TIP31G

Single Bipolar Transistors Overview

The TIP31G is a discontinued NPN silicon plastic power transistor from onsemi, housed in a TO-220 package. It features a maximum collector-emitter voltage of 40 Vdc and a continuous collector current rating of 3.0 Adc. The device supports a peak collector current of 5.0 Adc and dissipates up to 40 W at a case temperature of 25°C. Electrical characteristics include a minimum DC current gain (hFE) of 10 at 3.0 Adc, a maximum collector-emitter saturation voltage of 1.2 Vdc, and a current-gain bandwidth product of 3.0 MHz.

Single Bipolar Transistors Feature Summary

• High current gain-bandwidth product suitable for general-purpose amplifier and switching applications
• Compact TO-220 package design with lead-free and RoHS compliant construction

Single Bipolar Transistors Applications

• General purpose amplifier circuits
• Switching applications

Single Bipolar Transistors Procurement Notes

Verify the discontinuation status of the TIP31G before initiating procurement. This component is not recommended for new designs per official documentation. Contact an onsemi representative for current availability information or alternative part recommendations. Ensure that any existing inventory meets specific project requirements given the end-of-life designation.

Single Bipolar Transistors Selection Notes

Select this component only for legacy system maintenance or repair where the original design specifies the TIP31G. Evaluate thermal management requirements carefully, as the device requires heat sinking for full power dissipation. Confirm that the 40 V collector-emitter voltage rating aligns with the circuit's maximum operating conditions to prevent breakdown.

Single Bipolar Transistors Part Context

The TIP31G belongs to the TIP31xG family of complementary silicon plastic power transistors manufactured by onsemi. This series includes variants with different voltage ratings, such as the TIP31AG, TIP31BG, and TIP31CG. The TIP31G specifically represents the 40 V variant within this lineup, designed for medium-power linear and switching tasks.

Single Bipolar Transistors Replacement Considerations

Consult an onsemi representative for current replacement options. The datasheet explicitly states that this device is not recommended for new designs.