Diodes Incorporated B220BE-13

Overview

B220BE-13 from Diodes Incorporated is a 20 V, 2 A surface-mount Schottky barrier rectifier in SMB package, featuring 0.46 V max forward voltage at 2 A and 0.1 mA max reverse leakage at 20 V/25°C. It serves as a low-loss, high-temperature-stable rectifier in DC-DC boost stages, blocking paths, and flyback recirculation loops in industrial power supplies and LED drivers.

For engineers reviewing the B220BE-13 datasheet, B220BE-13 pinout, B220BE-13 application, or B220BE-13 equivalent, key selection criteria include forward voltage drop at rated current, high-temperature reverse leakage stability, thermal resistance (R_θJA = 90°C/W), SMB package footprint compatibility, and RoHS/Green compliance for automated assembly.

Technical Context

This Schottky rectifier uses a planar metal-silicon junction optimized for low VF and controlled IR drift over temperature. Its 20 V V_RRM rating targets low-voltage DC-DC conversion where fast switching and minimal conduction loss are critical.

Thermal performance is defined by R_θJC = 40°C/W and R_θJA = 90°C/W on standard FR-4 PCBs, enabling reliable 2 A continuous operation up to +125°C ambient when properly laid out. The cathode-band polarity marking ensures unambiguous orientation during placement.

Key Specifications

Pinout & Package

SMB package: 2-terminal surface-mount device with molded plastic body, matte tin-plated copper leadframe, and visible cathode band marking. Dimensions: 4.06–4.57 mm (L) × 3.30–3.94 mm (W) × 1.96–2.21 mm (H). Polarity indicated by cathode band on top surface.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SB220-E3/52 and SS22, B220BE-13 delivers the lowest verified V_F (0.46 V) and tightest I_R (0.1 mA) in its class, making it optimal for thermally constrained or high-reliability industrial power stages.

Availability

B220BE-13 is available at Aetrix Electronics and suitable for industrial power supplies, LED drivers, and embedded DC-DC converters requiring stable component supply, RoHS/Green compliance, and SMB footprint consistency.

Supply support for B220BE-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, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.

B220BE-13 belongs to Diodes' general-purpose Schottky rectifier product line, engineered for high-efficiency, low-VF rectification in cost-sensitive and thermally demanding power conversion applications.

FAQ

What is the maximum junction temperature for continuous operation?

The B220BE-13 has an operating junction temperature range of –55°C to +150°C. With R_θJA = 90°C/W and 2 A DC current producing ≤0.92 W power dissipation, the junction rise is ~83°C above ambient-allowing full-rated operation up to +67°C ambient for T_J ≤ 150°C. Derating per Figure 4 applies beyond that point.

Is B220BE-13 suitable for automotive applications?

B220BE-13 is not AEC-Q200 qualified. While its –55°C to +150°C operating range meets automotive under-hood temperature requirements, it lacks the stress testing, lot traceability, and failure rate validation required for automotive safety-critical systems. Use only in non-safety automotive subsystems after full system-level qualification.

How does the SMB package compare to SMA for thermal performance?

The SMB package offers R_θJA = 90°C/W versus SMA's 95°C/W, and R_θJC = 40°C/W versus SMA's 45°C/W-delivering measurably better heat transfer to PCB copper. SMB's larger footprint (4.57 mm × 3.94 mm vs. SMA's 4.60 mm × 2.92 mm) provides greater thermal pad area, supporting higher sustained current in space-constrained layouts.

Can B220BE-13 replace B220AE-13 in existing designs?

Yes-B220BE-13 is the SMB-package variant of B220AE-13 (SMA), sharing identical electrical specifications (V_RRM, I_O, V_F, I_R). Mechanical redesign is required due to different footprint and thermal pad dimensions, but no circuit revalidation is needed if PCB layout accommodates SMB's larger body and adjusted pad geometry.