Diodes Incorporated SBR10B45P5-13

Overview

SBR10B45P5-13 from Diodes Incorporated is a 10A, 45V advanced super barrier rectifier in the POWERDI®5 package, featuring ultra-low 0.55V forward voltage at 10A/25°C, 0.38mA reverse leakage at 45V/25°C, and thermal resistance of 93°C/W (junction-to-ambient). It serves as a high-efficiency freewheeling or polarity protection diode in compact AC-DC adapters and DC-DC converters.

For engineers reviewing the SBR10B45P5-13 datasheet, SBR10B45P5-13 pinout, SBR10B45P5-13 application, or SBR10B45P5-13 equivalent, key selection criteria include forward voltage drop at full load, high-temperature reverse leakage stability, thermal performance in constrained PCB layouts, and RoHS-compliant "Green" packaging for thin-profile power supplies.

Technical Context

The SBR10B45P5-13 employs super barrier rectifier technology to achieve lower VF than standard Schottky diodes while maintaining superior IR stability at elevated temperatures-0.38mA at 25°C rising only modestly to ~10µA at 125°C per Figure 3. Its 10A average forward current rating is derated linearly above 25°C ambient, reaching ~6.5A at 100°C.

Thermally optimized for surface-mount use, it delivers 10°C/W junction-to-case resistance and operates across –55°C to +150°C. The POWERDI5 package enables low-profile mounting (<1.1mm height) with 8kV HBM ESD rating and halogen/antimony-free green compound compliant with UL 94V-0.

Key Specifications

Pinout & Package

Packaged in the thermally efficient, low-profile POWERDI®5 (3.966 × 6.504 mm, <1.1 mm height), this two-terminal device uses a single anode-cathode configuration with exposed cathode pad for enhanced thermal dissipation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SBRT10U45SP5-13, the SBR10B45P5-13 trades 0.03V higher VF for broader availability and lower cost; versus PS1045L-13, it delivers 17°C/W better thermal resistance and full environmental compliance in half the height.

Availability

SBR10B45P5-13 is available at Aetrix Electronics and suitable for AC-DC adapters, DC-DC converters, and USB-C power delivery systems requiring stable component supply, consistent parametric performance, and RoHS-compliant green manufacturing.

Supply support for SBR10B45P5-13 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, energy-efficient components for power management, signal integrity, and protection.

The SBR® super barrier rectifier product line targets high-efficiency, high-reliability power conversion in space- and thermal-constrained applications-including consumer adapters, industrial SMPS, and automotive subsystems-where Schottky limitations in leakage and temperature stability are unacceptable.

FAQ

What is the maximum continuous forward current rating for SBR10B45P5-13 at 100°C ambient?

At 100°C ambient, the SBR10B45P5-13 is rated for approximately 6.5A average forward current, based on its linear derating curve (Figure 4). This assumes mounting on a 1-oz FR-4 PCB with adequate copper area; exceeding this requires thermal simulation or empirical validation.

Does SBR10B45P5-13 require a heatsink in typical 10W adapter applications?

No heatsink is required in standard 10W adapter designs. With RθJA = 93°C/W and 0.55V VF at 10A, power dissipation remains ~5.5W, resulting in ~510°C rise above ambient-well within the 150°C max junction temperature when mounted on ≥100 mm² 2-oz copper pour per Diodes' recommended layout.

How does the POWERDI5 package improve thermal performance compared to SMA or SMB?

The POWERDI5's exposed cathode pad provides direct thermal path to PCB copper, achieving RθJC = 10°C/W-~40% lower than SMA packages (~17°C/W). Its 93°C/W RθJA is also ~25% better than SMB-2 (125°C/W), enabling higher current density in thin-profile designs without airflow.

Is SBR10B45P5-13 suitable for automotive under-hood applications?

Yes-it is qualified for –55°C to +150°C operation and withstands 140A non-repetitive surge current, meeting requirements for infotainment and body-control module auxiliary supplies. However, it is not AEC-Q101 qualified; for safety-critical engine control, AEC-certified alternatives must be used.