Taiwan Semiconductor Corporation SR3050PTH

Overview

SR3050PTH from Taiwan Semiconductor is a 30A, 50V AEC-Q101-qualified Schottky barrier rectifier in TO-247AD (TO-3P) package, featuring 0.70 V forward voltage at 15 A and 25°C, 300 A surge capability, and junction-to-case thermal resistance of 1.5°C/W - used in automotive-grade DC-DC converters and high-efficiency SMPS.

For engineers reviewing the SR3050PTH datasheet, SR3050PTH pinout, SR3050PTH application, or SR3050PTH equivalent, key selection criteria include repetitive peak reverse voltage (50 V), forward current rating (30 A), thermal performance (R_θJC = 1.5°C/W), AEC-Q101 qualification status, and TO-247AD mechanical compatibility for high-power thermal management.

Technical Context

This dual-die Schottky rectifier operates with low conduction loss due to its metal-semiconductor junction, enabling high efficiency in switching power topologies. Its guard ring structure provides overvoltage protection, and it supports continuous operation up to 150°C junction temperature.

The device delivers 300 A non-repetitive surge current (8.3 ms half-sine) and exhibits reverse leakage of ≤1000 µA at 25°C and ≤15 mA at 100°C - critical for reliability in automotive and industrial power supplies where thermal stress and transient load conditions are severe.

Key Specifications

Pinout & Package

Package: TO-247AD (TO-3P) - isolated-mount, 3-terminal through-hole package with matte tin-plated leads compliant with J-STD-002 solderability and JESD 201 Class 2 whisker resistance; mounting torque ≤1.13 N·m.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VS-30CPH05-M3 and MUR3050PT, SR3050PTH uniquely combines AEC-Q101 qualification, 150°C junction rating, UL recognition, and halogen-free compliance - making it the only option qualified for under-hood automotive power conversion where reliability, safety, and regulatory alignment are mandatory.

Availability

SR3050PTH is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial SMPS outputs, and monitor power supplies requiring stable component supply, long-lifecycle support, and AEC-Q101-compliant sourcing.

Supply support for SR3050PTH 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 for industrial and automotive markets.

SR3050PTH belongs to TSC's AEC-Q101-qualified SR30xPTH Schottky rectifier product line, engineered specifically for high-reliability, high-current rectification in automotive power systems and industrial switch-mode power supplies demanding low loss and thermal resilience.

FAQ

What is the maximum junction temperature rating for SR3050PTH?

The SR3050PTH has a maximum junction temperature (T_J) rating of +150°C, verified per its absolute maximum ratings table. This allows sustained operation in high-ambient environments such as automotive under-hood locations. The SR3050PTH maintains specified electrical performance up to this limit when thermal design accounts for its 1.5°C/W junction-to-case resistance and proper heatsinking.

Is SR3050PTH pin-compatible with other TO-247AD Schottky rectifiers?

Yes, SR3050PTH uses the standard TO-247AD (TO-3P) footprint with anode, cathode, and electrically connected metal tab - matching mechanical and thermal mounting dimensions of industry-standard TO-247AD rectifiers. However, electrical compatibility depends on V_RRM, I_F, and thermal specs; always verify forward voltage, leakage, and surge ratings before substitution.

Does SR3050PTH require a heatsink in typical 30 A operation?

Yes, SR3050PTH requires a heatsink for continuous 30 A operation, especially above 25°C ambient. With R_θJC = 1.5°C/W and typical V_F = 0.70 V, power dissipation exceeds 21 W - necessitating thermal interface design to maintain T_J ≤ 150°C. The TO-247AD tab serves as the primary thermal path and must be mounted to a heatsink using appropriate hardware and thermal compound.

What does the "H" suffix in SR3050PTH signify?

The "H" suffix in SR3050PTH indicates AEC-Q101 qualification - confirming that the device has passed stress testing for automotive-grade reliability, including temperature cycling, humidity bias HAST, and ESD. This distinguishes SR3050PTH from the non-H version (SR3050PT), which lacks automotive qualification despite identical electrical specs and packaging.

How does SR3050PTH perform at elevated temperatures like 100°C junction?

At 100°C junction temperature, SR3050PTH exhibits ≤15 mA reverse leakage current (I_R) - significantly higher than its 25°C value of ≤1000 µA but still within specification. Forward voltage increases slightly, and derating of average forward current is required per the forward current derating curve; the device remains fully functional and stable up to its 150°C maximum rating.