MMBD2004S-7-F is an SMD switching diode marked KA9 or KAE on the silk screen. It is packaged in SOT-23 and located on the Whatsminer control board. Its switching speed is fast, and it is very suitable for the automatic insertion of surface mount packages.
Product parameter:
Voltage - DC Reverse (Vr) (Max): 240 V
Current - Average Rectified (Io) (per Diode): 225mA (DC)
Voltage - Forward (Vf) (Max) @ If: 1 V @ 100 mA
Speed: Fast Recovery =< 500ns, > 200mA (Io)
Reverse Recovery Time (trr): 50 ns
Current - Reverse Leakage @ Vr: 100 nA @ 240 V
Operating Temperature - Junction: -65°C ~ 150°C
Feature:
• Fast switching speed
• Ideal for automatic insertion of surface mount packages
• High reverse breakdown voltage