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Diodes Incorporated SBR1045D1-13
- Part No.:
- SBR1045D1-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
SBR1045D1-13.pdf
- Description:
- DIODE SBR 45V 10A TO252
- Quantity:
- Payment:
- Shipping:
Inventory:27,092
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Product details
Overview
SBR1045D1-13 from Diodes Incorporated is a 10A, 45V Super Barrier Rectifier in TO252 (DPAK) package, engineered for high-efficiency DC/DC conversion and automotive power supplies. It delivers VF = 0.42 V at 5A/25°C, exhibits 90A non-repetitive surge capability, and maintains stable leakage (IR ≤ 500 μA at 45V/125°C), enabling use in engine control units and LED lighting drivers.
For engineers reviewing the SBR1045D1-13 datasheet, SBR1045D1-13 pinout, SBR1045D1-13 application, or SBR1045D1-13 equivalent, key selection criteria include forward voltage at high junction temperature, thermal resistance (RθJC = 3°C/W), AEC-Q101 qualification, soft-switching behavior, and TO252 thermal pad layout compatibility.
Technical Context
This Super Barrier Rectifier replaces conventional Schottky diodes in medium-voltage, high-current rectification where low VF and high-temperature stability are critical. Its patented barrier structure enables 0.42 V forward drop at 5A/25°C and only 0.56 V at 10A/125°C, with soft reverse recovery minimizing EMI in switching converters.
Rated for 45 V repetitive reverse voltage and qualified to AEC-Q101, it supports operation from –65°C to +150°C ambient. The device's 3°C/W junction-to-case thermal resistance and TO252 package allow direct mounting to copper heatsinks, supporting sustained 10A average current at TC = 140°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 45 V - Maximum repetitive reverse blocking voltage; defines safe operating limit in buck converter freewheel paths |
| IO @ TC=140°C | 10 A - Continuous average forward current at case temperature of 140°C; enables compact thermal design without forced air |
| VF @ 5A, 25°C | 0.42 V - Low conduction loss per leg; reduces power dissipation by >30% vs. standard Schottky at same current |
| RθJC | 3 °C/W - Junction-to-case thermal resistance; allows direct thermal coupling to PCB copper or heatsink for efficient heat extraction |
| IFSM (8.3ms) | 90 A - Non-repetitive surge rating; withstands inrush currents during cold-start in automotive ECUs |
| IR @ 45V, 125°C | 500 μA - Reverse leakage at max rated voltage and high temperature; ensures minimal standby loss in always-on modules |
| CT @ 5V, 1MHz | 400 pF - Total junction capacitance; contributes to fast, soft switching with reduced ringing in 100–500 kHz SMPS |
Pinout & Package
Package: TO252 (DPAK), surface-mount, single-diode configuration with exposed thermal pad on underside. Case material is UL 94V-0 molded plastic; terminals feature matte tin over copper leadframe, solderable per MIL-STD-202.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Input current entry point | Connected to switching node (e.g., buck converter high-side MOSFET drain); must handle full peak current |
| Cathode (Pin 2) | Output current exit point | Routes rectified current to output capacitor/rail; low-inductance routing critical for EMI control |
| Thermal Pad (Pin 3) | Thermal and mechanical ground | Electrically tied to cathode internally; requires minimum 240 mm² double-sided copper pour for RθJA = 29°C/W |
Key Features
| Feature | Design Value |
|---|---|
| Patented Super Barrier technology | Enables 0.42 V VF at 5A/25°C while maintaining 45 V VRRM - unattainable with standard Schottky process |
| Soft, fast switching | Low stored charge and controlled reverse recovery minimize voltage overshoot and EMI in 200–400 kHz converters |
| AEC-Q101 qualified | Validated for automotive underhood applications including engine management, ADAS power rails, and body control modules |
| Lead-free & RoHS compliant | Meets EU Directive 2002/95/EC with exemption documentation; compatible with Pb-free reflow profiles (J-STD-020 Level 1) |
Applications
| Automotive Engine Control Unit (ECU) | Industrial DC/DC Converter |
|---|---|
Use Scenario: 12 V input rectification in dual-phase synchronous buck supplying microcontroller core voltage. IC Role / Device Role / Timing Role: Freewheeling diode in asynchronous mode; handles reverse recovery during high-side FET turn-on. Use Value: 0.42 V VF at 5A reduces conduction loss by 0.7 W vs. legacy Schottky, lowering thermal stress on PCB near MCU. | Use Scenario: Output rectification in isolated 48 V to 12 V flyback supplying PLC I/O modules. IC Role / Device Role / Timing Role: Secondary-side rectifier; conducts during transformer reset phase with soft reverse recovery. Use Value: 400 pF CT and soft switching suppress EMI peaks above 30 MHz, easing CISPR-22 Class B compliance. |
