KMB120S

Overview

The KMB120S is a single-phase surface mount Schottky bridge rectifier manufactured by SMC Diode Solutions. It features a peak repetitive reverse voltage of 200 V and an average rectified output current of 2 A. The device utilizes Schottky barrier technology to achieve low forward voltage drop and high efficiency, making it suitable for automatic assembly processes. It is housed in an MBS (4-SMD,鸥翼) package with plastic terminals that are solderable per MIL-STD-202 standards. The component operates within a junction temperature range of -55°C to 150°C and includes surge overload rating capabilities.

Feature Summary

• Schottky barrier chip design for low power loss and high efficiency
• Surface mount MBS package ideally suited for automatic assembly
• Surge overload rating capability up to 50A peak
• Plastic case material with UL flammability classification 94V-0

Applications

• General purpose AC to DC conversion in compact power supplies
• Battery charging circuits requiring low forward voltage drop
• Free-wheeling diodes in DC-DC converters
• Polarity protection in electronic systems

Procurement Notes

Verify the specific ordering suffix against the manufacturer's latest datasheet N1952 to ensure correct packaging and lead time specifications. Confirm RoHS compliance status as standard versions are lead-free. Check for any recent product change notices or obsolescence alerts directly from SMC Diode Solutions before finalizing procurement plans.

Selection Notes

Select the KMB120S when a 200 V reverse voltage rating and 2 A continuous current capacity are required in a surface mount configuration. Consider its low forward voltage characteristics for applications prioritizing energy efficiency. Ensure the PCB layout accommodates the MBS package dimensions and thermal requirements for operation up to 150°C junction temperature.

Part Context

The KMB120S belongs to the KMB2 series of single-phase Schottky bridge rectifiers from SMC Diode Solutions. This series offers various voltage ratings including 60 V, 100 V, 200 V, and 250 V options, all sharing the same 2 A current rating and MBS surface mount package. The series is designed for high-efficiency rectification in space-constrained applications.

Replacement Considerations

Direct pin-compatible replacements within the same family include KMB100S (100 V) and KMB200S (200 V). Cross-manufacturer equivalents should be verified for matching current, voltage, and package dimensions. Ensure substitute components meet the same thermal and surge current specifications.