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TIP127 Datasheet [100V, 5 Amp PNP Darlington Transistor]

Last Updated on February 27, 2023 by Swagatam Leave a Comment

The TIP127 is a PNP Darlington transistor commonly used for high-power switching applications. Here is the complete datasheet for this transistor:

Table of Contents
  • Electrical Characteristics:
  • Thermal Characteristics:
  • Pin Configuration:
  • Internal Darlington Configuration
  • How to Switch ON TIP127 Transistor
  • Package Information:
  • Typical Applications:
  • Limitations:
  • Other Features:

Electrical Characteristics:

  • Collector-Emitter Voltage (VCEO): 100V
  • Collector-Base Voltage (VCBO): 100V
  • Emitter-Base Voltage (VEBO): 5V
  • Collector Current (IC): 5A (continuous), 8A (peak)
  • Base Current (IB): 50mA (continuous), 100mA (peak)
  • Power Dissipation (PD): 2W
  • Minimum hFE or DC Current gain: 1000

Thermal Characteristics:

  • Junction Temperature (Tj): -65°C to 150°C
  • Thermal Resistance - Junction to Case (RθJC): 3.125°C/W
  • Thermal Resistance - Junction to Ambient (RθJA): 62.5°C/W

Pin Configuration:

warning message: electricity is dangerous, proceed with caution
TIP127 pinout details

As shown in the above figure, the TIP127 transistor has three pins: the collector (C), the base (B), and the emitter (E). The pinout configuration is as follows:

  • Pin 1: Base (B)
  • Pin 2: Collector (C)
  • Pin 3: Emitter (E)

Internal Darlington Configuration

The TIP127 is a PNP Darlington transistor which has two PNP transistors configured with each other, as shown in the following diagram:

TIP127 internal Darlington configuration

How to Switch ON TIP127 Transistor

Since the TIP127 is a PNP transistor, it can be switched ON by applying a negative potential to it base pin, as shown in the following circuit diagram:

tip127 load control circuit

Package Information:

The TIP127 transistor is available in the TO-220 package, which is a through-hole package with a single mounting hole. The package dimensions are as follows:

  • TO-220 Package: 10.67mm x 15.87mm x 4.83mm

Typical Applications:

The TIP127 transistor is commonly used in high-power switching applications, such as:

  • Power supplies
  • Motor control
  • Lamp dimming
  • Solenoid control
  • Audio amplifiers
  • High-current drivers

Limitations:

  • Maximum Collector Current: 5A (continuous)
  • Maximum Power Dissipation: 2W
  • Maximum Voltage: 100V

Other Features:

  • Darlington Configuration
  • High DC Current Gain (hFE)
  • Low Saturation Voltage (VCEsat)

Note: This information is taken from the TIP127 datasheet published by ON Semiconductor. Actual values may vary based on specific manufacturer and production batch.

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Filed Under: Datasheets and Components Tagged With: 100V, Darlington, Datasheet, PNP, TIP127, Transistor

About Swagatam

I am an electronics engineer and doing practical hands-on work from more than 15 years now. Building real circuits, testing them and also making PCB layouts by myself. I really love doing all these things like inventing something new, designing electronics and also helping other people like hobby guys who want to make their own cool circuits at home.

And that is the main reason why I started this website homemade-circuits.com, to share different types of circuit ideas..

If you are having any kind of doubt or question related to circuits then just write down your question in the comment box below, I am like always checking, so I guarantee I will reply you for sure!

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