Taiwan Semiconductor Corporation SRS2030H

Overview

SRS2030H from Taiwan Semiconductor is a 20A, 30V Schottky barrier surface-mount rectifier in TO-263AB (D2PAK) package, designed for low-loss DC/DC conversion and reverse battery protection in automotive lighting systems. It features AEC-Q101 qualification, 200A surge capability, 1.5°C/W junction-to-case thermal resistance, and 0.55V typical forward voltage at 10A/25°C.

For engineers reviewing the SRS2030H datasheet, SRS2030H pinout, SRS2030H application, or SRS2030H equivalent, key selection criteria include its 30V repetitive peak reverse voltage, dual-die configuration, moisture sensitivity level 1 rating, RoHS/halogen-free compliance, and suitability for automated SMT placement in high-reliability automotive power stages.

Technical Context

The SRS2030H integrates two Schottky die in a single TO-263AB (D2PAK) thermally optimized package, enabling high-current freewheeling with minimal conduction loss. Its guard ring structure provides overvoltage protection, while the matte tin-plated terminals ensure solderability per J-STD-002 and whisker resistance per JESD 201 Class 2.

Operating across -55°C to +150°C junction temperature range, the device delivers stable reverse leakage ≤500 µA at 25°C and ≤15 mA at 100°C under rated 30V reverse bias - critical for maintaining efficiency in thermally constrained automotive modules.

Key Specifications

Pinout & Package

Package: TO-263AB (D2PAK), surface-mount, single-row 3-terminal outline with exposed thermal pad. Case material meets UL 94V-0; terminals are matte tin-plated per J-STD-002.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VS-20CPQ030PBF and MBR2030CT, the SRS2030H uniquely combines AEC-Q101 qualification, dual-die integration in D2PAK, and MSL Level 1 - making it the only option qualified for automated SMT production of automotive-grade power modules requiring zero post-reflow handling.

Availability

SRS2030H is available at Aetrix Electronics and suitable for automotive LED lighting, 12V DC/DC converters, and reverse battery protection circuits requiring stable component supply, long-term lifecycle support, and traceable sourcing for Tier 1 OEM programs.

Supply support for SRS2030H 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 power discrete manufacturer headquartered in Hsinchu, Taiwan, serving automotive, industrial, and computing markets since 1979.

The SRS2030H belongs to TSC's AEC-Q101-qualified Schottky rectifier family, engineered specifically for high-efficiency, high-reliability power conversion in automotive under-hood and cabin applications.

FAQ

What is the maximum junction temperature rating for the SRS2030H?

The SRS2030H has a maximum junction temperature (T_J) rating of +150°C, verified per absolute maximum ratings table in the official datasheet. This allows full 20A continuous forward current operation at elevated ambient temperatures common in automotive engine compartments. The +150°C rating is confirmed for all SRS20xH variants marked "H" suffix and distinguishes them from lower-temperature versions in the same family. Thermal design must maintain case temperature within limits to avoid exceeding this junction threshold.

Is the SRS2030H suitable for reverse battery protection in 12V automotive systems?

Yes, the SRS2030H is explicitly designed for reverse battery protection in 12V automotive systems. Its 30V V_RRM provides 2.5× overvoltage margin against nominal 12V battery rails and transient spikes, while its 0.55V typical forward voltage at 10A ensures minimal power loss (<6W at 20A). The AEC-Q101 qualification, guard ring structure, and +150°C junction rating further validate its robustness in this role. Application notes from Taiwan Semiconductor confirm use in headlamp and ECU input protection circuits.

Does the SRS2030H have a dual-die configuration, and how does that affect circuit design?

Yes, the SRS2030H integrates two independent Schottky diodes sharing a common cathode terminal in a single TO-263AB package. This dual-die configuration enables two separate anode paths - useful for interleaved converter topologies, redundant freewheeling paths, or split-rail protection schemes. Unlike single-diode alternatives, it eliminates layout mismatch and thermal gradient issues between discrete devices, improving current sharing and reliability. Pinout validation confirms Anode 1, Cathode (common), and Anode 2 as distinct terminals.

What is the moisture sensitivity level (MSL) of the SRS2030H, and what does it mean for manufacturing?

The SRS2030H is rated MSL Level 1 per J-STD-020, meaning it has unlimited floor life and requires no dry-packaging or baking prior to surface-mount reflow. This simplifies SMT line logistics, reduces process risk, and avoids moisture-induced defects like popcorning or delamination. The Level 1 rating is confirmed in the Mechanical Data section of the official datasheet and applies to all SRS20xH variants. It reflects the robust molding compound and terminal plating used in TO-263AB packaging.

How does the SRS2030H compare to the SRS2040H in terms of forward voltage and application suitability?

The SRS2030H specifies 0.55V typical forward voltage at 10A/25°C, while the SRS2040H (40V V_RRM) is rated at 0.55V for the same condition - identical V_F due to shared die process. However, the SRS2030H's lower 30V rating makes it optimal for 12V systems where tighter V_RRM margin improves efficiency and reduces capacitance-related switching losses. The SRS2040H suits 24V or higher-input applications needing greater reverse standoff. Both share AEC-Q101, TO-263AB, and dual-die architecture - but V_RRM selection must match system voltage architecture.