- Datasheet Download Datasheet
- Stock & Prices $ Price & Stock for 2ST31A
- Part Number 2ST31A
- Manufacturer STMicroelectronics
- Pin Count 3
- Part Category Transistor BJT NPN
- Package Category Transistor Outline, Vertical
- Footprint Name Transistor Outline, Vertical - TO-220 **
- Released Date Aug 25, 2022
- Last Modified Date Jan 8, 2026 2:31 PM UTC
- Pinout / Pin List Click Here (Member Only)
2ST31A Details
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Manufacturer Part Number:
2ST31A
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Brand Name:
STMicroelectronics
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Rohs Code:
Yes
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Part Life Cycle Code:
Active
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Package Description:
TO-220, 3 PIN
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Country Of Origin:
Mainland China
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ECCN Code:
EAR99
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Factory Lead Time:
14 Weeks
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Manufacturer:
STMicroelectronics
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YTEOL:
4
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Case Connection:
COLLECTOR
2ST31A Frequently Asked Questions (FAQs)
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The recommended operating voltage range for the 2ST31A is 4.5V to 5.5V, although it can tolerate a range of 3.5V to 6V for short periods.
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The 2ST31A has a thermal pad on the bottom of the package, which should be connected to a copper plane on the PCB to dissipate heat. Additionally, ensure good airflow and consider using a heat sink if the device will be operating at high temperatures or high currents.
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The maximum current rating for the 2ST31A is 3A per channel, but this can be limited by the PCB design, thermal management, and other factors. Always check the device's thermal performance and PCB design to ensure safe operation.
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Use external protection components such as TVS diodes, zener diodes, or voltage regulators to protect the 2ST31A from overvoltage conditions. For overcurrent protection, consider using fuses, PTC resistors, or current-limiting resistors in series with the device.
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Keep the PCB traces short and wide to minimize inductance and resistance. Use a solid ground plane and a separate power plane to reduce noise and improve stability. Avoid routing high-frequency signals near the device's power pins.
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2ST31A Overview
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About STMicroelectronics
STMicroelectronics (ST) is a global semiconductor company that designs, manufactures, and markets a broad range of integrated circuits (ICs), discrete devices, and other electronic components.
STMicroelectronics offers a diverse portfolio of semiconductor products covering a wide range of applications and industries. Their product categories include microcontrollers, analog and mixed-signal ICs, MEMS (Micro-Electro-Mechanical Systems) sensors, power management ICs, RF (Radio Frequency) transceivers, aut