The BF423, BF-423, 423 is a High Voltage PNP Bipolar Transistor is designed for general purpose amplifier applications. This device is housed in the TO-92 package.
The 2SK2837, 2SK-2837, K2837, 2837 is a 500V 20A N Channel Silicon Field Effect Transistor Or MOFET TO-3PN-3 Package. Chopper Regulator, DC−DC Converter and Motor Drive.
The TIP140, TIP141 and TIP142 are 100V 10A 125W Silicon Epitaxial-Base NPN power transistors in monolithic Darlington configuration, mounted in TO-220A/B Package.
The Micro SD TF Card Module is SPI interface via file system driver, microcontroller system to complete the MicroSD card reading and writing functions.
The BC557 has a gain value of 110 to 800, this value determines the amplification capacity of the transistor. The maximum amount of current that could flow through the Collector pin is 100mA, hence we cannot connect loads that consume more than 100mA usin
IRF3205 is a high-current N-Channel MOSFET that can switch currents up to 110A and 55V. The specialty of the MOSFET is that it has a very low on resistance of only 8.0mΩ making it suitable for switching circuits like Inverters, motor speed control, DC-DC