Taiwan Semiconductor Corporation MBRF3050CTH

Overview

MBRF3050CTH from Taiwan Semiconductor is a 30A, 50V dual-die Schottky barrier rectifier in ITO-220AB package, featuring 0.75V max forward voltage at 15A/25°C and 0.78V at 30A/125°C, with 200A surge capability and AEC-Q101 qualification for automotive power conversion.

For engineers reviewing the MBRF3050CTH datasheet, MBRF3050CTH pinout, MBRF3050CTH application, or MBRF3050CTH equivalent, key selection criteria include its 50V VRRM rating, low thermal resistance (4°C/W), guard-ring overvoltage protection, and suitability for high-efficiency DC-DC converters requiring AEC-Q101 compliance.

Technical Context

This dual-common-cathode Schottky rectifier integrates two independent 30A diodes sharing one cathode terminal, enabling synchronous rectification or dual-output configurations. Its junction-to-case thermal resistance of 4°C/W supports high-power density designs without forced airflow.

The device operates across -55°C to +150°C junction temperature range and sustains 200A non-repetitive surge current (8.3ms half-sine) while maintaining ≤0.90V forward drop at full 30A load and 125°C - critical for thermally constrained automotive SMPS.

Key Specifications

Pinout & Package

Package: ITO-220AB - insulated TO-220 variant with molded plastic body, matte tin-plated leads, UL 94V-0 rated compound, and 0.56 N·m max mounting torque. 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-30CPH05-M3 and MBR3050CT, the MBRF3050CTH uniquely delivers AEC-Q101 qualification, halogen-free construction, and tighter VF tolerance - making it the only option qualified for under-hood automotive use without design revalidation.

Availability

MBRF3050CTH is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial SMPS secondary-side rectification, and telecom rectifier modules requiring stable component supply, long-term lifecycle support, and traceable AEC-Q101-compliant sourcing.

Supply support for MBRF3050CTH 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, serving global automotive, industrial, and computing markets since 1979.

The MBRF30xxCTH series was developed specifically for AEC-Q101-compliant high-current Schottky rectification in automotive power systems, emphasizing thermal robustness, surge resilience, and process-controlled low-leakage performance.

FAQ

What is the maximum junction temperature rating for MBRF3050CTH?

The MBRF3050CTH has a maximum junction temperature (TJ max) of +150°C, validated across its full operating range from -55°C to +150°C. This rating enables reliable operation in under-hood automotive environments and high-ambient industrial applications. The device's 4°C/W junction-to-case thermal resistance allows effective heat transfer to external heatsinks, supporting sustained 30A conduction without exceeding TJ max under typical cooling conditions. MBRF3050CTH must be mounted with ≤0.56 N·m torque to maintain thermal interface integrity.

Is MBRF3050CTH pin-compatible with non-AEC-Q101 versions like MBR3050CT?

Yes, MBRF3050CTH is mechanically and electrically pin-compatible with MBR3050CT - both use identical ITO-220AB packaging, dual-anode/common-cathode pinout, and share the same absolute maximum ratings and electrical specifications. However, MBRF3050CTH adds AEC-Q101 qualification, halogen-free materials, and enhanced process controls for automotive reliability. No PCB layout changes are needed when upgrading from MBR3050CT to MBRF3050CTH, though qualification documentation must be updated per automotive program requirements.

What is the forward voltage specification for MBRF3050CTH at full load and elevated temperature?

At 30A forward current and 125°C junction temperature, MBRF3050CTH has a maximum forward voltage (VF) of 0.90V per diode. This value is confirmed in the manufacturer's electrical specifications table and reflects real-world conduction loss under worst-case thermal conditions. At 15A/25°C, VF is ≤0.75V. These tightly controlled VF values ensure predictable power dissipation and thermal management in high-efficiency DC-DC converters where MBRF3050CTH is deployed.

Does MBRF3050CTH include overvoltage protection features?

Yes, MBRF3050CTH incorporates a guard ring structure specifically designed to prevent edge breakdown during transient overvoltage events. This feature enhances ruggedness against line surges and switching spikes common in automotive and industrial power systems. While not a clamping device like a TVS, the guard ring extends the device's reliable operating range beyond its rated 50V VRRM, improving system-level immunity without requiring additional external protection components in many applications.

What packaging and marking information applies to MBRF3050CTH?

MBRF3050CTH is supplied in ITO-220AB packages, packed 50 units per tube. The device marking includes "MBRF3050CTH" as the primary code, along with date code (YWW format), factory code (F), and green compound indicator (G). Matte tin-plated leads comply with J-STD-002 for solderability, and the molding compound meets UL 94V-0 flammability standards. Polarity is marked on the case, with Pin 1 and Pin 3 as anodes and Pin 2 as the common cathode.