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Diodes Incorporated SBR10U40CT
- Part No.:
- SBR10U40CT
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- TO-220-3
- Datasheet:
-
SBR10U40CT.pdf
- Description:
- DIODE ARRAY SBR 40V 5A TO-220-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,929
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Product details
Overview
SBR10U40CT from Diodes Incorporated is a 10A dual common-cathode Super Barrier Rectifier rated for 40V peak reverse voltage, featuring ultra-low forward voltage (0.38V typ. @10A, 25°C), soft fast switching, and high-temperature stability up to +150°C. It replaces Schottky diodes in high-efficiency DC/DC output rectification for telecom power supplies.
For engineers reviewing the SBR10U40CT datasheet, SBR10U40CT pinout, SBR10U40CT application, or SBR10U40CT equivalent, key selection criteria include forward voltage at full load, thermal resistance (2°C/W junction-to-case), leakage current at elevated temperature, and TO-220AB package compatibility with existing heatsink footprints.
Technical Context
This dual-diode rectifier integrates two independent SBR (Super Barrier Rectifier) cells in a single TO-220AB package with common cathode configuration. Its patented barrier structure enables lower VF than standard Schottkys while maintaining superior high-temperature IR performance - 100µA max leakage at 125°C vs. typical Schottky degradation beyond 85°C.
The device operates with soft recovery characteristics (no hard reverse recovery spike), minimizing EMI in high-frequency switching converters. Thermal design leverages low RθJC (2°C/W) and direct metal tab mounting for efficient heat transfer to external heatsinks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Reverse Voltage | 40 V - Supports 3.3V–12V output rails with 2× safety margin against transient overshoot |
| Forward Voltage (VF) | 0.38 V typ. @10A, 25°C - Reduces conduction loss by ~30% vs. comparable 45V Schottky |
| Avg. Forward Current | 10 A total (5A per leg) - Enables compact single-device solution for dual-phase or redundant outputs |
| Junction-to-Case RθJC | 2 °C/W - Allows >7W continuous dissipation with standard TO-220 heatsink (ΔT = 14°C) |
| Leakage Current (IR) | 100 µA max @40V, 125°C - Stable blocking performance in hot environments without thermal runaway risk |
| Surge Current (IFSM) | 150 A (8.3ms half-sine) - Withstands inrush during hot-plug or cold-start events in server PSUs |
Pinout & Package
TO-220AB package with isolated metal tab (electrically connected to cathode), 3-terminal configuration: Pin 1 = Anode 1, Pin 2 = Cathode (common), Pin 3 = Anode 2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode of Leg 1 | Connects to input side of first rectification path; electrically isolated from tab |
| Pin 2 | Common Cathode | Internally bonded to metal tab; must be thermally and electrically tied to system ground/return |
| Pin 3 | Anode of Leg 2 | Connects to input side of second rectification path; electrically isolated from tab |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low VF | 0.38 V typ. @10A - Directly lowers I²R losses and improves efficiency in 12V→3.3V/5V buck-derived outputs |
| Soft switching | No reverse recovery charge (Qrr ≈ 0 nC) - Eliminates snubber circuits and reduces EMI filter size |
| High-temp IR stability | 100 µA @125°C - Maintains regulation integrity in sealed enclosures or baseplate-mounted telecom modules |
| RoHS & Green compliant | Halogen-free, antimony-free, lead-free - Meets IPC-1752A Class 3 reporting and EU EcoDesign requirements |
Applications
| Telecom DC/DC Output Rectification | Server VRM Synchronous Rectifier Replacement |
|---|---|
Use Scenario: Secondary-side rectification in 48V input, 12V/5V/3.3V isolated DC/DC modules for 5G baseband units. IC Role / Device Role / Timing Role: Dual-leg common-cathode rectifier replacing discrete Schottkys to reduce conduction loss and thermal footprint. Use Value: 0.38V VF cuts power loss by 1.9W per leg vs. 0.55V Schottky, enabling 25°C lower junction temp at full load. | Use Scenario: High-current point-of-load (POL) converter in AI accelerator card power delivery networks. IC Role / Device Role / Timing Role: Low-VF, soft-recovery rectifier used in non-synchronous flyback or forward topology where gate drive complexity must be minimized. Use Value: Eliminates need for active synchronous MOSFET control while delivering Schottky-equivalent efficiency up to 10A. |
| Industrial PLC Power Supply | Automotive Infotainment DC/DC Stage |
Use Scenario: 24V input to 5V/3.3V conversion in programmable logic controller backplanes operating at -40°C to +85°C ambient. IC Role / Device Role / Timing Role: Input-stage rectifier handling repetitive surge currents during motor contactor switching transients. Use Value: 150A IFSM rating withstands 10× nominal current surges without degradation, ensuring long-term reliability. | Use Scenario: USB-C PD auxiliary power rail (5V/9V/15V) generation in head unit mainboard with limited board space. IC Role / Device Role / Timing Role: Compact dual-output rectifier supporting dual-voltage sequencing from single transformer secondary. Use Value: Common-cathode TO-220AB layout simplifies PCB routing and reduces copper area vs. two discrete packages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super barrier rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-10BQ040 | Higher VF (0.45V typ. @10A), same 40V VRRM, TO-220AC package (non-isolated tab) | Requires insulating washer for heatsink mounting; less suitable for grounded-cathode designs | Select when cost sensitivity outweighs 70mV VF penalty and isolation is not required |
| ON Semiconductor MBR1045CT | Standard Schottky, higher IR (1mA @125°C), 45V rating, same TO-220AB package | Exhibits thermal runaway risk above 100°C due to exponential IR increase | Choose only for lower-cost legacy designs where ambient stays below 85°C |
Compared with VS-10BQ040 and MBR1045CT, SBR10U40CT delivers the lowest conduction loss across its full temperature range and eliminates thermal runaway concerns - critical for unventilated industrial enclosures and automotive under-hood applications.
