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Diodes Incorporated SBR3045SCTB-13
- Part No.:
- SBR3045SCTB-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
SBR3045SCTB-13.pdf
- Description:
- DIODE ARRAY SBR 45V 15A TO263AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,224
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Product details
Overview
SBR3045SCTB-13 from Diodes Incorporated is a 45 V, 30 A total (15 A per leg) dual common-cathode Super Barrier Rectifier in TO263AB (D2PAK) package, featuring 0.65 V max forward voltage at 15 A and 0.2 mA max reverse leakage at 45 V/25°C, designed for high-efficiency DC-DC converters and solar panel bypass applications.
For engineers reviewing the SBR3045SCTB-13 datasheet, SBR3045SCTB-13 pinout, SBR3045SCTB-13 application, or SBR3045SCTB-13 equivalent, key selection criteria include its +200°C maximum junction rating, soft fast switching behavior, patented SBR® technology, and TO263AB thermal performance with 2°C/W RθJC.
Technical Context
This dual-leg rectifier integrates two independent SBR die in a single TO263AB thermally optimized package, each rated for 15 A average forward current and 220 A non-repetitive surge. Its patented Super Barrier structure delivers lower VF than Schottky diodes while maintaining higher TJ capability than standard PN junctions.
The device operates up to +175°C continuous and +200°C selectively rated, with leakage tightly controlled at ≤0.2 mA @ 45 V/25°C and ≤40 µA @ 45 V/125°C. Its soft recovery minimizes EMI in high-frequency switching topologies such as synchronous buck converters and photovoltaic string protection circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 45 V - Maximum repetitive reverse blocking voltage per leg; defines safe operating range in DC-DC output rectification and PV string isolation. |
| IO (Total) | 30 A - Combined average forward current capacity across both legs; enables high-power dual-path designs without paralleling discrete devices. |
| VF (Max) | 0.65 V @ 15 A, 25°C - Low conduction loss directly reduces power dissipation and improves system efficiency in 12–48 V bus applications. |
| RθJC | 2 °C/W per leg - Thermal resistance from junction to case; supports high-power density layouts with direct heatsink mounting via exposed tab. |
| TJ (Max) | +200°C (selectively rated) - Enables reliable operation in under-hood automotive or high-ambient industrial environments where thermal margin is critical. |
| IR (Max) | 0.2 mA @ 45 V, 25°C - Ultra-low reverse leakage preserves battery life and prevents parasitic discharge in solar bypass configurations. |
Pinout & Package
Package: TO263AB (D2PAK), surface-mount, thermally enhanced with exposed copper drain tab (cathode connection). Molded plastic body, UL 94V-0 rated, lead-free and halogen-free "Green" construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Anode A) | Anode of Leg A | Input terminal for first rectifying path; connects to high-side switch node in half-bridge or PV string input. |
| Pin 2 (Anode B) | Anode of Leg B | Independent anode for second rectifying path; enables dual-output or redundant bypass functionality. |
| Pin 3 (Cathode / Tab) | Common Cathode & Thermal Pad | Shared cathode output and primary heat dissipation path; must be soldered to large copper pour or heatsink for rated current handling. |
Key Features
| Feature | Design Value |
|---|---|
| Patented SBR® Technology | Combines Schottky-like low VF with PN-junction thermal robustness-enables 0.65 V @ 15 A while sustaining +200°C junction temperature. |
| Soft, Fast Switching | Controlled reverse recovery minimizes voltage overshoot and EMI in 100–500 kHz DC-DC converters without snubbers. |
| +200°C Selective Junction Rating | Validated thermal margin for automotive under-hood or industrial motor drive applications where ambient exceeds +125°C. |
| Dual Common-Cathode Configuration | Two independent anodes share one cathode terminal-simplifies layout in dual-rail supplies and photovoltaic module-level bypass circuits. |
Applications
| Photovoltaic Bypass Protection | High-Efficiency DC-DC Converters |
|---|---|
Use Scenario: Installed across individual solar cell substrings to prevent hot-spot damage during partial shading or panel mismatch. IC Role / Device Role / Timing Role: Bypass diode conducting reverse current around shaded cells while blocking forward current in normal operation. Use Value: 0.2 mA max IR at 25°C ensures minimal power loss in standby; +200°C rating sustains reliability under concentrated thermal stress in rooftop arrays. | Use Scenario: Output rectification in isolated or non-isolated 48 V–12 V buck converters for telecom and server power supplies. IC Role / Device Role / Timing Role: Secondary-side synchronous rectifier replacement, delivering low-loss unidirectional conduction with soft recovery. Use Value: 0.65 V VF reduces conduction loss by ~30% vs. standard FRDs, improving full-load efficiency by 0.8–1.2% at 15 A per leg. |
| AC-DC Adaptor Secondary Rectification | Industrial Motor Drive Freewheeling |
Use Scenario: Secondary-side rectification in compact 65–100 W laptop adapters and USB-PD chargers. IC Role / Device Role / Timing Role: High-current output rectifier operating at 65–130 kHz switching frequencies. Use Value: TO263AB package with 2°C/W RθJC allows >25 W dissipation with minimal heatsinking-reducing adapter size and cost. | Use Scenario: Freewheeling path for IGBTs in 3-phase inverter stages of HVAC compressors and pump drives. IC Role / Device Role / Timing Role: Inductive energy recirculation path during IGBT turn-off, requiring low VF and soft recovery to limit voltage spikes. Use Value: 220 A IFSM handles peak inductive surges; soft recovery eliminates need for RC snubbers in 15–20 kHz PWM operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super barrier rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SBRT3045CTB-13 | Same SBR® die, identical electrical specs, but uses TO220AB package with insulated tab and vertical mounting. | Preferred where through-hole assembly or mechanical isolation from heatsink is required; lacks TO263AB's thermal pad solderability. | Select when board space permits vertical mounting and thermal interface requires electrical isolation. |
| MBR3045CT-13 | Standard Schottky rectifier; higher VF (0.82 V) and lower TJ max (+150°C); no soft recovery or +200°C rating. | Suitable only for lower-temperature, lower-frequency applications where leakage and EMI are less critical. | Choose only if cost sensitivity outweighs efficiency and thermal margin requirements. |
Compared with SBRT3045CTB-13, SBR3045SCTB-13 offers superior PCB thermal management via direct-tab soldering; versus MBR3045CT-13, it delivers measurable efficiency gain and extended lifetime in thermally constrained or high-frequency systems.
