Taiwan Semiconductor Corporation SRA830

Overview

SRA830 from Taiwan Semiconductor is a single-die AEC-Q101-qualified Schottky barrier rectifier in TO-220AC package, rated for 30 V repetitive peak reverse voltage (V_RRM), 8 A average forward current (I_F), and 150 A non-repetitive surge current (I_FSM). It delivers low forward voltage drop (0.55 V at 8 A, 25°C) and supports high-efficiency switching mode power supplies.

For engineers reviewing the SRA830 datasheet, SRA830 pinout, SRA830 application, or SRA830 equivalent, key selection considerations include its 30 V V_RRM, 0.55 V V_F at full load, 4 °C/W junction-to-case thermal resistance, AEC-Q101 qualification status, and TO-220AC mechanical compatibility with standard heatsink mounting.

Technical Context

The SRA830 operates as a unidirectional power rectifier optimized for high-frequency switching topologies. Its Schottky architecture enables fast recovery (no minority-carrier storage), low conduction loss, and inherent dv/dt immunity up to 10,000 V/µs - critical for noise-sensitive DC-DC converters and automotive-grade adapters.

Thermally, it features a 4 °C/W R_θJC and maximum junction temperature of +150°C, enabling sustained 8 A operation under forced-air or heatsink-cooled conditions. Reverse leakage remains ≤500 µA at 25°C and ≤15 mA at 100°C, supporting stable performance across industrial ambient ranges.

Key Specifications

Pinout & Package

TO-220AC package with 3-terminal configuration: Anode (pin 1), Cathode (pin 2), and case (pin 3, electrically connected to cathode). Matte tin-plated leads comply with J-STD-002 solderability; polarity marked on device body.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VS-8EWH03-M3 and MUR830G, the SRA830 offers the best balance of low V_F, AEC-Q101 availability, and thermal performance in 30 V-class rectification - making it optimal for automotive and industrial SMPS where efficiency, reliability, and qualification alignment are jointly critical.

Availability

SRA830 is available at Aetrix Electronics and suitable for switching mode power supplies, automotive DC-DC converters, and industrial PLC power modules requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant variants (SRA830H).

Supply support for SRA830 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 semiconductor manufacturer specializing in discrete power devices, analog ICs, and protection components for industrial, computing, and automotive markets.

The SRA820–SRA8150 family was designed specifically to deliver high-current, low-V_F Schottky rectification in TO-220AC packages with AEC-Q101 qualification paths - targeting next-generation compact, efficient, and automotive-grade power conversion systems.

FAQ

What is the maximum junction temperature rating for the SRA830?

The SRA830 has a maximum junction temperature (T_J) rating of +150°C, verified per absolute maximum ratings table in the official datasheet. This allows continuous operation in high-ambient environments such as under-hood automotive locations or sealed industrial enclosures. Derating curves confirm 8 A average forward current remains valid up to this limit when thermal resistance is properly managed via heatsinking.

Is the SRA830 pin-compatible with other parts in the SRA8xx series?

Yes, all SRA8xx devices - including SRA820, SRA830, SRA840 through SRA8150 - share identical TO-220AC packaging, pinout (anode/cathode/tab), and mechanical footprint. Voltage ratings differ only in internal die construction; PCB layout and mounting hardware remain unchanged across the family, enabling easy voltage-scaling during design iteration or qualification.

Does the SRA830 have AEC-Q101 qualification?

The base SRA830 is not AEC-Q101 qualified; however, the SRA830H variant is fully AEC-Q101 qualified per Version J2103 documentation. The "H" suffix denotes automotive-grade stress testing including HTOL, temperature cycling, and highly accelerated life testing. Designers requiring automotive compliance must specify SRA830H, not SRA830, for production use.

What is the typical forward voltage of the SRA830 at 8 A and 100°C junction temperature?

The datasheet specifies forward voltage (V_F) only at 25°C (0.55 V max) and does not provide a typ/max curve at 100°C. However, based on typical Schottky behavior and thermal coefficient data, V_F decreases by ~2 mV/°C - resulting in an estimated V_F ≈ 0.41 V at 100°C and 8 A. This lower V_F improves efficiency at elevated temperatures but increases reverse leakage, which remains within 15 mA limit per spec.

How does the guard ring feature improve reliability in the SRA830?

The guard ring in the SRA830 mitigates edge breakdown under high dv/dt stress or localized overvoltage transients. By shaping the electric field distribution at the die periphery, it prevents premature avalanche at junction edges - a common failure mode in high-speed switching applications like LLC resonant converters. This extends operational lifetime and improves consistency in noisy industrial power environments.