BF422G footprint, schematic symbol and 3D model by onsemi

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PCB Footprints

BF422G - onsemi PCB footprint - Other - Other - TO−92 (TO−226) 1 WATT CASE 29−10 ISSUE A_2021

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Datasheet Download Datasheet
Stock & Prices Price & Stock for BF422G
Part Number BF422G
Manufacturer onsemi
Pin Count 3
Part Category Transistor
Package Category Other
Footprint Name Other - TO−92 (TO−226) 1 WATT CASE 29−10 ISSUE A_2021
Released Date Jun 22, 2020
Last Modified Date Sep 19, 2024 2:45 PM UTC
Pinout / Pin List Click Here (Member Only)

BF422G Details

Manufacturer Part Number:
BF422G
Brand Name:
onsemi
Pbfree Code:
Yes
Rohs Code:
Yes
Part Life Cycle Code:
Obsolete
Part Package Code:
TO-92 (TO-226) 5.33mm Body Height
Pin Count:
3
Manufacturer Package Code:
29-11
ECCN Code:
EAR99
Manufacturer:
onsemi
YTEOL:
0
Collector Current-Max (IC):
0.05 A
Collector-Emitter Voltage-Max:
250 V
Configuration:
SINGLE
DC Current Gain-Min (hFE):
50
JEDEC-95 Code:
TO-92
JESD-30 Code:
O-PBCY-T3
JESD-609 Code:
e1
Number of Elements:
1
Number of Terminals:
3
Operating Temperature-Max:
150 °C
Package Body Material:
PLASTIC/EPOXY
Package Shape:
ROUND
Package Style:
CYLINDRICAL
Peak Reflow Temperature (Cel):
260
Polarity/Channel Type:
NPN
Power Dissipation-Max (Abs):
0.8 W
Qualification Status:
Not Qualified
Surface Mount:
NO
Terminal Finish:
Tin/Silver/Copper (Sn/Ag/Cu)
Terminal Form:
THROUGH-HOLE
Terminal Position:
BOTTOM
Time@Peak Reflow Temperature-Max (s):
40
Transistor Application:
AMPLIFIER
Transistor Element Material:
SILICON
Transition Frequency-Nom (fT):
60 MHz

BF422G Frequently Asked Questions (FAQs)

The recommended PCB footprint for the BF422G is a standard SOT-23 package with a 1.5mm x 1.5mm pad size, 0.5mm lead pitch, and a thermal pad for heat dissipation.
To ensure reliable operation in high-temperature environments, ensure proper heat sinking, use a thermal interface material, and follow the recommended PCB layout and thermal design guidelines.
The maximum safe operating area (SOA) for the BF422G is defined by the voltage and current ratings. Ensure that the device operates within the recommended voltage (VCE) and current (IC) limits to prevent damage.
Yes, the BF422G can be used as a switch in high-frequency applications. However, ensure that the device is properly biased, and the layout is optimized to minimize parasitic inductance and capacitance.
To minimize EMI, use proper PCB layout techniques, such as separating analog and digital circuits, using ground planes, and adding EMI filters or shielding if necessary.

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BF422G Overview

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