Diodes Incorporated SBR3U100LP-7

Overview

SBR3U100LP-7 from Diodes Incorporated is a 3 A, 100 V ultra-low forward voltage super barrier rectifier in U-DFN3030-8 package, featuring 0.79 V VF at 3.0 A and 150°C maximum junction temperature. It delivers soft fast switching, superior reverse avalanche capability, and is optimized for high-efficiency DC/DC converters and OR-ing applications in telecom and industrial power supplies.

For engineers reviewing the SBR3U100LP-7 datasheet, SBR3U100LP-7 pinout, SBR3U100LP-7 application, or SBR3U100LP-7 equivalent, key selection criteria include forward voltage drop at rated current, thermal resistance (61°C/W), peak surge current rating (32 A), reverse leakage at 125°C, and RoHS-compliant green packaging with NiPdAu terminations.

Technical Context

This super barrier rectifier replaces conventional Schottky diodes in medium-voltage, high-current rectification where low conduction loss and robust avalanche performance are critical. Its patented structure enables lower VF than standard Schottkys while maintaining higher VRRM and improved thermal stability up to 150°C junction temperature.

The U-DFN3030-8 package provides low-profile surface-mount integration with double-sided copper PCB mounting, achieving 61°C/W junction-to-ambient thermal resistance. The device supports 32 A non-repetitive surge current under 8.3 ms half-sine conditions and exhibits only 15 µA reverse leakage at 100 V and +125°C.

Key Specifications

Pinout & Package

Package: U-DFN3030-8 - 3.0 × 3.0 mm, 0.6 mm height, 8-terminal leadless plastic package with exposed thermal pad. Terminals feature NiPdAu plating over copper leadframe for reliable solderability and corrosion resistance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SBRT3U100LP-7 and SBRT3U100LP-13, the SBR3U100LP-7 offers identical core performance but is optimized for high-volume SMT lines requiring 3000-unit reels and standard top-marking alignment-making it ideal for continuous-feed pick-and-place operations.

Availability

SBR3U100LP-7 is available at Aetrix Electronics and suitable for telecom DC/DC converters, industrial OR-ing circuits, and automotive infotainment power supplies requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant green manufacturing.

Supply support for SBR3U100LP-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, serving power management, signal integrity, and protection markets since 1964.

The SBR® Super Barrier Rectifier product line targets high-efficiency, high-reliability rectification in space-constrained power systems where Schottky limitations in voltage rating and thermal stability must be overcome.

FAQ

What is the thermal pad connection requirement for SBR3U100LP-7?

The exposed thermal pad is electrically connected to the cathode and must be soldered to a dedicated PCB copper pour tied to the cathode net. A minimum 75 mm² 2 oz. copper area is required to achieve the specified 61°C/W RθJA. Thermal vias under the pad are recommended for enhanced heat transfer to inner layers.

Does SBR3U100LP-7 require a heatsink in typical applications?

No external heatsink is required when mounted per datasheet layout guidelines: 75 mm² 2 oz. copper pad on both sides of a double-layer PCB. At 3.0 A and +25°C ambient, junction temperature remains below 100°C. Derating begins above +75°C ambient, per Fig. 5 in DS30998 Rev. 9-2.

How does SBR3U100LP-7 compare to standard Schottky rectifiers at 100 V?

Unlike standard Schottkys limited to ≤60 V, SBR3U100LP-7 achieves 100 V VRRM with 0.79 V VF at 3 A-matching or beating 60 V Schottkys in forward loss while adding reverse avalanche ruggedness and 150°C operation. It avoids the high IR and thermal runaway risks of high-voltage Schottkys.

Is SBR3U100LP-7 suitable for use in life support equipment?

No. Per Diodes Incorporated's Life Support Notice, SBR3U100LP-7 is not authorized for use in life support devices or systems without express written approval from Diodes' CEO. Its qualification excludes safety-critical medical applications involving implantation or sustaining human life.