TIP115 Transistor Pinout, Equivalents, Features, Applications and Other Useful Information

TIP115 is a PNP darlington transistor designed to use in general purpose applications. In this post we will understand TIP115 transistor pinout, equivalents, features, applications and other useful information.


TIP115 Transistor Pinout, Equivalents, Features, Applications and Other Useful Info


Absolute Maximum Ratings:

  • Package Type: TO-220
  • Transistor Type: PNP Darlington
  • Max Collector Current(IC): -2A
  • Max Collector-Emitter Voltage (VCE): -60V
  • Max Collector-Base Voltage (VCB): -60V
  • Max Emitter-Base Voltage (VEBO): -5V
  • Max Collector Dissipation (Pc): 50 Watt
  • Minimum & Maximum DC Current Gain (hFE): 500 To 1000
  • Max Storage & Operating temperature: -65 to +150 Centigrade


PNP Complementary:

PNP Complementary of TIP115 is TIP110


Replacement and Equivalent:

TIP127, TIP107, TIP137, 2SB884, , 2SB886, 2SB885, 2SB1252, 2SB1481, NTE262, 2SB1227, BD902, MJE6024, BD6050, BD652, 2SB712.


TIP115 Transistor Explained / Description:

TIP115 is a transistor of the TIP11x PNP series which contains other transistors such as TIP116 and TIP117. There is also a series of their NPN types which contains TIP110, TIP111 and TIP112. All the transistors whether it is of PNP series or NPN series are designed to be used in general-purpose applications such as low speed switching and amplification. Moreover, they are also reliable to use in industrial applications.

Coming back to TIP115, looking at the absolute maximum ratings of the transistor, the max collector to emitter voltage is -60V, max collector current is -2A, peak or pulse collector is -4A, max collector to base voltage is -60V, max emitter to base voltage is -5V, max collector dissipation is 50 Watt and max store and operating temperature is from -65°C to 150°C.

Now understanding the features of the transistor it has low collector to emitter saturation voltage which makes it power efficient because every transistor has some collector to emitter saturation or voltage drop when it is in fully ON condition but TIP115 has low collector to emitter saturation which makes it power efficient.

Another feature this transistor is having is the DC current gain of upto 1000, the value of DC current gain shows how much this transistor is capable of amplifying an input signal.

Moreover, this transistor is made for industrial use which means it is a reliable transistor to use in commercial and industrial applications or circuits.


Where We Can Use it & How to Use:

The transistor is designed to use in variety of general purpose applications. Such as amplifier circuits, driver circuits, switching circuits etc. For properly use the transistor first check its pinout then connect its emitter pin with the positive rail, its base pin with the incoming signal (also connect a suitable resistor between the input signal and the base of the transistor to limit the extra current and only provide the required current to the transistor) and its collector pin with the positive of the load and negative pin of the load will be connected with the negative rail of the circuit.



Solar Applications

Audio Amplifier

Power Supplies


Motor Drivers

Battery Chargers

Battery Operated Applications


How to Safely Long Run in a Circuit:

To use this transistor safely it is important to follow some safety guidelines. First of all note its absolute maximum ratings and design your circuit or application according to it. For better performance and long term durability use the transistor at least 20% below from its absolute maximum ratings. So the maximum collector current is -2A but according to 20% below rule we will only use it upto 1.6A, the maximum means we will not drive load more than 1.6A. The collector to emitter voltage is -60V but we will not go above 48V means we will not drive load that require more than 48V. For temperature we will stay between -65°C to 150°C, means make sure to not expose the transistor at the temperature below or above these limits.



To download the datasheet just copy and paste the below link in your browser.


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