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Diodes Incorporated SBRT40M80CTB-13
- Part No.:
- SBRT40M80CTB-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
SBRT40M80CTB-13.pdf
- Description:
- DIODE ARRAY SBR 80V 20A TO-263
- Quantity:
- Payment:
- Shipping:
Inventory:790
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Product details
Overview
SBRT40M80CTB-13 from Diodes Incorporated is a 40A dual common-cathode Trench Super Barrier Rectifier (SBR®) in TO263AB (D2PAK) package, rated for 80V peak repetitive reverse voltage, 0.72V max forward voltage at 20A/125°C, and 65µA max reverse leakage at 80V/25°C. It serves as a high-efficiency rectifier or freewheel diode in high-density power supplies.
For engineers reviewing the SBRT40M80CTB-13 datasheet, SBRT40M80CTB-13 pinout, SBRT40M80CTB-13 application, or SBRT40M80CTB-13 equivalent, key selection criteria include low VF stability across temperature, thermal resistance (RθJC = 12°C/W), dual-leg current sharing capability, and RoHS-compliant green packaging for industrial SMPS design.
Technical Context
This device implements patented Trench SBR® technology to achieve lower forward voltage than standard Schottky diodes while maintaining superior high-temperature reverse leakage performance. Its dual common-cathode configuration enables independent leg operation with shared thermal path through the D2PAK copper tab.
Designed for continuous conduction mode (CCM) and critical conduction mode (CRM) topologies, it supports 20A per leg (40A total) with 230A non-repetitive surge rating and operates reliably from –55°C to +150°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 80 V - Maximum repetitive reverse blocking voltage per leg without breakdown |
| IO (per leg) | 20 A - Continuous average rectified current per anode leg at TA = 25°C with heatsink |
| VF (max) | 0.72 V @ 20A, 125°C - Ensures <1.44W conduction loss per leg under worst-case thermal condition |
| IR (max) | 65 µA @ 80V, 25°C - Low leakage preserves efficiency and prevents thermal runaway in high-temp operation |
| RθJC | 12 °C/W - Enables direct thermal coupling to heatsink via exposed cathode tab for high-power dissipation |
| Package | TO263AB (D2PAK) - Industry-standard surface-mount package with integrated copper thermal pad |
| RoHS | Lead-free, halogen- and antimony-free - Complies with EU Directive 2011/65/EU and JEDEC J-STD-020 Level 1 |
Pinout & Package
TO263AB (D2PAK) package features three terminals: two anodes (A1, A2) and one common cathode (K) on the large exposed metal tab. The plastic body provides UL 94V-0 flammability rating and moisture sensitivity level 1 handling.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | Anode 1 | Input terminal for first rectification leg; electrically isolated from A2 |
| A2 | Anode 2 | Input terminal for second rectification leg; independent current path from A1 |
| K (Tab) | Common Cathode | Shared output node and primary thermal conduction path to PCB heatsink |
Key Features
| Feature | Design Value |
|---|---|
| Trench SBR® Technology | Enables 0.51–0.72V VF range across operating conditions-lower than conventional Schottky with comparable IR |
| Thermal Resistance (RθJC) | 12°C/W allows 2.4W dissipation per leg before reaching 150°C junction limit with 25°C case temp |
| High-Temp Leakage Control | 40mA IR max at 125°C ensures stable blocking behavior in hot environments like enclosed DC-DC converters |
| Dual Common-Cathode Layout | Supports interleaved or parallel rectification paths while minimizing layout area and thermal crosstalk |
Applications
| Server PSU Rectification | Industrial DC-DC Converter |
|---|---|
Use Scenario: High-efficiency 48V-to-12V intermediate bus conversion in 1U server power supplies. IC Role / Device Role / Timing Role: Dual-leg synchronous rectifier replacing MOSFETs in secondary-side synchronous rectification stage. Use Value: 0.63V typical VF at 20A/25°C reduces conduction loss by ~15% vs. standard Schottky alternatives, lowering thermal load on heatsink. | Use Scenario: Input rectification in isolated 24V-input industrial DC-DC modules operating in ambient up to 85°C. IC Role / Device Role / Timing Role: Freewheel diode in flyback or forward converter snubber networks. Use Value: 40mA IR at 125°C prevents thermal runaway during sustained overload, improving system reliability over legacy diodes. |
| AC-DC Adapter Output Stage | Telecom Power Shelf |
Use Scenario: Secondary-side output rectification in compact 65W USB-PD wall adapters. IC Role / Device Role / Timing Role: Blocking diode preventing backfeed between parallel output rails. Use Value: TO263AB package enables >2.5W power handling in space-constrained designs where SO-8 or TO252 fail thermally. | Use Scenario: Redundant 48V input rectification in telecom shelf power distribution units. IC Role / Device Role / Timing Role: OR-ing diode ensuring fault isolation between parallel power feeds. Use Value: Dual-leg structure allows current sharing up to 40A total with matched VF characteristics, reducing single-point failure risk. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-current, high-temperature rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SBRT40M80CT-13 | Same die, TO220AB package - higher RθJA (35°C/W), no thermal pad | Suitable only for lower-power or forced-air-cooled designs | Select when board-level heatsinking is impractical but leaded mounting is preferred |
| MBR4080CTG | Standard Schottky, VF ≈ 0.85V @ 20A/25°C, IR ≈ 100µA @ 80V/25°C | Higher conduction loss and less stable leakage above 85°C | Choose only if cost sensitivity outweighs thermal performance requirements |
Compared with SBRT40M80CT-13 and MBR4080CTG, SBRT40M80CTB-13 delivers superior thermal management via its D2PAK thermal pad and maintains tighter leakage control at elevated temperatures-critical for sealed, high-power-density systems.
