Diodes Incorporated SBR3U30P1-7

Overview

SBR3U30P1-7 from Diodes Incorporated is a 3.0A Super Barrier Rectifier in PowerDI123 package, engineered for high-efficiency DC/DC conversion and automotive power supplies. It delivers ultra-low forward voltage (0.28V typ @ 0.5A, +25°C), 30V peak repetitive reverse voltage, and 75A non-repetitive surge current capability - enabling compact, thermally robust designs in 12V automotive systems.

For engineers reviewing the SBR3U30P1-7 datasheet, SBR3U30P1-7 pinout, SBR3U30P1-7 application, or SBR3U30P1-7 equivalent, key selection criteria include forward voltage at elevated temperature, avalanche energy rating (105 mJ), ESD robustness (±25 kV IEC61000-4-2 air discharge), and JEDEC-qualified reliability for industrial and automotive-grade deployments.

Technical Context

This Super Barrier Rectifier replaces conventional Schottky diodes in medium-voltage, high-current rectification where low VF and high surge tolerance are critical. Its patented interlocking clip design enables 75A IFSM and superior reverse avalanche capability (105 mJ EAS), while maintaining soft, fast switching to reduce EMI in synchronous buck converters.

The device operates up to +150°C junction temperature and features ±16 kV HBM and ±25 kV IEC61000-4-2 ESD protection - making it suitable for harsh environments without external transient suppression. Its PowerDI123 package provides low thermal resistance (RθJS = 5°C/W) and lead-free, halogen-free "Green" compliance per RoHS 3 and IATF 16949 manufacturing standards.

Key Specifications

Pinout & Package

Package: PowerDI123 - surface-mount, single-ended, 3-pin plastic package with exposed cathode tab for enhanced thermal dissipation and mechanical stability. Cathode indicated by band on top surface.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SBRT3U30P1-7 and MBR330LSFT1G, the SBR3U30P1-7 balances automotive-grade ruggedness (105 mJ EAS, ±25 kV ESD) with cost-effective PowerDI123 packaging - offering optimal VF/robustness tradeoff for volume automotive and industrial power supplies.

Availability

SBR3U30P1-7 is available at Aetrix Electronics and suitable for automotive body control modules, industrial DC/DC converters, USB-C power delivery adapters, and LED driver power stages requiring stable component supply across multi-year production cycles.

Supply support for SBR3U30P1-7 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® Super Barrier Rectifier product line targets high-efficiency, high-reliability power conversion in automotive, industrial, and computing applications - specifically engineered to replace Schottky diodes where low VF, high surge, and high-temperature operation are simultaneously required.

FAQ

Is SBR3U30P1-7 qualified for automotive applications?

Yes - SBR3U30P1-7 is JEDEC-qualified and meets AEC-Q101 stress test requirements. While not branded with a Q-suffix, it is manufactured in IATF 16949-certified facilities and supports automotive use cases including BCM, lighting, and infotainment power supplies. For formal PPAP submissions, Diodes recommends the SBRT3U30P1-7 variant.

What is the thermal performance difference between PowerDI123 and SMA packages for this device?

PowerDI123 offers RθJS = 5°C/W versus ~25°C/W for SMA - a 5× improvement in junction-to-tab thermal resistance. This allows 3.0A continuous operation at +100°C ambient on standard 2-layer PCBs, whereas SMA would require copper pours or forced airflow to sustain the same current.

Does SBR3U30P1-7 require a heatsink in typical applications?

No - the PowerDI123 package's exposed cathode tab serves as an integrated thermal interface. With proper 2 oz. copper pad layout (minimum 2.4 mm × 4.1 mm), the device dissipates up to 1.2 W at +70°C ambient without external heatsinking, covering most 3A automotive and industrial use cases.

How does the soft switching characteristic affect EMI in high-frequency converters?

Soft switching reduces di/dt during reverse recovery, lowering high-frequency ringing and conducted EMI by 8–12 dB in 300–500 kHz buck converters. This eliminates the need for RC snubbers or ferrite beads in many USB-PD and LED driver designs, simplifying layout and reducing BOM count.