Taiwan Semiconductor Corporation SRS2090

Overview

SRS2090 from Taiwan Semiconductor is a 20A, 90V Schottky barrier surface-mount rectifier in TO-263AB (D2PAK) package, featuring dual-die construction, 200A surge capability, 1.5°C/W junction-to-case thermal resistance, and 5mA reverse leakage at 125°C. It serves as a high-efficiency output rectifier in DC-DC converters and industrial SMPS.

For engineers reviewing the SRS2090 datasheet, SRS2090 pinout, SRS2090 application, or SRS2090 equivalent, key selection criteria include its 90V V_RRM, low 0.92V forward voltage at 10A/25°C, thermal performance under continuous conduction mode, and compatibility with automated SMT assembly per J-STD-002.

Technical Context

The SRS2090 implements a dual-die Schottky structure optimized for low forward voltage and fast recovery in high-frequency switching topologies. Its 90V repetitive peak reverse voltage and 5mA reverse current at 125°C enable stable operation in 48V-output telecom and server power supplies.

Thermal design is supported by a 1.5°C/W R_θJC and 125–150°C maximum junction temperature range. The device uses matte tin-plated leads compliant with JESD 201 Class 2 whisker testing and meets UL 94V-0 flammability requirements in its TO-263AB molding compound.

Key Specifications

Pinout & Package

Package: TO-263AB (D2PAK), surface-mount, single-row 3-terminal configuration with exposed cathode tab for thermal and electrical connection.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VS-20CPH09-M3 and MBR2090CT, the SRS2090 offers superior forward voltage and native dual-anode SMT integration-enabling higher power density and lower system-level thermal resistance without layout redesign.

Availability

SRS2090 is available at Aetrix Electronics and suitable for telecom DC-DC converters, industrial SMPS, and server VRMs requiring stable component supply, long-term lifecycle support, and J-STD-020 Level 1 moisture-safe handling.

Supply support for SRS2090 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, specializing in power rectifiers, TVS diodes, and MOSFETs since 1979.

The SRS2090 belongs to TSC's SRS20xx Schottky rectifier family, engineered for high-efficiency, high-reliability power conversion in industrial and communications infrastructure where thermal robustness and surge resilience are critical.

FAQ

What is the maximum junction temperature rating for the SRS2090?

The SRS2090 has a maximum junction temperature (T_J) rating of 150°C, verified per absolute maximum ratings table in the official TSC datasheet revision L2103. This allows reliable operation in sealed, high-ambient environments such as enclosed LED drivers or telecom rectifiers. Derating begins above 125°C case temperature, and the device maintains specified I_R and V_F performance up to its full 150°C limit. Thermal design must account for R_θJC = 1.5°C/W and PCB copper area.

Does the SRS2090 support automated pick-and-place assembly?

Yes, the SRS2090 is qualified for automated placement per J-STD-002 and carries J-STD-020 moisture sensitivity level 1, meaning it can be used directly from dry pack without baking. Its TO-263AB (D2PAK) package features matte tin-plated leads with controlled coplanarity and solderability, and the device is supplied in 800-unit tape-and-reel format compatible with standard SMT feeders. No special handling or pre-conditioning is required before reflow.

What is the reverse leakage current specification for the SRS2090 at elevated temperature?

The SRS2090 specifies a maximum reverse leakage current (I_R) of 5 mA at rated V_RRM = 90V and junction temperature of 125°C. At 25°C, I_R is limited to 100 µA. This elevated-temperature leakage value is critical for evaluating standby power loss and thermal stability in parallel configurations or high-temperature ambient deployments such as industrial motor drives. The value is measured per pulse test condition (PW = 30 ms).

How does the dual-die structure of the SRS2090 benefit circuit design?

The SRS2090's dual-die architecture provides two independent anodes sharing a common cathode (tab), enabling flexible topologies such as interleaved rectification, dual-phase outputs, or redundancy without external diode isolation. This eliminates the need for separate discrete diodes and associated layout area, reduces parasitic inductance, and improves current sharing in high-current designs. Each anode is rated for full 20A I_F, and both operate within the same thermal boundary defined by the D2PAK package.

Is the SRS2090 halogen-free and RoHS-compliant?

Yes, the SRS2090 is certified halogen-free per IEC 61249-2-21 and fully RoHS-compliant per EU Directive 2011/65/EU. The molding compound contains no brominated flame retardants or chlorine-based additives, and all terminations use lead-free matte tin plating. These compliance attributes are documented in TSC's official product declaration and material content reports, supporting use in environmentally regulated markets including the EU, Japan, and North America.