The BAS40-04 in a SOT-23 package is a surface-mount dual series Schottky barrier diode array. It features two fast-switching, low-forward-voltage diodes connected in series inside a single 3-pin package, making it ideal for high-speed switching, signal clamping, and circuit protection. Key Specifications • Configuration. Dual Schottky diodes connected in series. • Package. SOT-23 (TO-236AB) 3-pin surface mount. • Maximum Reverse Voltage (\(V_{R}\) / \(V_{RRM}\)). 40 V. • Continuous Forward Current (\(I_{F}\)). 120 mA to 200 mA maximum (varies by manufacturer, such as 120 mA for Nexperia and onsemi, and 200 mA for Diodes Incorporated and Vishay). • Forward Voltage Drop (\(V_{F}\)). 380 mV maximum at \(I_F = 1\text{ mA}\), and 1.0 V maximum at \(I_F = 40\text{ mA}\). • Reverse Recovery Time (\(t_{rr}\)). 5 ns maximum. • Diode Capacitance (\(C_{d}\)). 5 pF maximum at \(V_R = 0\text{ V}\). • Reverse Leakage Current (\(I_{R}\)). 100 nA to 1 µA maximum at \(V_R = 30\text{ V}\) (depending on manufacturer).