Discontinuation Notice: 5-wire Resistive Touch Screen Products "FST Series" and "TSC-55 Series"
We hereby inform you that our 5-wire resistive touch screen products, “FST” and “TSC-55” Series will be discontinued as detailed below.
1. Affected Product
| Product Name | Product No. |
|---|---|
| 5-wire Resistive Touch Screen, FST Series | FST-T###C110A、FST-S###C110A |
| 5-wire Resistive Touch Screen Controller, TSC-55 Series | TSC-55/RU、TSC-55/U-L |
- *1 "#" represents a numeric digit.
2. Reason for Discontinuation
The primary material used in these touch screen products, silver (Ag) ink, will be discontinued by the supplier, making it difficult for us to ensure a stable and continuous supply of the products.
In addition, due to the discontinuation of these touch screen products, the corresponding controller product, the TSC-55 Series, will also be discontinued.
3. Successor Products
There is no successor product for the discontinued models. We kindly ask that you review your future requirements and consider placing Last Time Buy (LTB) orders to meet your anticipated demand.
For certain models, however, we recommend considering the 4-wire resistive touch screen "RST Series" as an alternative solution.
| Size | Current Products | Substitute Product *2 | Sample | Mass Production |
|---|---|---|---|---|
| 10.4 | FST-T104C110A | RST-104A080A | October, 2026 | October, 2026 |
| 12.1 | FST-T121C110A | RST-121A080A | June, 2026 | October, 2026 |
| 12.1 | FST-S121C110A | RST-121A080A | June, 2026 | October, 2026 |
| 15 | FST-T150C110A | RST-150A080A | June, 2026 | October, 2026 |
| 17 | FST-T170C110A | None | - | - |
| 19 | FST-T190C110A | None | - | - |
*2 The controller board compatible with the RST Series is the "TSC-54/RU-F" controller board. For further information regarding the RST Series, please contact our sales representative.
4. Last Order and Shipment Schedule
| FST SERIES | TSC-55 SERIES | |
|---|---|---|
| Last Order Date | December 16, 2026 (Wednesday) | June 25, 2027 (Friday) |
| Last Shipment Date | May 28, 2027(Friday) | December 24, 2027(Friday) |
*3 The last shipment date is subject to change depending on the availability of materials.
Should you have any questions regarding this change, please contact here.