Availability
SBRT40M80CTB-13 is available at Aetrix Electronics and suitable for server PSUs, industrial DC-DC converters, and telecom power shelves requiring stable component supply, long-term lifecycle support, and consistent thermal performance across temperature extremes.
Supply support for SBRT40M80CTB-13 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 North America.
The SBR® product line targets high-efficiency power conversion applications where low VF and stable high-temperature leakage are essential-specifically engineered for next-generation SMPS, DC-DC, and AC-DC systems demanding reliability under thermal stress.
FAQ
What is the maximum junction temperature for SBRT40M80CTB-13?
The absolute maximum junction temperature is +150°C, validated per JEDEC standards. Operation at this limit requires strict thermal design: RθJC = 12°C/W implies ≤125°C case temperature to maintain safe margin. Derating curves in Figure 3 confirm 20A per leg is sustainable only below 70°C ambient with proper heatsinking.
Is SBRT40M80CTB-13 pin-compatible with standard TO263AB dual-diode rectifiers?
Yes-its TO263AB footprint matches industry-standard dual common-cathode rectifiers (e.g., MBR40xxCT series). Pin 1 (A1), Pin 2 (A2), and the exposed tab (K) follow JEDEC MO-211AA mechanical outline. Pad layout must accommodate 10.41mm × 7.01mm body and ≥2.5mm solder mask clearance for thermal relief.
How does the Trench SBR® technology differ from conventional Schottky diodes?
Trench SBR® uses a proprietary trench-etched barrier structure that lowers series resistance without increasing leakage-achieving VF as low as 0.51V at 10A/25°C while maintaining 65µA IR at 80V/25°C. Conventional Schottkys trade VF for IR; this architecture decouples the two parameters via optimized doping and geometry.
Can SBRT40M80CTB-13 be used in automotive under-hood applications?
No-it is not AEC-Q101 qualified. While its –55°C to +150°C operating range meets automotive ambient requirements, Diodes Incorporated does not certify this part for automotive use due to lack of stress testing per AEC-Q101. For under-hood designs, consult Diodes' AEC-Q101-qualified SBR variants such as SBRT30U100CTBQ.
SBRT40M80CTB-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- SBR
- Package/Case:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Super Barrier
- Voltage - DC Reverse (Vr) (Max):
- 80 V
- Current - Average Rectified (Io) (per Diode):
- 20A
- Voltage - Forward (Vf) (Max) @ If:
- 720 mV @ 20 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 65 µA @ 80 V
- Operating Temperature - Junction:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-263
SBRT40M80CTB-13 FAQ
1.How can I place an order for SBRT40M80CTB-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SBRT40M80CTB-13 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 SBRT40M80CTB-13 reliable?
The price and inventory of SBRT40M80CTB-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SBRT40M80CTB-13 is usually 5 days.
3.What payment methods are accepted for SBRT40M80CTB-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SBRT40M80CTB-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SBRT40M80CTB-13?
SBRT40M80CTB-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SBRT40M80CTB-13 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 SBRT40M80CTB-13?
For technical support, including SBRT40M80CTB-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SBRT40M80CTB-13 requirements.
6.How does Aetrix verify that SBRT40M80CTB-13 is sourced from the original manufacturer or authorized distributors?
All SBRT40M80CTB-13 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 SBRT40M80CTB-13 meets industry standards.
7.What is the process for return or replacement of SBRT40M80CTB-13?
All SBRT40M80CTB-13 units undergo pre-shipment inspection (PSI). If there is an issue with SBRT40M80CTB-13, 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 SBRT40M80CTB-13 part is unused and in its original packaging.
Return procedure for SBRT40M80CTB-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SBRT40M80CTB-13 Tags
-
BAV99-7-F
Diodes Incorporated
-
BAT54C-7-F
Diodes Incorporated
-
BAV99,215
Nexperia USA Inc.
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BAT54SLT1G
onsemi
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BAV70LT1G
onsemi
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BAT54CLT1G
onsemi
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BAT54S-7-F
Diodes Incorporated
-
BAV99LT1G
onsemi
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BAT54S,215
Nexperia USA Inc.
-
BAS40-04LT1G
onsemi
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MMBD1503-TP
Micro Commercial Co
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BAV99WT1G
onsemi
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