Diodes Incorporated MBRB20150CT-13

Overview

MBRB20150CT-13 from Diodes Incorporated is a dual common-cathode Schottky barrier rectifier in TO263AB (D2PAK) package, rated for 150 V reverse voltage and 10 A average forward current per leg (20 A total), with max 0.90 V forward voltage at 10 A and 25°C - used for polarity protection, recirculating diodes, and switching in DC/DC converters and industrial power supplies.

For engineers reviewing the MBRB20150CT-13 datasheet, MBRB20150CT-13 pinout, MBRB20150CT-13 application, or MBRB20150CT-13 equivalent, key selection criteria include per-leg thermal resistance (5°C/W junction-to-case), AEC-Q101 qualification, RoHS-compliant matte tin terminals, and 170 A non-repetitive surge rating for high-reliability power conversion designs.

Technical Context

This dual Schottky rectifier integrates two independent 150 V / 10 A legs sharing a common cathode terminal, enabling synchronous rectification or dual-rail output rectification in compact layouts. Its guard ring die construction enhances transient immunity, while low VF minimizes conduction loss in high-frequency switching topologies.

Thermal performance is optimized for surface-mount PCB mounting on 2-inch aluminum boards, delivering 5°C/W junction-to-case resistance and supporting continuous operation up to +175°C junction temperature. The device is qualified to AEC-Q101, confirming suitability for automotive-grade power systems requiring robust surge and thermal cycling endurance.

Key Specifications

Pinout & Package

Package: TO263AB (D2PAK), surface-mount, 3-terminal configuration with exposed thermal pad. Molded green compound (UL 94V-0), matte tin–annealed copper leadframe, moisture sensitivity level 1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STPS20H15CGY-TR and SS20150CT, MBRB20150CT-13 uniquely combines AEC-Q101 qualification, D2PAK thermal performance (5°C/W RθJC), and RoHS/halogen-free compliance - making it optimal for space-constrained, thermally demanding automotive and industrial SMT power stages.

Availability

MBRB20150CT-13 is available at Aetrix Electronics and suitable for DC/DC converter output rectification, automotive body control modules, and industrial motor drive recirculation requiring stable component supply and long-term lifecycle support.

Supply support for MBRB20150CT-13 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

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in California, with design, manufacturing, and sales operations across Asia, Europe, and North America.

The MBRB20150CT-13 belongs to Diodes' high-reliability Schottky rectifier product line, engineered specifically for automotive and industrial power conversion where low VF, surge robustness, and AEC-Q101 compliance are mandatory.

FAQ

What is the maximum junction temperature and how does it affect layout?

The MBRB20150CT-13 supports up to +175°C junction temperature. To achieve this, the exposed thermal pad must be soldered to ≥250 mm² of 2-oz copper with ≥4 thermal vias (0.3 mm diameter) to internal ground planes. Thermal resistance drops from 20°C/W (junction-to-ambient) to 5°C/W (junction-to-case) only with proper PCB heatsinking.

Is MBRB20150CT-13 pin-compatible with MBRB20150CT?

Yes - MBRB20150CT-13 and MBRB20150CT share identical TO263AB (D2PAK) package, pinout, and electrical specifications. The "-13" suffix denotes 800-piece tape-and-reel packaging versus 50-piece tube for the base part; no functional or mechanical differences exist.

Does this device require a heatsink in typical 10 A operation?

No external heatsink is required if PCB layout follows Diodes' recommended 2-inch aluminum board test condition: ≥400 mm² copper pour under the thermal pad, 6+ thermal vias, and ambient temperature ≤75°C. At 10 A per leg and 25°C ambient, junction temperature remains below 110°C under these conditions.

How does the guard ring construction improve reliability?

The integrated guard ring reduces edge-field concentration at the PN junction periphery, suppressing premature avalanche breakdown during voltage transients. This extends device lifetime under repeated ISO 7637-2 load-dump pulses and improves ESD robustness to >8 kV HBM - critical for automotive power rails exposed to battery disconnection events.