AEC-Q101 dual pre-biased transistor in a hand-solderable SOT-563
The Toshiba RN4983FE,LXHF(CT packs one NPN and one PNP pre-biased transistor into a single SOT-563 package, saving board space and reducing component count compared to using two separate discretes. Each transistor includes integrated 22kΩ base and emitter-base resistors, so you can drive the base directly from a 3.3V or 5V logic output without external biasing components. The AEC-Q101 qualification means this part is validated for automotive under-hood and chassis-domain environments — think engine control modules, transmission controllers, or any 12V/24V vehicle system where temperature swings and vibration are the norm.
With a 50V collector-emitter breakdown and 100mA maximum collector current, this transistor handles the kind of low-side switching, level shifting, and inverter/buffer stages you find in automotive sensor interfaces, relay drivers, and solenoid pre-drivers. The 300mV saturation voltage at 250µA base current and 5mA collector current keeps conduction losses low in logic-level switching. The 500nA maximum collector cutoff is tight enough to avoid leakage issues in battery-powered modules during sleep mode.
Active lifecycle — no LTB worry for production builds
For dual-sourcing resilience, the pre-biased transistor family includes several pin-compatible options from other manufacturers — check the FAQ for a direct equivalent.