140-piece assortment of 1/2W (0.5W) Zener diodes designed for fast prototyping and reliable small-circuit protection. Why you need it Saves time and reduces interruptions: one kit contains 14 common voltages so you don’t have to order individual parts when testing or debugging. Reliable regulation and protection: 0.5W Zener diodes provide stable clamp and reference behavior for low-power circuits and prototype boards. Organized for speed: values are grouped so you can quickly pick the voltage you need and drop parts into breadboards or perf boards. Key benefits Quick value selection: 10 diodes per voltage across 14 standard values (3.3V to 30V) for consistent backups and replacement parts. Consistent performance: matched to typical small-signal Zener characteristics suitable for voltage regulation, reference generation, and input clamping. Ready for prototyping: compact, low-power rating makes these diodes easy to use in test rigs, development boards, and experimental circuits. Practical features and specifications Power rating: 0.5W (1/2W) Voltages: 14 standard values spanning 3.3V to 30V Quantity: 140 pieces total — 10 pieces per voltage Typical uses: voltage regulation, reference sources, and transient/clamp protection in low-power designs Specific use scenarios Stabilize a microcontroller or sensor supply on a breadboard: use a Zener to clamp a test supply rail during debugging or sensor calibration. Protect ADC or GPIO inputs: clamp incoming signals to prevent spikes or overvoltage when experimenting with unknown sources or external modules. Build a stable reference for comparators or op amp experiments: create simple threshold circuits or bench references without sourcing individual parts. What’s included 140 Zener diodes (0.5W), covering 14 voltages from 3.3V to 30V, 10 pieces per value This assortment keeps essential Zener voltages on hand so you can prototype faster, replace parts quickly, and focus on design and testing rather than sourcing components.