A diode is an electronic component which has two terminals and has a high resistance to current in one direction and a low resistance to current in the other direction. It allows current to flow in only one direction. 

On the other hand, a rectifier is an electronic component that converts alternating current into pulsating direct current. 

Below are some of the diodes & rectifiers that we have: 

• 7-Segment Displays
• Bridge Rectifiers
• Fast Recovery Diodes
• Hot Carrier Diodes
• LED Dot-Matrix
• LED Lamps
• Liquid Crystal Displays (LCD)
• Rectifiers
• RF Diodes
• Schottky Rectifiers
• Signal Diodes
• Varactors
• Zener Diodes 
  Wattage: 0.5W (DO-35), 1W (DO-41), 5W (DO-27A)