... .71VZener Voltage(Max): 4.70VZener Voltage Tolerance: +/-5%Maximum Zener Impedance at 20mA: 23ohmMaximum Zener Impedance at 0.25mA: 1900ohmMax Reverse Leakage Current ... ,MMSZ5256B,MMSZ5257B,MMSZ5258B,MMSZ5259B***Some other Zener Diode we specialize in:Mini-MELF (Glass case) 0.5W 2V-200V (ZMM2V0-ZMM200)MELF (Glass case ...