Diodes Incorporated SBR20A200CT

Overview

SBR20A200CT from Diodes Incorporated is a 20A dual common-cathode super barrier rectifier rated for 200V peak repetitive reverse voltage, with typical forward voltage of 0.72V at 20A/25°C and soft-switching reverse recovery time of 24ns. It delivers high-temperature stability up to +175°C junction temperature and is optimized for high-efficiency AC/DC front-end rectification in industrial power supplies.

For engineers reviewing the SBR20A200CT datasheet, SBR20A200CT pinout, SBR20A200CT application, or SBR20A200CT equivalent, key selection criteria include forward voltage drop at full load, thermal resistance (2°C/W junction-to-case), surge current rating (180A IFSM), and RoHS-compliant green packaging with halogen-free molding compound.

Technical Context

This dual-leg super barrier rectifier uses patented Schottky-like low-VF architecture with enhanced blocking capability beyond standard Schottkys, enabling 200V operation while maintaining soft, fast switching (trr ≤30ns). Its TO-220AB package supports direct heatsink mounting for high-power dissipation.

The device operates across –65°C to +175°C, with leakage current limited to 0.1mA at 200V/25°C and 10mA at 200V/125°C. Its 10,000 V/μs dv/dt rating ensures robustness against voltage transients in switching power converters.

Key Specifications

Pinout & Package

TO-220AB package: insulated tab, 3-terminal dual-anode/common-cathode configuration. Mounting hole centered on tab for mechanical stability and thermal transfer to heatsink.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-current super barrier rectifier applications.

Compared with VS-20CPH02-M3 and MUR2020CT, SBR20A200CT provides the lowest system-level thermal footprint and highest efficiency in high-frequency, high-temperature rectification-justifying its use where 0.72V VF and 24ns trr directly impact reliability and size constraints.

Availability

SBR20A200CT is available at Aetrix Electronics and suitable for industrial motor drives, telecom rectifier modules, LED streetlight drivers, and server power supplies requiring stable component supply and long-term lifecycle support.

Supply support for SBR20A200CT 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, serving industrial, computing, consumer, and communications markets with over 40 years of power device expertise.

The SBR® Super Barrier Rectifier product line was developed to replace conventional Schottky and ultrafast diodes in high-voltage, high-current rectification-delivering lower VF than PN devices and higher blocking voltage than standard Schottkys.

FAQ

What is the maximum allowable case temperature for continuous operation?

The TO-220AB package supports continuous operation up to +150°C case temperature, as derived from the derating curve in Figure 4: at TC = 150°C, IF(AV) per leg drops to 5.5A (11A total), ensuring safe junction temperature below +175°C with RθJC = 2°C/W and 20°C heatsink-to-ambient rise.

Is SBR20A200CT suitable for use in a full-wave bridge configuration?

Yes-its dual common-cathode structure allows direct implementation as half of a full-wave bridge (two devices required). Each anode handles one AC phase; the shared cathode serves as positive DC output. No external isolation is needed between devices since both share identical package insulation ratings.

Does the "CT" suffix indicate center-tap or common-terminal construction?

The "CT" suffix denotes common-cathode (not center-tap) configuration: both anodes are electrically independent inputs, while the cathode is internally bonded to lead 2 and the metal tab. This differs from center-tap transformers and enables synchronous rectification topologies with single-point DC output reference.

How does the green molding compound affect thermal performance?

The halogen-free green compound has identical thermal conductivity (~0.7 W/m·K) and CTE matching to standard epoxy, with no measurable impact on RθJC or power cycling reliability. Diodes Incorporated validates thermal performance equivalency per JEDEC JESD22-A104 humidity-free solderability and JESD22-A108 high-temperature storage tests.