The size of a PCB (Printed Circuit Board) card can vary, but the most common depth is 160 mm (6.299 inches).
While 160mm is the most prevalent, PCB card sizes are often standardized in increments, specifically relating to depth. Here's a breakdown of common PCB card depths:
- Standard Depths:
- 100 mm (3.937 in)
- 160 mm (6.299 in) - Most Common
- 220 mm (8.661 in)
- 280 mm (11.024 in)
- 340 mm (13.386 in)
- 400 mm (15.748 in)
These depths are typically used in modular systems where cards are inserted into a rack or chassis. The width and height can vary depending on the specific application and standard.
The above sizes adhere to the Eurocard standard and are designed for industrial and telecommunications applications. The availability of compatible hardware like card cages and backplanes support the use of these standardised sizes.
In summary, while a PCB card can be many sizes, 160mm is the most common depth.