MPSA28

MPSA28 / MMBTA28 / PZTA28 Discrete POWER & Signal Technologies MPSA28 MMBTA28 C PZTA28 C E C B E C B TO-92 E SOT-23 Mark: 3SS B SOT-223 NPN Darlington Transistor This device is designed for applications requiring extremely high current gain at collector currents to 500 mA. Sourced from Process 03. Absolute Maximum Ratings* Symbol VCES VCBO VEBO IC TJ, Tstg Collector-Emitter Voltage Collector-Base Voltage Emitter-Base Voltage Collector Current - Continuous TA = 25°C unless otherwise noted Parameter Value 80 80 12 800 -55 to +150 Units V V V mA °C Operating and Storage Junction Temperature Range *These ratings are limiting values above which the serviceability of any semiconductor device may be impaired. NOTES: 1) These ratings are based on a maximum junction temperature of 150 degrees C. 2) These are steady state limits. The factory should be consulted on applications involving pulsed or low duty cycle operations. Thermal Characteristics Symbol PD RθJC RθJA TA = 25°C unless otherwise noted Characteristic Total Device Dissipation Derate above 25°C Thermal Resistance, Junction to Case Thermal Resistance, Junction to Ambient MPSA28 625 5.0 83.3 200 Max *MMBTA28 350 2.8 357 **PZTA28 1,000 8.0 125 Units mW mW/ °C °C/W °C/W *Device mounted on FR-4 PCB 1.6" X 1.6" X 0.06." **Device mounted on FR-4 PCB 36 mm X 18 mm X 1.5 mm; mounting pad for the collector lead min. 6 cm2 . © 1997 Fairchild Semiconductor Corporation MPSA28 / MMBTA28 / PZTA28 NPN Darlington T...