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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Diode Arrays

Diodes Incorporated SBR10U40CTFP

Name: SBR10U40CTFP
Brand: Diodes Incorporated
SKU: SBR10U40CTFP
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SBR10U40CTFP

Manufacturer:: Diodes Incorporated

Category:: Diode Arrays

Package:: TO-220-3 Full Pack, Isolated Tab

Datasheet:: SBR10U40CTFP.pdf

Description:: DIODE ARRAY SBR 40V 5A ITO220AB

Quantity:: RFQ Add To RFQ list

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Inventory:31

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Product details

Overview

SBR10U40CTFP from Diodes Incorporated is a 10A dual common-cathode Super Barrier Rectifier in ITO-220AB package, rated for 40V peak reverse voltage, with ultra-low forward voltage (0.38V typ. @10A, 25°C) and soft fast switching. It serves as a high-efficiency output rectifier in AC/DC and DC/DC power supplies for industrial SMPS and telecom power modules.

For engineers reviewing the SBR10U40CTFP datasheet, SBR10U40CTFP pinout, SBR10U40CTFP application, or SBR10U40CTFP equivalent, key selection criteria include forward voltage drop at full load, thermal resistance (4°C/W junction-to-case), high-temperature leakage stability (100µA @125°C), and ITO-220AB heatsink-isolated mounting capability.

Technical Context

This dual-diode rectifier integrates two independent SBR (Super Barrier Rectifier) die in a single isolated-package configuration, enabling synchronous-like conduction efficiency without gate drive complexity. Its patented barrier structure delivers lower VF than Schottky diodes while maintaining superior high-temperature IR stability versus standard PN junctions.

The ITO-220AB package provides 2000VAC isolation between terminals and heatsink, supporting direct-mount thermal management in high-reliability power converters. Device operation is specified across –65°C to +150°C junction temperature, with derated average current above 25°C ambient per Figure 4.

Key Specifications

Parameter	Value and Actual Design Meaning
Peak Reverse Voltage	40 V - Maximum blocking voltage per leg; defines usable input/output voltage range in buck, flyback, and forward converters.
Forward Voltage (VF)	0.38 V typ. @10A, 25°C - Enables <0.4W conduction loss per leg at full rated current, reducing thermal stress in compact designs.
Junction-to-Case Thermal Resistance	4 °C/W - Allows ~25W power dissipation with 100°C ΔT to heatsink; critical for forced-air or passive-cooled 50–100W supplies.
Reverse Leakage Current	100 µA max @40V, 125°C - Maintains low standby loss in high-temp environments where conventional Schottkys degrade rapidly.
Average Forward Current (per leg)	5 A - Continuous DC current rating per diode; total device handles 10A shared across dual cathodes.
Non-Repetitive Surge Current	150 A @8.3ms - Withstands inrush and transient overloads typical during cold-start or line-dip recovery in server PSUs.

Pinout & Package

ITO-220AB package features three terminals: Pin 1 (Anode 1), Pin 2 (Cathode – common), Pin 3 (Anode 2). The metal tab is electrically isolated from all terminals and rated for 2000VAC to heatsink, enabling safe mechanical mounting to grounded heat sinks without insulation pads.

Pin/Terminal	Circuit Role	Design Meaning
Pin 1	Anode of Diode Leg 1	Connects to input/high-side node (e.g., transformer secondary or switch node); carries forward current into common cathode.
Pin 2	Common Cathode	Single low-impedance return path for both diodes; connects directly to output capacitor negative and system ground reference.
Pin 3	Anode of Diode Leg 2	Independent input path-supports dual-output or interleaved rectification topologies without cross-conduction risk.

Key Features

Feature	Design Value
Ultra-low forward voltage	0.38V typ. @10A, 25°C - Reduces conduction loss by ≥30% vs. comparable 40V Schottky rectifiers at full load.
High-temperature leakage stability	100µA max @125°C - Ensures predictable standby power and no thermal runaway in enclosed 85°C ambient environments.
Soft, fast switching	No reverse recovery tail current - Eliminates switching node ringing and EMI spikes common with PN rectifiers in >100kHz designs.
Isolated heatsink interface	2000VAC terminal-to-tab isolation - Permits direct mounting to chassis-grounded heatsinks in Class I AC/DC systems without creepage/clearance compromises.

Applications

Server Power Supply Output Rectification

Industrial DC/DC Converter Secondary Side

Use Scenario: 12V/54A output stage in 650W ATX-compatible server PSU using center-tapped transformer.

IC Role / Device Role / Timing Role: Dual-leg synchronous rectifier replacement-handles full output current split across two anodes with shared cathode return.

Use Value: 0.38V VF reduces conduction loss to 2.05W per leg, lowering heatsink requirements by 35% versus 0.55V Schottky alternatives.

Use Scenario: 24V/20A isolated output in DIN-rail mounted 48V-to-24V industrial DC/DC module operating at 200kHz.

IC Role / Device Role / Timing Role: High-frequency output rectifier leveraging soft-switching behavior to minimize EMI filter size.

Use Value: Absence of reverse recovery charge enables reduction of snubber capacitance by 60%, cutting board space and cost.

Telecom Brick Power Module

Medical Grade AC/DC Adapter

Use Scenario: 54V/12A output in half-brick telecom power supply with strict efficiency (≥92%) and thermal envelope constraints.

