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概述
Description
The 2N7002CK is a small-signal N-channel MOSFET designed for low-voltage, low-current applications. Key features include:
- Voltage Rating: 60V drain-source (VDS).
- Current Handling: 115mA continuous drain current (ID).
- Low Threshold: 0.8V (typical) gate-source voltage (VGS(th)), making it suitable for 3.3V/5V logic.
- Package: SOT-23 (compact surface-mount).
Applications:
- Signal switching, load switching, and level shifting in digital circuits.
- Used in portable electronics, Arduino/RPi projects, and low-power systems.
Advantages:
- Low cost, small size, and easy integration.
- Fast switching with low gate charge.
Limitations:
- Not for high-power applications due to low current/voltage ratings.
For basic switching tasks, the 2N7002CK is a reliable, widely available MOSFET. Always check the datasheet for exact specifications.
- Voltage Rating: 60V drain-source (VDS).
- Current Handling: 115mA continuous drain current (ID).
- Low Threshold: 0.8V (typical) gate-source voltage (VGS(th)), making it suitable for 3.3V/5V logic.
- Package: SOT-23 (compact surface-mount).
Applications:
- Signal switching, load switching, and level shifting in digital circuits.
- Used in portable electronics, Arduino/RPi projects, and low-power systems.
Advantages:
- Low cost, small size, and easy integration.
- Fast switching with low gate charge.
Limitations:
- Not for high-power applications due to low current/voltage ratings.
For basic switching tasks, the 2N7002CK is a reliable, widely available MOSFET. Always check the datasheet for exact specifications.
Equivalent
Equivalent products to the 2N7002CK (N-channel MOSFET) include:
- BSS138 (lower current but similar specs)
- DMN2004DWK (dual MOSFET in same package)
- NDS7002A (close match in SOT-23)
- SI2302 (similar characteristics)
Check datasheets for exact voltage/current ratings. All are SMD alternatives.
- BSS138 (lower current but similar specs)
- DMN2004DWK (dual MOSFET in same package)
- NDS7002A (close match in SOT-23)
- SI2302 (similar characteristics)
Check datasheets for exact voltage/current ratings. All are SMD alternatives.
Manufacturer
The 2N7002CK is a N-channel MOSFET manufactured by ON Semiconductor (now part of onsemi after rebranding in 2021).
ON Semiconductor (onsemi) is a global semiconductor company specializing in power management, analog, and sensor solutions. It serves industries like automotive, industrial, and consumer electronics, known for energy-efficient and reliable components.
The 2N7002CK is a small-signal MOSFET commonly used in switching and amplification applications.
ON Semiconductor (onsemi) is a global semiconductor company specializing in power management, analog, and sensor solutions. It serves industries like automotive, industrial, and consumer electronics, known for energy-efficient and reliable components.
The 2N7002CK is a small-signal MOSFET commonly used in switching and amplification applications.
Application
The 2N7002CK is a small-signal N-channel MOSFET commonly used in:
1. Switching Circuits – Low-power load switching in digital/logic circuits.
2. Signal Amplification – Small-signal amplification in audio/RF applications.
3. Protection Circuits – Reverse polarity/ESD protection.
4. Logic Level Conversion – Shifting signals between different voltage levels (e.g., 3.3V ↔ 5V).
5. Automotive & Consumer Electronics – Used in sensors, relays, and power management.
Its low threshold voltage (~1V) and compact SOT-23 package make it ideal for space-constrained, low-power designs.
1. Switching Circuits – Low-power load switching in digital/logic circuits.
2. Signal Amplification – Small-signal amplification in audio/RF applications.
3. Protection Circuits – Reverse polarity/ESD protection.
4. Logic Level Conversion – Shifting signals between different voltage levels (e.g., 3.3V ↔ 5V).
5. Automotive & Consumer Electronics – Used in sensors, relays, and power management.
Its low threshold voltage (~1V) and compact SOT-23 package make it ideal for space-constrained, low-power designs.
Package
The 2N7002CK is typically available in SOT-23 (Small Outline Transistor) package, a compact surface-mount type with 3 pins. It’s widely used for low-power applications due to its small size and efficiency. Some variants may also come in TO-92 (through-hole) packaging, but SOT-23 is more common for this MOSFET. Always check the datasheet for exact specifications.
