- Datasheet Download Datasheet
- Stock & Prices $ Price & Stock for SMP4339
- Part Number SMP4339
- Manufacturer InterFET
- Pin Count 3
- Part Category JFET (N-Channel)
- Package Category SOT23 (3-Pin)
- Footprint Name SOT23 (3-Pin) - SOT23 (TO-236AB)
- Released Date Jan 3, 2022
- Last Modified Date Jan 29, 2025 6:54 PM UTC
- Pinout / Pin List Click Here (Member Only)
SMP4339 Details
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Manufacturer Part Number:
SMP4339
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Part Life Cycle Code:
Contact Manufacturer
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ECCN Code:
EAR99
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Manufacturer:
InterFET Corporation
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Configuration:
SINGLE
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Drain-source On Resistance-Max:
1700 Ω
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FET Technology:
JUNCTION
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Feedback Cap-Max (Crss):
3 pF
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JEDEC-95 Code:
TO-236
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JESD-30 Code:
R-PDSO-G3
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Number of Elements:
1
SMP4339 Frequently Asked Questions (FAQs)
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A good PCB layout for the SMP4339 involves keeping the input and output traces as short as possible, using a solid ground plane, and placing bypass capacitors close to the device. It's also recommended to use a 4-layer PCB with a dedicated power plane and a dedicated ground plane.
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To ensure proper biasing, make sure to follow the recommended voltage and current settings outlined in the datasheet. Typically, this involves setting the VDD voltage to 5V, the VGG voltage to 0V, and the IDQ current to 10mA. Additionally, ensure that the input and output impedances are matched to the device's recommended values.
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The SMP4339 has a maximum power handling capability of 2W. Exceeding this limit can cause the device to overheat, leading to reduced performance or even damage. Make sure to design your circuit to operate within this power limit to ensure reliable operation.
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To troubleshoot common issues with the SMP4339, start by checking the PCB layout and ensuring that it meets the recommended layout guidelines. Next, verify that the device is properly biased and that the input and output impedances are matched. If the issue persists, try reducing the gain of the device or adding additional stabilization components, such as resistors or capacitors, to the circuit.
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The SMP4339 is a general-purpose device and may not be suitable for high-reliability or high-temperature applications. For such applications, consider using a more specialized device that is specifically designed for high-reliability or high-temperature operation. Consult the datasheet and manufacturer's recommendations to determine the device's suitability for your specific application.
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SMP4339 Overview
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