Diodes Incorporated SBL535

Overview

SBL535 from Diodes Incorporated is a 35 V, 5.0 A Schottky barrier rectifier in TO-220AC package, featuring 0.70 V forward voltage at 5.0 A and 3 °C/W thermal resistance junction-to-case, designed for low-voltage, high-frequency inverters, freewheeling diode applications, and polarity protection circuits in industrial power supplies.

For engineers reviewing the SBL535 datasheet, SBL535 pinout, SBL535 application, or SBL535 equivalent, key selection criteria include peak repetitive reverse voltage (35 V), average rectified output current (5.0 A @ TC = 95°C), forward voltage drop (0.70 V @ 5.0 A), surge capability (175 A non-repetitive), and thermal resistance (3 °C/W).

Technical Context

The SBL535 employs a Schottky barrier die with guard ring construction to enhance transient protection and reduce leakage under high reverse bias. Its low forward voltage and high surge rating support efficient energy recovery in switching power topologies.

Designed for single-phase, half-wave rectification at 60 Hz with resistive or inductive loads, it requires 20% current derating for capacitive loads. Junction capacitance is 500 pF at 4.0 V reverse bias and 1.0 MHz, supporting high-frequency operation.

Key Specifications

Pinout & Package

Package: TO-220AC - Molded plastic case with UL 94V-0 flammability rating, tin-plated terminals, and 2.3 g mass. Mounting tab (Case) is electrically connected to Pin 1 (+) terminal.

Key Features

Applications

Availability

SBL535 is available at Aetrix Electronics and suitable for industrial power supplies, motor drive protection circuits, and DC-DC converter designs requiring stable component supply and long-term BOM continuity.

Supply support for SBL535 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, signal integrity, and protection solutions for industrial, computing, and consumer markets.

The SBL5xx series belongs to Diodes' Schottky rectifier product line, engineered specifically for high-current, low-loss rectification in space-constrained, thermally demanding power conversion systems.

FAQ

Is SBL535 RoHS compliant?

Yes, SBL535 features a lead-free finish and complies with RoHS Directive 2002/95/EC (as revised August 2003), including exemptions for glass and high-temperature solder per EU Annex Notes 5 and 7. Terminal plating meets MIL-STD-202 Method 208 solderability requirements.

What is the maximum operating temperature for SBL535?

SBL535 has an operating junction temperature range of –65°C to +150°C. Its thermal resistance (RθJC = 3°C/W) allows sustained 5.0 A operation only when mounted on a heatsink maintaining case temperature ≤95°C, per the derating curve in Figure 1.

Can SBL535 be used in place of a standard silicon rectifier?

Yes, but only where its 35 V blocking voltage and Schottky characteristics are appropriate. It offers lower VFM and faster recovery than silicon diodes, but higher reverse leakage-especially above 75°C-requiring careful thermal and circuit analysis before substitution.

Does SBL535 have a built-in thermal shutdown feature?

No, SBL535 is a passive discrete diode with no integrated thermal protection. Safe operation depends entirely on external thermal design-including heatsink sizing, airflow, and PCB copper area-to maintain junction temperature within –65°C to +150°C limits.