diff --git a/Appendix-A:-Printed-circuit-boards.md b/Appendix-A:-Printed-circuit-boards.md
index 2fe8c32..3166664 100644
--- a/Appendix-A:-Printed-circuit-boards.md
+++ b/Appendix-A:-Printed-circuit-boards.md
@@ -51,7 +51,7 @@ Here's a complete list of components:
 - 1x **SIDELED-A67F** *(amber 617nm discrete indication LED, 2V)*
 - 1x **ECS-160-12-30B-AGM** *(16MHz ±25ppm crystal, 12pF, 50 Ohms, no lead)*
 - 1x **ATMEGA32U4RC-AU** *(Atmel microcontroller, 44TQFP)*
-- 5x **D2LS-21** *(compact surface-mounting switch for long durability)*
+- 5x **TS20100F070S** *(compact surface-mounting switch for long durability)*
 - 1x **Atmel_ICSP** *(6-pin 0.100" ICSP header)*
 - 2x capacitor, 10uF, 25V, 0805, X5R or better
 - 2x capacitor, 1uF, 25V, 0805, X5R or better