2SA1943 - PNP Power Transistor

Description The 2SA1943 is a high-power PNP transistor designed for applications requiring control of high current and voltage. It is commonly used in audio amplifiers, motor control circuits, and power supply systems. Key Features Transistor Type: PNP (Positive-Negative-Positive) Maximum Collector-Emitter Voltage (VCEO): -230V Maximum Collector Current (IC): -15A Maximum Power Dissipation (PC): 150W Current Gain (hFE): 55 to 160 (varies by model) Switching Speed: Medium to High Typical Applications Audio power amplifiers (complementary pairs with 2SC5200) Motor drivers and control circuits Power supply regulators Industrial switching systems Additional Notes Often paired with the 2SC5200 (NPN) in complementary push-pull configurations. Requires a heat sink due to high power dissipation. Package type: TO-264 (T03P). Important Warnings Do not exceed the maximum voltage/current ratings specified in the datasheet. Ensure correct polarity (PNP has reverse biasing compared to NPN). Use a thermal pad when mounting on a heat sink to prevent short circuits.