Taiwan Semiconductor Corporation MBR1590CTH

Overview

MBR1590CTH from Taiwan Semiconductor is a 15A, 90V dual-die Schottky barrier rectifier in TO-220AB package, featuring 0.92V max forward voltage at 7.5A/25°C, 150A surge capability, and AEC-Q101 qualification for automotive-grade reliability in high-efficiency DC/DC converters.

For engineers reviewing the MBR1590CTH datasheet, MBR1590CTH pinout, MBR1590CTH application, or MBR1590CTH equivalent, key selection criteria include repetitive peak reverse voltage (90 V), junction-to-case thermal resistance (1.5 °C/W), low IR (100 µA @ 90 V, 25°C), and AEC-Q101 qualification status - all critical for thermal management and automotive power supply design.

Technical Context

This device integrates two independent Schottky diodes in a single TO-220AB package with common-cathode configuration, enabling synchronous rectification or dual-output DC/DC topologies. Its guard ring structure provides overvoltage protection, and dv/dt rating of 10,000 V/μs supports fast-switching environments.

Designed for operation from –55°C to +150°C junction temperature, it delivers stable performance under high ambient conditions typical in engine bay or industrial power modules, with R_θJC = 1.5 °C/W ensuring efficient heat transfer to heatsinks.

Key Specifications

Pinout & Package

Package: TO-220AB, 3-terminal, common-cathode dual-diode configuration. Matte tin-plated leads, UL 94V-0 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 MBR1590CTH, VS-MBR1590CT offers lower cost but no automotive qualification, while MBR1590CTG matches all critical electrical and qualification parameters - making it a drop-in alternative for AEC-Q101-compliant designs requiring dual sourcing.

Availability

MBR1590CTH is available at Aetrix Electronics and suitable for automotive DC/DC converters, industrial SMPS outputs, and telecom power adapters requiring stable component supply with AEC-Q101 compliance and thermal reliability.

Supply support for MBR1590CTH 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 automotive, industrial, and consumer markets since 1979.

The MBR1590CTH belongs to TSC's AEC-Q101-qualified Schottky rectifier product line, engineered specifically for high-efficiency, high-reliability power conversion in harsh-environment automotive and industrial applications.

FAQ

What is the maximum junction temperature rating for MBR1590CTH?

The MBR1590CTH has a maximum junction temperature (T_J) of +150°C, validated across its full operating range from –55°C to +150°C. This rating is supported by its 1.5 °C/W junction-to-case thermal resistance and TO-220AB package construction, enabling reliable operation in under-hood automotive environments and sealed industrial enclosures where ambient temperatures exceed 85°C. Thermal derating curves confirm sustained 15A operation up to 100°C case temperature.

Is MBR1590CTH pin-compatible with MBR1590CT?

Yes, MBR1590CTH is pin-compatible with MBR1590CT - both use identical TO-220AB packaging, common-cathode pinout (Anode1–Cathode–Anode2), and mechanical dimensions. The "H" suffix denotes AEC-Q101 qualification, while electrical specifications including V_RRM, I_F, V_F, and thermal resistance are identical. No PCB layout changes are required when upgrading from MBR1590CT to MBR1590CTH for automotive applications.

What does the "H" suffix mean in MBR1590CTH?

The "H" suffix in MBR1590CTH indicates full AEC-Q101 qualification per Rev D requirements, including HTOL, temperature cycling, HTRB, and ESD testing. Unlike standard MBR1590CT, MBR1590CTH undergoes additional process controls, lot-level traceability, and failure analysis protocols mandated for automotive power semiconductors. This makes MBR1590CTH suitable for safety-critical 12V/48V vehicle subsystems where component reliability is contractually enforced.

What is the reverse leakage current specification for MBR1590CTH at elevated temperature?

At rated 90V reverse voltage and 125°C junction temperature, MBR1590CTH exhibits a maximum reverse leakage current (I_R) of 5 mA - measured per diode under pulse conditions (PW = 30 ms). This value is confirmed in the official Taiwan Semiconductor datasheet Version I2104, page 3. At 25°C, leakage is limited to 100 µA, supporting low-quiescent-power designs in always-on automotive modules.

Can MBR1590CTH be used in synchronous rectification topologies?

Yes, MBR1590CTH is suitable for synchronous rectification in medium-frequency (≤500 kHz) DC/DC converters due to its low forward voltage (0.92V max @ 7.5A/25°C), fast recovery characteristics inherent to Schottky architecture, and 10,000 V/μs dv/dt rating. Its dual-die common-cathode configuration simplifies gate-drive routing in center-tapped or full-bridge secondary designs, though external MOSFETs are required for true synchronous control - MBR1590CTH serves as the passive rectification element in hybrid or freewheeling roles.