Taiwan Semiconductor Corporation SF1601PTH

Overview

SF1601PTH from Taiwan Semiconductor is a dual-die, positive-center-tap superfast rectifier in TO-247AD (TO-3P) package, rated for 16 A average forward current, 50 V repetitive peak reverse voltage, and 150 A non-repetitive surge current. It delivers 0.95 V typical forward voltage at 8 A and 25 °C, with 35 ns reverse recovery time and 2 °C/W junction-to-case thermal resistance - optimized for high-efficiency DC-DC converters.

For engineers reviewing the SF1601PTH datasheet, SF1601PTH pinout, SF1601PTH application, or SF1601PTH equivalent, key selection criteria include its AEC-Q101 qualification, center-tap dual-diode configuration, low VF/low trr trade-off at 50 V rating, and thermal performance in high-power switching topologies requiring fast recovery and minimal conduction loss.

Technical Context

The SF1601PTH integrates two identical silicon die in a single TO-247AD package with shared cathode connection and isolated anodes - forming a center-tapped dual rectifier topology. Its glass-passivated junction enables stable operation up to 150 °C junction temperature and supports high-reliability automotive and industrial environments.

Designed for hard-switching applications, it achieves 35 ns reverse recovery time under IF = 0.5 A / IR = 1.0 A / Irr = 0.25 A test conditions, with 85 pF junction capacitance per diode at 1 MHz and 4 V reverse bias - balancing speed, voltage rating, and thermal dissipation for snubber-free flyback and forward converter designs.

Key Specifications

Pinout & Package

Package: TO-247AD (TO-3P), 3-terminal, isolated anode–anode–cathode layout with center-tapped cathode terminal. Matte tin-plated leads, UL 94V-0 molding compound, 5.6 g mass.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STTH1602CW and MBR1650CT, the SF1601PTH uniquely combines AEC-Q101 qualification, 50 V/0.95 V/35 ns optimization, and 150 °C junction rating - making it the only choice for automotive-grade, thermally constrained, low-voltage fast rectification requiring long-term reliability.

Availability

SF1601PTH is available at Aetrix Electronics and suitable for DC-DC converters, switching mode inverters, and LED drivers requiring stable component supply with automotive-grade qualification and consistent thermal performance.

Supply support for SF1601PTH 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 automotive, industrial, and computing markets since 1979.

The SF1601PTH belongs to TSC's SFxxPT superfast rectifier family, engineered specifically for high-frequency, high-reliability power conversion where low VF, fast trr, and robust thermal design must coexist in automotive-qualified packages.

FAQ

What is the maximum junction temperature rating for the SF1601PTH?

The SF1601PTH has a maximum junction temperature (TJ MAX) of +150 °C, verified per AEC-Q101 stress testing. This allows sustained operation in engine bay or enclosed industrial environments where case temperatures reach 100–120 °C, provided thermal design maintains RθJC ≤ 2 °C/W and sufficient heatsinking. The SF1601PTH's glass-passivated junction ensures parameter stability across this full range.

Is the SF1601PTH pin-compatible with other parts in the SF160xPT series?

Yes - all SF160xPT and SF160xPTH variants share identical TO-247AD (TO-3P) mechanical footprint, pinout (A1–A2–K), and thermal pad layout. However, electrical parameters differ: SF1601PTH is rated for 50 V VRRM and 0.95 V VF, while SF1602PTH starts at 100 V. PCB layout may be reused, but voltage derating and thermal validation must be rechecked per variant.

Does the "H" suffix in SF1601PTH indicate full AEC-Q101 qualification?

Yes - the "H" suffix explicitly denotes AEC-Q101 qualification per Rev G2103 documentation. The SF1601PTH undergoes temperature cycling, high-temperature reverse bias (HTRB), and unbiased highly accelerated stress test (UHAST) per AEC-Q101-004/005/011. This certification applies to the full production lot, not just sample units, and is documented in TSC's qualification report for SF160xPTH.

What is the reverse recovery time test condition for the SF1601PTH?

The SF1601PTH reverse recovery time (trr) is measured at IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A, per JEDEC JESD282B. This reflects real-world switching behavior in discontinuous conduction mode (DCM) flyback converters. The 35 ns max value is guaranteed across –55 °C to +125 °C operating junction temperature, ensuring consistent timing margins in automotive thermal profiles.

How does the SF1601PTH's dual-die configuration affect thermal performance?

The SF1601PTH's dual-die structure shares a common thermal path to the TO-247AD case, resulting in a single RθJC of 2 °C/W for the entire device - not per die. This means both diodes contribute jointly to junction heating, requiring total power dissipation (2 × VF × IF) to be used in thermal calculations. The symmetric layout minimizes thermal gradients and avoids localized hot spots common in discrete dual-diode solutions.