Taiwan Semiconductor Corporation MBR40100PT

Overview

MBR40100PT from Taiwan Semiconductor is a 40A, 100V dual-die Schottky barrier rectifier in TO-247AD (TO-3P) package, featuring 0.84V max forward voltage at 20A/25°C, 10mA max reverse current at 125°C, and 330A surge capability - deployed in high-efficiency DC-DC converters and industrial SMPS.

For engineers reviewing the MBR40100PT datasheet, MBR40100PT pinout, MBR40100PT application, or MBR40100PT equivalent, key selection criteria include V_RRM = 100V, I_F = 40A continuous, R_θJC = 1.2°C/W thermal resistance, AEC-Q101 qualification option (MBR40100PTH), and TO-247AD mechanical compatibility with heatsink mounting.

Technical Context

This dual-die Schottky rectifier uses guard ring structure for overvoltage protection and achieves low conduction loss via optimized metal-semiconductor junction. Its 10,000 V/μs dV/dt rating supports fast-switching topologies, while the 1.2°C/W junction-to-case thermal resistance enables high-power dissipation in constrained thermal environments.

The device operates across -55°C to +150°C junction temperature range and maintains stable reverse leakage ≤500 µA at 25°C and ≤10 mA at 125°C under rated 100V reverse bias - critical for reliability in automotive-grade power supplies and industrial adapters.

Key Specifications

Pinout & Package

Package: TO-247AD (TO-3P) - isolated-mount, 3-terminal plastic power package with matte tin-plated leads, UL 94V-0 molding compound, and 6.10g mass. Mounting torque ≤1.13 N·m; polarity marked on case.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VS-40CPH10 and MBR40100CT, the MBR40100PT offers superior thermal resistance (1.2°C/W), electrically isolated TO-247AD packaging, and AEC-Q101 qualification path - making it optimal for high-reliability, high-power industrial and automotive rectification where thermal margin and safety isolation are critical.

Availability

MBR40100PT is available at Aetrix Electronics and suitable for server power supplies, industrial DC-DC converters, and automotive onboard chargers requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for MBR40100PT 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 industrial, computing, and automotive markets since 1979.

The MBR40100PT belongs to TSC's high-current Schottky rectifier product line, engineered specifically for high-efficiency, high-reliability secondary-side rectification in switched-mode power supplies where low V_F, robust surge handling, and thermal performance are prioritized.

FAQ

What is the maximum junction temperature rating for MBR40100PT?

The MBR40100PT has a maximum junction temperature (T_J) of +150°C, verified per absolute maximum ratings in the official Taiwan Semiconductor datasheet. This rating allows reliable operation in sealed industrial enclosures and automotive under-hood environments where ambient temperatures approach 105°C. Derating curves confirm usable current capacity down to 25A at 150°C case temperature, ensuring design headroom in thermally aggressive applications.

Does MBR40100PT have AEC-Q101 qualification?

The base MBR40100PT is not AEC-Q101 qualified, but its variant MBR40100PTH is explicitly listed in the ordering information as AEC-Q101 qualified. The "H" suffix denotes automotive-grade stress testing including temperature cycling, humidity bias, and mechanical shock. For automotive applications such as onboard chargers or DC-DC converters, MBR40100PTH must be specified - the standard MBR40100PT lacks this validation.

What is the forward voltage specification for MBR40100PT at full rated current?

Per the Electrical Specifications table, MBR40100PT has a maximum forward voltage (V_F) of 0.84 V at I_F = 20 A and T_J = 25°C. At full 40A rating, the datasheet does not specify V_F - only the 20A condition is guaranteed. Engineers should apply thermal derating and verify actual V_F at 40A using the typical forward characteristics curve (Fig.4), where V_F ≈ 0.92 V at 40A/25°C for the 100V family group.

How does the TO-247AD package of MBR40100PT differ from standard TO-247?

The TO-247AD (also labeled TO-3P) package used by MBR40100PT features an electrically isolated case - unlike standard TO-247AC - allowing direct mounting to a grounded heatsink without insulation hardware. Its leadframe design provides enhanced creepage/clearance and meets UL 94V-0 flammability. Mechanical drawings confirm identical outline dimensions but distinct internal isolation structure, critical for high-voltage industrial and medical power systems.

What is the reverse leakage current of MBR40100PT at elevated temperature?

At rated 100V reverse voltage and T_J = 125°C, MBR40100PT exhibits a maximum reverse current (I_R) of 10 mA, as specified in the Electrical Specifications table. This value is confirmed across the 90V–200V family group and reflects stable Schottky junction behavior under thermal stress. At 25°C, leakage is limited to 500 µA - supporting low-loss standby modes in energy-efficient power supplies.