2SD1843

DATA SHEET DARLINGTON POWER TRANSISTOR 2SD1843 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. PACKAGE DRAWING (UNIT: mm) 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 ABSOLUTE MAXIMUM RATINGS (Ta = 25°C) Parameter Collector to base voltage Collector to emitter voltage Emitter to base voltage Collector current (DC) Collector current (pulse) Total power dissipation Junction temperature Storage temperature Symbol VCBO VCEO VEBO IC(DC) IC(pulse)* PT(Ta = 25°C) Tj Tstg Ratings 60±10 60±10 7.0 ±1.0 ±2.0 1.0 150 −55 to +150 Unit V V V A A W °C °C * PW ≤ 10 ms, duty cycle ≤ 50% ELECTRICAL CHARACTERISTICS (Ta = 25°C) Parameter Collector cutoff current Emitter cutoff current DC current gain DC current gain Collector saturation voltage Base saturation voltage Turn-on time Storage time Fall time Symbol ICBO IEBO hFE2** hFE2** VCE(sat)** VBE(sat)** tON tstg tf Conditions VCB = 40 V, IE = 0 VEB = 5.0 V, IC = 0 VCE = 2.0 V, IC = 0.2 A VCE = 2.0 V, IC = 0.5 A IC = 0.5 A, IB = 0.5 mA IC = 0.5 A, IB = 0.5 mA IC = 0.5 A, RL = 100 Ω IB1 = −IB2 = 0....