Taiwan Semiconductor Corporation MBRS1035H

Overview

MBRS1035H from Taiwan Semiconductor is a 10A, 35V Schottky barrier rectifier in TO-263AB (D2PAK) package, AEC-Q101 qualified for automotive use, with 120A surge capability, 2°C/W junction-to-case thermal resistance, and low forward voltage of 0.57V at 10A/125°C - deployed as freewheeling diode in DC/DC converters.

For engineers reviewing the MBRS1035H datasheet, MBRS1035H pinout, MBRS1035H application, or MBRS1035H equivalent, key selection criteria include repetitive peak reverse voltage (35V), forward current rating (10A), thermal performance (R_θJC = 2°C/W), AEC-Q101 qualification status, and TO-263AB mechanical compatibility.

Technical Context

This Schottky rectifier uses a single-die construction optimized for low V_F and high I_FSM, enabling efficient operation in high-frequency switching topologies. Its guard ring structure provides overvoltage protection, and the matte tin-plated leads meet J-STD-002 solderability requirements.

The device operates across -55°C to +175°C junction temperature range with 10,000 V/μs critical dv/dt rating, supporting robust performance in noisy automotive power rails. Moisture sensitivity level is rated at J-STD-020 Level 1 - unrestricted floor life under standard handling conditions.

Key Specifications

Pinout & Package

TO-263AB (D2PAK) package with three terminals: Anode (pin 1), Cathode (pin 2), and exposed metal tab (pin 3, electrically connected to cathode). The tab serves as primary thermal path and must be soldered to a copper pour for thermal management.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VS-MBR1035CT and MBR1035CT, MBRS1035H delivers superior thermal capability (175°C vs. ≤150°C), automotive qualification assurance, and TO-263AB's lower thermal resistance - making it the preferred choice for production-grade automotive power conversion where reliability and thermal headroom are critical.

Availability

MBRS1035H is available at Aetrix Electronics and suitable for automotive lighting systems, DC/DC converters in ADAS ECUs, and reverse battery protection circuits requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant sourcing.

Supply support for MBRS1035H 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 MBRS1035H belongs to TSC's AEC-Q101-qualified Schottky rectifier product line, engineered specifically for high-reliability automotive power conversion where low forward voltage, high surge tolerance, and extended temperature operation are mandatory.

FAQ

What is the maximum junction temperature rating for MBRS1035H?

The MBRS1035H has a maximum junction temperature (T_J) rating of +175°C, verified per absolute maximum ratings in the official Taiwan Semiconductor datasheet. This rating enables operation in high-ambient environments such as engine compartments or sealed LED housings. Derating curves confirm usable current capacity up to 110°C case temperature. The MBRS1035H must be mounted to an adequate thermal pad to maintain this rating in sustained operation.

Is MBRS1035H qualified to AEC-Q101 standards?

Yes, MBRS1035H is explicitly AEC-Q101 qualified, as confirmed in the "FEATURES" section and ordering documentation from Taiwan Semiconductor. This qualification covers temperature cycling, high-temperature operating life, unbiased highly accelerated stress test (uHAST), and mechanical shock - all performed per AEC-Q101 Rev D. The MBRS1035H carries full automotive release documentation and is approved for use in safety-critical power stages.

What is the forward voltage of MBRS1035H at 10A and 125°C?

The forward voltage (V_F) of MBRS1035H is 0.57 V at 10A and junction temperature of 125°C, per the Electrical Specifications table in the Taiwan Semiconductor datasheet. This value is measured under pulsed conditions to minimize self-heating. At 25°C, V_F is lower (typical ~0.52 V), but the 125°C value reflects real-world thermal conditions in automotive power supplies. The MBRS1035H maintains this low V_F across its full operating temperature range.

Does MBRS1035H have a guard ring structure?

Yes, MBRS1035H incorporates a guard ring structure, as stated in the FEATURES list and confirmed in the device's mechanical and reliability description. This design feature suppresses edge breakdown under high dv/dt stress, improving voltage stability during fast switching transitions. It contributes directly to the device's 10,000 V/μs critical rate of rise of off-state voltage rating. The guard ring is integral to the silicon die layout of the MBRS1035H and does not require external circuitry.

What is the moisture sensitivity level (MSL) of MBRS1035H?

The MBRS1035H has a moisture sensitivity level (MSL) of Level 1 per J-STD-020, meaning it has unlimited floor life under standard factory conditions (≤30°C / 60% RH). No baking or dry-pack handling is required prior to surface-mount reflow. This MSL rating is documented in the FEATURES section and verified through preconditioning tests. The MBRS1035H can be processed on standard SMT lines without special humidity controls.