Diodes Incorporated SBR1M100BLP-7

Overview

SBR1M100BLP from Diodes Incorporated is a 1A, 100V Super Barrier Rectifier (SBR®) in full-bridge configuration housed in a U-DFN3030-4 package. It delivers low forward voltage (0.82 V max at 1 A, 125°C), ultra-low reverse leakage (25 µA max at 100 V, 25°C), and high thermal stability - enabling compact AC/DC front-end rectification in space-constrained power supplies.

For engineers reviewing the SBR1M100BLP datasheet, SBR1M100BLP pinout, SBR1M100BLP application, or SBR1M100BLP equivalent, key selection criteria include its 100 V peak repetitive reverse voltage, 1 A average output current rating, 0.73–0.82 V forward voltage range across temperature, 12 °C/W junction-to-case thermal resistance, and compatibility with automated SMT assembly on FR-4 PCBs.

Technical Context

This device integrates four patented Super Barrier Rectifier diodes in a monolithic full-wave bridge topology, eliminating discrete interconnect losses and layout parasitics. Its U-DFN3030-4 package features exposed thermal pad and NiPdAu-plated terminals for low-impedance solder joints and efficient heat transfer to PCB copper.

The SBR technology enables lower VF than standard Schottky diodes while maintaining superior high-temperature IR stability - critical for unregulated offline adapters and DC-DC input stages operating up to +150°C ambient. It is not AEC-Q qualified but supports industrial-grade reliability per J-STD-020 Level 1 moisture sensitivity.

Key Specifications

Pinout & Package

U-DFN3030-4 is a 4-terminal, leadless surface-mount package with an exposed thermal pad (DNC - Do Not Connect). The body measures 3.0 × 3.0 × 0.6 mm and uses NiPdAu-plated copper lead frame for solderability and thermal conduction.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar full-bridge rectifier applications.

Compared with MBR1100LP-7, SBR1M100BLP offers 4× lower IR and better VF stability above 85°C - critical for sealed enclosures. Versus GBU4K, it sacrifices current headroom for 75% smaller footprint and automated assembly - ideal for modern miniaturized AC/DC modules.

Availability

SBR1M100BLP is available at Aetrix Electronics and suitable for USB-C power adapters, industrial IoT gateways, and smart home hub power supplies requiring stable component supply, consistent parametric performance, and long-term production continuity.

Supply support for SBR1M100BLP 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, thermally robust rectifiers targeting space- and thermal-constrained AC/DC and DC/DC power conversion - specifically engineered for consumer, industrial, and computing power supplies where low VF and low IR must coexist.

FAQ

What is the maximum allowable junction temperature for SBR1M100BLP?

The absolute maximum junction temperature is +150°C, as specified in the Thermal Characteristics table. Operation at this limit requires strict thermal management - including minimum recommended pad layout (2 oz copper, 1-inch² thermal pad), and ambient derating per Figure 5. At 1 A load, TJ exceeds 150°C if TC rises above 110°C.

Is SBR1M100BLP qualified for automotive applications?

No - SBR1M100BLP is not AEC-Q101 qualified. Diodes Incorporated explicitly states that automotive-grade variants require specific change control, PPAP capability, and IATF 16949 manufacturing; this part is intended for industrial and commercial applications only.

How should the DNC pad on the U-DFN3030-4 package be handled during PCB layout?

The DNC (Do Not Connect) pad is an internal thermal slug not electrically connected to any terminal. It must be soldered to a solid copper thermal pad on the PCB for optimal heat dissipation but must remain electrically isolated from all signal and power nets - no vias or traces should connect to it.

Can SBR1M100BLP replace a discrete 1 A Schottky diode bridge like DB107?

Yes, functionally - it provides identical full-wave rectification. However, pinout differs: DB107 uses 4-pin inline TO-220 layout (AC1, AC2, +, –), while SBR1M100BLP uses U-DFN3030-4 (AC1, +, AC2, –). Layout redesign and thermal validation are required; electrical replacement is valid only if VF, IR, and thermal constraints are met.