Arduino Pro Mini usb a type Its metal contact is nickel

Its metal contact is nickel plated

Burglar alarm system

5A Package TO-220

Board technique

Brand TOSHIBA Isolation Voltage 5000 Vrms Output Supply Voltage  24V Input Reverse Voltage  5V Input Forward Current  50 mA Output Collector Power Dissipation  100 mW Operating Temperature -55°C - 100°C Storage Temperature  -55°C - 125°C Package DIP

Arduino Pro Mini usb a type Its metal contact is nickelATmega328 is commonly used in many projects and autonomous systems where a simple, low powered, low cost micro controller is needed. Perhaps the most common implementation of this chip is on the popular Arduino development platform, namely the Arduino Uno, Arduino Pro Mini and Arduino Nano models. Features: ATmega328P running at 16MHz with external resonator (0. 5% tolerance) 0. 8mm Thin PCB USB connection off board Supports auto reset 5V regulator