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Taiwan Semiconductor Corporation MBRS1045CT
- Part No.:
- MBRS1045CT
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Diode Arrays
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
MBRS1045CT.pdf
- Description:
- DIODE ARR SCHOTT 45V 10A TO263AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,852
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Product details
Overview
MBRS1045CT from Taiwan Semiconductor is a dual-die Schottky barrier rectifier in TO-263AB (D2PAK) package, rated for 10A average forward current, 45V repetitive peak reverse voltage, and 120A non-repetitive surge current; it delivers low forward voltage (0.70V typ. at 5A/25°C) for high-efficiency DC–DC converters and SMPS secondary-side rectification.
For engineers reviewing the MBRS1045CT datasheet, MBRS1045CT pinout, MBRS1045CT application, or MBRS1045CT equivalent, key selection criteria include its 45V VRRM, dual-common-cathode configuration, 2°C/W junction-to-case thermal resistance, and J-STD-020 Level 1 moisture sensitivity-critical for reflow-compatible high-current power stage design.
Technical Context
The MBRS1045CT integrates two independent Schottky diodes in a single TO-263AB thermally enhanced surface-mount package with common cathode connection. Its guard ring structure provides overvoltage protection, and its 10,000 V/μs critical dv/dt rating supports fast-switching topologies without spurious turn-on.
Designed for operation from –55°C to +150°C junction temperature, the device maintains low leakage (<100 µA at 25°C, <15 mA at 100°C) and stable forward voltage across temperature-enabling reliable performance in compact, high-density power supplies where thermal management is constrained.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 45 V - Maximum reverse blocking capability for 48V-input DC–DC stages and 36V-rated SMPS outputs |
| IF | 10 A - Continuous forward current per diode, enabling single-device handling of high-output-current rails |
| IFSM | 120 A - Peak surge rating supports inrush and transient overload without failure |
| VF @ 5A, 25°C | 0.70 V max - Low conduction loss improves efficiency and reduces heatsink requirements |
| RθJC | 2 °C/W - Efficient thermal path enables direct PCB copper pour cooling in high-power layouts |
| TJ max | +150 °C - Extended junction temperature rating allows operation in sealed or high-ambient environments |
| Moisture Sensitivity | Level 1 (J-STD-020) - No dry-pack or bake required before standard SMT reflow |
Pinout & Package
Package: TO-263AB (D2PAK), surface-mount, 3-terminal, common-cathode dual-diode configuration with exposed thermal pad on underside for enhanced heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Anode A) | Anode of Diode A | Connects to input/high-side node of first rectification path |
| Pin 2 (Cathode) | Common Cathode | Shared output node for both diodes; must be connected to main ground/power return plane |
| Pin 3 (Anode B) | Anode of Diode B | Connects to input/high-side node of second independent rectification path |
Key Features
| Feature | Design Value |
|---|---|
| Low forward voltage drop | 0.70 V max at 5A/25°C reduces conduction loss by >30% vs. comparable silicon rectifiers |
| Guard ring overvoltage protection | Enhances ruggedness against voltage transients in unregulated or flyback-derived supplies |
| High surge current capability | 120A IFSM supports robust startup and fault tolerance in industrial power modules |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS directives for environmentally regulated end equipment |
| Automated placement compatible | TO-263AB outline and matte tin plating ensure reliable pick-and-place and solder wetting |
Applications
| Server VRM Output Stage | Industrial DC–DC Converter |
|---|---|
Use Scenario: High-current, low-voltage output rectification in 48V-to-12V/5V server voltage regulator modules. IC Role / Device Role / Timing Role: Dual common-cathode Schottky rectifier providing synchronous rectification replacement with minimal layout footprint. Use Value: 0.70 V forward drop at 5A lowers power loss by ~1.5W per diode versus legacy solutions, easing thermal design. | Use Scenario: Secondary-side rectification in isolated 24V-input industrial DC–DC converters powering PLC I/O modules. IC Role / Device Role / Timing Role: Dual-diode rectifier delivering parallel current paths for redundancy and thermal spreading. Use Value: 2°C/W RθJC enables direct thermal coupling to inner-layer copper, eliminating discrete heatsinks. |
| USB-C PD Adapter | Telecom Power Shelf |
Use Scenario: Output rectification in compact 65W USB-C Power Delivery adapters operating at high switching frequencies. IC Role / Device Role / Timing Role: Fast-recovery Schottky rectifier minimizing reverse recovery loss in 200–500 kHz flyback designs. Use Value: <100 µA reverse leakage at 25°C ensures low standby power compliance with DOE Level VI and EU CoC v5. | Use Scenario: Redundant 48V-to-12V conversion in telecom power shelves requiring high reliability and thermal margin. IC Role / Device Role / Timing Role: Dual-diode assembly used in parallel configurations for N+1 redundancy and derated current sharing. Use Value: 150°C max junction temperature and –55°C min storage rating support operation across extended environmental profiles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-MBR1045CT | Identical VRRM (45V), IF (10A), TO-263AB package; VF = 0.72 V max @ 5A/25°C - slightly higher conduction loss | Same dual-common-cathode topology; validated in telecom and industrial SMPS per Vishay application notes | Preferred where Vishay supply chain alignment or qualification history is required |
| ON Semiconductor MBR1045CT | Same ratings and package; VF = 0.75 V max @ 5A/25°C; RθJC = 2.5°C/W - 25% higher thermal resistance | Used in consumer adapter reference designs; lower thermal performance limits high-derating use cases | Select when cost sensitivity outweighs thermal margin needs in ambient-controlled environments |
Compared with VS-MBR1045CT and MBR1045CT, the MBRS1045CT offers the lowest forward voltage and best thermal resistance in its class-making it optimal for space-constrained, thermally aggressive applications like server VRMs and high-density telecom power.
