Taiwan Semiconductor Corporation MBR1035CTH

Overview

MBR1035CTH from Taiwan Semiconductor is a dual-die AEC-Q101 qualified Schottky barrier rectifier in TO-220AB package, rated for 10A average forward current, 35V repetitive peak reverse voltage, and 120A non-repetitive surge current. It delivers low forward voltage (0.70 V typ. @ 5A, 25°C) and operates up to 150°C junction temperature, enabling high-efficiency power conversion in automotive-grade DC/DC converters.

For engineers reviewing the MBR1035CTH datasheet, MBR1035CTH pinout, MBR1035CTH application, or MBR1035CTH equivalent, key selection criteria include its AEC-Q101 qualification, dual-common-cathode configuration, 1.5°C/W junction-to-case thermal resistance, and compatibility with high-surge, low-loss SMPS designs requiring robust thermal performance and RoHS/halogen-free compliance.

Technical Context

This device integrates two independent Schottky diodes in a single TO-220AB package with common cathode connection, supporting dual-output or interleaved rectification topologies. Its guard ring structure provides overvoltage protection, while the matte tin-plated leads ensure solderability per J-STD-002 and whisker resistance per JESD 201 Class 2.

The MBR1035CTH exhibits low reverse leakage (≤100 µA @ 25°C, ≤15 mA @ 125°C) and fast switching with critical dv/dt rating of 10,000 V/µs, making it suitable for high-frequency switching applications where conduction loss and thermal management are critical.

Key Specifications

Pinout & Package

Package: TO-220AB, 3-terminal, dual-diode common-cathode configuration. Case is electrically connected to cathode terminal. Mounting hole accepts #6 screw; polarity marked on body.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MBR1035CTH, the VS-MBR1035CTH offers identical automotive qualification and performance for supply chain resilience, while the MBR1035CTG trades AEC-Q101 compliance for lower unit cost in non-automotive applications-both require no PCB changes but differ in qualification scope and thermal margin.

Availability

MBR1035CTH is available at Aetrix Electronics and suitable for automotive DC/DC converters, industrial switching mode power supplies, and telecom power shelf rectification requiring stable component supply across multi-year production cycles.

Supply support for MBR1035CTH 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 automotive, industrial, and computing markets since 1979.

The MBR1035CTH belongs to TSC's AEC-Q101-qualified Schottky rectifier product line, engineered specifically for high-reliability, high-efficiency secondary-side rectification in harsh-environment power conversion systems.

FAQ

What does the "H" suffix in MBR1035CTH signify?

The "H" suffix in MBR1035CTH indicates full AEC-Q101 qualification per Rev D standards, covering stress tests including high-temperature reverse bias, temperature cycling, and unbiased highly accelerated stress testing. This certification confirms MBR1035CTH's suitability for automotive powertrain and chassis applications where reliability under thermal and mechanical stress is mandatory.

Is MBR1035CTH pin-compatible with non-AEC-Q101 versions like MBR1035CT?

Yes, MBR1035CTH is mechanically and electrically pin-compatible with MBR1035CT-both use identical TO-220AB packaging, dual-common-cathode pinout, and share all absolute maximum ratings and electrical specifications. The only distinction is the AEC-Q101 qualification and associated process controls; no PCB or schematic changes are required when upgrading to MBR1035CTH.

What is the thermal performance of MBR1035CTH when mounted to a heatsink?

With proper mounting torque (≤0.56 N·m) and thermal interface material, MBR1035CTH achieves a junction-to-case thermal resistance of 1.5°C/W. At 10A continuous current and 0.70 V forward drop, power dissipation is ~7W; this results in a ~10.5°C junction-to-case temperature rise above heatsink temperature, enabling reliable operation up to 140°C case temperature within its 150°C TJ limit.

Can MBR1035CTH be used in parallel configurations for higher current handling?

MBR1035CTH supports parallel operation with current-sharing resistors due to its positive temperature coefficient of forward voltage. However, its dual-die structure is optimized for independent leg use-not for paralleling multiple MBR1035CTH units. For >10A applications, consider higher-rated variants like MBR1045CTH or MBR1060CTH rather than paralleling.

Does MBR1035CTH meet halogen-free requirements per IEC 61249-2-21?

Yes, MBR1035CTH complies with IEC 61249-2-21 for halogen-free printed wiring board materials, confirmed by TSC's material declarations. The molding compound contains no chlorine or bromine-based flame retardants, and the matte tin plating is lead-free and RoHS-compliant-making MBR1035CTH suitable for environmentally regulated industrial and automotive programs.