Quantity   Component name
1 × TTP223 SOT23-6 Chip Capacitive Switch circuit
1 × Q1 FMMT617-625 SOT23 Transistor or equivalent 3A NPN Transistor
1 × D1 1N4148W SOT123 (optional)
1 × BZX BZX84 4.7V or 5.1V SOT23
1 × R1 Resistor 2k2 1206
1 × R2 Resistor 1k5 1206
1 × C1 Capacitor 100nF 1206
1 × C2 Capacitor 22pF 1206 (optional)