Taiwan Semiconductor Corporation SF2005PT

Overview

SF2005PT from Taiwan Semiconductor is a dual-die, positive-center-tap superfast rectifier in TO-247AD (TO-3P) package, rated for 20 A average forward current, 400 V repetitive peak reverse voltage (V_RRM), and 35 ns reverse recovery time (t_rr). It delivers low forward voltage (1.300 V at 10 A, 25°C) and high thermal efficiency (R_θJC = 2.5°C/W), enabling use in high-frequency DC/DC converters and snubber circuits.

For engineers reviewing the SF2005PT datasheet, SF2005PT pinout, SF2005PT application, or SF2005PT equivalent, key selection criteria include its 400 V V_RRM, dual-center-tap configuration, TO-247AD mechanical compatibility, AEC-Q101 qualification availability, and verified 35 ns t_rr performance under standardized test conditions (I_F = 0.5 A, I_R = 1.0 A, I_rr = 0.25 A).

Technical Context

The SF2005PT 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 robustness against moisture and contamination, while the 2.5°C/W junction-to-case thermal resistance supports high-power operation up to 150°C junction temperature.

This device operates as a superfast switching rectifier with defined electrical boundaries: 400 V V_RRM, 180 A non-repetitive surge rating (8.3 ms half-sine), and 10 µA max reverse leakage at 25°C. Its 35 ns t_rr and 175 pF junction capacitance per diode are measured under strict 1 MHz/4.0 V bias conditions, confirming suitability for >100 kHz switching topologies.

Key Specifications

Pinout & Package

Package: TO-247AD (TO-3P), 3-terminal, positive-center-tap configuration. Case is electrically connected to cathode (pin 2). Anodes are isolated terminals (pins 1 and 3). Mounting torque ≤ 1.13 N·m; matte tin-plated leads compliant with J-STD-002 solderability.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STTH2004TV and IXYS MUR2040CT, the SF2005PT uniquely combines integrated center-tap topology, 35 ns t_rr, and 1.300 V V_F in a single TO-247AD package-reducing component count and layout complexity while maintaining superior high-frequency efficiency.

Availability

SF2005PT is available at Aetrix Electronics and suitable for DC/DC converters, snubber networks, lighting power supplies, and freewheeling applications requiring stable component supply, consistent parametric performance, and long-term industrial lifecycle support.

Supply support for SF2005PT 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 semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving industrial, computing, and consumer markets since 1979.

The SF2005PT belongs to TSC's SF-series superfast rectifier product line, engineered specifically for high-efficiency, high-frequency switching power supplies where low t_rr, low V_F, and robust thermal performance are critical.

FAQ

What is the repetitive peak reverse voltage (V_RRM) rating for SF2005PT?

The SF2005PT has a repetitive peak reverse voltage (V_RRM) rating of 400 V, as confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version I2103). This value is specific to SF2005PT and differs from other members of the SF2001PT–SF2008PT family, which range from 50 V to 600 V. The 400 V rating defines the maximum reverse-biased voltage the device can block repeatedly without breakdown under normal operating conditions.

Is SF2005PT available in an AEC-Q101 qualified version?

Yes, the AEC-Q101 qualified version of SF2005PT is designated SF2005PTH and shares identical electrical and thermal specifications. The "H" suffix indicates compliance with AEC-Q101 stress testing for automotive-grade reliability, including temperature cycling, humidity bias, and mechanical shock. SF2005PT itself is not qualified; only SF2005PTH carries this certification, and both share the same TO-247AD package and marking code format.

What is the forward voltage (V_F) of SF2005PT at 20 A and 25°C?

The forward voltage (V_F) of SF2005PT is specified as 1.500 V at 20 A and 25°C junction temperature, per the Electrical Specifications table in the Taiwan Semiconductor datasheet (Version I2103). This value is measured under pulsed conditions (PW = 0.3 ms) to avoid self-heating effects. At 10 A and 25°C, V_F is 1.300 V. Both values apply exclusively to SF2005PT and SF2006PT within the family.

Does SF2005PT have a center-tap configuration, and how is it implemented physically?

Yes, SF2005PT uses a positive-center-tap configuration implemented via dual isolated silicon dies in a single TO-247AD package. Pin 2 is the common cathode (center tap), while pins 1 and 3 serve as independent anodes. The metal tab is electrically connected to pin 2, enabling direct thermal and electrical connection to the heatsink. This structure eliminates external wiring between two discrete diodes and maintains symmetry for balanced current sharing in full-wave rectifier circuits.

What is the junction-to-case thermal resistance (R_θJC) of SF2005PT?

The junction-to-case thermal resistance (R_θJC) of SF2005PT is 2.5°C/W, as published in the Thermal Performance section of the official Taiwan Semiconductor datasheet (Version I2103). This value is measured under standardized cold-plate mounting conditions and applies to the entire SF2001PT–SF2008PT series. It enables accurate thermal modeling when the device is mounted with proper thermal interface material and mechanical torque (≤1.13 N·m) on a heatsink.