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The Central Semiconductor Corp 2N6431 PBFREE is an NPN silicon transistor manufactured via the epitaxial planar process, designed for high voltage amplifier applications. It features a collector-base voltage (V_CBO) and collector-emitter voltage (V_CEO) of 300 V, with a continuous collector current (I_C) rating of 500 mA. Power dissipation is rated at 1.8 W at 25°C case temperature and 500 mW at ambient conditions. The device operates within a junction temperature range of -65 to +200 °C. Electrical characteristics include a minimum DC current gain (h_FE) of 30 at I_C=30mA, a transition frequency (f_T) of 50 MHz at I_C=10mA, and a maximum collector-base cutoff current (I_CBO) of 250 nA at V_CB=200V.
Verify that the ordering suffix PBFREE corresponds to lead-free plating as specified in manufacturer documentation. Confirm package type TO-18 availability and ensure compliance with specific environmental regulations required by the end application. Cross-reference datasheet revision R2 for accurate electrical limits before finalizing procurement specifications.
Select this component when a 300 V NPN transistor with moderate power handling is required. Compare h_FE ranges against circuit biasing needs, noting the variation between low and high current gains. Ensure thermal management strategies accommodate the 500 mW ambient dissipation limit if case cooling is not utilized.
This part belongs to the 2N6430 series of complementary silicon transistors from Central Semiconductor. The series includes NPN (2N6430/2N6431) and PNP (2N6432/2N6433) variants. These devices are distinguished by their high voltage ratings and robust thermal performance compared to standard small-signal transistors.
Public confirmed substitute part numbers: 2N6430, 2N6432, 2N6433.