1N4730 3.9V 1W Zener Diode – Through-Hole Voltage Reference

Same story — you need a 3.9V reference and you need it now, not next week. The 1N4730 clamps at 3.9V, handles 1 watt of power, and slots right into your board with standard through-hole leads. No guessing, no waiting. Solder it in and get back to the rest of the build

• 3.9V zener voltage for stable reference
• 1W power dissipation rating
• Part number 1N4730 — easy to cross-reference in datasheets
• Standard through-hole package for straightforward PCB or breadboard use