MPSA12 NPN Darlington Transistor

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MPSA12 NPN Darlington Transistor The MPSA12 NPN Darlington Transistor is a silicon planar NPN bipolar transistor arranged in a Darlington configuration to deliver exceptionally high current gain for switching and amplification tasks in electronic designs. This transistor is engineered to provide robust performance in circuits where a high input impedance and substantial current amplification are essential. Its Darlington pair architecture internally combines two transistors, achieving a typical DC current gain (hFE) of up to 20,000 at IC = 10 mA, VCE = 5 V, making it suited for applications requiring significant gain with minimal base drive. Features: Darlington configuration for amplified current handling in a single package. Low leakage currents ensuring efficient off-state operation. Compact TO-92 package for easy through-hole integration. Wide operating temperature range for environmental resilience. Specifications: Parameter Value Collector-Emitter Voltage 20VDC Collector-Base Voltage 20VDC Emitter-Base Voltage 10VDC Collector Current – Continuous 1.2ADC Total Device Dissipation @ TA=25°C 625mW Derate above 25°C (Ambient) 5mW/°C Operating and Storage Temperature Range -55°Cto+150°C Thermal Resistance, Junction to Ambient 200°C/W Thermal Resistance, Junction to Case 83.3°C/W DC Current Gain (IC=10mADC, VCE=5VDC) 20000(min) Collector-Emitter Saturation Voltage (IC=10mADC, IB=0.01mADC) 1.0VDC(max) Base-Emitter On Voltage (IC=10mADC, VCE=5VDC) 1.4VDC(typ) Collector Cutoff Current (VCB=15VDC, IE=0) 100nADC(max) Emitter Cutoff Current (VEB=10VDC, IC=0) 100nADC(max) Pin Configuration: Footprint: Application: Driving relays, solenoids, and lamps from low-current sources. Sensor signal amplification in detection circuits. Interface between microcontrollers and higher-power loads. Switching in power supply control modules. High-gain stages in low-frequency amplifiers. Battery-operated devices requiring efficient current control. Package Include: 1x MPSA12 NPN Darlington Transistor. Datasheet: MPSA12