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Diodes Incorporated SBR1045SP5Q-13
- Part No.:
- SBR1045SP5Q-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- PowerDI™ 5
- Datasheet:
-
SBR1045SP5Q-13.pdf
- Description:
- DIODE SBR 45V 10A POWERDI 5
- Quantity:
- Payment:
- Shipping:
Inventory:5,000
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Product details
Overview
SBR1045SP5Q-13 from Diodes Incorporated is a 10A, 45V Super Barrier Rectifier (SBR®) in PowerDI5 package, engineered for high-efficiency freewheeling and bypass applications in automotive-grade DC-DC converters and solar panel systems. It delivers 0.55V max forward voltage at 10A/25°C, 0.45mA max reverse leakage at 45V/150°C, and is AEC-Q101 qualified with 200°C maximum junction temperature rating.
For engineers reviewing the SBR1045SP5Q-13 datasheet, SBR1045SP5Q-13 pinout, SBR1045SP5Q-13 application, or SBR1045SP5Q-13 equivalent, key selection criteria include its low VF stability across temperature, 180A non-repetitive surge capability, thermal resistance of 3°C/W (junction-to-lead), and PowerDI5 footprint compatibility with high-power PCB layouts requiring minimal thermal pad area.
Technical Context
The SBR1045SP5Q-13 employs patented Super Barrier Rectifier technology to achieve lower forward voltage than Schottky diodes while maintaining superior high-temperature leakage performance. Its 45V VRRM and 10A IO rating are optimized for 12V–48V automotive and industrial power rails where fast recovery and low conduction loss are critical.
With RθJL = 3°C/W and RθJC = 6°C/W, it enables direct thermal coupling to copper heatsinks via the exposed leadframe tab. The device supports continuous operation up to +150°C ambient (with VR ≤ 80% VRRM) and transient junction temperatures up to +200°C for 2 hours-validated under AEC-Q101 stress testing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 45 V - Maximum repetitive reverse blocking voltage without breakdown; defines safe operating range in 48V bus clamping and flyback snubbing. |
| IO (AV) | 10 A - Average forward current rating at TA = +25°C with recommended FR-4 PCB layout; derates to ~6.5A at +100°C ambient. |
| VF (max) | 0.55 V @ 10A, +25°C - Low conduction loss reduces power dissipation by >30% vs. standard PN rectifiers, improving system efficiency in high-current paths. |
| IR (max) | 0.45 mA @ 45V, +150°C - Ultra-low high-temp leakage ensures stable blocking in solar bypass strings exposed to desert ambient conditions. |
| tRR | 23 ns - Fast reverse recovery minimizes switching losses and EMI in high-frequency (>100kHz) DC-DC topologies like synchronous buck converters. |
| RθJL | 3 °C/W - Junction-to-lead thermal resistance enables direct heat transfer to PCB copper; allows compact thermal design without external heatsink in many 10A applications. |
| IFSM | 180 A - Non-repetitive peak surge current (8.3ms half-sine); withstands inrush and fault currents in automotive load-dump scenarios. |
Pinout & Package
Package: PowerDI5 - surface-mount, thermally enhanced plastic package with exposed copper leadframe tab (heatsink) on bottom side. Molded "Green" compound (UL 94V-0), matte tin annealed terminals, 0.093g weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Left Pin (Anode) | Anode connection | Primary current entry point; electrically connected to heatsink tab per datasheet note - must be tied to PCB ground plane or thermal pad for optimal thermal performance. |
| Right Pin (Cathode) | Cathode connection | Current exit path; routed to output rail or switching node; polarity critical for freewheeling path integrity in buck/flyback designs. |
| Bottom Tab (Heatsink) | Thermal & electrical common | Exposed copper tab serves as both thermal interface and electrically connected to left (anode) pin - requires solder mask opening and solid copper fill for thermal management. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control units and ADAS power supplies; includes HTOL, TC, HAST, and ESD testing per IATF16949 production flow. |
| +200°C max junction temperature | Enables reliable operation in under-hood environments and solar concentrator arrays where ambient exceeds +125°C - extends lifetime beyond standard 175°C-rated diodes. |
| Patented SBR® technology | Combines Schottky-like VF with PN-diode leakage performance - achieves 0.55V VF and <0.5mA IR at 150°C, eliminating trade-off between efficiency and thermal stability. |
| PowerDI5 thermal architecture | 3°C/W RθJL enables >7W continuous power dissipation on 2oz FR-4 with minimal pad area - reduces need for oversized thermal vias or external heatsinks. |
| Halogen- and antimony-free "Green" construction | Meets EU RoHS 3 (2015/863/EU), contains <900ppm Br, <900ppm Cl, <1000ppm Sb - compliant for export to EU, Japan, and China without material declaration burden. |
Applications
| Automotive DC-DC Converters | Solar Panel Bypass Circuits |
|---|---|
Use Scenario: Step-down conversion from 48V battery to 12V subsystems in mild-hybrid vehicles. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous buck converter output stage, conducting during low-side FET off-time. Use Value: 0.55V VF minimizes conduction loss at 10A, reducing thermal stress on PCB and enabling smaller passive filtering components. |
Use Scenario: Bypass path across individual PV cell strings in rooftop solar arrays subject to partial shading. IC Role / Device Role / Timing Role: Reverse-current blocking element that shunts current around shaded cells to prevent hot-spot damage. Use Value: 0.45mA IR at +150°C ensures minimal power loss and self-heating under desert operating conditions, preserving string efficiency. |
| Industrial SMPS Outputs | High-Reliability UPS Systems |
