[outdated?] 22mm A22-7135 (22mm 7135) v021

by Red.
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2 layer board of 0.88x0.88 inches (22.28x22.28 mm).
Shared on November 22nd, 2014 21:50.

Replacement? - https://oshpark.com/shared_projects/CUshrRzj

0805 sized resistors & caps.

Requires that the positions marked 7135-A and 7135-B have at least one 7135 populated each. Requires that the 7135 next to R2 be populated for the voltage divider to work (eg LVP).

Single-cell component list:

  • R1 - 22k 1% resistor
  • R2 - 4.7k 1% resistor
  • C1 - 5uF/10uF/whatever capacitor
  • OTC - 1uF capacitor
  • D1 - low Vf diode for polarity protection

Zener components:

  • R1 - appropriate 1% resistor
  • R2 - 4.7k 1% resistor
  • C1 - 5uF/10uF/whatever capacitor
  • OTC - 1uF capacitor
  • R3 - appropriate 0805 resistor, such as 200 ohm
  • Zener - appropriate SOD-123 zener, such as 4.3v

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