Diodes Incorporated B280Q-13-F

Overview

B280Q-13-F from Diodes Incorporated is a 2.0A, 80V Schottky barrier rectifier in SMB package, featuring 0.79V max forward voltage at 2.0A, 7µA max reverse leakage at 25°C, and 50A non-repetitive surge rating - deployed for polarity protection and freewheeling in low-voltage DC/DC converters and automotive body control modules.

For engineers reviewing the B280Q-13-F datasheet, B280Q-13-F pinout, B280Q-13-F application, or B280Q-13-F equivalent, key selection criteria include V_RRM margin for 24V system transients, thermal resistance (15°C/W) for board-level power dissipation, RoHS/Green compliance status, and AEC-Q101 qualification for automotive-grade reliability validation.

Technical Context

This Schottky rectifier uses guard ring die construction to suppress transient-induced avalanche breakdown and sustain 80V peak repetitive reverse voltage without snap-back behavior. Its low 0.79V forward drop at 2.0A directly reduces conduction loss in high-duty-cycle switching paths.

Thermal design is enabled by 15°C/W junction-to-terminal resistance and +150°C maximum operating temperature, supporting operation under sustained 2.0A average current when mounted on ≥1 cm² copper pour. Total capacitance remains ≤75pF at 4V reverse bias, minimizing high-frequency switching noise coupling.

Key Specifications

Pinout & Package

Package: SMB (DO-214AA), surface-mount, molded plastic with UL 94V-0 rating, cathode band marking, 0.093g weight.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SB280-E3/52 and SS28, B280Q-13-F delivers superior conduction efficiency (0.79V vs. ≥0.83V), lower leakage (7µA vs. ≥10µA), and guaranteed automotive qualification - making it optimal for thermally constrained, safety-critical, or battery-sensitive designs.

Availability

B280Q-13-F is available at Aetrix Electronics and suitable for automotive body control modules, industrial 24V power supplies, USB-C PD adapter secondary rectification, and telecom RRU bias protection requiring stable component supply and long-term lifecycle assurance.

Supply support for B280Q-13-F 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 B270Q–B2100Q series belongs to Diodes' high-reliability Schottky rectifier product line, engineered specifically for automotive and industrial power conversion where low V_F, AEC-Q101 compliance, and surge robustness are mandatory.

FAQ

Is B280Q-13-F qualified for automotive applications?

Yes. B280Q-13-F is AEC-Q101 qualified, PPAP capable, and manufactured in IATF 16949 certified facilities. It undergoes stress testing including high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), and temperature cycling per AEC-Q101 Rev D requirements.

What is the maximum junction temperature and how is it derated?

The absolute maximum junction temperature is +150°C. The forward current derating curve shows linear reduction from 2.0A at +125°C terminal temperature to zero at +150°C. Derating is based on measured R_θJT = 15°C/W and assumes terminals are held at ambient temperature.

Does B280Q-13-F have halogen-free and lead-free compliance documentation?

Yes. B280Q-13-F meets RoHS 3 (2015/863/EU), contains <900ppm bromine, <900ppm chlorine (<1500ppm total Br+Cl), and <1000ppm antimony, and carries matte tin lead-free plating. Full compliance data is published on Diodes' Green Products page and packaging datasheets.

Can B280Q-13-F replace B270Q-13-F in existing designs?

Yes, with design verification. B280Q-13-F shares identical SMB package, pinout, thermal characteristics, and electrical parameters except for increased V_RRM (80V vs. 70V). No layout or thermal changes are needed, but system-level transient testing should confirm the higher blocking voltage adds value without unintended interaction.