Diodes Incorporated SBRT3M30LP-7

Overview

SBRT3M30LP from Diodes Incorporated is a 30 V, 3 A Trench Super Barrier Rectifier (SBR) in a U-DFN3030-8 package, optimized for low forward voltage (0.49 V max at 3 A, 25°C) and ultra-low reverse leakage (0.02 mA max at 30 V, 25°C). It serves as a high-efficiency freewheeling or polarity protection diode in compact DC-DC converters and AC-DC adapters.

For engineers reviewing the SBRT3M30LP datasheet, SBRT3M30LP pinout, SBRT3M30LP application, or SBRT3M30LP equivalent, key selection criteria include its 16 ns reverse recovery time, 7 °C/W junction-to-case thermal resistance with enhanced PCB pad layout, and stable leakage performance up to +175°C junction temperature.

Technical Context

This TrenchSBR rectifier uses proprietary trench-based super barrier technology to achieve lower VF and IR than conventional Schottky diodes while maintaining higher breakdown ruggedness. Its 30 V VRRM rating and 30 A IFSM surge capability support robust operation in transient-prone power rails.

The device is characterized for two thermal conditions: RθJA = 76 °C/W with 1-inch² copper pad (Note 6), enabling higher continuous current in thermally optimized layouts, and RθJC = 7 °C/W for direct heatsink coupling-critical for high-density power stage design.

Key Specifications

Pinout & Package

Package: U-DFN3030-8 - 3.0 mm × 3.0 mm × 0.6 mm molded plastic package with exposed thermal pad; RoHS-compliant, halogen-free, moisture sensitivity level 1.

Key Features

Applications

Availability

SBRT3M30LP is available at Aetrix Electronics and suitable for AC-DC adapters, DC-DC converters, and polarity protection circuits requiring stable component supply, high-temperature reliability, and compact footprint.

Supply support for SBRT3M30LP 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, specializing in high-performance power management, signal integrity, and protection solutions.

The TrenchSBR product line delivers superior forward voltage and leakage performance over conventional Schottky diodes, targeting high-efficiency, high-reliability power conversion in space-constrained applications.

FAQ

What is the thermal pad connection requirement for SBRT3M30LP?

The exposed cathode pad (pins 5–8) must be soldered to a minimum 1-inch² copper area on the PCB to achieve the 76 °C/W RθJA rating. Thermal vias to internal ground planes are recommended to maintain junction temperature below 125°C at 3 A continuous load.

How does SBRT3M30LP compare to standard Schottky diodes in high-temperature operation?

At 125°C, SBRT3M30LP maintains IR < 0.1 mA at 30 V, whereas typical 30 V Schottkys exceed 1 mA. Its trench barrier structure eliminates thermal runaway, enabling reliable operation up to +175°C TJ - critical for under-hood automotive and industrial environments.

Can SBRT3M30LP be used in synchronous rectification circuits?

Yes - its 16 ns tRR and low VF make it suitable as a control-driven freewheeling diode in quasi-resonant or adaptive synchronous rectification controllers. It is not a MOSFET-based SR device but provides predictable timing and low loss when driven by external gate signals.

Is SBRT3M30LP pin-compatible with other U-DFN3030-8 diodes?

No - SBRT3M30LP has anode-only pins 1–4 and cathode-only pins 5–8, with no mixed-function pins. Pin compatibility requires identical terminal assignment; alternate U-DFN3030-8 diodes may use different pinouts (e.g., center-anode or dual-cathode configurations), so layout verification is mandatory.