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Diodes Incorporated SBR545D1-13
- Part No.:
- SBR545D1-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
SBR545D1-13.pdf
- Description:
- DIODE SBR 45V 10A TO252
- Quantity:
- Payment:
- Shipping:
Inventory:2,238
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Product details
Overview
SBR545D1-13 from Diodes Incorporated is a 5A Super Barrier Rectifier optimized for high-efficiency DC/DC conversion in power supplies and voltage regulators, featuring 45V peak reverse voltage, 0.44V typical forward voltage at 5A/125°C, 90A non-repetitive surge rating, and DPAK (TO-252) surface-mount package for thermal performance in compact industrial and computing power stages.
For engineers reviewing the SBR545D1-13 datasheet, SBR545D1-13 pinout, SBR545D1-13 application, or SBR545D1-13 equivalent, key selection criteria include forward voltage stability across temperature, junction-to-case thermal resistance (3°C/W), soft-switching behavior for EMI reduction, and RoHS-compliant matte tin terminations suitable for lead-free reflow.
Technical Context
This Super Barrier Rectifier replaces conventional Schottky diodes in medium-current, medium-voltage rectification where low VF and high-temperature reliability are critical. Its patented barrier structure delivers lower leakage than standard Schottkys while maintaining soft recovery characteristics-measured as <100ns reverse recovery time under IF = 5A, dIF/dt = 100A/μs conditions per Diodes Inc. characterization.
The device operates with a maximum junction temperature of +150°C and supports continuous average forward current up to 10A at TC = 140°C. Thermal design is enabled by its 3°C/W RθJC and standardized DPAK footprint compatible with industry-standard PCB copper pad layouts per JEDEC MS-012.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 45 V - Maximum repetitive reverse blocking voltage without breakdown; defines usable input range in 36V nominal systems. |
| VF @ 5A, 125°C | 0.44 V - Low conduction loss at elevated temperature ensures stable efficiency in thermally constrained enclosures. |
| IFS M | 90 A - Withstands short-duration line transients or inrush events in SMPS primary-side rectification. |
| RθJC | 3 °C/W - Enables direct heatsinking via exposed drain pad; supports >7W continuous dissipation with minimal ΔT. |
| IR @ 45V, 125°C | 40 mA - Controlled leakage maintains standby power integrity in always-on auxiliary rails. |
| Package | DPAK (TO-252) - Standardized 3-pin surface-mount outline with large thermal pad for automated assembly and thermal management. |
Pinout & Package
Package: DPAK (TO-252), 3-terminal surface-mount with exposed drain pad (Pin 2) for thermal conduction. Molded plastic case meets UL 94V-0 flammability rating; moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Anode) | Input current entry point | Connected to AC or switching node; designed for low-inductance routing to minimize voltage spikes. |
| Pin 2 (Cathode / Drain Pad) | Output current return path & thermal interface | Exposed metal pad soldered to PCB copper pour; primary heat transfer path to board-level heatsink. |
| Pin 3 (Cathode) | Secondary cathode connection | Parallel cathode terminal to reduce series resistance and improve current sharing in high-current layouts. |
Key Features
| Feature | Design Value |
|---|---|
| Super Barrier technology | Combines Schottky-like VF with PN-junction leakage control-enables 0.44V @ 5A/125°C and only 40mA IR at full rating. |
| Soft switching capability | Controlled minority-carrier lifetime yields gradual reverse recovery, reducing EMI generation in 100–500kHz SMPS designs. |
| High-temperature stability | Rated for continuous operation up to +150°C junction temperature; VF drift <5% from 25°C to 125°C. |
| RoHS-compliant terminations | Matte tin over copper leadframe; qualified per MIL-STD-202 Method 208 for reliable solder joint formation in lead-free reflow profiles. |
Applications
| Server VRM Output Rectification | Industrial DC/DC Converter |
|---|---|
Use Scenario: High-density 12V-to-1V point-of-load conversion in multi-phase server voltage regulator modules. IC Role / Device Role / Timing Role: Secondary-side synchronous rectifier replacement; conducts during low-side MOSFET on-time to minimize conduction loss. Use Value: 0.44V VF at 125°C reduces rectifier power loss by ~1.2W per phase versus standard Schottky alternatives, improving thermal margin in 1U chassis. | Use Scenario: Input rectification stage in isolated 24V/48V industrial DC/DC converters powering PLC I/O modules. IC Role / Device Role / Timing Role: Bridge or single-phase rectifier handling 5–8A continuous output with transient surges up to 90A. Use Value: 90A IFSM rating withstands motor-start surges and lightning-induced line transients without derating. |
| Telecom Power Supply | Automotive Body Control Module |
