BU208A footprint, schematic symbol and 3D model by STMicroelectronics

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BU208A - STMicroelectronics PCB footprint - Other - Other - BU208A-4

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Part Number BU208A
Manufacturer STMicroelectronics
Pin Count 4
Part Category Transistor BJT NPN
Package Category Other
Footprint Name Other - BU208A-4
Released Date Jun 14, 2019
Last Modified Date Mar 7, 2023 4:10 PM UTC
Pinout / Pin List Click Here (Member Only)

BU208A Details

Manufacturer Part Number:
BU208A
Part Life Cycle Code:
Obsolete
Part Package Code:
TO-204AA
Package Description:
TO-3, 2 PIN
Pin Count:
2
ECCN Code:
EAR99
HTS Code:
8541.29.00.95
Manufacturer:
STMicroelectronics
YTEOL:
0
Case Connection:
COLLECTOR
Collector Current-Max (IC):
8 A
Collector-Emitter Voltage-Max:
700 V
Configuration:
SINGLE
DC Current Gain-Min (hFE):
2.3
JEDEC-95 Code:
TO-3
JESD-30 Code:
O-MBFM-P2
JESD-609 Code:
e0
Number of Elements:
1
Number of Terminals:
2
Operating Temperature-Max:
175 °C
Package Body Material:
METAL
Package Shape:
ROUND
Package Style:
FLANGE MOUNT
Polarity/Channel Type:
NPN
Power Dissipation Ambient-Max:
150 W
Power Dissipation-Max (Abs):
13 W
Qualification Status:
Not Qualified
Surface Mount:
NO
Terminal Finish:
Tin/Lead (Sn/Pb)
Terminal Form:
PIN/PEG
Terminal Position:
BOTTOM
Transistor Application:
SWITCHING
Transistor Element Material:
SILICON
Transition Frequency-Nom (fT):
7 MHz
VCEsat-Max:
1 V

BU208A Frequently Asked Questions (FAQs)

The BU208A can operate from -40°C to 150°C, but the maximum junction temperature (TJ) should not exceed 150°C.
The BU208A requires a minimum of 10mA of quiescent current (IQ) to ensure proper biasing. Additionally, the input voltage (VIN) should be at least 10V to ensure the device is fully biased.
To minimize EMI, it is recommended to use a multi-layer PCB with a solid ground plane, keep the input and output tracks short and symmetrical, and use a common-mode choke or ferrite bead on the input lines.
Yes, the BU208A can be used in a switching regulator application, but it is essential to ensure the device is properly biased and the input voltage is within the recommended range. Additionally, the switching frequency should be limited to 100kHz to minimize power losses.
To protect the BU208A from overvoltage and overcurrent conditions, it is recommended to use a voltage regulator or a zener diode to limit the input voltage, and a current-limiting resistor or a fuse to prevent excessive current.

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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

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