Components, Mechanical

Jumper shunt, 2.1 mm

Battery holder, CR2032

  • Digikey: ?
  • Farnell: ?
  • Mouser: ?
  • RS: ?

Heatsink, TO-220

Heatsink, TO-220, 19x20x8.8mm, 24’C/W

  • Digikey: ?
  • Farnell: ?
  • Mouser: ?
  • RS: ?

Machine scew, M2 x 6 mm

These are used to mount the Micro SD card module in SC131 Pocket Sized RomWBW CP/M Computer.

Standoff, M2 x 10 mm

These are used to mount the Micro SD adapter module in SC131 Pocket Sized RomWBW CP/M Computer.

  • eBay

Hex version, possibly too big for SC131:

Machine screw, M3 x 6 mm

These are used with nylon spacers.

Spacer, M3 x 10 mm, nylon

These are used with M3 x 6mm machine screws.

  • Digikey: ?
  • Farnell: ?
  • Mouser: ?
  • RS: ?

Machine screw, M3.5 x 10 mm

These are used to fix the 7805 regulator to the heatsink and PCB.

Nut, M3.5

These are used with M3.5 x 10 mm machine screws.

Self-tapping, #4 x 0.25″

These are used to mount the PCB in SC131 Pocket Sized RomWBW CP/M Computer.

Cheaper alternatives:

Switches and push buttons

DIP switch, 6-way

6-way, piano style

Tactile button, angled

Tactile button/switch, SPST, 50 mA, 6 mm x 6 mm x 7 mm, 100 g (general purpose angled push button)

  • Digikey: ?
  • Farnell: ?
  • Mouser: ?
  • RS: ?

Tactile button, angled

Tactile button/switch, SPST, 50 mA, 6 mm x 6 mm x 9 mm, 100 g (SC131 reset button)

  • Digikey: ?
  • Farnell: ?
  • Mouser: ?
  • RS: ?

Tactile button, straight

Tactile button/switch, SPST, 50 mA, 9.5 mm x 6 mm, 100 g (general purpose push button)

Toggle switch, SPDT

Function: On-None-On
Current: > 1 amp (power on/off switch)

Slide switch, SPDT

Function: On-None-On
Current: > 10 mA (signals only)

Hammond 1593N case

This case is used to house SC131 Pocket Sized RomWBW CP/M Computer.

1593N case, black

1593N case, grey

1593N case, translucent blue

Homebrew 8-bit retro computing