Taiwan Semiconductor Corporation SR40100PT C0G

Overview

SR40100PT from Taiwan Semiconductor is a 100 V, 40 A Schottky barrier rectifier in TO-247AD (TO-3P) package with dual-die construction, 0.90 V forward voltage at 20 A and 25°C, 500 µA reverse leakage at rated VR and 25°C, and 400 A surge capability - used in high-efficiency DC/DC converters and industrial SMPS.

For engineers reviewing the SR40100PT datasheet, SR40100PT pinout, SR40100PT application, or SR40100PT equivalent, key selection criteria include peak reverse voltage rating, thermal resistance (1.2°C/W), junction temperature range (–55°C to +150°C), low VF for reduced conduction loss, and AEC-Q101 qualification availability in H-suffix variants.

Technical Context

This device implements a dual-die Schottky architecture optimized for high-current, low-VF rectification in switching power topologies. Its guard ring structure enhances overvoltage robustness, while the TO-247AD package enables direct heatsink mounting and supports high thermal dissipation.

The SR40100PT operates with a maximum junction temperature of +150°C and exhibits 1.2°C/W junction-to-case thermal resistance. Reverse leakage remains ≤500 µA at 100 V and 25°C, rising to 10 mA at 125°C - critical for thermal stability in compact, high-power-density designs.

Key Specifications

Pinout & Package

Package: TO-247AD (TO-3P) - isolated metal tab, three-terminal through-hole package with center anode/cathode configuration and mechanical mounting hole. Matte tin-plated leads meet J-STD-002 solderability and JESD201 Class 2 whisker requirements.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SR40100PT, VS-40CPH10 offers marginally lower VF but less thermal headroom, while MBR40100CT trades package size and qualification for lower cost - making SR40100PT optimal for thermally constrained, high-reliability 100 V rectification where AEC-Q101 or UL recognition matters.

Availability

SR40100PT is available at Aetrix Electronics and suitable for server power supplies, industrial DC/DC converters, flat-panel TV power boards, and automotive infotainment systems requiring stable component supply and long-term manufacturability.

Supply support for SR40100PT 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 devices, rectifiers, and protection components since 1979.

The SR40xxPT series was developed for high-efficiency, high-reliability rectification in industrial and automotive power conversion, emphasizing low VF, rugged surge capability, and qualification-ready variants.

FAQ

What is the maximum junction temperature rating for SR40100PT?

The SR40100PT has a maximum junction temperature (T_J) rating of +150°C, with a storage temperature range of –55°C to +150°C. This extended rating supports operation in high-ambient environments such as enclosed industrial enclosures or under-hood automotive locations. The SR40100PT maintains specified electrical performance up to this limit when thermal design respects its 1.2°C/W R_θJC.

Is SR40100PT available in an AEC-Q101 qualified version?

Yes, the AEC-Q101 qualified version is designated SR40100PTH and shares identical electrical and thermal specifications with SR40100PT. The "H" suffix indicates qualification per AEC-Q101 stress test standards, including HTGB, HTRB, and temperature cycling - required for automotive powertrain and body electronics applications.

What is the forward voltage drop of SR40100PT at rated current?

The SR40100PT exhibits a typical forward voltage (V_F) of 0.90 V at 20 A and 25°C, measured per diode under pulse conditions (PW = 0.3 ms). At 40 A and 125°C, V_F rises to approximately 0.98 V. This low V_F directly reduces conduction losses in high-current DC/DC output stages.

Does SR40100PT have UL recognition?

Yes, SR40100PT is UL Recognized under File #E-326243, confirming compliance with UL/CSA 60950-1 and UL 62368-1 for use in end-equipment power supplies. This recognition applies to both standard and AEC-Q101 (H-suffix) versions and covers flammability (UL 94V-0), terminal solderability, and dielectric strength.

What is the reverse leakage current specification for SR40100PT?

The SR40100PT specifies a maximum reverse leakage current (I_R) of 500 µA at 100 V and 25°C, and 10 mA at 100 V and 125°C. These values are measured per diode under pulse conditions (PW = 30 ms). Low I_R minimizes standby power loss and improves light-load efficiency in always-on power rails.