Your power supply or motor driver is running hot because the old PNP can't handle the load. The MJE2955 is built for exactly this: 90W dissipation, 70V collector-emitter headroom, and a solid 10A continuous current in the TO-220 case. Silicon, black case, Hfe of 20 to 70 at 25°C with a 4A bias reference. Mount it on a heatsink, wire it up, and your stage stops thermal-shutting down mid-run
| brand | JAYCAR |
| package | TO-220 |
| polarity | PNP |
| type | Power Transistor |
| power_dissipation | 90W |
| max_voltage | 70V |
| max_current | 10A |
| hfe_range | 20-70 |
| bias_reference | 4A |
| material | Silicon |
| case_colour | Black |
| category | ELECTRONICS & COMPONENTS |