The 2SK3550, 2SK-3550, K3550, 3550 is a 900V 10A 300W TO-3PF Package of new generation of high voltage MOSFET. This is utilizing an advanced charge balance mechanism for outstanding low on-resistance and lower gate charge performance.
The TIP145, TIP146 and TIP147 are 100V 10A 125W Silicon Epitaxial-Base PNP power transistors in monolithic Darlington configuration, mounted in TO-218 Package.
The YX850 Power Failure Automatic Switching Standby Battery Lithium Battery Module DC5V-48V Emergency Converter. It is an automatic switching module. When the battery is dead or there is a problem with the battery, it is powered by the power supply.
The 2SD400 2SD-400 D400 D-400 is a NPN Transistor 25V 1A 0.9W Triode Transistor TO-92L Package Silicon NPN Low Frequency Power Transistor. NPN Epitaxial Planar Silicon Transistor Absolute Maximum Ratings at Ta = 25’C.