Taiwan Semiconductor Corporation SRA1030

Overview

SRA1030 from Taiwan Semiconductor is a 10A, 30V Schottky barrier rectifier in TO-220AC package, designed for high-efficiency DC/DC conversion and SMPS output stages. It delivers low forward voltage (0.55 V at 10 A, 25°C), high surge current capability (170 A), and junction temperature rating up to +150°C. Used in automotive-grade power adapters requiring AEC-Q101 qualification when ordered as SRA1030H.

For engineers reviewing the SRA1030 datasheet, SRA1030 pinout, SRA1030 application, or SRA1030 equivalent, key selection factors include its 30 V repetitive peak reverse voltage, 2 °C/W junction-to-case thermal resistance, guard ring–enhanced overvoltage protection, and compatibility with J-STD-002 soldering standards.

Technical Context

The SRA1030 employs a single-die Schottky structure optimized for low conduction loss in medium-voltage rectification. Its 30 V V_RRM, 170 A I_FSM, and 10,000 V/µs dv/dt rating support robust operation in fast-switching topologies like synchronous buck converters and flyback secondary-side rectification.

Thermally, it features a TO-220AC case with 2 °C/W R_θJC, enabling direct heatsink mounting without isolation pads under standard torque (≤0.56 N·m). The device operates across –55°C to +150°C junction range and meets JESD201 Class 2 whisker resistance.

Key Specifications

Pinout & Package

TO-220AC package: 3-terminal through-hole device with anode (pin 1), cathode (pin 2), and electrically connected tab (pin 3, cathode). Mounting tab serves as primary heat path and must be electrically tied to cathode potential.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VS-10BQ030 and MBR1030CT, the SRA1030 offers superior thermal resistance (2 °C/W), AEC-Q101 availability, and tighter VF consistency-making it optimal for space-constrained, high-reliability 10 A rectification where thermal headroom and automotive qualification matter.

Availability

SRA1030 is available at Aetrix Electronics and suitable for automotive DC/DC converters, industrial SMPS outputs, and consumer power adapters requiring stable component supply and long-term manufacturability.

Supply support for SRA1030 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 devices, and MOSFETs since 1979.

The SRA1030 belongs to TSC's AEC-Q101–capable Schottky rectifier product line, engineered for high-efficiency, high-reliability power conversion in automotive, industrial, and computing applications where low VF and robust surge handling are critical.

FAQ

What is the maximum junction temperature rating for the SRA1030?

The SRA1030 has a maximum junction temperature (T_J) rating of +150°C, verified per absolute maximum ratings table. This allows reliable operation in under-hood automotive environments and high-ambient industrial enclosures. Derating curves confirm usable current capacity down to 0 A at 150°C case temperature, with full 10 A rated at ≤100°C case.

Does the SRA1030 have AEC-Q101 qualification?

Yes-the SRA1030 is available in an AEC-Q101–qualified version designated SRA1030H. Standard SRA1030 is not AEC-Q101 certified; only the "H" suffix variant undergoes full stress testing per AEC-Q101 Rev D requirements including HTGB, HTRB, and temperature cycling.

What is the forward voltage of the SRA1030 at 10 A and 100°C junction temperature?

Per electrical specifications, the SRA1030 exhibits a typical forward voltage of 0.55 V at 10 A and 25°C. At 100°C junction temperature, VF increases to approximately 0.48 V (typ), based on the negative temperature coefficient of Schottky diodes confirmed in Fig.4 forward characteristics curve.

Can the SRA1030 replace the SRA1020 in an existing design?

Yes-the SRA1030 is a direct upgrade from SRA1020 with identical TO-220AC package, pinout, and thermal footprint. Its higher 30 V V_RRM (vs. 20 V) provides increased reverse voltage margin, while VF and I_FSM remain unchanged. No PCB or thermal redesign is needed unless the original design operated near SRA1020's 20 V limit.

What is the reverse leakage current of the SRA1030 at 30 V and 125°C?

At 30 V reverse voltage and 125°C junction temperature, the SRA1030 exhibits a maximum reverse leakage current (I_R) of 10 mA, as specified in the electrical characteristics table. This value is measured under pulse conditions (PW = 30 ms) and reflects worst-case conduction in high-temp, high-stress operation.