TIP120 vs TIP122 Darlington NPN Transistor
Magi
29 July 2022
4597
TIP122
STMicroelectronics
NPN - Darlington 150°C TJ 500μA 1 Elements 3 Terminations SILICON TO-220-3 Tube Through Hole
Purchase Guide
NPN - Darlington 150°C TJ 500μA 1 Elements 3 Terminations SILICON TO-220-3 Tube Through Hole
TIP120 and TIP122 come from the same NPN Family transistor. This passage covers the detailed information of Darlington NPN Transistor TIP120 and TIP122 including their pinouts, datasheets, and some circuits that you might find practical, hope you enjoy reading it!
TIP122 NPN PowerTransistor
Catalog
- TIP120 Overview
- TIP122 Overview
- TIP120 vs TIP122: applications
- TIP120 vs TIP122:features
- TIP120 vs TIP122:internal schematic diagrams
- TIP120 vs TIP122:alternatives
- TIP120 vs TIP122: equivalent
- How to Safely Long Run TIP122 in a Circuit
- Parts with Similar Specs
TIP120 Overview
The TIP120 is an NPN Darlington Power Transistor. It can switch loads up to 60V with a peak current of 8A and a continuous current of 5A. This makes it suitable for medium and high-power electronics like controlling motors, solenoids, or high-power LEDs.
TIP122 Overview
TIP122 is an NPN Darlington transistor. Darlington transistor means there are two transistors in one package connected to increase gain at the output. TIP122 transistor has a lot of good features like 5A collector current, max emitter-base voltage is 5V, max collector dissipation is 65 watts, and minimum & maximum current gain is equal to 1000. This transistor is designed to use as a switch and for amplification purposes.
TIP120 & TIP122: pinouts
TIP120and TIP122 share the same pinout picture, which is shown below.
| Pin Number | Pin Name | Description |
| 1 | Base | Controls the biasing of the transistor, Used to turn ON or OFF the transistor |
| 2 | Collector | Current flows in through collector, normally connected to load |
| 3 | Emitter | Current Drains out through emitter, normally connected to ground |
TIP120 vs TIP122: applications
TIP120application
Can be used to switch high current (upto 5A) loads
Can be used as medium Power switches
Used where high amplification is needed
Speed control of Motors
Inverter and other rectifier circuits
TIP122 application
Audio Amplifier
Audio Amplifier Stages
Audio Preamplifiers
Switching Loads Under 5A
TIP120 vs TIP122:features
TIP120 features
NPN Medium-power Darlington Transistor
High DC Current Gain (hFE), typically 1000
Continuous Collector current (IC) is 5A
Collector-Emitter voltage (VCE) is 60V
Collector-Base voltage (VCB) is 60V
Emitter Base Voltage (VBE) is 5V
Base Current(IB) is 120mA
The peak load current is 8A
Available in To-220 Package
TIP122 features
Darlington Medium-power NPN Transistor
High DC Current Gain (hFE), typically 1000
Continuous Collector current (IC) is 5A
Collector-Emitter voltage (VCE) is 100 V
Collector-Base voltage (VCB) is 100V
Emitter Base Voltage (VBE) is 5V
Base Current(IB) is 120mA
Available in To-220 Package
TIP120 vs TIP122:internal schematic diagrams
TIP120 vs TIP122:alternatives
TIP120alternatives
BC549, BC636, 2N2222A, BC547, 2N2219, 2N4401, 2N3904, BD139
TIP122 alternatives
BC549, BC636, BC639, BC547, 2N2369, 2N3055, 2N3904, 2N3906, 2SC5200
TIP120 vs TIP122: equivalent
TIP120equivalent
TIP127 (PNP), 2N5306, 2N6532, 2SD1415, 2SD2495, BDT63, BDW2, KSB601, KSD560, MJF6388
TIP122 equivalent
TIP127 (PNP), 2N6045, 2N6532, 2SD1415, 2SD2495, BDT63, BDW2, KSB601, KSD560, MJF6388
TIP120 & TIP122:package
How to Safely Long Run TIP122 in a Circuit
To get better performance with this Darlington transistor we suggest always staying below its maximum ratings. Do not operate it in circuits using more than 100V. Do not provide a load of more than 5A. Always use a suitable base resistor to provide the required current at its base. Use a suitable heatsink to save it from overheating and store or use it in temperatures below -65 centigrade and above +150 centigrade.
TIP120 & TIP122:datasheet
TIP120 & TIP122:manafacturer
STMicroelectronicsis a global independent semiconductor company and is a leader in developing and delivering semiconductor solutions across the spectrum of microelectronics applications. An unrivaled combination of silicon and system expertise, manufacturing strength, Intellectual Property (IP) portfolio, and strategic partners positions the Company at the forefront of System-on-Chip (SoC) technology, and its products play a crucial role in enabling today's convergence trends.
Parts with Similar Specs
The three parts on the right have similar specifications to STMicroelectronics & TIP122.
Image
Part Number
Manufacturer
Mount
Package / Case
Polarity
Collector Emitter Breakdown Voltage
Max Collector Current
Collector Emitter Saturation Voltage
hFE Min
Max Power Dissipation
View Compare
TIP122
STMicroelectronics
Through Hole
TO-220-3
NPN
100 V
5 A
4 V
1000
65 W
TIP32CTU
ON Semiconductor
Through Hole
TO-220-3
-
100 V
3 A
-1.2 V
25
2 W
TIP122VSTIP32CTUTIP41CTU
ON Semiconductor
Through Hole
TO-220-3
-
100 V
6 A
1.5 V
15
2 W
TIP122VSTIP41CTUTIP32C
ON Semiconductor
Through Hole
TO-220-3
PNP
100 V
3 A
-1.2 V
10
2 W
TIP122VSTIP32C
Frequently Asked Questions
Is TIP120 NPN or PNP?
The TIP120 is an NPN Darlington Power Transistor. It can switch loads up to 60V with a peak current of 8A and a continuous current of 5A.
How does a TIP120 transistor work?
TIP120 comes with a Darlington pair in which two transistors are connected so that the current amplified by one transistor is strengthened further by the other transistor. This configuration features a much higher current gain than if each transistor is taken separately.
What’s the complement of TIP122?
The complement of the TIP122 transistor is TIP127.
What’s the TIP122 same family transistors?
NPN Family transistors are TIP120, TIP121, TIP122, and PNP Family are TIP125, TIP126, and TIP127 (PNP).
What is the Base-Emitter Voltage of TIP120 transistor?
5V.
