Taiwan Semi, 56V Zener Diode 2% 500 mW SMT 2-Pin SOD-123F. Diode Configuration: Single. Mounting Type: Surface Mount. Zener Type: General Purpose. Zener Voltage Tolerance: 0.02. Test Current: 2mA. Maximum Zener Impedance: 200Ω. Maximum Reverse Leakage Current: 45nA. Length: 2.7mm. Dimensions: 2.7 x 1.7 x 1mm. Minimum Operating Temperature: -65 °C. MPN: BZT52B56 RH, Taiwan Semiconductor