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Diodes Incorporated SBR1040CTB-13
- Part No.:
- SBR1040CTB-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
SBR1040CTB-13.pdf
- Description:
- DIODE ARRAY SBR 40V 5A TO263AB
- Quantity:
- Payment:
- Shipping:
Inventory:13,075
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Product details
Overview
SBR1040CTB-13 from Diodes Incorporated is a dual common-cathode 10A super barrier rectifier in D2PAK (TO-263) package, rated for 40V peak repetitive reverse voltage, 5A average forward current per leg, and 85A non-repetitive surge current - optimized for high-efficiency DC/DC conversion in server power supplies.
For engineers reviewing the SBR1040CTB-13 datasheet, SBR1040CTB-13 pinout, SBR1040CTB-13 application, or SBR1040CTB-13 equivalent, key selection criteria include forward voltage drop at 5A (0.53–0.60 V), thermal resistance (6°C/W junction-to-case), soft switching behavior, RoHS-compliant matte tin terminals, and D2PAK thermal pad layout compatibility.
Technical Context
This dual-leg super barrier rectifier integrates two independent anode-cathode diode elements sharing a common cathode terminal, enabling synchronous rectification in center-tapped or dual-output topologies. Its patented super barrier structure delivers lower forward voltage than Schottky diodes while maintaining superior high-temperature leakage performance up to +175°C junction temperature.
The device operates with soft, fast switching characteristics confirmed by low reverse recovery charge (Qrr not specified but implied by soft recovery waveform in Fig. 2), minimizing EMI in high-frequency SMPS designs. Thermal derating follows a defined curve: full 10A total current is supported only at TA ≤ 50°C, dropping linearly to zero at TA = 125°C under standard PCB layout (2 oz Cu, polyimide).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 40 V - Maximum repetitive reverse blocking voltage per leg; defines safe operating range in 3.3V–12V output rails. |
| IO (per leg) | 5 A - Continuous average forward current per anode leg at TA = 25°C; supports 10A total dual-leg output. |
| VF @ 5A | 0.53–0.60 V - Forward voltage drop at rated DC load; directly reduces conduction loss in high-current secondary-side rectification. |
| IFSM | 85 A - Non-repetitive surge current capability (8.3 ms half-sine); withstands inrush and transient overloads in hot-plug PSUs. |
| RθJC | 6 °C/W - Junction-to-case thermal resistance; enables direct heatsink mounting via exposed D2PAK backside copper tab. |
| TJ Range | −65 to +175 °C - Extended junction temperature rating; supports operation in sealed, high-ambient industrial or telecom power modules. |
Pinout & Package
Package: D2PAK (TO-263), surface-mount, thermally enhanced plastic case with exposed copper drain pad (cathode connection) on underside; UL 94V-0 rated, 1.6 g mass, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 (Lead 1) | Input anode for first rectifier leg | Connects to transformer secondary winding or switch node; carries up to 5A continuous forward current. |
| Anode 2 (Lead 2) | Input anode for second rectifier leg | Enables dual-output or center-tapped configuration; electrically isolated from Anode 1. |
| Cathode (Tab) | Common cathode output terminal | Exposed metal tab serves as both electrical cathode and primary thermal path; must be soldered to large copper pour for thermal management. |
Key Features
| Feature | Design Value |
|---|---|
| Super barrier technology | Combines Schottky-like low VF with PN-junction leakage stability - achieves 0.53 V @ 5A and <0.5 mA IR @ 40V, 25°C. |
| Soft switching behavior | Minimizes voltage overshoot and EMI during turn-off; verified by smooth reverse recovery waveform in datasheet Fig. 2. |
| D2PAK thermal design | 6°C/W RθJC enables >5W dissipation with modest heatsinking; tab mounting eliminates need for discrete thermal interface material. |
| RoHS-compliant terminals | Matte tin finish over copper leadframe ensures reliable solderability per MIL-STD-202 Method 208, no lead contamination risk. |
Applications
| Server VRM Output Rectification | Telecom DC/DC Module |
|---|---|
Use Scenario: High-current, low-voltage output stage of 48V-to-12V or 48V-to-3.3V isolated DC/DC converters in rack-mounted servers. IC Role / Device Role / Timing Role: Dual-leg synchronous rectifier replacing MOSFETs in center-tapped topology; conducts during transformer secondary positive half-cycle. Use Value: Reduces conduction loss vs. standard Schottky (VF ≈ 0.55 V vs. 0.75 V typical), improving efficiency by ~1.2% at 10A load. | Use Scenario: Secondary-side rectification in compact 48V input telecom power modules delivering 5V/12V outputs for base station control cards. IC Role / Device Role / Timing Role: Common-cathode dual rectifier providing isolated dual outputs without cross-conduction risk. Use Value: Enables single-component solution for dual-rail generation; thermal robustness supports operation at +85°C ambient without derating. |
| Industrial PLC Power Supply | Network Switch PoE Midspan |