Availability
SBR3045SCTB-13 is available at Aetrix Electronics and suitable for photovoltaic bypass protection, high-efficiency DC-DC converters, and industrial motor drive freewheeling requiring stable component supply and long-term lifecycle assurance.
Supply support for SBR3045SCTB-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.
This device belongs to Diodes' SBR® Super Barrier Rectifier product line, engineered specifically to replace Schottky and fast recovery diodes in high-current, high-temperature power conversion systems where efficiency and reliability are co-prioritized.
FAQ
What is the thermal performance difference between SBR3045SCTB-13 and standard Schottky rectifiers?
SBR3045SCTB-13 achieves 2°C/W RθJC and +200°C selective junction rating due to its patented barrier structure and TO263AB package design. Standard Schottkys like MBR3045CT-13 typically exhibit ≥3.5°C/W RθJC and max +150°C operation, limiting usable current in compact, high-ambient designs.
Can SBR3045SCTB-13 be used in AEC-Q101 qualified automotive applications?
SBR3045SCTB-13 itself is not AEC-Q101 qualified; however, Diodes offers automotive-grade variants (e.g., SBR3045SCTBQ-13) with PPAP documentation, IATF 16949 manufacturing, and full AEC-Q101 stress testing. Contact Diodes or Aetrix for qualified alternatives.
How does the dual common-cathode configuration affect PCB layout?
The shared cathode (Pin 3 + exposed tab) simplifies grounding and thermal management-only one large copper pour is needed for both legs. Anode traces (Pins 1 & 2) must be independently routed to avoid cross-coupling; recommended pad layout matches Diodes' published D2PAK footprint with 5.08 mm centerline spacing.
Is SBR3045SCTB-13 compatible with lead-free reflow profiles?
Yes-SBR3045SCTB-13 features matte tin terminals and green molding compound rated for JEDEC J-STD-020 Level 1 moisture sensitivity. It supports standard Pb-free reflow profiles up to 260°C peak, with no pre-bake required when stored per MSL-1 guidelines.
SBR3045SCTB-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:
- Obsolete
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Super Barrier
- Voltage - DC Reverse (Vr) (Max):
- 45 V
- Current - Average Rectified (Io) (per Diode):
- 15A
- Voltage - Forward (Vf) (Max) @ If:
- 700 mV @ 15 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 500 µA @ 45 V
- Operating Temperature - Junction:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-263AB (D2PAK)
SBR3045SCTB-13 FAQ
1.How can I place an order for SBR3045SCTB-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SBR3045SCTB-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 SBR3045SCTB-13 reliable?
The price and inventory of SBR3045SCTB-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SBR3045SCTB-13 is usually 5 days.
3.What payment methods are accepted for SBR3045SCTB-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SBR3045SCTB-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SBR3045SCTB-13?
SBR3045SCTB-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SBR3045SCTB-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 SBR3045SCTB-13?
For technical support, including SBR3045SCTB-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SBR3045SCTB-13 requirements.
6.How does Aetrix verify that SBR3045SCTB-13 is sourced from the original manufacturer or authorized distributors?
All SBR3045SCTB-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 SBR3045SCTB-13 meets industry standards.
7.What is the process for return or replacement of SBR3045SCTB-13?
All SBR3045SCTB-13 units undergo pre-shipment inspection (PSI). If there is an issue with SBR3045SCTB-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 SBR3045SCTB-13 part is unused and in its original packaging.
Return procedure for SBR3045SCTB-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SBR3045SCTB-13 Tags
-
BAV99-7-F
Diodes Incorporated
-
BAT54C-7-F
Diodes Incorporated
-
BAV99,215
Nexperia USA Inc.
-
BAT54SLT1G
onsemi
-
BAV70LT1G
onsemi
-
BAT54CLT1G
onsemi
-
BAT54S-7-F
Diodes Incorporated
-
BAV99LT1G
onsemi
-
BAT54S,215
Nexperia USA Inc.
-
BAS40-04LT1G
onsemi
-
MMBD1503-TP
Micro Commercial Co
-
BAV99WT1G
onsemi
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