Diodes Incorporated S2A-13-F

Overview

S2A-13-F from Diodes Incorporated is a surface-mount, glass-passivated general-purpose silicon rectifier diode in SMB package, rated for 50 V peak repetitive reverse voltage (VRRM), 1.5 A average forward current (I(AV)), and 50 A non-repetitive surge current (IFSM). It delivers low 1.15 V forward voltage drop at 1.5 A and exhibits only 5.0 µA peak reverse current at 25°C, making it suitable for AC/DC input rectification in compact power supplies.

For engineers reviewing the S2A-13-F datasheet, S2A-13-F pinout, S2A-13-F application, or S2A-13-F equivalent, key selection considerations include its SMB footprint compatibility, thermal resistance (RθJT = 20 °C/W), derating behavior above 25°C, and RoHS-compliant matte tin plating for lead-free reflow assembly.

Technical Context

This device operates as a single-phase, half-wave rectifier under resistive or inductive loads at 60 Hz. Its glass-passivated die construction ensures stable junction performance and enhanced moisture resistance, while the molded plastic SMB case meets UL 94V-0 flammability requirements.

Thermal management relies on PCB copper pad heatsinking (5.0 mm², 0.013 mm thick), enabling full 1.5 A conduction up to 100°C terminal temperature. Reverse leakage remains tightly controlled-5.0 µA at 25°C and 125 µA at 125°C-at rated 50 V DC blocking voltage.

Key Specifications

Pinout & Package

Package: SMB (Surface Mount Body), JEDEC DO-214AA outline; dimensions: 3.30–3.94 mm (L) × 4.06–4.57 mm (W) × 1.96–2.21 mm (H); cathode identified by band or notch.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MURS220T3G, S2A-13-F offers lower conduction loss but slower recovery; versus ES2A, it trades 0.05 V higher VF for broader distributor availability and documented long-term supply continuity at Aetrix.

Availability

S2A-13-F is available at Aetrix Electronics and suitable for AC/DC wall adapters, industrial control power supplies, and LED driver input stages requiring stable component supply, RoHS compliance, and SMB footprint consistency.

Supply support for S2A-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 and manufacturing operations across Asia and the Americas.

The S2A/A–S2M/A series targets cost-sensitive, high-volume power conversion applications where reliability, thermal robustness, and lead-free manufacturability are essential-especially in consumer, industrial, and lighting power supplies.

FAQ

What is the maximum operating temperature for S2A-13-F?

The S2A-13-F has an operating and storage temperature range of –65°C to +150°C. Its 1.5 A average forward current rating is specified at a terminal temperature (TT) of 100°C, with derating required above that point per Figure 1 in DS16004.

Is S2A-13-F compatible with lead-free reflow processes?

Yes. S2A-13-F features matte tin lead-free plating and is rated for solderability per MIL-STD-202, Method 208. It complies with J-STD-020 Level 1 moisture sensitivity and supports standard Pb-free reflow profiles without delamination or solder joint defects.

How does the SMB package compare to SMA for this diode series?

S2A-13-F uses the larger SMB (DO-214AA) package, offering higher thermal mass and 0.093 g weight versus SMA's 0.064 g. SMB provides better thermal performance (lower RθJT contribution from board interface) and mechanical robustness for automated handling, while SMA suits ultra-compact layouts.

Can S2A-13-F be used in capacitive-load circuits?

No-capacitive loads require 20% derating of I(AV) per the datasheet. For example, at full-rated 1.5 A, the device must be limited to 1.2 A when feeding a large input capacitor without inductive filtering, due to elevated peak charging currents that exceed safe surge limits.