Diodes Incorporated S5AC-13

Overview

S5AC-13 from Diodes Incorporated is a 5.0A, 50V glass passivated surface-mount rectifier diode in SMC (DO-214AB) package, featuring 1.15V max forward voltage at 5.0A, 100A non-repetitive surge rating, and RoHS-compliant matte tin plating - used in AC/DC input stage rectification for industrial power supplies and LED drivers.

For engineers reviewing the S5AC-13 datasheet, S5AC-13 pinout, S5AC-13 application, or S5AC-13 equivalent, key selection criteria include peak repetitive reverse voltage (50V), average forward current (5.0A @ T_T = +75°C), thermal resistance (10°C/W), surge capability (100A @ 8.3ms), and SMC package compatibility with automated assembly.

Technical Context

This device operates as a unidirectional silicon junction rectifier optimized for high-current, low-loss AC-to-DC conversion. Its glass passivated die construction ensures stable reverse leakage (<10µA @ 25°C, <250µA @ 125°C) and robust surge immunity up to 100A (8.3ms half-sine).

The SMC package enables efficient heat dissipation via PCB copper pads (5.0mm², 0.013mm thick), supporting continuous operation up to +150°C junction temperature while maintaining 10°C/W junction-to-terminal thermal resistance.

Key Specifications

Pinout & Package

Package: SMC (DO-214AB), molded plastic case with UL 94V-0 flammability rating, cathode indicated by band or notch, weight ≈ 0.21 g.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MUR550E and VS-50SQ040, S5AC-13 offers superior voltage margin for universal-input designs, lower leakage than Schottkys at high temperature, and cost-effective standard recovery performance without ultrafast complexity or voltage compromise.

Availability

S5AC-13 is available at Aetrix Electronics and suitable for industrial AC/DC power supplies, LED driver input stages, automated assembly power modules, and DC motor drive input stages requiring stable component supply across multi-year production cycles.

Supply support for S5AC-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 and manufacturing operations across Asia and the US.

The S5AC-13 belongs to the S5x series of general-purpose rectifiers designed for cost-sensitive, high-reliability AC/DC front-end applications in industrial, lighting, and appliance markets.

FAQ

What is the maximum junction temperature for S5AC-13?

The absolute maximum junction temperature is +150°C, with continuous operation supported from –65°C to +150°C. Derating begins at +75°C terminal temperature per Fig.1; at +125°C terminal, average forward current drops to approximately 2.5A.

Is S5AC-13 suitable for use in a full-wave bridge configuration?

Yes - S5AC-13 is commonly used as one quadrant in discrete full-wave bridge rectifiers. Four devices provide 5.0A output with shared thermal management; ensure symmetrical PCB copper pour and avoid exceeding 10°C/W effective thermal resistance per device.

Does S5AC-13 require a heatsink in typical applications?

No external heatsink is required when mounted on a 5.0mm² copper pad per datasheet Note 5. At 5.0A and 25°C ambient, junction temperature rises ~50°C above ambient; larger copper areas or forced air may be needed above 3.5A in enclosed environments.

How does the SMC package compare to SMB in terms of current handling?

SMC (DO-214AB) has ~30% larger copper pad area and lower R_θJT (10°C/W vs. ~15°C/W for SMB), enabling 5.0A continuous current vs. ~3.0A for comparable SMB rectifiers - making SMC preferred for higher-power, thermally constrained layouts.