TIP126G footprint, schematic symbol and 3D model by onsemi

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PCB Footprints

TIP126G - onsemi PCB footprint - Transistor Outline, Vertical - Transistor Outline, Vertical - TO−220−3 10.10x15.12x4.45, 2.54P CASE 221A ISSUE AL

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Part Number TIP126G
Manufacturer onsemi
Pin Count 3
Part Category Transistor
Package Category Transistor Outline, Vertical
Footprint Name Transistor Outline, Vertical - TO−220−3 10.10x15.12x4.45, 2.54P CASE 221A ISSUE AL
Released Date Jul 6, 2026
Last Modified Date Jul 6, 2026 9:57 AM UTC
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TIP126G Details

Manufacturer Part Number:
TIP126G
Brand Name:
onsemi
Pbfree Code:
Yes
Rohs Code:
Yes
Part Life Cycle Code:
Obsolete
Part Package Code:
TO-220 3 LEAD STANDARD
Package Description:
LEAD FREE, PLASTIC, CASE 221A-09, 3 PIN
Pin Count:
3
Manufacturer Package Code:
221A
ECCN Code:
EAR99
Factory Lead Time:
4 Weeks
Manufacturer:
onsemi
YTEOL:
0
Case Connection:
COLLECTOR
Collector Current-Max (IC):
5 A
Collector-Emitter Voltage-Max:
80 V
Configuration:
DARLINGTON WITH BUILT-IN DIODE AND RESISTOR
DC Current Gain-Min (hFE):
1000
JEDEC-95 Code:
TO-220AB
JESD-30 Code:
R-PSFM-T3
JESD-609 Code:
e3
Number of Elements:
1
Number of Terminals:
3
Operating Temperature-Max:
150 °C
Package Body Material:
PLASTIC/EPOXY
Package Shape:
RECTANGULAR
Package Style:
FLANGE MOUNT
Polarity/Channel Type:
PNP
Power Dissipation-Max (Abs):
65 W
Qualification Status:
Not Qualified
Surface Mount:
NO
Terminal Finish:
Tin (Sn)
Terminal Form:
THROUGH-HOLE
Terminal Position:
SINGLE
Transistor Application:
AMPLIFIER
Transistor Element Material:
SILICON

TIP126G Frequently Asked Questions (FAQs)

The TIP126G can operate safely between -55°C to 150°C, but the recommended operating temperature range is -40°C to 125°C for optimal performance.
To ensure proper biasing, the base-emitter voltage (VBE) should be around 1.4V to 1.6V, and the collector-emitter voltage (VCE) should be around 1V to 2V. Additionally, the base current should be limited to 5mA to prevent overheating.
The maximum collector current rating for the TIP126G is 5A, but it's recommended to keep the collector current below 3A for optimal performance and to prevent overheating.
To protect the TIP126G from EOS, use a voltage regulator or a zener diode to limit the voltage across the device. Additionally, use a current-limiting resistor in series with the base to prevent excessive base current.
Yes, the TIP126G can be used as a switch, but it's not recommended due to its relatively low current gain (hFE) and high saturation voltage (VCE(sat)). A dedicated switch transistor like the TIP120 or TIP122 would be a better choice.

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TIP126G Overview

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