- Datasheet Download Datasheet
- Stock & Prices $ Price & Stock for SMP4393
- Part Number SMP4393
- Manufacturer InterFET
- Pin Count 3
- Part Category JFET (N-Channel)
- Package Category SOT23 (3-Pin)
- Footprint Name SOT23 (3-Pin) - SOT-23-3-1
- Released Date Jan 3, 2022
- Last Modified Date Jan 29, 2025 6:54 PM UTC
- Pinout / Pin List Click Here (Member Only)
SMP4393 Details
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Manufacturer Part Number:
SMP4393
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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:
100 Ω
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FET Technology:
JUNCTION
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Feedback Cap-Max (Crss):
5 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
SMP4393 Frequently Asked Questions (FAQs)
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A good PCB layout for the SMP4393 involves keeping the input and output traces as short as possible, using a solid ground plane, and placing bypass capacitors close to the device. Additionally, it's recommended to use a 4-layer PCB with a dedicated power plane and a dedicated ground plane to minimize noise and EMI.
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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 VCC pin to 5V and the VEE pin to -5V, with a quiescent current of around 10mA. Additionally, ensure that the input signals are within the recommended common-mode voltage range.
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The maximum power dissipation of the SMP4393 is typically around 1.5W. To ensure you don't exceed this, calculate the total power dissipation based on the output current and voltage, and make sure to provide adequate heat sinking and thermal management. A good rule of thumb is to keep the junction temperature below 150°C.
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To minimize noise and EMI, use a shielded enclosure, keep the input and output traces as short as possible, and use bypass capacitors to filter out high-frequency noise. Additionally, consider using a ferrite bead or a common-mode choke to further reduce EMI.
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The recommended operating temperature range for the SMP4393 is typically between -40°C and 85°C. Operating outside of this range may affect the device's performance and reliability.
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SMP4393 Overview
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