Availability
SBR10U40CT is available at Aetrix Electronics and suitable for telecom power supplies, server VRMs, industrial PLCs, and automotive infotainment systems requiring stable component supply and long-lifecycle support.
Supply support for SBR10U40CT 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 and manufacturing operations across Asia and the Americas.
The SBR® product line was developed to deliver Schottky-like forward performance with improved high-temperature reliability for high-efficiency power conversion in telecom, computing, and industrial equipment.
FAQ
Is SBR10U40CT pin-compatible with standard TO-220AB dual diodes like MBR1045CT?
Yes - SBR10U40CT uses identical TO-220AB mechanical outline and 3-pin common-cathode pinout (Anode1–Cathode–Anode2). The cathode tab is electrically connected to Pin 2 and the metal mounting surface, matching MBR1045CT's thermal and electrical interface.
What is the maximum allowable case temperature for continuous operation?
The device supports continuous operation up to +150°C junction temperature. With RθJC = 2°C/W and typical heatsink thermal resistance of 5°C/W, sustained 10A operation requires case temperature ≤ 135°C to maintain TJ ≤ 150°C under worst-case ambient conditions.
Does SBR10U40CT require derating when used with capacitive loads?
Yes - per datasheet, average forward current must be derated by 20% for capacitive loads due to higher peak charging currents. At 10A rated IO, limit continuous current to 8A when feeding bulk capacitance directly after rectification.
Can SBR10U40CT be mounted directly to a grounded metal chassis without insulation?
No - the metal tab is electrically connected to the common cathode (Pin 2). Mounting to a grounded chassis is acceptable only if the cathode node is referenced to system ground; otherwise, an insulating pad and shoulder washer are required to prevent short circuits.
SBR10U40CT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- SBR®
- Package/Case:
- TO-220-3
- 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:
- TO-220-3
SBR10U40CT FAQ
1.How can I place an order for SBR10U40CT through Aetrix?
Please submit a Request for Quotation (RFQ) for SBR10U40CT 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 SBR10U40CT reliable?
The price and inventory of SBR10U40CT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SBR10U40CT is usually 5 days.
3.What payment methods are accepted for SBR10U40CT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SBR10U40CT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SBR10U40CT?
SBR10U40CT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SBR10U40CT 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 SBR10U40CT?
For technical support, including SBR10U40CT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SBR10U40CT requirements.
6.How does Aetrix verify that SBR10U40CT is sourced from the original manufacturer or authorized distributors?
All SBR10U40CT 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 SBR10U40CT meets industry standards.
7.What is the process for return or replacement of SBR10U40CT?
All SBR10U40CT units undergo pre-shipment inspection (PSI). If there is an issue with SBR10U40CT, 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 SBR10U40CT part is unused and in its original packaging.
Return procedure for SBR10U40CT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SBR10U40CT Tags
-
BAV99-7-F
Diodes Incorporated
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BAT54C-7-F
Diodes Incorporated
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BAV99,215
Nexperia USA Inc.
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BAT54SLT1G
onsemi
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BAV70LT1G
onsemi
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onsemi
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BAT54S-7-F
Diodes Incorporated
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BAV99LT1G
onsemi
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BAT54S,215
Nexperia USA Inc.
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BAS40-04LT1G
onsemi
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MMBD1503-TP
Micro Commercial Co
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BAV99WT1G
onsemi
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