The Fairchild Semiconductor MMSZ5230B is a diode with a zener single family.

• Mounting style: Surface Mount Device (SMD)
• Operating temperature range: -55°C to 150°C
• Package: SOD-123
• Manufacturer device package: SOD-123
• Tolerance: ±5%
• Maximum power: 500mW
• Voltage forward (Vf) (Max) @ If: 900mV @ 10mA
• Current reverse leakage @ Vr: 5μA @ 2V
• Voltage zener (Nom) (Vz): 4.7V
• Impedance (Max) (Zzt): 19 Ohm
• Popularity: high
• Commonly used: in industrial applications
• Packaging: reel
• Alternative parts (cross-reference): MMSZ5230B-V-GS08 and MMSZ5230B-AU T/R13