The Bipolar Power Transistor is designed for use in general-purpose amplifier and switching applications. The MJE2955T (PNP) and MJE3055T (NPN) are complementary devices.
The XL7015 is a DC–DC buck type module is A highly efficient, high pressure step-down DC DC converter, provides the highest 0.8A output current capability, low ripple, excellent linear regulation and load regulation, up to A maximum of 80V input voltage
This is a DC-DC Step Up Red Color Boost Module with enable high-performance step-up switching current (BOOST) module. The module uses the second generation of high-frequency switching technology LM2577.
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 2SK3549-01MR, 2SK3549, 2SK-3549, K3549, 3549 is a 900V 10A 270W N-Channel Power MOSFET Enhancement Mode Package Type TO-247, Manufactured By Company Fuji Electric Corp.