S1MB-13-F

The S1MB-13-F from Diodes Incorporated is a 1A, 1000V general-purpose plastic rectifier diode in an SMB (DO-214AA) surface-mount package. It offers low forward voltage drop of 1.1V at 1A, reverse recovery time of 3μs, and high surge current capability of 30A. With MSL 1 rating and RoHS3 compliance, it is suitable for AC-DC rectification, reverse polarity protection, and power supply applications across automotive, industrial, and consumer electronics.

The S1MB-13-F is a standard recovery silicon rectifier diode using glass-passivated (GPP) die technology. In forward bias, current flows from anode to cathode with a voltage drop of approximately 1.1V. In reverse bias, the device blocks current up to 1000V with only 5μA leakage. When transitioning from forward to reverse bias, stored charge in the silicon must be swept out before the diode blocks, resulting in a 3μs reverse recovery time. The glass passivation provides reliable junction protection over the full -65°C to +150°C operating range.

• AC-DC bridge rectification in off-line power supplies
• Reverse polarity protection for DC input connectors
• Freewheeling diode in motor drive circuits
• Telecom line power rectification
• Automotive power distribution protection