Taiwan Semiconductor Corporation SR1660PT

Overview

SR1660PT from Taiwan Semiconductor is a 16A, 60V repetitive peak reverse voltage Schottky barrier rectifier in TO-247AD (TO-3P) package, featuring 0.70V typical forward voltage at 8A/25°C, 200A surge capability, and AEC-Q101 qualification option. It serves as a high-efficiency output rectifier in DC–DC converters and switching power supplies for industrial and consumer electronics.

For engineers reviewing the SR1660PT datasheet, SR1660PT pinout, SR1660PT application, or SR1660PT equivalent, key selection criteria include V_RRM = 60 V, I_F = 16 A continuous, R_θJC = 3 °C/W thermal resistance, TJ max = 125 °C (standard), and dual-die configuration enabling parallel conduction paths without external balancing.

Technical Context

The SR1660PT implements a dual-die Schottky structure housed in a single TO-247AD case, delivering 16A average forward current with low conduction loss. Its 60V V_RRM rating targets mid-voltage SMPS outputs, while the 200A non-repetitive surge rating supports transient load conditions in adapters and monitors.

Thermally, it achieves 3 °C/W junction-to-case resistance via copper leadframe and optimized die attach-critical for maintaining T_J ≤ 125 °C under full-load operation. Reverse leakage is limited to 500 µA at 25 °C and 10 mA at 100 °C, ensuring stable blocking in high-temperature environments.

Key Specifications

Pinout & Package

Package: TO-247AD (TO-3P), 3-terminal through-hole package with isolated tab (cathode-connected case), matte tin-plated leads, UL 94V-0 molding compound, and 5.60 g mass.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VS-16CTQ060 and MUR1660CT, the SR1660PT uniquely combines dual-die thermal management, AEC-Q101 readiness, and industry-leading 0.70 V forward drop-making it optimal for thermally constrained, high-efficiency, and automotive-qualified power stages.

Availability

SR1660PT is available at Aetrix Electronics and suitable for switching mode power supplies, DC–DC converters, and AC–DC adapters requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.

Supply support for SR1660PT 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 since 1979.

The SR-series Schottky rectifiers are engineered for high-efficiency, high-reliability power conversion in industrial, computing, and consumer applications-emphasizing low V_F, robust surge handling, and automotive-qualified variants.

FAQ

What is the maximum junction temperature for SR1660PT?

The SR1660PT has a maximum junction temperature of 125 °C under standard qualification. This rating applies to the base version; AEC-Q101 qualified variants (SR1660PTH) extend T_J max to 150 °C. Thermal design must ensure that actual operating T_J remains below this limit using the published R_θJC = 3 °C/W and appropriate heatsinking. Exceeding 125 °C continuously degrades long-term reliability of the SR1660PT.

Is SR1660PT pin-compatible with other SR16xPT series parts?

Yes, all SR16xPT parts-including SR1620PT, SR1630PT, SR1640PT, SR1650PT, SR1660PT, SR1690PT, SR16100PT, and SR16150PT-share identical TO-247AD (TO-3P) mechanical outline, pin assignment, and terminal geometry. The only differences are V_RRM rating and corresponding forward voltage/reverse leakage values. This allows direct substitution within the same board layout when voltage requirements change.

Does SR1660PT have an AEC-Q101 qualified version?

Yes, the AEC-Q101 qualified version is designated SR1660PTH. It undergoes extended stress testing including high-temperature operating life (HTOL), temperature cycling (TC), and high-temperature reverse bias (HTRB), meeting automotive electronic component reliability standards. The "H" suffix explicitly denotes AEC-Q101 qualification; SR1660PT (without "H") is industrial-grade only.

What is the typical forward voltage of SR1660PT at 16 A?

The datasheet specifies V_F = 0.70 V typical at I_F = 8 A and T_J = 25 °C. At full rated current (16 A), V_F increases due to resistive and thermal effects-measured data shows ~0.82–0.88 V at 16 A and T_J = 100 °C. Designers should use the derated V_F curve from Figure 4 in the SR1620PT–SR16150PT datasheet to size thermal solutions for the SR1660PT.

How is the TO-247AD tab connected internally in SR1660PT?

In the SR1660PT, the metal tab is electrically connected to the cathode terminal (Lead 2). This is confirmed by the marking diagram, mechanical drawings, and standard TO-247AD configuration for Schottky rectifiers. When mounted to a heatsink, the tab must be electrically isolated unless the system design intentionally references the cathode to chassis ground. Failure to insulate may cause short circuits in floating-output topologies.