Use Scenario: Output rectification in 1kW telecom rectifiers operating continuously at +85°C ambient. IC Role / Device Role / Timing Role: Main output rectifier handling full load current with minimal voltage drop and thermal rise. Use Value: 200°C junction rating and 6°C/W RθJC allow sustained 10A operation without derating when mounted on polyimide PCB with 2oz copper. |
Use Scenario: Battery charging and backup power path in medical-grade uninterruptible power supplies. IC Role / Device Role / Timing Role: Isolation diode preventing backfeed from battery bank into AC/DC front-end during grid failure. Use Value: AEC-Q101 qualification and PPAP capability ensure supply chain traceability and long-term availability required for Class II medical equipment certification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super barrier rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SBRT1045SP5-13 | Same die, identical electrical specs, but not AEC-Q101 qualified; RθJA = 102°C/W (FR-4) vs. 60°C/W (polyimide) for SBR1045SP5Q-13. | Targeted at industrial/commercial SMPS only; lacks PPAP documentation and automotive change control. | Select when automotive qualification is unnecessary and cost sensitivity outweighs thermal margin requirements. |
| SS1045H-13 | Standard Schottky rectifier; VF = 0.52V @ 10A/25°C but IR = 100mA @ 45V/150°C - 220× higher leakage than SBR1045SP5Q-13. | Acceptable in low-temp environments (<+85°C), but unsuitable for solar bypass or under-hood use due to thermal runaway risk. | Choose only for cost-driven, non-automotive, non-solar applications with strict VF budget and relaxed leakage tolerance. |
Compared with SBRT1045SP5-13 and SS1045H-13, the SBR1045SP5Q-13 uniquely balances ultra-low VF, automotive-grade reliability, and high-temperature leakage immunity - making it the sole option for AEC-Q101-compliant solar bypass and 48V automotive DC-DC designs demanding >150°C operational stability.
Availability
SBR1045SP5Q-13 is available at Aetrix Electronics and suitable for automotive power modules, solar energy inverters, and industrial SMPS requiring stable component supply with full AEC-Q101 compliance and IATF16949 traceability.
Supply support for SBR1045SP5Q-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 replace Schottky diodes in high-temperature, high-reliability power conversion - specifically targeting automotive, solar, and industrial applications where leakage-induced thermal runaway must be eliminated.
FAQ
What is the maximum continuous junction temperature for SBR1045SP5Q-13?
The device is guaranteed for continuous operation up to +150°C junction temperature when VR ≤ 80% VRRM. It supports transient junction temperatures up to +200°C for durations ≤2 hours, validated per AEC-Q101 high-temperature operating life testing.
Is the PowerDI5 heatsink tab electrically isolated?
No - the bottom heatsink tab is electrically connected to the left (anode) pin, as confirmed in the datasheet's "Bottom Side Left Pin Heatsink Right Pin" note. PCB layout must treat the tab as part of the anode net and avoid isolation gaps beneath it.
How does SBR1045SP5Q-13 differ from standard Schottky rectifiers in solar bypass use?
Unlike Schottky diodes, which exhibit exponential IR increase above +100°C, the SBR1045SP5Q-13 maintains <0.45mA IR at +150°C - preventing thermal runaway in shaded solar cells. Its 200°C junction rating also exceeds typical Schottky limits of 175°C.
Can SBR1045SP5Q-13 replace SBR1045SP5-13 in existing designs?
Yes - the "Q" suffix denotes automotive qualification (AEC-Q101, PPAP, IATF16949), but all electrical, thermal, and mechanical specifications are identical to the commercial SBR1045SP5-13. No layout or schematic changes are required for drop-in replacement.
SBR1045SP5Q-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- SBR®
- Package/Case:
- PowerDI™ 5
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Super Barrier
- Voltage - DC Reverse (Vr) (Max):
- 45 V
- Current - Average Rectified (Io):
- 10A
- Voltage - Forward (Vf) (Max) @ If:
- 550 mV @ 10 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 450 µA @ 45 V
- Capacitance @ Vr, F:
- 500pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PowerDI™ 5
- Operating Temperature - Junction:
- -65°C ~ 150°C
SBR1045SP5Q-13 FAQ
1.How can I place an order for SBR1045SP5Q-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SBR1045SP5Q-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 SBR1045SP5Q-13 reliable?
The price and inventory of SBR1045SP5Q-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SBR1045SP5Q-13 is usually 5 days.
3.What payment methods are accepted for SBR1045SP5Q-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SBR1045SP5Q-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SBR1045SP5Q-13?
SBR1045SP5Q-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SBR1045SP5Q-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 SBR1045SP5Q-13?
For technical support, including SBR1045SP5Q-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SBR1045SP5Q-13 requirements.
6.How does Aetrix verify that SBR1045SP5Q-13 is sourced from the original manufacturer or authorized distributors?
All SBR1045SP5Q-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 SBR1045SP5Q-13 meets industry standards.
7.What is the process for return or replacement of SBR1045SP5Q-13?
All SBR1045SP5Q-13 units undergo pre-shipment inspection (PSI). If there is an issue with SBR1045SP5Q-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 SBR1045SP5Q-13 part is unused and in its original packaging.
Return procedure for SBR1045SP5Q-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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