Diodes Incorporated B280BE-13

Overview

B280BE-13 from Diodes Incorporated is a 2.0A, 80V high-voltage Schottky barrier rectifier in SMB package, featuring 0.79V max forward voltage at 2.0A and 7μA max reverse leakage at 25°C. It serves as a low-loss freewheeling or polarity protection diode in DC-DC converters and AC-DC front-ends operating up to +150°C junction temperature.

For engineers reviewing the B280BE-13 datasheet, B280BE-13 pinout, B280BE-13 application, or B280BE-13 equivalent, this device is selected for high-frequency switching power supplies requiring low VF, tight thermal resistance (RθJA = 100°C/W), and RoHS-compliant lead-free plating with cathode band polarity marking.

Technical Context

This Schottky rectifier uses guard ring die construction to enhance transient voltage immunity and supports automated SMT assembly. Its low forward voltage drop and fast recovery (inherent to Schottky architecture) minimize conduction loss in high-frequency inverters and free-wheeling paths.

Rated for 80V peak repetitive reverse voltage and 50A non-repetitive surge current, it operates across –65°C to +150°C with thermal resistance junction-to-case of 50°C/W (SMB), enabling reliable performance in compact, thermally constrained PCB layouts.

Key Specifications

Pinout & Package

Package: SMB (Surface-Mount Small Outline Diode), molded plastic case with matte tin-plated terminals, UL 94V-0 rated, cathode indicated by band.

Key Features

Applications

Availability

B280BE-13 is available at Aetrix Electronics and suitable for DC-DC converters, polarity protection circuits, and AC-DC auxiliary supplies requiring stable component supply with full traceability and long-term lifecycle support.

Supply support for B280BE-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-efficiency power management and signal integrity solutions for industrial, computing, and consumer markets.

The B280BE-13 belongs to Diodes' high-voltage Schottky rectifier product line, engineered for low-loss, high-reliability operation in switching power supplies and protection circuits demanding extended temperature range and green compliance.

FAQ

What is the maximum junction temperature for continuous operation of B280BE-13?

The B280BE-13 has an operating junction temperature range of –65°C to +150°C. For continuous 2.0A operation in SMB package, thermal design must ensure TJ does not exceed +150°C - typically requiring ≤70°C ambient with ≥1 cm² 2-oz copper pad per datasheet derating curve (Figure 4).

Is B280BE-13 compatible with lead-free reflow soldering profiles?

Yes. B280BE-13 features matte tin finish terminals and meets J-STD-020 moisture sensitivity Level 1. It is qualified for standard Pb-free reflow profiles with peak temperatures up to 260°C, provided preheat and soak times comply with JEDEC specifications.

How does the guard ring construction improve reliability in real-world applications?

The guard ring die structure reduces electric field crowding at the silicon edge, increasing resistance to avalanche-induced degradation during voltage transients. This extends operational life in automotive and industrial environments where load dump or inductive switching surges occur.

Can B280BE-13 replace B280AE-13 in existing designs?

Yes, with mechanical layout adjustment. Both share identical electrical specs (80V, 2.0A, 0.79V VF), but B280BE-13 uses SMB package (larger, lower RθJA = 100°C/W) versus SMA (RθJA = 110°C/W). PCB footprint and thermal relief must be updated to accommodate SMB dimensions.