive loading of driving circuits.
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High Speed Switching: The MOSFET features fast switching characteristics, making it suitable for high-speed applications.
Applications:
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Signal Switching: The BSS138W-7-F is commonly used for signal switching applications in various electronics, particularly in low-power and portable devices where space and power efficiency are crucial.
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Level Shifting: Due to its low threshold voltage, it is suitable for level-shifting applications, facilitating interfacing between different voltage domains.
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Load Switching: It is used as a switch to control power supply to various sub-circuits, especially in battery-operated and portable devices, aiding in efficient power management.
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Signal Amplification: In low-power and moderate-frequency applications, the BSS138W-7-F can be used for signal amplification, leveraging its MOSFET properties.
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Oscillator Circuits: The MOSFET can be utilized in oscillator and waveform generation circuits, particularly in low-power or small-scale integrated systems.
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Voltage Regulation: In low-power applications, it can be employed in voltage regulator circuits, especially where low threshold voltage and small form factor are advantageous.
The BSS138W-7-F MOSFET is widely used in various digital and analog circuits, especially in portable devices, and applications where space and power efficiency are critical.
