Taiwan Semiconductor Corporation SR3030PT

Overview

SR3030PT from Taiwan Semiconductor is a 30A, 30V AEC-Q101-qualified Schottky barrier rectifier in TO-247AD (TO-3P) package, featuring 0.55V forward voltage at 15A/25°C, 300A surge capability, and guard ring overvoltage protection-used in high-efficiency SMPS secondary-side rectification.

For engineers reviewing the SR3030PT datasheet, SR3030PT pinout, SR3030PT application, or SR3030PT equivalent, key selection criteria include repetitive peak reverse voltage (30 V), junction-to-case thermal resistance (1.5 °C/W), TJ max rating (125 °C or 150 °C depending on variant), low IR (≤1000 µA at 25°C), and dual-die TO-247AD construction for thermal and reliability-critical power conversion designs.

Technical Context

The SR3030PT implements a dual-die Schottky structure with guard ring termination to suppress edge breakdown under transient overvoltage. Its 30V V_RRM and 0.55V V_F at 15A enable high-efficiency operation in low-voltage DC-DC outputs and adapter secondary stages.

Thermal performance is defined by R_θJC = 1.5 °C/W and maximum junction temperature of 125 °C (standard) or 150 °C (high-temp variant), supporting forced-air or heatsink-mounted deployments in compact industrial and consumer power supplies.

Key Specifications

Pinout & Package

Package: TO-247AD (TO-3P), 3-terminal single-ended configuration with anode, cathode, and case-connected tab (cathode common in dual-die layout). Matte tin-plated leads, UL 94V-0 molding compound, 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-30CPH03-M3 and MUR3030CT, the SR3030PT offers optimal balance of low V_F, proven AEC-Q101 reliability, and industry-standard TO-247AD mechanical compatibility-making it preferred for thermally demanding, high-volume industrial and consumer power supplies where long-term stability matters.

Availability

SR3030PT is available at Aetrix Electronics and suitable for switching mode power supplies, AC/DC adapters, and TV power systems requiring stable component supply, consistent parametric performance, and long-term manufacturability assurance.

Supply support for SR3030PT 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 global industrial, computing, and consumer markets since 1979.

The SR3030PT belongs to TSC's SR30xPT Schottky rectifier family, engineered specifically for high-current, low-V_F secondary-side rectification in compact, thermally constrained power supplies targeting efficiency, reliability, and regulatory compliance.

FAQ

What is the maximum junction temperature rating for SR3030PT?

The SR3030PT is offered in two junction temperature grades: standard version rated for T_J = –55°C to +125°C, and high-temperature version rated for –55°C to +150°C. The specific grade is indicated by ordering code suffix and must be confirmed per datasheet revision H2103. Both versions share identical electrical parameters and TO-247AD packaging. Always consult the device marking and packing label to verify the intended T_J max rating before thermal design.

Is SR3030PT pin-compatible with other parts in the SR30xPT series?

Yes, all SR30xPT devices-including SR3020PT, SR3030PT, SR3040PT through SR30150PT-share identical TO-247AD (TO-3P) package dimensions, pinout, and terminal assignment. This allows board-level voltage scalability: designers can select 20V to 150V V_RRM variants without layout changes. However, forward voltage and leakage vary by voltage rating, so electrical validation is required when substituting across the series.

Does SR3030PT require a heatsink in typical operation?

Yes, the SR3030PT requires external heatsinking for continuous 30A operation. With R_θJC = 1.5 °C/W and P_D ≈ 16.5W at 30A/0.55V, even at T_C = 85°C, junction temperature exceeds 125°C without thermal management. A minimum 15 cm² aluminum heatsink with thermal interface material is recommended for sustained loads; forced air further extends safe operating area. Derating curves in the datasheet must be applied for ambient temperatures above 50°C.

What does the "H" suffix mean in SR3030PTH?

The "H" suffix in SR3030PTH denotes AEC-Q101 qualification per the ordering information table in the datasheet. SR3030PTH undergoes additional stress testing-including HTGB, H3TRB, and temperature cycling-to validate reliability for automotive applications. Standard SR3030PT lacks this qualification and is intended for industrial/consumer use. Both share identical electrical specs and packaging, but only SR3030PTH may be used in automotive power modules without requalification.

How is the dual-die configuration implemented in SR3030PT?

The SR3030PT integrates two identical Schottky die in parallel within a single TO-247AD package, electrically configured as a common-cathode dual rectifier. Leads 1 (anode) and 2 (cathode) connect to both dies, while the metal tab serves as the cathode thermal and electrical path. This architecture delivers 30A average current with improved current sharing and thermal distribution versus single-die alternatives-without requiring external paralleling components or layout modifications.