इसी प्रकार केA-521SR

• A-521E
  • Common anode hi.effi red single digit display
• A-521G
  • Common anode green single digit display
• A-521H
  • Common anode red single digit display
• A-521SR
  • Common anode super red single digit display
• A-521Y
  • Common anode yellow single digit display
• A-522E
  • Common anode hi.effi red dual digit display
• A-522G
  • Common anode green dual digit display
• A-522H
  • Common anode red dual digit display