Taiwan Semiconductor Corporation SF3008PTH

Overview

SF3008PTH from Taiwan Semiconductor is a dual-die, positive-center-tap superfast rectifier in TO-247AD (TO-3P) package, rated for 30 A average forward current, 600 V repetitive peak reverse voltage, and 35 ns reverse recovery time. It delivers low forward voltage (1.70 V at 15 A, 25°C), low thermal resistance (1.0 °C/W), and supports high-efficiency DC/DC converters and snubber circuits.

For engineers reviewing the SF3008PTH datasheet, SF3008PTH pinout, SF3008PTH application, or SF3008PTH equivalent, key selection criteria include its AEC-Q101 qualification, dual-die center-tap configuration, 600 V V_RRM, 300 A I_FSM, and thermal performance under high-current switching conditions.

Technical Context

The SF3008PTH 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 superfast recovery (t_rr = 35 ns) and low Q_rr minimize switching losses in high-frequency SMPS topologies.

Designed for automotive-grade reliability, the device features glass-passivated junctions, matte tin-plated leads compliant with J-STD-002, and meets JESD 301 Class 2 whisker resistance. Junction temperature range spans −55°C to +150°C, supporting operation in demanding under-hood environments.

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 terminal. Mounting hole centered on tab for mechanical stability and thermal path.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar superfast dual-center-tap rectifier applications.

Compared with STTH30L06S and IXYS MUR3060CT, the SF3008PTH uniquely combines AEC-Q101 qualification, integrated dual-die center-tap, and 35 ns recovery-making it optimal for space-constrained, high-frequency automotive and industrial power supplies where layout simplicity and EMI control are critical.

Availability

SF3008PTH is available at Aetrix Electronics and suitable for on-board chargers, industrial DC/DC converters, and motor drive freewheeling circuits requiring stable component supply, automotive-grade reliability, and high-current superfast rectification.

Supply support for SF3008PTH 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 automotive, industrial, and computing markets since 1979.

The SF300xPT family targets high-reliability power conversion systems, emphasizing AEC-Q101 qualification, low-loss superfast recovery, and rugged packaging for harsh-environment rectification in EV, renewable energy, and factory automation.

FAQ

What does the "H" suffix in SF3008PTH signify?

The "H" suffix in SF3008PTH indicates full AEC-Q101 qualification, including stress testing for temperature cycling, humidity bias, and high-temperature operating life. This certification confirms SF3008PTH's suitability for automotive powertrain and charging applications where reliability under thermal and mechanical stress is mandatory.

Is SF3008PTH pin-compatible with SF3008PT?

Yes, SF3008PTH shares identical TO-247AD (TO-3P) mechanical footprint, pinout, and electrical specifications with SF3008PT-the only difference is AEC-Q101 qualification. Both use Anode 1 / Cathode (tab) / Anode 2 terminal arrangement and require the same PCB layout and thermal interface design.

What is the maximum recommended case temperature for continuous operation of SF3008PTH?

The SF3008PTH supports continuous operation up to 150°C junction temperature. With R_θJC = 1.0 °C/W, maintaining case temperature ≤120°C ensures safe margin under 30 A load. Derating curves confirm 25 A max at 100°C case temperature per Figure 1 in the official TSC datasheet.

Can SF3008PTH replace SF3005PTH in a 300 V design?

No-SF3008PTH is rated for 600 V V_RRM, while SF3005PTH is rated for 300 V. Substituting SF3008PTH into a 300 V design is electrically permissible but may incur higher forward voltage (1.70 V vs. 1.30 V for SF3005PTH), increasing conduction loss by ~15% at 15 A. Use only if thermal margin exists.

Does SF3008PTH require a heatsink in a 30 A application?

Yes-SF3008PTH requires a heatsink for 30 A continuous operation. At 30 A and 1.70 V V_F, power dissipation exceeds 51 W. With R_θJC = 1.0 °C/W, even a modest 2.0 °C/W heatsink yields ~153°C junction temperature-exceeding the 150°C limit. A ≥1.5 °C/W heatsink with forced airflow is recommended for full-load reliability.