You need a clean 3.3V reference in your circuit and you're not about to wait six days for a marketplace listing to ship from overseas. This 1N4728 zener clamps at 3.3V, handles 1 watt of dissipation, and drops straight into your board with standard through-hole leads. Solder it in, power up, done
| brand | JAYCAR |
| part_number | 1N4728 |
| type | Zener Diode |
| zener_voltage | 3.3V |
| power_rating | 1W |
| package | Through-hole |
| category | ELECTRONICS & COMPONENTS |
| subcategory | ELECTRONIC COMPONENTS |