Taiwan Semiconductor Corporation MBRF25150CT-Y

Overview

MBRF25150CT-Y from Taiwan Semiconductor is a 25A, 150V dual-die Schottky barrier rectifier in ITO-220AB package, featuring 0.95V forward voltage at 12.5A/25°C and 5µA reverse leakage at 150V/125°C, used in high-efficiency DC-DC converters and industrial SMPS front-end rectification.

For engineers reviewing the MBRF25150CT-Y datasheet, MBRF25150CT-Y pinout, MBRF25150CT-Y application, or MBRF25150CT-Y equivalent, key selection factors include its 150V V_RRM, dual-common-cathode configuration, 200A non-repetitive surge rating, junction-to-case thermal resistance of 1°C/W, and RoHS/halogen-free compliance for power supply design validation.

Technical Context

This dual-die Schottky rectifier integrates two independent 25A diodes sharing a common cathode terminal, enabling full-wave bridge input or dual-output synchronous rectification. Its guard ring structure provides overvoltage protection, and the ITO-220AB package supports direct heatsink mounting with 0.56 N·m max torque.

The device operates across –55°C to +150°C junction temperature range, delivers 10,000 V/µs dv/dt immunity, and maintains low conduction loss via optimized metal-semiconductor interface-critical for 100–500 kHz switching power supplies where forward voltage and thermal resistance directly impact efficiency and thermal margin.

Key Specifications

Pinout & Package

Package: ITO-220AB - Insulated TO-220 variant with internal isolation between leads and case, matte tin-plated leads compliant with J-STD-002, UL 94V-0 molding compound, and 1.70 g typical weight.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VS-25CPH15 and MBR25150CT, MBRF25150CT-Y delivers the lowest forward voltage among 150V/25A dual Schottkys while maintaining full regulatory compliance-making it optimal for thermally constrained, high-efficiency, and export-targeted power designs.

Availability

MBRF25150CT-Y is available at Aetrix Electronics and suitable for server power supplies, industrial DC-DC converters, and telecom rectifier modules requiring stable component supply, long-term lifecycle support, and guaranteed halogen-free material compliance.

Supply support for MBRF25150CT-Y 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 industrial, computing, and communications markets since 1979.

The MBRF25xxCT-Y series targets high-efficiency AC-DC and DC-DC power conversion, emphasizing low V_F, robust surge capability, and environmentally compliant packaging for next-generation power supply designs.

FAQ

What is the maximum junction temperature rating for MBRF25150CT-Y?

The MBRF25150CT-Y has a maximum junction temperature (T_J) of +150°C, with operational range from –55°C to +150°C. This rating is validated under specified thermal conditions including R_θJC = 1°C/W and proper heatsinking. Derating curves in the official datasheet define safe operating current versus case temperature, and operation beyond 150°C risks permanent parametric shift or failure. Always reference the MBRF25150CT-Y thermal derating chart for design margining.

Does MBRF25150CT-Y support full-wave rectification without external components?

Yes, MBRF25150CT-Y supports full-wave rectification natively via its dual-anode, common-cathode configuration. Pins 1 and 3 serve as independent anodes, while Pin 2 is the shared cathode-enabling direct implementation of center-tapped transformer or dual-phase input rectification. No external diodes or balancing resistors are needed, reducing bill-of-materials count and PCB area versus discrete solutions. The MBRF25150CT-Y's internal die matching ensures balanced current sharing under matched thermal conditions.

Is MBRF25150CT-Y pin-compatible with MBRF25100CT-Y?

Yes, MBRF25150CT-Y is mechanically and electrically pin-compatible with MBRF25100CT-Y and other members of the MBRF25xxCT-Y family. All share identical ITO-220AB package dimensions, pin assignment (Anode1–Cathode–Anode2), marking layout, and mounting specifications-including 0.56 N·m max torque and UL 94V-0 compound. However, V_RRM differs (100 V vs. 150 V), so substitution requires verification of reverse voltage margin in the target circuit to avoid overstress.

What is the reverse leakage current of MBRF25150CT-Y at elevated temperature?

At rated 150 V reverse voltage and 125°C junction temperature, the MBRF25150CT-Y exhibits a maximum reverse leakage current (I_R) of 5 µA per diode. This value is measured under standardized pulse conditions (30 ms PW) and reflects stable, low-loss behavior critical for high-temperature hold-up and standby operation. At 25°C and 150 V, I_R is ≤100 µA-confirming tight process control across the MBRF25150CT-Y production lot.

How does the guard ring feature improve reliability in MBRF25150CT-Y?

The guard ring in MBRF25150CT-Y is a diffused semiconductor structure surrounding the active Schottky junction that controls electric field distribution during voltage transients. It prevents localized avalanche breakdown at edge defects, increasing ruggedness against line surges and ESD events. In practice, this extends lifetime in unregulated input stages and improves consistency in high-dv/dt environments-verified by MBRF25150CT-Y's 10,000 V/µs rated critical rate of rise of off-state voltage.