U3B-M3/57T

Single Diodes Overview

The U3B-M3/57T is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division. It features a maximum repetitive peak reverse voltage of 100 V and an average forward rectified current of 2 A. The device utilizes a DO-214AB (SMC) surface-mount package. Key electrical characteristics include a maximum DC reverse leakage current of 5 µA at 100 V and a maximum DC forward voltage drop of 0.9 V at 3 A. The component supports a junction temperature range from -55°C to +150°C.

Single Diodes Feature Summary

• Surface-mount construction in a DO-214AB (SMC) package for automated assembly
• General-purpose rectification capability with high thermal stability
• Low forward voltage drop for improved efficiency
• High surge current handling capacity

Single Diodes Applications

• AC-to-DC converter circuits
• Power supply rectification stages
• General-purpose freewheeling applications
• Battery charging circuit protection

Single Diodes Procurement Notes

Verify the specific suffix /57T corresponds to the required tape-and-reel packaging configuration, as Vishay offers multiple packaging options for this base part number. Confirm RoHS compliance status and manufacturing origin details against the latest datasheet revision. Ensure the ordering quantity aligns with standard reel sizes to avoid cut-tape premiums or minimum order constraints during procurement.

Single Diodes Selection Notes

Select this component when a 100 V rating and 2 A continuous current are sufficient for the application. Consider the SMC package size for board space constraints compared to smaller SMA or larger DO-201AD packages. Evaluate the thermal management requirements based on the 150°C junction limit and expected ambient temperatures. Compare forward voltage specifications against alternative brands if low-loss performance is critical.

Single Diodes Part Context

This part belongs to Vishay's U-series of general-purpose silicon rectifiers. These devices are designed for broad industrial and consumer electronics applications requiring reliable rectification. The M3 suffix indicates lead-free termination and RoHS compliance, while the /57T suffix typically denotes specific tape-and-reel packaging for surface-mount technology integration.

Single Diodes Replacement Considerations

Publicly confirmed substitute part numbers include U3B-M3/9AT and similar variants within the Vishay U-series offering different packaging formats. Cross-reference electrical parameters such as reverse voltage, forward current, and package dimensions before substitution.