Taiwan Semiconductor Corporation RS2DA

Overview

RS2DA from Taiwan Semiconductor is a 1.5A, 200V fast recovery surface-mount rectifier in DO-214AC (SMA) package, featuring 150 ns reverse recovery time, 1.3 V max forward voltage at 1.5 A, and 5 µA max reverse leakage at 25°C. It serves as a primary output rectifier in DC-DC converters and snubber circuits requiring high efficiency and thermal robustness.

For engineers reviewing the RS2DA datasheet, RS2DA pinout, RS2DA application, or RS2DA equivalent, key selection criteria include its 200 V repetitive peak reverse voltage, 50 A surge rating, 175°C maximum junction temperature, DO-214AC mechanical compatibility, and fast switching performance critical for high-frequency power conversion designs.

Technical Context

The RS2DA employs a glass-passivated silicon junction optimized for fast recovery (trr ≤ 150 ns), enabling reduced switching losses in 50–500 kHz SMPS topologies. Its single-die configuration and DO-214AC package support automated placement while maintaining low thermal resistance (R_θJL = 18°C/W).

Rated for continuous operation from –55°C to +175°C, the device delivers stable reverse leakage (<200 µA at 125°C) and maintains VF ≤ 1.3 V under full 1.5 A DC load - essential for thermally constrained lighting and industrial converter applications.

Key Specifications

Pinout & Package

DO-214AC (SMA) surface-mount package with cathode-indicated band; matte tin-plated leads compliant with J-STD-002 solderability and JESD201 Class 2 whisker resistance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STTH1L20 and MUR120, RS2DA uniquely balances 1.5 A current capability, 150 ns recovery, DO-214AC SMT compatibility, and J-STD-020 Level 1 moisture sensitivity - making it optimal for automated production of mid-power industrial and lighting converters.

Availability

RS2DA is available at Aetrix Electronics and suitable for DC-DC converters, snubber networks, LED drivers, and switching inverters requiring stable component supply, consistent parametric performance, and full traceability across production lots.

Supply support for RS2DA 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

Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving global industrial, computing, and consumer markets since 1979.

The RS2x series was designed specifically for high-efficiency, surface-mount power rectification in cost-sensitive yet thermally demanding applications - emphasizing reliability, automation readiness, and broad voltage scalability from 50 V to 1000 V.

FAQ

What is the maximum junction temperature rating for RS2DA?

The RS2DA has a maximum junction temperature (T_J) rating of +175°C, allowing uninterrupted operation in high-ambient environments such as enclosed LED drivers or industrial power supplies. This rating is validated per TSC's absolute maximum ratings table and supports full 1.5 A current derating curves up to 175°C. The RS2DA's thermal design leverages its 18°C/W junction-to-lead resistance to maintain safe operation without external heatsinking in most applications.

Does RS2DA meet RoHS and halogen-free requirements?

Yes, RS2DA complies with EU RoHS Directive 2011/65/EU and is halogen-free per IEC 61249-2-21. These attributes are confirmed in TSC's official product documentation (Version I2304) and verified through material declarations. The RS2DA uses lead-free matte tin plating and UL 94V-0 compliant molding compound - ensuring suitability for environmentally regulated end equipment including commercial lighting and industrial controls.

What is the reverse recovery time (t_rr) specification for RS2DA?

The RS2DA has a maximum reverse recovery time (t_rr) of 150 ns, measured under standardized conditions: I_F = 0.5 A, I_R = 1.0 A, I_rr = 0.25 A. This value is specified in TSC's Electrical Specifications table and applies directly to the RS2DA variant. The 150 ns t_rr enables efficient operation in switching power supplies operating up to 300 kHz, distinguishing RS2DA from slower general-purpose rectifiers like 1N400x series.

Is RS2DA compatible with automated SMT assembly processes?

Yes, RS2DA is explicitly designed for automated placement, as stated in its FEATURES section. Its DO-214AC (SMA) package, matte tin-plated leads, and J-STD-020 Level 1 moisture sensitivity rating ensure compatibility with standard reflow profiles and pick-and-place equipment. The RS2DA's mechanical data confirms solderability per J-STD-002 and whisker resistance per JESD201 Class 2 - critical for high-yield manufacturing of power electronics assemblies.

What marking code identifies RS2DA on the device body?

The RS2DA is marked with "RS2DA" on its molded plastic body, as shown in the Marking Diagram on page 5 of TSC's RS2AA–RS2MA datasheet (Version I2304). The cathode is indicated by a visible band adjacent to the marking, and the full part code appears without truncation or substitution - enabling unambiguous visual and automated optical inspection during assembly and QA.