First line: Series PTC6O6Q, PTC6061, PTC6062, PTC6063 Fast-Switching High Power Darlington Transistors Amperes Volts FEATURES High Voltage Rating Volts Sustaining Fast-Switching Capabilities/Fast Turn-Off Time Glass Passivated Provide Excellent High Temperature Stability Thermally Stable Structure Reliability PAbstract: .. Series PTC6O6Q, PTC6061 PTC6061 , PTC6062, PTC6063 PTC6063 Fast-Switching High Power Darlington Transistors 20 Amperes †¢ 500 Volts FEATURES †¢ High Voltage Rating - 500 Volts Sustaining †¢ Fast-Switching .. Tags: datasheet abstract..