| Equivalent | ESM952A | |
| Type | Transistor Silicon NPN | |
| Case | TO3 | |
| Manufacturer | SGS Thomson | |
| Vbr CEO | 600 | |
| Max. PD (W) | 214 | |
| t(f) Max. (S) | 0.7u | |
| Ic Max. (A) | 24 | |
| Icbo Max. @Vcb Max. (A) | 0.4m | |
| Polarity | NPN | |
| Tr Max. (s) | 0.8u | |
| Derate Above 25°C | 1.4 | |
| Trans. Freq (Hz) Min. | 5M | |
| Oper. Temp (°C) Max. | 175 | |
| Pinout Equivalence Number | 3-14 | |
| Surface Mounted Yes/No | NO | |
| Maximum Collector Power Dissipation (Pc) | 214 W | |
| Maximum Collector-Emitter Voltage |Vce| | 600 V | |
| Maximum Collector Current |Ic max| | 24 A | |
| Max. Operating Junction Temperature (Tj) | 200 °C | |
| Forward Current Transfer Ratio (hFE), MIN | 4 | |
| SKU | 83334 | |