Zener Diode (4.7V) 0.5W 5pcs

The Zener Diode (4.7V) 0.5W is a through-hole Zener diode with a breakdown voltage of 4.7 V and a power rating of 0.5 W, sold in a pack of 5. Used in reverse bias with a series resistor, it holds the voltage across it at about 4.7 V, which makes it useful for simple voltage references, clamping signals so they stay below 5 V and building small low-current regulators.

Zener Diode (4.7V) 0.5W Specifications

• Zener voltage: 4.7 V (nominal)
• Power rating: 0.5 W (500 mW)
• Maximum Zener current: about 106 mA in theory (0.5 W ÷ 4.7 V); stay well below this in practice
• Type: Zener diode, through-hole
• Polarity: cathode marked with a band
• Pack size: 5 pieces

Zener Diode (4.7V) 0.5W Applications

• Protecting 5 V microcontroller inputs from overvoltage, together with a series resistor
• 4.7 V voltage references
• Simple shunt regulators from a 9 V battery for low-current circuits
• Clamping signal lines and sensor outputs
• Electronics labs on diode characteristics

What's in the Box

• 5 × 4.7 V 0.5 W Zener diodes

Tip: Connect the cathode (band end) to the positive side so the diode is reverse biased, and always use a series resistor: R = (Vin − 4.7 V) ÷ I. For example, from a 9 V supply at 10 mA use about 430 Ω.

Orders placed before 14:00 are ready for pickup the same day. Delivery across Lebanon usually takes 1–3 working days.