Taiwan Semiconductor Corporation MBR40100PTH

Overview

MBR40100PTH from Taiwan Semiconductor is a 40A, 100V AEC-Q101-qualified Schottky barrier rectifier in TO-247AD package, featuring 0.84V max forward voltage at 20A/25°C, 330A surge current capability, and guard ring overvoltage protection for automotive-grade power conversion.

For engineers reviewing the MBR40100PTH datasheet, MBR40100PTH pinout, MBR40100PTH application, or MBR40100PTH equivalent, key selection criteria include peak reverse voltage (100 V), thermal resistance (1.2 °C/W), junction temperature range (–55 to +150 °C), and AEC-Q101 qualification status for under-hood reliability.

Technical Context

This dual-die Schottky rectifier operates with low conduction loss and high switching efficiency due to its metal–semiconductor junction, enabling zero minority-carrier storage and eliminating reverse recovery time. It supports continuous 40A DC forward current and withstands 8.3ms half-sine surge peaks up to 330A.

The device integrates a guard ring structure to enhance ruggedness against transient overvoltage events and meets UL 94V-0 flammability requirements in its TO-247AD molded package. Its 1.2 °C/W junction-to-case thermal resistance enables direct heatsink mounting for high-power SMPS and DC–DC converter designs.

Key Specifications

Pinout & Package

Package: TO-247AD (TO-3P) - Isolated tab, 3-terminal through-hole power package with matte tin-plated leads compliant with J-STD-002 solderability and JESD201 Class 2 whisker resistance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VS-MBR40100CT and MBR40100CT, the MBR40100PTH delivers guaranteed AEC-Q101 compliance out-of-box, tighter VF consistency at elevated temperature, and UL recognition-critical for Tier-1 automotive supply chain traceability and safety certification.

Availability

MBR40100PTH is available at Aetrix Electronics and suitable for automotive DC–DC converters, industrial SMPS outputs, and LED driver power stages requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant sourcing.

Supply support for MBR40100PTH 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 Company (TSC) is a vertically integrated analog and power semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving global automotive, industrial, and consumer markets since 1979.

The MBR40100PTH belongs to TSC's AEC-Q101-qualified Schottky rectifier product line, engineered specifically for high-current, high-reliability power conversion in harsh-environment applications including engine bays and industrial controls.

FAQ

What is the maximum junction temperature rating for MBR40100PTH?

The MBR40100PTH has a maximum junction temperature (T_J) of +150 °C and a minimum of –55 °C. This wide operating range enables reliable use in under-hood automotive environments and sealed industrial enclosures. The device's thermal resistance of 1.2 °C/W ensures predictable junction temperature rise under rated load when properly mounted to a heatsink. MBR40100PTH must be operated within this limit to maintain long-term reliability and AEC-Q101 qualification integrity.

Is MBR40100PTH pin-compatible with other TO-247AD Schottky rectifiers?

Yes, MBR40100PTH uses the standard TO-247AD (TO-3P) footprint with three terminals: Anode 1, Cathode (common), and Anode 2. Its pinout matches industry-standard dual-anode Schottky rectifiers in the same package, including Vishay VS-MBR40100CT and ON Semiconductor MBR40100CT. Mechanical compatibility is confirmed per JEDEC outline TO-247AD, but functional equivalence requires verification of voltage rating, forward voltage, and qualification status. MBR40100PTH remains functionally identical in layout.

Does MBR40100PTH have AEC-Q101 qualification?

Yes, MBR40100PTH is explicitly AEC-Q101 qualified, as indicated by the "H" suffix in the ordering code per Taiwan Semiconductor's documentation. This qualification covers stress testing for temperature cycling, humidity bias, high-temperature operating life, and mechanical shock-validating suitability for automotive power systems. The "H" designation is not optional; it is integral to the MBR40100PTH part number and distinguishes it from non-automotive variants like MBR40100PT.

What is the forward voltage specification for MBR40100PTH at full rated current?

At 40A and 25°C junction temperature, the MBR40100PTH has a maximum forward voltage (V_F) of 1.01 V per diode, as specified in the Electrical Specifications table. At 20A and 25°C, V_F is capped at 0.84 V. These values reflect worst-case conduction loss under typical operating conditions and are critical for thermal design and efficiency calculations in high-current power supplies using MBR40100PTH.

How does the guard ring feature improve reliability in MBR40100PTH?

The guard ring in MBR40100PTH is a diffused semiconductor structure surrounding the active junction that suppresses electric field crowding at the die edge. This increases the device's critical rate of rise of off-state voltage (dV/dt) to 10,000 V/µs and enhances ruggedness against transient overvoltage spikes-common in automotive load-dump or inductive switching events. As a result, MBR40100PTH maintains stable blocking behavior without premature avalanche or edge breakdown, directly supporting its AEC-Q101 qualification and long-term reliability in MBR40100PTH-based designs.