20mm Coin Cell Breakout w/On-Off Switch (CR2032)

Sewable CR2032 coin cell holder breakout with on/off switch and 0.1" pitch through-hole pins. Provides 3V for small portable or wearable projects.

Pinout

Logical pinout · physical placement not verified
20MM COIN CELL BREAKOUGNDONSW
  • GND
    Type · GroundVoltage · 0V
  • SW
    Type · USBVoltage · CR2032 nominal 3V
  • ON
    Type · PowerVoltage · CR2032 nominal 3V

Start wiring

3.3 V · 5 V

Adafruit lists its single-cell LiPo and Li-ion packs as 3.7 V nominal, with output reaching 4.2 V when fully charged.

Module pins: ON, GND. Schematik maps them to your board in the app.

Batteries

103 other options

9V alkaline cells, CR2032 coin cells, 3.7V LiPo packs (1000–1200mAh), 7.4V 2S LiPo, 18650 Li-ion holders (1–6 cells), AA/AAA holders in every configuration, and snap leads with barrel adapters.

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