RB481YT2R

Overview

The RB481YT2R is a Schottky barrier diode manufactured by ROHM Semiconductor, designed for low current rectification applications. It features a dual line configuration with two independent elements housed in an EMD4 (SOT-543) surface-mount package. The device supports AEC-Q101 automotive standards and operates with a reverse voltage of 90V and an average rectified forward current of 0.1A. Key electrical parameters include a maximum forward voltage of 0.61V at 0.1A and a maximum reverse current of 0.1mA at 90V. The junction temperature rating is 125°C, with a storage temperature range from -40°C to 125°C.

Feature Summary

• Ultra-small plastic mold type construction for compact circuit designs.
• Low forward voltage characteristic for improved efficiency.
• High reliability suitable for demanding environments.

Applications

• Low current rectification circuits
• Automotive electronic systems requiring AEC-Q101 compliance

Procurement Notes

Verify the specific ordering suffix, as the base model RB481Y may correspond to different packaging or tape specifications than the T2R variant. Confirm availability status directly with the manufacturer or authorized distributors, as certain variants may be discontinued or not recommended for new designs. Ensure the component meets the required RoHS compliance standards for the target application region.

Selection Notes

Select this component when a dual Schottky diode in a small SOT-543 package is required for low-voltage, low-current applications. Consider the 90V reverse voltage rating and 0.1A current limit against circuit demands. Verify that the 125°C junction temperature rating aligns with the thermal environment. Compare with single-element alternatives if only one diode is needed to optimize board space.

Part Context

The RB481Y series represents ROHM's lineup of ultra-small Schottky barrier diodes. These components are engineered for high reliability and low forward voltage drop. The series includes various voltage ratings and configurations, catering to general-purpose rectification needs in consumer electronics and automotive applications where space constraints and efficiency are critical design factors.

Replacement Considerations

For the RB481K, the RB521SM-30 is listed as a replacement with similar specifications but in an EMD2 package. Verify pinout compatibility and package dimensions when substituting. Check if the alternative part number maintains the same AEC-Q101 qualification and electrical characteristics required by the original design.

FAQ

What is the package code for the RB481YT2R?

The package code is EMD4, which corresponds to the JEITA SC-107A standard and is commonly referred to as SOT-543.

Does the RB481YT2R support automotive applications?

Yes, the RB481Y series supports AEC-Q101 standards, making it suitable for automotive-grade applications.

What is the maximum forward voltage at the rated current?

The maximum forward voltage is 0.61V when measured at a forward current of 0.1A.