Diodes Incorporated MBR15100CTF-G1

Overview

MBR15100CTF-G1 from Diodes Incorporated is a high-voltage dual Schottky rectifier in TO-220F-3 package, rated for 100 V reverse voltage, 7.5 A per diode leg (15 A total), and 0.85 V max forward voltage at +25°C. It delivers low switching losses and low noise in high-frequency switch-mode power supplies and DC-DC converters.

For engineers reviewing the MBR15100CTF-G1 datasheet, MBR15100CTF-G1 pinout, MBR15100CTF-G1 application, or MBR15100CTF-G1 equivalent, key selection criteria include junction temperature rating (+150°C), surge current capability (150 A), thermal resistance (4.5 °C/W junction-to-case), guard-ring protection, and RoHS-compliant "Green" packaging.

Technical Context

This dual common-cathode Schottky rectifier integrates two independent 7.5 A diode legs sharing a single cathode terminal (Pin 2), enabling synchronous or interleaved output rectification. Its low VF and fast recovery eliminate minority-carrier storage delay, making it suitable for >100 kHz operation without snubbers.

The device uses platinum-silicide or similar Schottky barrier technology on epitaxial silicon, with guard-ring termination to prevent edge breakdown under high dv/dt (10,000 V/µs). Thermal design relies on direct case-to-heatsink conduction via the metal tab (Pin 2), with RθJC = 4.5 °C/W for TO-220F-3.

Key Specifications

Pinout & Package

Package: TO-220F-3 (isolated flange, full-molded plastic body, lead-free matte tin finish, UL 94V-0 rated).

Key Features

Applications

Equivalent & Alternatives

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

Compared with VS-MBR16100CT and MBR16100CT, MBR15100CTF-G1 trades minor current headroom (15 A vs. 16 A) for guaranteed halogen-free compliance, flange isolation, and tighter IR spec-making it preferred for medical, telecom, and export-focused designs with stringent environmental and safety requirements.

Availability

MBR15100CTF-G1 is available at Aetrix Electronics and suitable for server power supplies, industrial DC-DC converters, and telecom power shelves requiring stable component supply, long-term lifecycle support, and certified "Green" packaging.

Supply support for MBR15100CTF-G1 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 Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and the Americas.

The MBR15100CTF-G1 belongs to Diodes' high-voltage Schottky rectifier product line, engineered specifically for high-frequency, high-efficiency power conversion in space- and thermal-constrained applications where low VF, robust surge handling, and environmental compliance are mandatory.

FAQ

What is the maximum continuous case temperature for reliable operation?

The MBR15100CTF-G1 supports continuous operation up to TC = +122°C while delivering its rated 7.5 A per diode leg. This limit is derived from thermal derating curves in the datasheet and assumes proper heatsinking per the recommended pad layout. Exceeding this temperature requires proportional current reduction to maintain TJ ≤ +150°C.

Is the metal tab (Pin 2) electrically connected to any internal node?

Yes-the metal tab is bonded directly to the common cathode (K) terminal (Pin 2) and is therefore electrically active. In TO-220F-3, the flange is fully isolated from the PCB mounting surface by the molded plastic body, but the tab itself must be treated as a live circuit node unless explicitly grounded or insulated per system safety requirements.

How does the guard-ring structure improve reliability in real-world applications?

The guard-ring prevents premature edge breakdown under high electric field stress caused by PCB contamination, humidity, or mechanical strain. In field-deployed power supplies, this structure extends time-to-failure under humid, dusty, or vibration-prone conditions-particularly critical in telecom base stations and industrial motor drives where maintenance access is limited.

Can MBR15100CTF-G1 replace MBR15100CT-E1 in an existing design?

Yes-both share identical electrical specs, pinout, and thermal characteristics. The only difference is packaging: G1 denotes halogen/antimony-free "Green" compound, while E1 indicates RoHS-compliant (lead-free) but not necessarily halogen-free. No layout or thermal redesign is needed, though final compliance validation should confirm alignment with target market environmental regulations.