Use Scenario: Input rectification stage of wide-input (36–75V) DC/DC converters powering programmable logic controllers in factory automation cabinets. IC Role / Device Role / Timing Role: High-reliability rectifier handling line surges and repeated cold-start cycles in harsh environments. Use Value: −65°C to +175°C operating range ensures startup at sub-zero temperatures and sustained operation near heat-generating I/O modules. | Use Scenario: Secondary-side rectification in IEEE 802.3at PoE midspan injectors delivering up to 30W per port to VoIP phones and wireless APs. IC Role / Device Role / Timing Role: Low-VF rectifier minimizing voltage drop across isolation barrier to maintain tight 57V output regulation. Use Value: 0.60 V max VF at 5A limits power loss to <3W per leg, reducing thermal stress in space-constrained midspan enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super barrier rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SBRT1040CTB-13 | Same die, green molding compound; identical electrical specs and thermal performance. | No functional difference; selected when halogen-free compliance is required per IPC-4101D. | Direct material substitution where RoHS + green compound specification applies. |
| MBR1045CT | Standard Schottky; higher VF (0.75 V typ @ 5A), worse high-temp leakage (>10× IR at 125°C). | Limited to lower-ambient applications; unsuitable for sealed telecom modules above 70°C. | Acceptable only if thermal margin exists and efficiency targets are relaxed by ≥0.8%. |
Compared with SBRT1040CTB-13, the green variant offers identical performance with halogen-free packaging; versus MBR1045CT, SBR1040CTB-13 delivers measurable efficiency gain and thermal reliability in high-ambient, high-current rectification where leakage and VF directly impact system BOM cost and cooling design.
Availability
SBR1040CTB-13 is available at Aetrix Electronics and suitable for server VRMs, telecom DC/DC modules, and industrial PLC power supplies requiring stable component supply, long-lifecycle support, and traceable RoHS-compliant sourcing.
Supply support for SBR1040CTB-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® Super Barrier Rectifier product line was developed to bridge the performance gap between Schottky and fast recovery diodes - targeting high-efficiency, high-reliability power conversion in computing, communications, and industrial systems.
FAQ
What is the maximum allowable junction temperature for continuous operation?
The SBR1040CTB-13 has a specified operating junction temperature range of −65°C to +175°C. For continuous operation, the absolute maximum TJ is +175°C; however, sustained operation above +150°C requires careful thermal design due to accelerated degradation of leakage current and forward voltage drift. Derating curves in Figure 3 define safe ambient limits based on PCB layout.
Is the D2PAK package lead-free and RoHS compliant?
Yes - the SBR1040CTB-13 uses matte tin plating over copper leadframe and conforms to EU Directive 2002/95/EC (RoHS). All applicable exemptions are applied per Annex of the directive, and the device carries full RoHS certification documentation from Diodes Incorporated.
Can this part replace a standard Schottky rectifier in an existing design?
Yes, with verification: the SBR1040CTB-13 shares identical D2PAK footprint and pinout with standard Schottky equivalents like MBR1045CT, but delivers lower VF and better high-temperature stability. Layout changes are unnecessary, though thermal simulation should confirm junction temperature remains within 175°C under worst-case load.
What is the recommended PCB pad layout for optimal thermal performance?
Diodes Incorporated specifies a minimum 2 oz copper thermal pad per AP2001 application note, with dimensions matching the D2PAK outline (D ≈ 9.0 mm, E ≈ 10.2 mm). The cathode tab must be fully soldered to this pad using ≥6 thermal vias (0.3 mm diameter, spaced ≤2 mm apart) connecting to internal ground or power planes to achieve the rated 6°C/W RθJC.
SBR1040CTB-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):
- 40 V
- Current - Average Rectified (Io) (per Diode):
- 5A
- Voltage - Forward (Vf) (Max) @ If:
- 600 mV @ 5 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 500 µA @ 40 V
- Operating Temperature - Junction:
- -65°C ~ 175°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-263AB (D2PAK)
SBR1040CTB-13 FAQ
1.How can I place an order for SBR1040CTB-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SBR1040CTB-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 SBR1040CTB-13 reliable?
The price and inventory of SBR1040CTB-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SBR1040CTB-13 is usually 5 days.
3.What payment methods are accepted for SBR1040CTB-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SBR1040CTB-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SBR1040CTB-13?
SBR1040CTB-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SBR1040CTB-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 SBR1040CTB-13?
For technical support, including SBR1040CTB-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SBR1040CTB-13 requirements.
6.How does Aetrix verify that SBR1040CTB-13 is sourced from the original manufacturer or authorized distributors?
All SBR1040CTB-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 SBR1040CTB-13 meets industry standards.
7.What is the process for return or replacement of SBR1040CTB-13?
All SBR1040CTB-13 units undergo pre-shipment inspection (PSI). If there is an issue with SBR1040CTB-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 SBR1040CTB-13 part is unused and in its original packaging.
Return procedure for SBR1040CTB-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SBR1040CTB-13 Tags
-
BAV99-7-F
Diodes Incorporated
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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.
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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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