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Product Detailed Parameters
- Description：DIODE ARRAY SCHOT 30V 200MA UMD4
- Series：-
- Mfr：Rohm Semiconductor
- Package：Tape & Reel (TR),Cut Tape (CT)
- Diode Configuration：2 Independent
- Technology：Schottky
- Voltage - DC Reverse (Vr) (Max)：30 V
- Current - Average Rectified (Io) (per Diode)：200mA
- Voltage - Forward (Vf) (Max) @ If：500 mV @ 200 mA
- Speed：Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr)：-
- Current - Reverse Leakage @ Vr：30 µA @ 10 V
- Operating Temperature - Junction：125°C (Max)
- Mounting Type：Surface Mount
- Package / Case：SC-82A, SOT-343
- Supplier Device Package：UMD4
- Grade：-
- Qualification：-
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Overview
The RB481KTL is a Schottky barrier diode manufactured by ROHM Semiconductor, designed for low current rectification applications. It features a dual line configuration housed in an UMD4 package (SOT-343/SC-82). Key electrical specifications include a reverse voltage of 30V and an average rectified forward current of 0.2A. The device exhibits a maximum forward voltage of 0.5V at 0.2A and a maximum reverse current of 0.03mA at 10V. It supports a junction temperature up to 125°C and operates within a storage temperature range of -40°C to 125°C.
Feature Summary
- Dual line configuration for compact circuit design
- Low forward voltage characteristics for efficiency
- High reliability construction suitable for signal applications
Applications
- Low current rectification circuits
- Signal processing applications requiring fast switching
- General purpose diode functions in consumer electronics
Procurement Notes
Verify the supply status carefully before procurement, as this component is designated as Not Recommended for New Designs. Confirm that the ordering part number matches the specific requirement, typically RB481KTL. Ensure compatibility with existing designs rather than initiating new development. Check for RoHS compliance documentation if required by specific project standards.
Selection Notes
Select this component only for maintenance or existing product support where the UMD4 package and dual line configuration are mandatory. Evaluate the 30V reverse voltage and 0.2A current limits against circuit requirements. Consider the 125°C junction temperature limit for thermal management. This part is not suitable for new designs due to its discontinued status.
Part Context
The RB481KTL belongs to ROHM's Schottky barrier diode family, specifically engineered for small signal and low power rectification. It utilizes a plastic mold type package to minimize footprint while maintaining electrical performance. The dual line setup allows for two independent diodes in a single compact housing, optimizing board space in dense electronic assemblies.
Replacement Considerations
The RB521SM-30T2R is listed as a similar specification replacement. Note that it uses an EMD2 package (SOD-523) instead of UMD4, has a single configuration rather than dual, and offers a higher junction temperature rating of 150°C. Verify pinout and physical dimensions before substitution.
