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Power supply for the IoT in the smallest of spaces: Ten times smaller possible thanks to CeraCharge!

Power supply for the IoT from TDK

Package ten times smaller than comparable supercaps:
At 4.4 x 3.0 x 1.1 mm, TDK offers its new CeraCharge memory technology.

This is based on a solid-state lithium-based oxide multilayer battery.

Due to its chemistry, it cannot leak or explode, so no UN number is required for transport. CeraCharge is safe even in vacuum and thus offers a wide range of applications.

Can be processed via automatic placement machines
CeraCharge batteries are the same size as EIA 1812-MLCC capacitors, can be positioned on the board by common pick-and-place machines, and can be soldered in a common reflow oven.

They are more environmentally friendly than conventional batteries because they do not contain harmful materials such as heavy metals or toxic electrolytes. They are also RoHS-compatible.

Size ratios

Parallel and serial

Parallel and serial

They can be connected in parallel and series as desired and replace button cells, lithium batteries and supercaps.

Technical data

  • Operating voltage: 0 to 1.6 V
  • nominal voltage: 1,5 V
  • maximum charging voltage: 1.8 V
  • nominal capacity: 100 µAh
  • nominal discharge current: 20 µA
  • Temperature range: -20 °C to 80 °C
  • SMD package: 4.4 x 3.0 x 1.1 mm

Typical applications

Typical applications
  • Internet of Things
  • Bluetooth Beacons (e.g. 5 mA for 0.8 ms per second) e.g. Silabs BG22 BLE module
  • Real time clocks (RTC) e.g. MICROCRYSTAL RV-3032-C7 (charges with 1.75V)
  • Systems for energy harvesting
  • Medical technology
  • Wearables


More details about "Ceracharge" can be found here:


Part numbers:
B73180A0101M062 (roll with 1500 pieces)
B73180A0101M199 (Development Kit with 10 pieces)

Further information is available on request:

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