Zener Diode (9.1V) 0.5W 5pcs

The Zener Diode (9.1V) 0.5W is a 9.1 V Zener diode with a 0.5 W power rating, sold in a pack of 5. Connected in reverse bias with a series resistor, it holds the voltage across it at about 9.1 V, which makes it useful for simple voltage references, low-current regulators and over-voltage protection in electronics projects.

Zener Diode (9.1V) 0.5W Specifications

• Zener voltage: 9.1 V
• Power rating: 0.5 W (500 mW)
• Maximum Zener current: about 55 mA (0.5 W ÷ 9.1 V), less at high temperatures
• Type: Zener diode, 2 leads, cathode marked with a band
• Pack size: 5 pieces

Zener Diode (9.1V) 0.5W Applications

• Simple voltage references around 9 V
• Low-current shunt regulators from a 12 V supply
• Clamping and protecting inputs from voltage spikes
• Voltage level detection with a transistor or comparator
• Electronics classes and lab experiments

What's in the Box

• 5 × 9.1 V 0.5 W Zener diodes

Tip: Connect the band (cathode) to the positive side and always use a series resistor. For example, from 12 V at about 10 mA, R = (12 − 9.1) ÷ 0.01 ≈ 290 Ω, so a standard 270 Ω or 330 Ω resistor works well.

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