Automotive digital transistor with integrated bias network
The Infineon BCR183E6359HTMA1 is an NPN pre-biased transistor — a digital transistor — in a PG-SOT23 surface-mount package. It integrates two 10 kOhm resistors (R1 on the base, R2 from base to emitter) so the device acts as a switched output directly from a logic-level signal without external bias components. Rated for 100 mA collector current and 50 V collector-emitter breakdown, with a transition frequency of 200 MHz. The 200 mW power dissipation limit in the SOT-23 package sets the practical continuous-current ceiling below the 100 mA absolute maximum in ambient temperatures above 25 °C.
AEC-Q101 qualification and automotive deployment
This part carries AEC-Q101 qualification and an Automotive grade designation — it is specified for under-hood and chassis-domain electronics. The qualification covers the production lot traceability and stress-test regimen that commercial-grade transistors do not. Lifecycle status is Last Buy — Infineon has issued a last-time-buy notice for this specific order code.
Sourcing posture for the BOM line
For volume requirements or a production-run commitment, the last-time-buy window should be treated as a firm deadline; after it expires, only new-old-stock or surplus channel inventory remains.
