Wireless Power Transfer November 2018 Wireless Power Transfer Tx (transmitting) coil units (WPC compliant) WT525225-20K2-A1-G

(2/3) Wireless Power Transfer Wireless Power Transfer Product compatible with RoHS directive Halogen-free Tx (transmitting) coil units (WPC compliant) Overview of WT525225-20K2-A1-G FEATURES Tx coil units for WPC low-power (5W) specification. Got WPC approval for ferrite sheet. Thinner flexible ferrite sheet type is available for durable construction. Performance had been confirmed based on WPC equipments. APPLICATION Various types of battery chargers (WPC compliant) SHAPE & DIMENSIONS 18.5(min.) 0 0 1. 1. ± ± 2 8 5 Solder coat ø43.0±1.0 x. a m 52±1.0 6 5. Dimensions in mm Magnet Sheet size Coil turns Thickness of coil + sheet Thickness of incl. I/O Coil outer size (mm) (mm) (mm)typ. (mm)typ. (mm)typ. Bond magnet 12.5×2.0 52.0×52.0 10ts x 2layers 20Ts 4.63 — ø43 ELECTRICAL CHARACTERISTICS CHARACTERISTICS SPECIFICATION TABLES WPC compliant Input voltage Inductance DC resistance Ferrite type Part No. [100kHz,1Vrms] [25°C] (V) (µH) ()max. WPC A1 and WPC A9 19 (A1)、12 (A9) 24 0.1 Solid WT525225-20K2-A1-G IC REFERENCE INFORMATION IC Manufacturer material name Web Please contact us. RoHS Directive Compliant Product: See the following for more details.https://product.tdk.com/info/en/environment/rohs/index.html Halogen-free: Indicates that Cl content is less than 900ppm, Br content is less than 900ppm, and that the total Cl and Br content is less than 1500ppm. Please be sure to request delivery specifications that provide further details on the features and specifications of the products for proper and safe use. Please note that the contents may change without any prior notice due to reasons such as upgrading. 20181127 / wlc_tx_wt525225-20k2-a1-g_en.fm

(3/3) Wireless Power Transfer Reminders Do not use or store in locations where there are conditions such as gas corrosion (salt, acid, alkali, etc.). Self heating (temperature increase) occurs when the power is turned ON, so the tolerance should be sufficient for the set thermal design. Fully caution, if metal piece contacted with top of coil surface then it could be danger of generated heat. Do not use for a purpose outside of the contents regulated in the delivery specifications. The products listed on this catalog are intended for use in general electronic equipment (AV equipment, telecommunications equip- ment, home appliances, amusement equipment, computer equipment, personal equipment, office equipment, measurement equip- ment, industrial robots) under a normal operation and use condition. The products are not designed or warranted to meet the requirements of the applications listed below, whose performance and/or qual- ity require a more stringent level of safety or reliability, or whose failure, malfunction or trouble could cause serious damage to society, person or property. If you intend to use the products in the applications listed below or if you have special requirements exceeding the range or conditions set forth in the each catalog, please contact us. (1) Aerospace/aviation equipment (8) Public information-processing equipment (2) Transportation equipment (cars, electric trains, ships, etc.) (9) Military equipment (3) Medical equipment (10) Electric heating apparatus, burning equipment (4) Power-generation control equipment (11) Disaster prevention/crime prevention equipment (5) Atomic energy-related equipment　　 (12) Safety equipment (6) Seabed equipment (13) Other applications that are not considered general-purpose (7) Transportation control equipment applications Please be sure to request delivery specifications that provide further details on the features and specifications of the products for proper and safe use. Please note that the contents may change without any prior notice due to reasons such as upgrading. 20181127 / wlc_tx_wt525225-20k2-a1-g_en.fm