Diodes Incorporated SBR30300CTFP-G

Overview

SBR30300CTFP-G from Diodes Incorporated is a 30A dual common-cathode Super Barrier Rectifier rated for 300V peak reverse voltage, with VF ≤ 0.92V at 15A/125°C and trr ≤ 35ns under specified switching conditions. It delivers low conduction loss and soft fast recovery in high-efficiency AC/DC front-ends and DC-DC secondary-side rectification for telecom power supplies.

For engineers reviewing the SBR30300CTFP-G datasheet, SBR30300CTFP-G pinout, SBR30300CTFP-G application, or SBR30300CTFP-G equivalent, key selection criteria include thermal resistance (RθJC = 4°C/W), isolation voltage (2000 VAC), and high-temperature leakage stability (IR ≤ 10 mA at 125°C, VR = 300V).

Technical Context

This device integrates two independent super barrier diode elements in a single ITO-220AB package with electrically isolated tab. Its patented structure replaces Schottky architecture to achieve higher blocking voltage without sacrificing forward performance or temperature stability.

The dual common-cathode configuration supports synchronous rectification topologies and center-tapped transformer designs. Soft recovery minimizes EMI generation during turn-off, while the 200A non-repetitive surge rating enables robust handling of transient overloads in industrial power systems.

Key Specifications

Pinout & Package

Package: ITO-220AB - Insulated TO-220 variant with electrically isolated metal tab, UL 94V-0 molded plastic body, matte tin-plated copper leadframe, and 1.65 g mass. Tab is connected to cathode; pins 1 and 2 are anodes.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SBRT30300CTFP-G, this part trades 0.5°C/W higher thermal resistance for proven field reliability and broader distributor availability; versus MBR3030CTG, it delivers superior high-temperature stability and lower EMI-critical for dense, fanless power designs.

Availability

SBR30300CTFP-G is available at Aetrix Electronics and suitable for telecom power supplies, server PSUs, industrial motor drive auxiliaries, and LED driver bulk rectification requiring stable component supply across multi-year production cycles.

Supply support for SBR30300CTFP-G 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 SBR® (Super Barrier Rectifier) product line was developed to deliver Schottky-level forward performance with higher voltage capability and improved temperature stability-targeting high-efficiency, high-reliability power conversion in computing, communications, and industrial systems.

FAQ

What is the maximum junction temperature and how does it affect long-term reliability?

The SBR30300CTFP-G has a rated TJ(max) of +175°C. Operating consistently above 150°C accelerates parametric shift in VF and IR; however, its patented super barrier structure maintains IR ≤ 10 mA at 125°C and ≤ 50 mA at 175°C, supporting >10-year MTBF in well-ventilated industrial applications when derated per Figure 1.

Can this device replace a standard TO-220AB Schottky in existing designs?

Yes, but with critical thermal and isolation considerations: the ITO-220AB package provides electrical isolation between tab and leads, unlike standard TO-220AB. Mounting requires an insulating washer, and thermal resistance is 4°C/W (vs. ~2°C/W for TO-220AB), so heatsink sizing must be re-evaluated using the actual RθJA of the target system.

How does the soft recovery characteristic benefit EMI performance?

Soft recovery reduces the rate of change of reverse current (di/dt) during turn-off, lowering high-frequency spectral content in switching waveforms. Measured data shows >10 dB reduction in 30–100 MHz conducted EMI versus fast-recovery diodes with similar trr, easing compliance with CISPR 22/32 Class B limits in compact power supplies.

Is the green molding compound compliant with IPC-1752 and REACH?

Yes-the "-G" suffix denotes halogen-free, RoHS-compliant green compound meeting IPC-1752a Category A reporting requirements and REACH SVHC thresholds (<0.1% w/w). Full material declarations and CoC are available upon request through Aetrix Electronics' technical support portal.