NPN SILICON EPITAXIAL TRANSISTOR (DARLINGTON CONNECTION) FOR LOW-FREQUENCY POWER AMPLIFIERS AND LOW-SPEED SWITCHING
The 2SD1843 is a Darlington connection transistor with on-chip dumper diode in collector to emitter and zener diode in collector to base. This transistor is ideal for use in acuator drives such as motors, relays, and solenoids.
FEATURES
• High DC current gain due to Darlington connection
• High surge resistance due to on-chip protection elements:
C to E: Dumper diode
C to B: Zener diode
• Low collector saturation voltage