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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.

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