Vishay Intertechnology, Inc today expanded its offering of Qi-compliant wireless charging transmitter and receiver coils with the introduction of 14 new products in industry-standard shield sizes.
Consisting of eight single-coil transmitters (Tx), three three-coil transmitters (Tx), and three single-coil receivers (Rx), the Vishay Dale products released today offer designers a source for the most popular sizes used in Qi wireless charging pads for handheld battery-powered devices. Available Tx coil types include A11, A6, MP-A9, MP-A6, MP-A4, and MP-A2.
The transmitters offer power ratings from 5 W to 15 W, while receivers feature power ratings of 3.5 W and 5 W. The RoHS-compliant coils operate over temperatures from -40 °C to +125 °C and offer inductance tolerance of +10 %. All configurations are customizable to customer specifications upon request.
Product Specification table
| Part # | Type | Power rating (W) | Inductance (µH) | Typ. Q | Typ. DCR (mΩ) | Max. DCR (mΩ) | Typ. heat rating current (A) |
| @ 100 kHz | @25 °C | ||||||
| IWTX50R0CZEB6R3KF1 | A11 Tx | 5 to 15 | 6.3 | 120 | 36 | 45 | 5 |
| IWTX50R0DZEB6R3KF1 | A 11Tx | 5 to 15 | 6.3 | 90 | 18 | 25 | 10 |
| IWTX55R0DZEB8R9KF1 | MP-A4 Tx | 15 | 8.9 | 98.5 | 47 | 55 | 6 |
| IWTX5050CZEB6R3KF1 | A 11 Tx | 5 to 15 | 6.3 | 120 | 36 | 45 | 5 |
| IWTX5050DZEB6R3KF1 | A11 Tx | 5 to 15 | 6.3 | 90 | 18 | 25 | 10 |
| IWTX5555DEEB100KF1 | MP-A2 Tx | 15 | 10 | 99 | 55 | 80 | 6 |
| IWTX9955DEEB110KF3* | MP-A6 Tx | 15 | 11.3 | 85 | 76 | 90 | 6.5 |
| IWTXA653FZEB120KF3* | A6 Tx | 5 to 10 | 11.5 / 12.5 | 123 | 60 | 80 | 6.5 |
| IWTXA148DGEB9R8KF3* | MP-A9 | 15 | 9.8 / 10.2 | – | 60 | 80 | 7.0 |
| IWTX5050DEEB100KF1 | Tx | 5 to 15 | 10 | 200 | 27 | 29.7 | 9 |
| IWTX5050FEEB100KF1 | Tx | 5 to 15 | 10 | 200 | 27 | 29.7 | 9 |
| IWAS3010AZEB130KF1 | Rx | 3.5 | 12.9 | 11 | 700 | 780 | 0.8 |
| IWAS4832AEEB120KF1 | Rx | 5 | 12 | 33 | 145 | 200 | 3 |
| IWAS4532AGEB140KF1 | Rx | 5 | 14 | – | 290 | 355 | 1.2 |
| *Three coils |
Samples and production quantities of the new wireless charging transmitter and receiver coils are available now, with lead times of 10 weeks for large orders.
Vishay Intertechnology | www.vishay.com