NPN-Transistor 2SB1243, 3A, TO-251 ( I-Pak ), ATV, 50V. Collector current: 3A. Housing: TO-251 ( I-Pak ). Housing (according to data sheet): ATV. Collector/emitter voltage Vceo: 50V. Assembly/installation: surface-mounted component (SMD). FT: 70 MHz. Function: -. Ic(pulse): 4.5A. Marking on the case: B1243 (RN). Max hFE gain: 390. Minimum hFE gain: 82. Number of terminals: 3. Pd (Power Dissipation, Max): 1W. Quantity per case: 1. Saturation voltage VCE(sat): 1V. Semiconductor material: silicon. Technology: 'Epitaxial planar type'. Temperature: +150°C. Type of transistor: PNP. Vcbo: 60V. Vebo: 5V. Original product from manufacturer: ROHM. Quantity in stock updated on 10/31/2025, 07:35