Aluminum oxide, low esr capacitors, Types of Aluminum Electrolytic Capacitors
PW Series 1000 uF 50V 105°C Ø16 x 25mm LS=7.5mm Radial Aluminum Electrolytic Cap

Digital clock, crystal oscillator, Load capacitance, Quartz watch crystal
CM315D Series 32.768 kHz ±20 ppm 9 pF - 40 to +85 °C Tuning Fork Crystal Unit

What is a Signal Relay, low level current switching, Tyco electronics
AGQ Series High Sensitivity 1 A DPDT 24 VDC Gull Wing SMT Signal Relay

Line driver circuit, encoder line driver, encoder line driver, line driver chips
MIC5841 Series 15V 3.3 MHz 8-Bit Serial-Input Latched Driver - SOIC-18

LED Driver Modules, high power led driver, what is a led driver, LED power supplies
100 - 277Vac, 240W, 445 - 6700mA, 18-54V, [0-10V, PWM...], IP67 LED Driver