TIP31 transistor pinout

TIP31C transistor Pinout, Datasheet and uses

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The TIP31A and TIP31C are popular silicon Epitaxial-Base general purpose NPN power transistor which has 3A (3000ma) maximum load current capacity to drive the load. TIP31C is a NPN epitaxial planar transistor, designed for using in general purpose amplifier and switching applications. This transistor used for a wide variety of Switching and Amplifier Applications, Series and Shunt Regulators, Driver and Output stages of Hi-Fi Audio Amplifiers. The complementary PNP types are TIP32A and TIP32C respectively. TIP32B is also a PNP type transistor.

Specifications of TIP31 transistor

Maximum Ratings

  • IC Collector Current − Continuous (maximum current capacity for output) : 3.0 A
  • ICM Peak Collector Current − Continuous : 5.0 A
  • IB Base Current 1.0 A
  • VEB Emitter−Base Voltage : 5V
  • Power Dissipation (Ptot): 40W
  • Maximum operating Temperature: 150ºC

Collector − Emitter Voltage(VCEO)

  • TIP31G, TIP32G : 40V
  • TIP31AG, TIP32AG : 60V
  • TIP31BG, TIP32BG : 80V
  • TIP31CG, TIP32CG : 100V

Collector−Base Voltage(VCB)

  • TIP31G, TIP32G : 40V
  • TIP31AG, TIP32AG : 60V
  • TIP31BG, TIP32BG : 80V
  • TIP31CG, TIP32CG : 100V

The TIP31 transistor is typically available in a TO-220 package, which provides good thermal dissipation and easy mounting.

 

  • Thermal Characteristics
    • Junction-to-Case Thermal Resistance (Rθjc): 3°C/W
    • Junction-to-Ambient Thermal Resistance (Rθja): 62.5°C/W
    • Operating Junction Temperature (Tj): -65°C to +150°C
    • Storage Temperature (Tstg): -65°C to +150°C
  • Electrical Characteristics
    • DC Current Gain (hFE): 10 to 50 (depending on the collector current and temperature)
    • Collector-Emitter Saturation Voltage (Vce(sat)): 2V (at Ic = 3A and Ib = 0.375A)
    • Base-Emitter Saturation Voltage (Vbe(sat)): 1.2V (at Ic = 3A and Ib = 0.375A)

TIP31 transistor pinout

 

Applications and uses of TIP31 transistor

Audio Power Amplifiers

    • Output Stage: The TIP31 can be used in the output stage of an audio power amplifier, where it helps amplify the audio signal to drive speakers.
    • Driver Stage: It can also be used in the driver stage of the amplifier, providing the necessary current and voltage to the output transistors.

Pre-Amplifiers

    • Signal Amplification: In pre-amplifier circuits, the TIP31 can be used to amplify low-level audio signals from sources like microphones or musical instruments before they are further processed or sent to the main amplifier.

Audio Mixers

    • Summing Amplifiers: In audio mixers, the TIP31 can be used in summing amplifier circuits to combine multiple audio signals into a single output.

Tone Control Circuits

    • Active Filters: It can be part of active filter circuits in tone control applications, allowing adjustment of bass, mid, and treble frequencies.

DIY Audio Projects

  • Guitar Amplifiers: It can be used in DIY guitar amplifier projects for both pre-amplification and power amplification stages.
  • Home Audio Systems: It can be part of home-built audio systems, including stereo amplifiers and home theater systems.

Switching Applications

    • Relay Drivers: It can control relays in various electronic circuits.
    • Motor Drivers: It is used in circuits to drive small DC motors.
    • Solenoid Drivers: It controls solenoids in automation systems.
    • LED Drivers: It can be used to switch LED arrays on and off.

Power Regulation

    • Voltage Regulators: It can be part of voltage regulation circuits, providing stable output voltage.
    • Power Supplies: It is used in power supply circuits for regulation and switching.

Pulse Width Modulation (PWM)

    • PWM Controllers: It can be used in PWM circuits to control the duty cycle of signals for applications like motor speed control.

Inverter and Converter Circuits

  • DC-DC Converters: It is used in converter circuits for stepping up or stepping down voltage levels.
  • Inverter Circuits: It can be used in inverter circuits to convert DC to AC power.

TIP31C Equivalent

TIP31A, 2N6122(BCE), TIP31B, MJE340K(ECB), TIP41C(BCE) 

TIP31 transistor datasheet

ON semi 

 

CDIL

 

UTC

 

Multicomp

 

ST

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