Murata 10uf 0603 LOW ESR SMD Capacitor 0.25W 4.8mm Clear StrawHat Cool White LED one of which is connected

one of which is connected to an IR LED and the other to a phototransistor

Durable Contacts – Long-lasting and reliable performance even in high-load environments

drive above 1

It's not too costly

Murata 10uf 0603 LOW ESR SMD Capacitor 0.25W 4.8mm Clear StrawHat Cool White LED one of which is connectedThe GRM188R1E106MA73D is a high quality multilayer ceramic capacitor (MLCC) from Murata, designed for reliable decoupling, filtering, and noise suppression in modern electronic circuits. Featuring a stable dielectric and compact SMD package, this capacitor is ideal for space constrained applications requiring dependable electrical performance. Features High capacitance in compact SMD package Stable dielectric suitable for general purpose applications