ATmega328 with Arduino Bootloader Product ID: 41630 RoHS: Our price: US$6.50

MC33269D-5.0 Arduino 2009 MEGA Product ID: 41645 RoHS: Our price: US$1.58

74HC595 - 8-bit serial-in, serial or parallel-out shift register with output latches Product ID: 41640 RoHS: Our price: US$0.50

Optical Coupler 4N35 Product ID: 41639 RoHS: Our price: US$2.00

MAX7219 - Serially Interfaced 8-Digit LED Display Driver Product ID: 41638 RoHS: Our price: US$6.00

OPT101P Photoelectric Sensor Product ID: 41636 RoHS: Our price: US$6.10

6N137 High CMR high speed TTL compatible optocoupler Product ID: 41633 RoHS: Our price: US$1.50

TL7805C 5V Positive Voltage Regulator Product ID: 41631 RoHS: Our price: US$1.00

ATmega168-20PU Arduino Bootloader Product ID: 41629 RoHS: Our price: US$5.80

74HC374 - Octal D-type 3-state flip-flop Product ID: 41627 RoHS: Our price: US$0.50