Diodes Incorporated S2DA-13

Overview

S2DA-13 from Diodes Incorporated is a glass passivated surface-mount silicon rectifier diode in SMB package, rated for 200 V peak repetitive reverse voltage (VRRM), 1.5 A average forward current (I(AV)) at 100°C terminal temperature, and 50 A non-repetitive surge current (IFSM), used as primary AC/DC input stage rectifier in offline power supplies and adapter front-ends.

For engineers reviewing the S2DA-13 datasheet, S2DA-13 pinout, S2DA-13 application, or S2DA-13 equivalent, key selection criteria include its 1.15 V forward voltage at 1.5 A, 5 µA max reverse leakage at 25°C, 20 pF junction capacitance, thermal resistance of 20 °C/W, and compatibility with automated SMT assembly on FR-4 PCBs with standard copper pad heatsinking.

Technical Context

This device operates as a single-phase, half-wave rectifier under 60 Hz AC line conditions with resistive or inductive loads; capacitive loads require 20% current derating per datasheet guidance. Its glass passivated die construction ensures stable reverse characteristics across -65°C to +150°C operating range.

Thermal performance is defined with junction-to-terminal resistance (RJT = 20 °C/W) measured on a PCB with 5.0 mm² × 0.013 mm thick copper pads. The SMB package supports JEDEC-standard 8.3 ms half-sine surge testing up to 50 A without failure.

Key Specifications

Pinout & Package

S2DA-13 uses the SMB (DO-214AA) surface-mount package: molded plastic case, UL 94V-0 rated, cathode indicated by band marking, polarity-critical for unidirectional conduction.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MURS220T3G and 1N4007, S2DA-13 delivers optimal balance of low VF, SMB SMT compatibility, and 200 V rating for cost-sensitive, thermally constrained 60 Hz rectification-without over-specifying speed or voltage.

Availability

S2DA-13 is available at Aetrix Electronics and suitable for AC-DC adapters, industrial power supplies, LED driver front-ends, and appliance control boards requiring stable component supply and RoHS-compliant manufacturing.

Supply support for S2DA-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.

S2DA-13 belongs to the S2x/A family of general-purpose glass-passivated rectifiers engineered for high-reliability, cost-optimized AC/DC conversion in consumer, industrial, and lighting applications.

FAQ

What is the maximum junction temperature for S2DA-13?

The absolute maximum junction temperature is +150°C, consistent with its storage temperature rating. Operation above this limit risks irreversible degradation of the glass-passivated junction. Thermal design must ensure TJ ≤ 150°C under worst-case ambient and load conditions using RJT = 20 °C/W and measured terminal temperature.

Can S2DA-13 replace S2D-13 in an existing design?

Yes-S2DA-13 (SMA package) and S2D-13 (SMB package) share identical electrical specifications including VRRM = 200 V, I(AV) = 1.5 A, and VF = 1.15 V. The only difference is physical footprint: SMA is smaller (2.29 × 4.00 mm) than SMB (3.30 × 4.06 mm). PCB land pattern must be updated to match SMA dimensions.

Is S2DA-13 suitable for use in a full-wave bridge configuration?

No-S2DA-13 is a single diode. A full-wave bridge requires four such diodes arranged in a specific topology. While electrically compatible as one quadrant, it cannot function as a complete bridge. Use dedicated bridge rectifiers like DB107S or GBU6K for integrated solutions.

Does S2DA-13 require derating for capacitive loads?

Yes-the datasheet explicitly states that for capacitive loads, the average forward current must be derated by 20%. This accounts for higher peak currents during capacitor charging, which increase thermal stress beyond the resistive/inductive load test condition. Derated I(AV) becomes 1.2 A in such cases.