Symbol
PCB Footprints
- Datasheet Download Datasheet
- Stock & Prices $ Price & Stock for SMBT3904
- Part Number SMBT3904
- Manufacturer Infineon
- Pin Count 3
- Part Category Transistor BJT NPN
- Package Category Other
- Footprint Name Other - SOT95P290X110-3N
- Released Date Jan 11, 2017
- Last Modified Date Nov 15, 2024 1:35 PM UTC
- Pinout / Pin List Click Here (Member Only)
SMBT3904 Details
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Manufacturer Part Number:
SMBT3904
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Pbfree Code:
Yes
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Rohs Code:
Yes
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Part Life Cycle Code:
End Of Life
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Package Description:
ROHS COMPLIANT PACKAGE-3
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Pin Count:
3
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ECCN Code:
EAR99
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Manufacturer:
Infineon Technologies AG
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YTEOL:
3.43
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Collector Current-Max (IC):
0.2 A
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Collector-Emitter Voltage-Max:
40 V
SMBT3904 Frequently Asked Questions (FAQs)
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Infineon recommends a thermal pad on the bottom of the package, connected to a large copper area on the PCB to dissipate heat efficiently. A minimum of 2oz copper thickness is recommended, and the thermal pad should be connected to a ground plane to reduce thermal resistance.
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To ensure reliable operation at high temperatures, it's essential to follow the recommended operating conditions, including junction temperature (Tj) and ambient temperature (Ta). Additionally, consider using a heat sink or thermal interface material to reduce the thermal resistance between the device and the PCB.
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The maximum allowed voltage on the input pins is 5.5V, which is the absolute maximum rating. However, for reliable operation, it's recommended to keep the input voltage within the recommended operating range of 3.3V to 5V.
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The SMBT3904 has built-in ESD protection, but it's still essential to follow proper ESD handling procedures during assembly and testing. Use an ESD wrist strap or mat, and ensure that the PCB is properly grounded to prevent static discharge.
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The recommended power-up sequence is to apply the power supply voltage (VCC) before applying the input signals. This ensures that the internal voltage regulators are properly initialized before the device starts operating.
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SMBT3904 Overview
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