Würth Elektronik eiSos wireless power coils

Würth Elektronik eiSos is expanding its portfolio of wireless power-transfer products, offering two transmitter and three receiver coils that are suitable for charging wearables and mobile devices. The coils are adapted to the already existing standard chip sets for the WPC Qi standard, making it easy to use already available designs by exchanging the coils for wearables.

The WE-WPCC 760308102212 and WE-WPCC 760308102213 receiver coils are just 0.64 mm, making them suitable for use in wearables with space for relatively large coil areas (29 x 29 mm) but with strong limitations regarding their height. The broad ferrite projection of the former unit offers good shielding properties.

The inductance value used in the WE-WPCC 760308102213 product makes it a dual-standard receiver. Fitted with the corresponding receiver chip, the coil is capable of responding to transmitters that are compatible with either the WPC Qi standard or the PMA standard.

The WE-WPCC 760308101214 receiver coil is slightly thicker, measuring 0.8 mm with a diameter of 19 mm. The product is suitable for wireless power transfer in devices with only limited space. Used in conjunction with the WE-WPCC 760308101104 und WE-WPCC 760308101105 transmitter coils, it is capable of achieving good power-transfer results.