Taiwan Semiconductor Corporation SF2004PT

Overview

SF2004PT from Taiwan Semiconductor is a dual-die, positive-center-tap superfast rectifier in TO-247AD package, rated for 20 A average forward current (IF), 200 V repetitive peak reverse voltage (VRRM), and 1.100 V forward voltage at 20 A / 25°C. It delivers 35 ns reverse recovery time (trr), 2.5 °C/W junction-to-case thermal resistance, and operates up to 150°C junction temperature - deployed in high-efficiency DC-DC converters and snubber circuits.

For engineers reviewing the SF2004PT datasheet, SF2004PT pinout, SF2004PT application, or SF2004PT equivalent, key selection criteria include its 200 V VRRM rating, dual-center-tap configuration, TO-247AD mechanical compatibility, 35 ns trr performance, and AEC-Q101 qualification availability across the SF20xxPT family.

Technical Context

The SF2004PT integrates two identical silicon die in a single TO-247AD package with shared cathode and isolated anodes - enabling center-tapped full-wave rectification without external wiring. Its glass-passivated junctions ensure stable operation under thermal cycling and humidity stress.

Designed for switching-mode power supplies, it combines low VF (1.100 V @ 20 A) and fast trr (35 ns) to minimize conduction and switching losses. The 2.5 °C/W RθJC enables direct heatsink mounting with predictable thermal margin at full 20 A load.

Key Specifications

Pinout & Package

Package: TO-247AD (TO-3P), 3-terminal, positive-center-tap configuration. Anode 1 and Anode 2 are electrically isolated; Cathode is common and internally connected to the metal tab (case).

Key Features

Applications

Equivalent & Alternatives

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

Compared with STTH20L06TV1 and IXYS MUR2020CT, the SF2004PT uniquely integrates dual 200 V/20 A dies in one TO-247AD package with 2.5 °C/W thermal resistance - offering superior thermal performance and layout simplicity for center-tapped topologies without sacrificing speed or voltage rating.

Availability

SF2004PT is available at Aetrix Electronics and suitable for DC–DC converters, switching inverters, and LED drivers requiring stable component supply, long-lifecycle support, and AEC-Q101 qualification readiness.

Supply support for SF2004PT 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.

The SF20xxPT series was developed to deliver high-reliability, superfast rectification in compact TO-247AD packages - targeting high-density power conversion systems where thermal efficiency, switching speed, and mechanical robustness are critical.

FAQ

What is the maximum repetitive peak reverse voltage (VRRM) for SF2004PT?

The SF2004PT has a VRRM rating of 200 V, confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version I2103). This value is specific to the SF2004PT variant - other members of the SF20xxPT family range from 50 V to 600 V. The 200 V rating ensures safe operation in 120 VAC-derived DC bus applications with appropriate safety margin.

Does SF2004PT have AEC-Q101 qualification?

The SF2004PT itself is not explicitly marked as AEC-Q101 qualified in the provided documentation; however, the SF20xxPTH variant (e.g., SF2004PTH) is designated for AEC-Q101 compliance. The base SF2004PT shares identical die, package, and electrical characteristics - only the screening and traceability differ. Customers requiring automotive qualification should specify the 'H' suffix version.

What is the forward voltage drop of SF2004PT at full rated current?

At IF = 20 A and TJ = 25°C, the SF2004PT exhibits a maximum forward voltage (VF) of 1.100 V per diode, as specified in the Electrical Specifications table. This value is measured under pulse conditions (PW = 0.3 ms) and reflects conduction loss under typical transient load conditions in high-frequency power supplies.

How is the pinout configured for the dual-diode structure in SF2004PT?

The SF2004PT uses a positive-center-tap configuration: Anode 1 and Anode 2 are isolated input terminals (leads 1 and 2), while the Cathode is common and connected to the metal tab. This allows full-wave rectification from a center-tapped transformer secondary without external parallel wiring - reducing PCB trace inductance and improving thermal symmetry between dies.

What thermal performance can be expected from SF2004PT in a real-world heatsink assembly?

With a junction-to-case thermal resistance (RθJC) of 2.5 °C/W, the SF2004PT achieves a 50°C temperature rise above heatsink temperature at 20 A (assuming 22 W dissipation). When mounted on a 10°C/W heatsink with 1 m/s airflow, the junction temperature remains below 125°C - well within the 150°C maximum rating and supporting reliable operation in enclosed industrial power supplies.