View smbd2837 datasheet:

Silicon Switching Diode Array SMBD 2837 SMBD 2838 For high-speed switching applications Common cathode Type Marking Ordering Code Pin Configuration Package1) (tape and reel) SMBD 2837 sA5 Q68000-A8487 SOT-23 SMBD 2838 sA4 Q68000-A8437 Maximum Ratings Parameter Symbol Values Unit SMBD 2837 SMBD 2838 Reverse voltage VR 30 50 V Peak reverse voltage VRM 35 75 Forward current IF 200 mA Surge forward current, t = 1 µs IFS 4.5 A Total power dissipation, TS =35?C Ptot 250 mW Junction temperature Tj 150 ?C Storage temperature range Tstg – 65 … + 150 Thermal Resistance Junction - ambient2) Rth JA ? 600 K/W Junction - soldering point Rth JS ? 460 1) For detailed information see chapter Package Outlines. 2) Package mounted on epoxy pcb 40 mm ? 40 mm ? 1.5 mm/6 cm2 Cu. 5.91