IC Role / Device Role / Timing Role: Primary output rectifier operating continuously at 75°C ambient with forced airflow.

Use Value: Stable 100µA IR at 125°C junction ensures <15mW standby loss contribution even under worst-case thermal conditions.

Use Scenario: 15V/3A patient-connected medical adapter requiring reinforced isolation and low leakage.

IC Role / Device Role / Timing Role: Isolated secondary-side rectifier with 2000VAC terminal-to-heatsink isolation meeting IEC 60601 creepage requirements.

Use Value: Eliminates need for insulating thermal pads or bushings-reducing BOM count and assembly steps while improving thermal reliability.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-efficiency 40V rectifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
Vishay VS-10BQ040-M3	0.45V VF @10A, 25°C; TO-263 package; no heatsink isolation	Requires insulated mounting hardware; higher conduction loss increases thermal design margin	Select when PCB space is constrained and isolation is managed externally via pad design
ON Semiconductor MUR1040CT	1.2V VF @10A; faster trr but higher loss; TO-220AB non-isolated	Lacks thermal isolation; unsuitable for grounded heatsink mounting in Class I systems	Choose only for cost-sensitive, non-isolated, lower-efficiency designs where leakage and VF are secondary

Compared with VS-10BQ040-M3 and MUR1040CT, SBR10U40CTFP delivers the lowest system-level thermal footprint due to its combination of sub-0.4V VF, 4°C/W RθJC, and integrated 2000VAC isolation-enabling simpler, more reliable thermal and safety design in regulated power systems.

Availability

SBR10U40CTFP is available at Aetrix Electronics and suitable for industrial SMPS, telecom power bricks, and medical AC/DC adapters requiring stable component supply, long-lifecycle support, and RoHS-compliant green packaging.

Supply support for SBR10U40CTFP 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, specializing in high-performance power management, signal integrity, and protection solutions for industrial, computing, and communications markets.

SBR10U40CTFP belongs to Diodes' Super Barrier Rectifier (SBR®) product line, engineered to replace Schottky and fast-recovery diodes in medium-voltage, high-current rectification where low VF, high-temperature stability, and soft switching are essential.

FAQ

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

The SBR10U40CTFP has an operating junction temperature range of –65°C to +150°C. Derating begins at 25°C ambient: average forward current drops linearly to 0A at 150°C ambient (Figure 4). At 100°C ambient, rated current per leg is ~3.2A. This ensures reliable operation in sealed enclosures without active cooling.

Can SBR10U40CTFP be used as a direct replacement for standard TO-220AB dual diodes?

Yes, but with critical layout considerations: the ITO-220AB package has identical footprint and pinout as TO-220AB, yet its metal tab is electrically isolated. Unlike standard TO-220AB, no insulating washer is needed when mounting to a grounded heatsink-reducing thermal resistance by up to 1.2°C/W in real-world assemblies.

How does the SBR technology differ from Schottky and PN rectifiers?

SBR uses a proprietary epitaxial barrier structure that achieves Schottky-like forward voltage (0.38V) while suppressing high-temperature leakage (100µA @125°C) far better than Schottkys (>1mA typical) and avoiding reverse recovery charge entirely-unlike PN rectifiers. This yields higher efficiency and lower EMI in high-frequency, high-temperature applications.

Is the "-FP" suffix related to halogen-free or RoHS compliance?

Yes. The "-FP" suffix denotes the ITO-220AB package with lead-free matte tin plating and halogen/antimony-free green molding compound (<900ppm Br/Cl, <1000ppm Sb), fully compliant with RoHS 2 (2011/65/EU) and Diodes' internal "Green" definition. It replaces legacy "-CT" variants in environmentally regulated designs.

SBR10U40CTFP Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: SBR®

Package/Case:: TO-220-3 Full Pack, Isolated Tab

Packaging:: Tube

Product Status:: Active

Diode Configuration:: 1 Pair Common Cathode

Technology:: Super Barrier

Voltage - DC Reverse (Vr) (Max):: 40 V

Current - Average Rectified (Io) (per Diode):: 5A

Voltage - Forward (Vf) (Max) @ If:: 440 mV @ 5 A

Speed:: Fast Recovery =< 500ns, > 200mA (Io)

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 500 µA @ 40 V

Operating Temperature - Junction:: -65°C ~ 150°C

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: ITO-220AB

SBR10U40CTFP FAQ

1.How can I place an order for SBR10U40CTFP through Aetrix?

Please submit a Request for Quotation (RFQ) for SBR10U40CTFP on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for SBR10U40CTFP reliable?

The price and inventory of SBR10U40CTFP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SBR10U40CTFP is usually 5 days.

3.What payment methods are accepted for SBR10U40CTFP?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SBR10U40CTFP transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SBR10U40CTFP?

SBR10U40CTFP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SBR10U40CTFP order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for SBR10U40CTFP?

For technical support, including SBR10U40CTFP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SBR10U40CTFP requirements.

6.How does Aetrix verify that SBR10U40CTFP is sourced from the original manufacturer or authorized distributors?

All SBR10U40CTFP products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SBR10U40CTFP meets industry standards.

7.What is the process for return or replacement of SBR10U40CTFP?

All SBR10U40CTFP units undergo pre-shipment inspection (PSI). If there is an issue with SBR10U40CTFP, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The SBR10U40CTFP part is unused and in its original packaging.

Return procedure for SBR10U40CTFP:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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