TIP31C transistor Pinout, Datasheet and uses

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

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

Collector − Emitter Voltage(V_CEO)

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

Collector−Base Voltage(V_CB)

• 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)

 

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