Availability
MBRS1045CT is available at Aetrix Electronics and suitable for switching mode power supplies, DC–DC converters, and AC–DC adapters requiring stable component supply, full traceability, and long-term production continuity.
Supply support for MBRS1045CT 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and power semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving industrial, computing, and communications markets since 1979.
The MBRS1045CT belongs to TSC's high-current Schottky rectifier product line, engineered specifically for efficiency-critical secondary-side rectification in high-frequency switch-mode power supplies and DC–DC converters.
FAQ
What is the maximum junction temperature rating for the MBRS1045CT?
The MBRS1045CT has a maximum junction temperature (TJ) rating of +150°C, verified per absolute maximum ratings table in the official Taiwan Semiconductor datasheet revision M2103. This allows sustained operation in enclosed or high-ambient-temperature environments when mounted on adequate copper area. Thermal design must respect the 2°C/W junction-to-case resistance to avoid exceeding this limit under full 10A load.
Does the MBRS1045CT have a common-cathode or common-anode configuration?
The MBRS1045CT uses a dual-diode common-cathode configuration, with Pin 2 serving as the shared cathode terminal and Pins 1 and 3 as independent anodes. This arrangement is confirmed in the marking diagram and mechanical outline on page 6 of the Taiwan Semiconductor datasheet M2103 and is essential for proper implementation in center-tapped or dual-output rectifier circuits.
What is the forward voltage specification for MBRS1045CT at 10A and 125°C?
Per the Electrical Specifications table in the Taiwan Semiconductor datasheet M2103, the MBRS1045CT exhibits a maximum forward voltage of 0.67 V at 10A and 125°C junction temperature. This low, temperature-stable VF supports high-efficiency operation even under worst-case thermal conditions in high-power density designs.
Is the MBRS1045CT suitable for lead-free reflow soldering processes?
Yes, the MBRS1045CT is qualified for lead-free reflow soldering: its matte tin-plated terminals meet J-STD-002 solderability requirements, and its moisture sensitivity level is rated J-STD-020 Level 1-meaning it can be stored indefinitely at ≤30°C/60% RH and processed using standard IPC/JEDEC-compliant reflow profiles without baking.
What packaging option is available for MBRS1045CT?
The MBRS1045CT is supplied in TO-263AB (D2PAK) package on 800-unit tape-and-reel format, as specified in the Ordering Information section of the Taiwan Semiconductor datasheet M2103. This packaging supports automated SMT assembly and is compatible with industry-standard pick-and-place equipment.
MBRS1045CT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- 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:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 45 V
- Current - Average Rectified (Io) (per Diode):
- 10A
- Voltage - Forward (Vf) (Max) @ If:
- 800 mV @ 10 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 100 µA @ 45 V
- Operating Temperature - Junction:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-263AB (D2PAK)
MBRS1045CT FAQ
1.How can I place an order for MBRS1045CT through Aetrix?
Please submit a Request for Quotation (RFQ) for MBRS1045CT 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 MBRS1045CT reliable?
The price and inventory of MBRS1045CT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MBRS1045CT is usually 5 days.
3.What payment methods are accepted for MBRS1045CT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MBRS1045CT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MBRS1045CT?
MBRS1045CT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MBRS1045CT 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 MBRS1045CT?
For technical support, including MBRS1045CT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MBRS1045CT requirements.
6.How does Aetrix verify that MBRS1045CT is sourced from the original manufacturer or authorized distributors?
All MBRS1045CT 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 MBRS1045CT meets industry standards.
7.What is the process for return or replacement of MBRS1045CT?
All MBRS1045CT units undergo pre-shipment inspection (PSI). If there is an issue with MBRS1045CT, 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 MBRS1045CT part is unused and in its original packaging.
Return procedure for MBRS1045CT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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