| LED Headlamp Driver | Telecom Power Supply |
Use Scenario: Buck-derived constant-current driver for high-brightness automotive LEDs (6–8 A average). IC Role / Device Role / Timing Role: Main output rectifier; sustains 10 A average current at TC ≥ 125°C under sealed housing conditions. Use Value: RθJC = 3°C/W enables direct thermal pad attachment to aluminum heat spreader, eliminating need for thermal vias. | Use Scenario: OR-ing diode in redundant 48 V telecom rectifier shelf with hot-swap capability. IC Role / Device Role / Timing Role: Forward-biased isolation element; blocks reverse current during module insertion/removal transients. Use Value: 90 A IFSM withstands 50 ms inrush surges during live insertion without degradation or latch-up. |
Availability
SBR1045D1-13 is available at Aetrix Electronics and suitable for automotive engine control units, industrial DC/DC converters, LED headlamp drivers, and telecom power supplies requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for SBR1045D1-13 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 and manufacturing operations across Asia and the Americas.
The SBR® Super Barrier Rectifier product line targets high-efficiency, high-reliability power conversion in automotive, industrial, and computing applications where Schottky limitations in voltage rating and temperature stability are critical.
FAQ
What is the thermal pad connection requirement for SBR1045D1-13?
The thermal pad (Pin 3) is electrically connected to the cathode and must be soldered to a minimum 240 mm² double-sided copper area on the PCB. This layout achieves RθJA = 29°C/W and supports 10 A continuous current at TC = 140°C. Use thermal vias under the pad for enhanced heat transfer in multilayer boards.
How does SBR1045D1-13 compare to standard Schottky diodes at 125°C?
At 10 A and 125°C, SBR1045D1-13 exhibits VF = 0.56 V, while typical 45 V Schottkys exceed 0.75 V under identical conditions. Its leakage remains ≤500 μA at 45 V/125°C, versus >5 mA for many Schottkys - enabling reliable operation in under-hood environments without derating.
Is SBR1045D1-13 suitable for synchronous rectification replacement?
No - SBR1045D1-13 is a unidirectional rectifier, not a synchronous MOSFET controller or driver. It functions as a passive freewheeling or output rectifier. For synchronous designs, external gate drivers and N-channel MOSFETs are required; this device serves as the baseline diode alternative when synchronous control is unavailable or cost-prohibitive.
Does SBR1045D1-13 require derating for capacitive loads?
Yes - the datasheet specifies that for capacitive loads, the average forward current must be derated by 20%. This accounts for higher peak currents during capacitor charging transients. At TA = 25°C, the maximum usable IO drops from 10 A to 8 A when driving bulk capacitance directly without inductive filtering.
SBR1045D1-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- SBR®
- Package/Case:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- 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:
- 580 mV @ 10 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 500 µA @ 45 V
- Capacitance @ Vr, F:
- 400pF @ 5V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-252 (DPAK)
- Operating Temperature - Junction:
- -65°C ~ 150°C
SBR1045D1-13 FAQ
1.How can I place an order for SBR1045D1-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SBR1045D1-13 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 SBR1045D1-13 reliable?
The price and inventory of SBR1045D1-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SBR1045D1-13 is usually 5 days.
3.What payment methods are accepted for SBR1045D1-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SBR1045D1-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SBR1045D1-13?
SBR1045D1-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SBR1045D1-13 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 SBR1045D1-13?
For technical support, including SBR1045D1-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SBR1045D1-13 requirements.
6.How does Aetrix verify that SBR1045D1-13 is sourced from the original manufacturer or authorized distributors?
All SBR1045D1-13 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 SBR1045D1-13 meets industry standards.
7.What is the process for return or replacement of SBR1045D1-13?
All SBR1045D1-13 units undergo pre-shipment inspection (PSI). If there is an issue with SBR1045D1-13, 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 SBR1045D1-13 part is unused and in its original packaging.
Return procedure for SBR1045D1-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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