A Two Digit Seven Segment Display, also known as a 2 Digit 7 Segment Display or Dual Digit LED Display, combines two numeric digits in a single display package. It can display numeric values from 00 to 99 and is commonly used where two-digit counting, timing, measurement or setting indication is required.
Each digit contains seven LED segments arranged to form numbers from 0 to 9. The two digits can be controlled through multiplex or normal drive circuitry, depending on the selected model. This integrated construction helps maintain consistent digit spacing and alignment while reducing the number of separate components required on the PCB.
Alfa Electronic Components offers 14 Two Digit Seven Segment Display variants covering compact and medium digit heights from 0.25 inch to 0.8 inch. The range supports electronic instrument manufacturers, embedded-system developers, control-panel builders and industrial equipment companies requiring clear two-digit numeric indication.
Compact 0.25-inch, 0.28-inch, 0.3-inch, 0.36-inch and 0.39-inch models are suitable for space-constrained PCB assemblies, portable instruments, compact control modules and embedded electronic devices. The popular 0.56-inch size offers a practical balance between product dimensions and readability for counters, timers, controllers and panel instruments. Larger 0.8-inch displays are suitable for equipment panels and applications requiring improved visibility.
Multiplex and Normal Drive Options
Most variants use multiplex driving, where the digits are activated sequentially at a speed that makes them appear continuously illuminated. Multiplex driving can reduce the number of control connections and is commonly used with microcontrollers and display-driver circuits.
Selected 0.56-inch and 0.8-inch models are also available with normal drive configurations. The correct drive mode must be selected according to the circuit design, pin requirement and display-control method.
Common Anode and Common Cathode Options
The range is available in both Common Anode and Common Cathode configurations. In a Common Anode display, the LED anodes share a common connection. In a Common Cathode display, the cathodes share a common connection.
These configurations are not automatically interchangeable. Buyers should match the polarity with the intended driver circuit before finalizing the display.
Decimal-Point Configurations
Most variants include two decimal points, enabling applications such as measurements, settings and formatted numeric readouts. The compact 0.25-inch model is supplied without a decimal point. The required decimal-point arrangement should be confirmed before PCB layout and production.
Consolidated Product Range
This parent listing presents all 14 available variants in one place for convenient technical evaluation. Buyers can use the variant grid to identify the appropriate digit height, body dimensions, pin count, decimal-point configuration, drive mode and polarity for their application.
