| Equivalent | GC522 | |
| Type | Transistor Germanium NPN | |
| Case | TO1H | |
| Manufacturer | Generic | |
| Polarity | NPN | |
| Maximum Collector Power Dissipation (Pc) | 0.3 W | |
| Maximum Collector-Base Voltage |Vcb| | 20 V | |
| Maximum Collector-Emitter Voltage |Vce| | 15 V | |
| Maximum Collector Current |Ic max| | 1 A | |
| Max. Operating Junction Temperature (Tj) | 90 °C | |
| Transition Frequency (ft): | 1 MHz | |
| Forward Current Transfer Ratio (hFE), MIN | 40 | |
| SKU | 1431817 | |