Dual NPN in a SOT-363 — what this transistor is for
The Infineon BC846SH6727XTSA1 is a dual NPN general-purpose switching transistor in a 6-VSSOP / SC-88 / SOT-363 surface-mount package. It pairs two matched NPN devices in a single 250 mW package, saving board space compared to two discrete SOT-23s.
65 V breakdown and 250 MHz fT — where the ratings matter
The 65 V V(BR)CEO gives headroom on 24 V or 48 V rails, so the transistor can handle inductive kickback or supply transients without avalanche failure. The 250 MHz transition frequency means it switches cleanly up to a few megahertz — fine for general-purpose relay drivers, LED PWM, or logic-level translation, but not for RF front-ends above 100 MHz. Minimum DC current gain of 200 at 2 mA, 5 V ensures the base drive current stays low in saturated switching, which simplifies the upstream driver circuit.
Last Buy status — plan your final order
That means Infineon has scheduled the end of production, and the window for placing final orders is closing. If this transistor is in your current BOM, you should evaluate a last-time-buy quantity to cover remaining production runs, or qualify a pin-compatible replacement.