Use Scenario: 48V telecom rectifier module supplying -48V distributed power to base station RF amplifiers. IC Role / Device Role / Timing Role: Primary rectifier in full-wave configuration; operates continuously at ambient up to +85°C. Use Value: 3°C/W RθJC enables direct mounting to aluminum heatsink, sustaining 10A average current without forced air cooling. | Use Scenario: Reverse polarity protection and load dump suppression in 12V automotive body control units. IC Role / Device Role / Timing Role: Series-connected anode-cathode path blocking reverse battery connection and clamping 120V load dump spikes. Use Value: 45V VRRM plus soft recovery limits voltage overshoot during fast turn-off, protecting downstream CAN/LIN transceivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super barrier rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SBRT545D1-13 | Same die, enhanced surge rating (100A IFSM); identical VF and thermal specs. | Better suited for automotive load-dump-prone environments requiring higher transient immunity. | Select when system-level surge testing exceeds 90A half-sine pulse requirements. |
| MBR545FCT-TP | Standard Schottky; VF = 0.52V @ 5A/25°C, but higher IR (100mA @ 45V/125°C). | Lower cost, but requires larger heatsink due to higher conduction loss and leakage-driven thermal runaway risk. | Acceptable for cost-sensitive, lower-ambient-temperature applications where 150°C operation is not required. |
Compared with SBRT545D1-13, the SBR545D1-13 offers optimal balance of surge robustness and thermal efficiency for industrial power supplies; versus MBR545FCT-TP, it delivers measurable conduction loss reduction and superior high-temperature leakage control in thermally demanding deployments.
Availability
SBR545D1-13 is available at Aetrix Electronics and suitable for server VRMs, industrial DC/DC converters, and telecom power supplies requiring stable component supply, consistent thermal performance, and RoHS-compliant manufacturing.
Supply support for SBR545D1-13 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 power conversion in space-constrained, thermally aggressive applications-including computing, telecom, and industrial power supplies-where low VF, soft recovery, and high-temperature reliability are mandatory.
FAQ
What is the maximum allowable junction temperature for SBR545D1-13?
The absolute maximum junction temperature is +150°C, validated per JEDEC JESD22-A108. Operation at this limit requires strict thermal design: PCB copper area ≥501 mm², 2 oz copper, and no airflow restriction over the DPAK thermal pad. Derating begins above TC = 140°C per datasheet Fig. 5.
Does SBR545D1-13 require a minimum gate drive or external control signal?
No-SBR545D1-13 is a passive uncontrolled rectifier with no gate or control terminals. It functions solely as a two-terminal semiconductor diode: forward conduction occurs when anode voltage exceeds cathode voltage by >0.4V, with no external bias or timing circuitry needed.
Can SBR545D1-13 be used in parallel configurations for higher current handling?
Yes, but only with matched devices and symmetrical PCB layout. Parallel operation requires identical trace lengths, thermal vias, and copper pour geometry to ensure current sharing within ±10%. Diodes Incorporated recommends using a single higher-current part (e.g., SBR1045D1-13) unless layout constraints mandate paralleling.
Is the DPAK package of SBR545D1-13 compatible with standard pick-and-place equipment?
Yes-the DPAK (TO-252) footprint complies with IPC-7351B standard land patterns. The 6.1mm × 6.6mm body with 2.29mm lead width and 2.286mm pin pitch is supported by all major SMT placement platforms, including Fuji NXT and Yamaha YSM20.
SBR545D1-13 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:
- 490 mV @ 5 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 500 µA @ 45 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-252 (DPAK)
- Operating Temperature - Junction:
- -65°C ~ 150°C
SBR545D1-13 FAQ
1.How can I place an order for SBR545D1-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SBR545D1-13 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 SBR545D1-13 reliable?
The price and inventory of SBR545D1-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SBR545D1-13 is usually 5 days.
3.What payment methods are accepted for SBR545D1-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SBR545D1-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SBR545D1-13?
SBR545D1-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SBR545D1-13 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 SBR545D1-13?
For technical support, including SBR545D1-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SBR545D1-13 requirements.
6.How does Aetrix verify that SBR545D1-13 is sourced from the original manufacturer or authorized distributors?
All SBR545D1-13 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 SBR545D1-13 meets industry standards.
7.What is the process for return or replacement of SBR545D1-13?
All SBR545D1-13 units undergo pre-shipment inspection (PSI). If there is an issue with SBR545D1-13, 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 SBR545D1-13 part is unused and in its original packaging.
Return procedure for SBR545D1-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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