Check the listing for details. 50Pcs Zener Diode, 0.5W Surface Mount Diode Kit 5.1V LL-34. Condition: New. Listed at 8.14 USD. The zener diode can stabilize the voltage by allowing the current to vary over a large range.Specification:Type: LL-34Zener voltage: 5.1VPower Dissipation: 0.5WProduct Dimensions: 3.5 x 1.4mm/0.14 x 0.06inch(L*OD)Packing List: 50 Pcs x Surface Mount Zener DiodeAdvantage:Zener diodes have good stability, low power loss, and high efficiency.Zener Diode can be used for product development, experiments, maintenance, production, etc.Note:Please pay attention to distinguishing polarity when using it to avoid malfunction or damage.