Power Supply for the IoT in the Smallest of Spaces: Ten Times Smaller Possible Thanks to CeraCharge!

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.

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

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:
https://www.tdk-electronics.tdk.com/de/ceracharge

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

Further information is available on request: