Diodes Incorporated S3DB-13-F

Overview

S3DB-13-F from Diodes Incorporated is a 3.0A, 200V peak repetitive reverse voltage (VRRM), glass passivated surface-mount rectifier in SMB package, featuring 1.15V forward voltage at 3.0A, 100A non-repetitive surge capability, and RoHS-compliant matte tin plating-used in AC/DC front-end rectification for industrial power supplies and LED drivers.

For engineers reviewing the S3DB-13-F datasheet, S3DB-13-F pinout, S3DB-13-F application, or S3DB-13-F equivalent, key selection criteria include VRRM rating, IF(AV) derating behavior above +75°C, thermal resistance (RθJT = 10°C/W), reverse leakage at +125°C (250 µA), and SMB footprint compatibility with automated SMT assembly.

Technical Context

This device operates as a single-phase, half-wave silicon rectifier optimized for resistive or inductive loads at 60Hz. Its glass passivated die construction ensures stable junction integrity under thermal cycling and humidity exposure, while the SMB package provides defined thermal path to PCB copper pad (5.0 mm², 0.013 mm thick).

Electrical performance is characterized at TA = +25°C unless specified; forward voltage is measured at IF = 3.0A, and reverse current is specified at rated DC blocking voltage (VR = 200V) and elevated temperature (+125°C), supporting reliable operation in thermally demanding environments.

Key Specifications

Pinout & Package

Package: SMB (Surface-Mount Small Outline), molded plastic case per UL 94V-0, cathode indicated by band on top surface. Terminal plating: lead-free matte tin, solderable per MIL-STD-202 Method 208.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STPS3L200SB and SS320, S3DB-13-F delivers superior surge robustness (100A vs. 80A) and thermal performance (10°C/W vs. 12°C/W), making it optimal for mains-connected equipment where transient immunity and thermal headroom are prioritized over minimal conduction loss.

Availability

S3DB-13-F is available at Aetrix Electronics and suitable for industrial AC/DC power supplies, LED driver input stages, and consumer appliance power modules requiring stable component supply across multi-year production cycles.

Supply support for S3DB-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.

S3DB-13-F belongs to the S3x/B series of general-purpose surface-mount rectifiers designed for cost-effective, high-reliability AC/DC conversion in industrial, lighting, and appliance applications where robust surge handling and thermal stability are essential.

FAQ

What is the maximum allowable junction temperature for S3DB-13-F?

The absolute maximum junction temperature is +150°C, as specified in the Thermal Characteristics table. Operation at this limit requires strict thermal design: RθJT = 10°C/W implies ≤75°C terminal temperature rise at 3.0A, so ambient + heatsink contribution must stay within 75°C to avoid exceeding TJ(max). Derating curves in Figure 1 confirm 2.0A max at +100°C ambient with standard mounting.

Can S3DB-13-F replace S3D-13-F in an existing design?

Yes-S3DB-13-F (SMB package) and S3D-13-F (SMC package) share identical electrical specifications (200V VRRM, 3.0A IF(AV), 1.15V VFM), but differ mechanically: SMB measures ~3.6 × 4.3 mm vs. SMC's ~6.0 × 6.8 mm. PCB footprint and thermal pad area must be updated; no circuit-level changes are needed if layout accommodates the smaller SMB outline.

Is S3DB-13-F suitable for capacitance-input filter applications?

No-it is explicitly derated by 20% for capacitance-input loads per the datasheet. At 3.0A average rating, use is limited to 2.4A in such configurations due to higher peak currents and RMS heating. For capacitor-input designs, consider higher-rated alternatives like S5DB-13-F (5A) or verify thermal margin with worst-case ripple current simulation.

Does S3DB-13-F meet automotive AEC-Q101 requirements?

No-S3DB-13-F is not AEC-Q101 qualified. It is rated for industrial temperature range (-65°C to +150°C) and RoHS compliance, but lacks the stress testing, failure analysis, and traceability required for automotive applications. For AEC-Q101 rectifiers, Diodes Incorporated offers the B1100Q series or SBxx-13-FQ variants.