Taiwan Semiconductor Corporation SRA8100

Overview

SRA8100 from Taiwan Semiconductor is an AEC-Q101-qualified 100 V, 8 A Schottky barrier rectifier in TO-220AC package, featuring 0.85 V forward voltage at 8 A and 100 µA reverse leakage at 25°C, used in automotive-grade DC-DC converters and industrial SMPS.

For engineers reviewing the SRA8100 datasheet, SRA8100 pinout, SRA8100 application, or SRA8100 equivalent, key selection factors include its 100 V repetitive peak reverse voltage, 150 A surge capability, 4 °C/W junction-to-case thermal resistance, and compliance with JESD201 Class 2 whisker testing for high-reliability power conversion designs.

Technical Context

The SRA8100 operates as a single-die Schottky rectifier with guard ring structure for overvoltage protection and supports continuous forward current up to 8 A at case temperature ≤100°C. Its 100 V V_RRM rating targets mid-voltage DC-DC stages where low conduction loss and fast switching are critical.

Thermal performance is defined by R_θJC = 4 °C/W and maximum junction temperature of 150°C, enabling stable operation under high ambient conditions. Reverse leakage remains ≤100 µA at 25°C and ≤5 mA at 125°C, supporting reliable blocking in high-temperature automotive environments.

Key Specifications

Pinout & Package

Package: TO-220AC - Three-terminal through-hole package with isolated tab, matte tin-plated leads, UL 94V-0 molding compound, and 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-8EWH10FN-M3 and MUR8100CT, the SRA8100 uniquely combines AEC-Q101 qualification, 0.85 V forward voltage, and single-die TO-220AC layout-making it optimal for space-constrained, high-reliability automotive DC-DC rectification where qualification and thermal performance are non-negotiable.

Availability

SRA8100 is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial SMPS secondary rectification, and telecom power brick designs requiring stable component supply and long-term lifecycle support.

Supply support for SRA8100 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 automotive, industrial, and consumer markets since 1979.

The SRA8xxx series was developed specifically for high-efficiency, high-reliability power conversion in automotive and industrial applications-emphasizing low V_F, robust surge capability, and AEC-Q101 compliance across the 20–150 V range.

FAQ

What is the maximum junction temperature rating for the SRA8100?

The SRA8100 has a maximum junction temperature (T_J) rating of +150°C, verified per absolute maximum ratings table in the official datasheet. This allows sustained operation in high-ambient environments such as engine compartments or sealed industrial enclosures. Derating curves confirm 8 A continuous current is maintainable up to 100°C case temperature, with thermal design dependent on R_θJC = 4 °C/W and heatsink interface quality. The SRA8100 must not exceed 150°C under any operating condition.

Is the SRA8100 pin-compatible with other devices in the SRA8xx family?

Yes-the SRA8100 shares identical TO-220AC package dimensions, pinout, and terminal assignment (anode, cathode, cathode-connected tab) with all SRA820–SRA8150 variants. Mechanical drawings and marking diagrams confirm uniform footprint and mounting torque (0.56 N·m max). However, electrical parameters-including V_RRM, V_F, and I_R-vary across the family, so substitution requires verification of voltage and thermal requirements. The SRA8100 is not a drop-in replacement for lower-voltage variants without circuit review.

Does the SRA8100 meet automotive qualification standards?

Yes-the SRA8100 is explicitly listed as AEC-Q101 qualified in the official datasheet's FEATURES section and ordering code notes ("H" suffix denotes qualification). It undergoes stress testing per AEC-Q101 including HTGB, HTRB, temperature cycling, and mechanical shock. This qualification applies specifically to the SRA8100 part number-not inferred from family-level claims-and validates suitability for automotive powertrain, body electronics, and ADAS subsystems where reliability is mission-critical.

What is the forward voltage specification for the SRA8100 under typical operating conditions?

The SRA8100 has a typical forward voltage (V_F) of 0.85 V at I_F = 8 A and T_J = 25°C, as specified in the ELECTRICAL SPECIFICATIONS table. At elevated junction temperatures (e.g., 125°C), V_F decreases slightly due to Schottky physics, but system-level design should reference the 25°C value for worst-case conduction loss calculation. Pulse testing uses 0.3 ms width; for continuous operation, thermal derating must be applied per the Forward Current Derating Curve in the datasheet. This V_F directly impacts efficiency in the SRA8100's target applications.

How does the SRA8100's reverse leakage current compare across temperature ranges?

The SRA8100 exhibits ≤100 µA reverse leakage (I_R) at rated V_R = 100 V and T_J = 25°C, ≤5 mA at T_J = 125°C, and unspecified above 125°C per datasheet limits. This behavior follows standard Schottky exponential dependence on temperature. At 100°C, leakage is not explicitly tabulated but falls between these bounds-typically ~1–2 mA. Designers using the SRA8100 in high-temperature bias supplies must account for this increase, as leakage contributes directly to standby power loss. The SRA8100's leakage is lower than earlier-generation 100 V Schottkys due to optimized metallization and guard ring design.