Taiwan Semiconductor Corporation MBRF1035CTH

Overview

MBRF1035CTH from Taiwan Semiconductor is a dual-die AEC-Q101-qualified Schottky barrier rectifier in ITO-220AB package, rated for 10A average forward current, 35V repetitive peak reverse voltage, and 120A non-repetitive surge current at 8.3ms. It delivers low forward voltage (0.70V max at 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 MBRF1035CTH datasheet, MBRF1035CTH pinout, MBRF1035CTH application, or MBRF1035CTH equivalent, key selection criteria include its AEC-Q101 qualification, 3.5°C/W junction-to-case thermal resistance, guard-ring overvoltage protection, 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 ITO-220AB thermally enhanced package with isolated cathodes (common anode configuration confirmed by marking diagram and dual-die designation). Its low V_F and high I_FSM support high-frequency switching topologies where conduction loss minimization and transient overload resilience are critical.

The guard ring structure provides intrinsic overvoltage ruggedness, while the matte tin-plated leads meet J-STD-002 solderability and JESD201 Class 2 whisker resistance requirements - essential for automotive under-hood applications subject to thermal cycling and mechanical stress.

Key Specifications

Pinout & Package

Package: ITO-220AB - thermally optimized plastic package with integral metal tab for direct heatsink mounting; UL 94V-0 rated molding compound; 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-MBR1035CTH and MBR1035CT, the MBRF1035CTH uniquely combines AEC-Q101 qualification, halogen-free construction, and lowest published V_F (0.70V) in its voltage class - making it optimal for thermally constrained automotive modules requiring maximum efficiency and regulatory compliance.

Availability

MBRF1035CTH is available at Aetrix Electronics and suitable for automotive DC/DC converters, industrial SMPS outputs, and medical power adapters requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for MBRF1035CTH 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 MBRF1035CTH belongs to TSC's AEC-Q101-qualified Schottky rectifier product line, engineered specifically for high-reliability automotive power conversion where thermal robustness, surge immunity, and environmental compliance are mandatory.

FAQ

What does the "H" suffix in MBRF1035CTH signify?

The "H" suffix in MBRF1035CTH indicates full AEC-Q101 qualification, including stress testing for temperature cycling, humidity bias, high-temperature operating life, and mechanical shock. This distinguishes MBRF1035CTH from the standard MBRF1035CT and confirms its suitability for automotive under-hood and safety-critical applications. The MBRF1035CTH also carries halogen-free certification per IEC 61249-2-21.

Is MBRF1035CTH pin-compatible with MBRF1035CT?

Yes, MBRF1035CTH is mechanically and electrically pin-compatible with MBRF1035CT - both use the ITO-220AB package with identical pinout (common anode tab, two isolated cathodes). However, MBRF1035CTH adds AEC-Q101 qualification, halogen-free materials, and tighter process controls; no PCB layout changes are needed when upgrading from MBRF1035CT to MBRF1035CTH.

What is the maximum recommended mounting torque for the MBRF1035CTH tab?

The maximum mounting torque for the MBRF1035CTH ITO-220AB metal tab is 0.56 N·m, as specified in the mechanical data section. Exceeding this value risks cracking the package molding compound or damaging internal wire bonds. Use a calibrated torque screwdriver and thermal interface material compatible with matte tin plating to ensure optimal thermal transfer and mechanical reliability.

Does MBRF1035CTH support parallel operation for higher current handling?

MBRF1035CTH is not recommended for direct parallel operation without external balancing components due to inherent V_F mismatch between dies and units. While its dual-die structure enables independent cathode routing, paralleling multiple MBRF1035CTH units requires individual current-sharing resistors or active balancing to prevent thermal runaway. For >10A applications, consider higher-rated alternatives like MBRF2035CTH instead.

What is the reverse leakage current of MBRF1035CTH at 125°C?

The reverse leakage current of MBRF1035CTH is 15 mA maximum per diode at rated V_RRM = 35 V and junction temperature T_J = 125°C, as specified in the electrical characteristics table. This value reflects worst-case behavior under high-temperature stress and must be accounted for in low-power standby designs where total system quiescent current is tightly constrained.