Taiwan Semiconductor Corporation MBRAD15100H

Overview

MBRAD15100H from Taiwan Semiconductor is a 15 A, 100 V Schottky barrier rectifier in ThinDPAK package, designed for low-loss freewheeling and reverse battery protection in automotive DC/DC converters and car lighting systems. It features 0.81 V forward voltage at 15 A/25°C, 250 A surge capability, and AEC-Q101 qualification.

For engineers reviewing the MBRAD15100H datasheet, MBRAD15100H pinout, MBRAD15100H application, or MBRAD15100H equivalent, key selection criteria include junction-to-lead thermal resistance (2.2°C/W), TJ max of 150°C, moisture sensitivity level 1, RoHS/halogen-free compliance, and ThinDPAK mechanical compatibility with automated SMT placement.

Technical Context

This Schottky rectifier uses a single-die construction optimized for high-frequency switching in automotive power stages. Its low VF (0.68 V typ. @ 15 A/125°C) and fast recovery enable high-efficiency operation in 100 kHz–1 MHz DC/DC topologies without reverse recovery loss.

The device's thermal design leverages the ThinDPAK package's low RθJL (2.2°C/W with ideal heatsink) and RθJC (2.6°C/W), supporting continuous 15 A conduction at ambient up to 90°C when mounted on a 2" × 3" × 0.25" aluminum plate.

Key Specifications

Pinout & Package

Package: ThinDPAK (JEDEC TO-252 variation AE), surface-mount, 3-terminal configuration with cathode band marking. Matte tin-plated leads meet 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-MBR15100CT-M3/45 and MBR15100CT, the MBRAD15100H delivers superior board-level thermal performance (RθJL = 2.2°C/W), eliminates heatsink dependency, supports automated SMT, and provides documented AEC-Q101 validation-critical for next-generation automotive power modules.

Availability

MBRAD15100H is available at Aetrix Electronics and suitable for automotive DC/DC converters, reverse battery protection circuits, and car lighting drivers requiring stable component supply across extended production lifecycles.

Supply support for MBRAD15100H 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 semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving global automotive, industrial, and consumer markets since 1979.

The MBRAD15100H belongs to TSC's AEC-Q101-qualified Schottky rectifier product line, engineered specifically for high-reliability 12 V automotive power conversion where low VF, high surge tolerance, and SMT manufacturability are essential.

FAQ

What is the marking code printed on the MBRAD15100H device body?

The MBRAD15100H is laser-marked with "15100" on its package surface, per the Absolute Maximum Ratings table in the official datasheet revision A2303. This 5-digit code identifies the voltage (100 V) and current (15 A) rating and distinguishes it from other variants in the MBRAD family. No date code or factory code appears in the primary marking.

Does the MBRAD15100H have a built-in thermal shutdown function?

No, the MBRAD15100H is a passive Schottky rectifier and does not include thermal shutdown circuitry. Protection relies on external thermal design-its 150°C maximum junction temperature and 2.2°C/W junction-to-lead thermal resistance require proper PCB copper area or heatsinking to maintain safe operating temperature under 15 A load. System-level thermal monitoring must be implemented externally.

Is the MBRAD15100H suitable for use in synchronous rectification topologies?

Yes, the MBRAD15100H is appropriate for asynchronous rectification in buck, boost, and flyback converters. However, it is not intended for synchronous rectification, which requires actively controlled MOSFETs. Its 378 pF junction capacitance and lack of gate drive interface make it incompatible with synchronous controller ICs-use only as a freewheeling or output rectifier in non-synchronous designs.

What is the recommended reflow profile for the MBRAD15100H ThinDPAK package?

The MBRAD15100H has Moisture Sensitivity Level 1 per J-STD-020, so no pre-bake is required. Reflow must follow IPC/JEDEC J-STD-020D: peak temperature ≤260°C, time above 217°C = 60–150 seconds, ramp-up rate ≤3°C/s. The matte tin-plated leads ensure compatibility with both leaded and lead-free solder pastes per J-STD-002B.

Can the MBRAD15100H replace a standard PN-junction rectifier in an existing 12 V automotive design?

Yes-the MBRAD15100H can directly replace 15 A, 100 V PN rectifiers (e.g., 1N5408 variants) in most 12 V automotive circuits. Its lower VF reduces conduction loss by ~30%, but note the cathode-tab pinout differs from TO-220 devices: the exposed tab is cathode, not isolated. PCB layout must verify polarity and thermal pad connectivity before substitution.