Diodes Incorporated SBR05U20LPS-7

Overview

SBR05U20LPS-7 from Diodes Incorporated is a 0.5A surface-mount Super Barrier Rectifier (SBR®) optimized for low-voltage, high-efficiency DC-DC conversion. It features a 20V peak repetitive reverse voltage (V_RRM), ultra-low forward voltage drop (0.38 V at 0.5A/25°C), 50 µA max reverse leakage at 20V/25°C, and operates up to +150°C junction temperature-enabling compact, thermally constrained power stages in automotive and industrial SMPS.

For engineers reviewing the SBR05U20LPS-7 datasheet, SBR05U20LPS-7 pinout, SBR05U20LPS-7 application, or SBR05U20LPS-7 equivalent, key selection criteria include forward voltage vs. temperature performance, soft-switching behavior for EMI reduction, thermal resistance (224°C/W on FR-4), and AEC-Q101 readiness for automotive-grade reliability validation.

Technical Context

This Super Barrier Rectifier employs Diodes' patented SBR® technology to achieve lower forward voltage than Schottky diodes while maintaining superior reverse avalanche ruggedness and higher temperature capability than standard silicon PN rectifiers. Its soft, fast switching minimizes ringing and EMI in high-frequency synchronous buck converters.

The device is rated for 6A non-repetitive surge current (8.3ms half-sine), supports 500mA average forward current with derating above 25°C ambient, and exhibits <5 µA leakage at 20V/150°C-critical for maintaining efficiency in thermally demanding environments like under-hood automotive modules.

Key Specifications

Pinout & Package

Package: X2-DFN1006-2 - 1.0 mm × 0.6 mm, 0.37 mm height, 2-terminal leadless plastic package with NiPdAu-plated terminals; moisture sensitivity level 1 (J-STD-020), UL 94V-0 rated molding compound.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar super barrier rectifier applications.

Compared with SBRT05U20LPS-7, the SBR05U20LPS-7 trades 33% lower surge rating for tighter cost control and identical thermal/electrical performance in steady-state operation; versus SD103AWS-7, it delivers measurable efficiency gain and certified automotive reliability at modest premium.

Availability

SBR05U20LPS-7 is available at Aetrix Electronics and suitable for automotive body electronics, industrial DC-DC converters, and medical power supplies requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant sourcing.

Supply support for SBR05U20LPS-7 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.

The SBR® product line delivers high-efficiency, high-reliability rectification solutions targeting automotive, industrial, and computing power systems where low V_F, soft switching, and extended temperature operation are mandatory.

FAQ

Is SBR05U20LPS-7 qualified to AEC-Q101?

Yes, SBR05U20LPS-7 is fully qualified to AEC-Q101 Rev D. Test reports cover HTSL, temperature cycling, UHAST, and mechanical shock per the standard. Qualification was performed at Diodes' IATF 16949-certified facility, and PPAP documentation is available upon request for automotive customers.

What is the thermal resistance (R_θJA) under standard PCB conditions?

R_θJA is 224°C/W when mounted on a 2" × 2", 2 oz copper FR-4 board with no thermal vias. This value assumes single-sided layout per Diodes' recommended pad footprint (X2-DFN1006-2). Adding 4–6 thermal vias beneath the exposed cathode pad can reduce R_θJA to ~140°C/W.

Can SBR05U20LPS-7 replace a standard Schottky diode in an existing design?

Yes-SBR05U20LPS-7 is a direct 2-pin drop-in replacement for Schottky diodes in X2-DFN1006-2 package (e.g., SD103AWS-7), offering lower V_F, higher T_J rating, and improved surge robustness. No layout change is needed, but verify that the lower leakage and softer switching improve EMI margins without requiring circuit re-tuning.

Does this part have a cathode marking, and how is polarity identified?

Yes-the cathode is marked with a bar on the bottom surface of the X2-DFN1006-2 package. The top surface has no visible marking; polarity must be confirmed via bottom-view inspection or automated optical inspection (AOI) using the bar feature. Pin #1 (anode) is opposite the bar side per Diodes' package drawing DS31357.