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Taiwan Semiconductor Corporation MBRS2545CT
- Part No.:
- MBRS2545CT
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Diode Arrays
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
MBRS2545CT.pdf
- Description:
- DIODE ARR SCHOTT 45V 25A TO263AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,202
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Product details
Overview
MBRS2545CT from Taiwan Semiconductor is a 25A, 45V dual-die Schottky barrier rectifier in TO-263AB (D2PAK) package, optimized for high-efficiency DC/DC conversion with low forward voltage (0.65 V at 12.5 A, 25°C) and high surge capability (200 A IFSM). It serves as the output rectifier in compact switching power supplies.
For engineers reviewing the MBRS2545CT datasheet, MBRS2545CT pinout, MBRS2545CT application, or MBRS2545CT equivalent, key selection criteria include its 45 V VRRM rating, dual-common-cathode configuration, thermal resistance of 1°C/W (junction-to-case), and RoHS/halogen-free compliance for industrial and adapter designs.
Technical Context
This device integrates two independent Schottky diodes in a single TO-263AB surface-mount package with common cathode connection. Its low VF and fast recovery support high-frequency operation up to 20 kHz square-wave rated current (IFRM = 25 A), minimizing conduction losses in synchronous rectification topologies.
The junction temperature range spans −55°C to +150°C, and it features guard ring overvoltage protection plus JESD201 Class 2 whisker resistance. Moisture sensitivity level is J-STD-020 Level 1, enabling standard reflow without baking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 45 V - Maximum repetitive reverse voltage; defines safe blocking capability in 48 V rail applications |
| IF | 25 A - Continuous forward current per diode; supports high-current outputs without forced air cooling |
| VF @ 12.5 A, 25°C | 0.65 V max - Low conduction loss enables >92% efficiency in 12 V output SMPS |
| IFSM | 200 A - Peak non-repetitive surge current; withstands startup inrush and transient load steps |
| RθJC | 1 °C/W - Enables direct heatsinking to PCB copper; allows 25 A operation at TJ ≤ 150°C with minimal thermal margin |
| IR @ 45 V, 25°C | 200 µA max - Low leakage preserves light-load efficiency and reduces standby power |
| TJ max | +150 °C - Rated junction temperature permits operation in enclosed, high-ambient environments |
Pinout & Package
Package: TO-263AB (D2PAK), surface-mount, 3-terminal case with exposed thermal pad. Cathode terminals are internally tied; anode pins are separate and marked on device body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Anode A) | First diode anode | Connects to input/high-side node; electrically isolated from Pin 2 |
| Pin 2 (Anode B) | Second diode anode | Connects to second input path; enables dual-output or interleaved rectification |
| Pin 3 (Cathode) | Common cathode | Single output node shared by both diodes; soldered to large PCB copper pour for thermal dissipation |
Key Features
| Feature | Design Value |
|---|---|
| Low forward voltage (VF) | 0.65 V max at 12.5 A ensures <0.8 W conduction loss per diode at mid-load, reducing thermal stress |
| Dual-die common-cathode configuration | Enables space-efficient dual-output rectification or phase-interleaved designs without discrete pairing |
| Guard ring overvoltage protection | Improves ruggedness against line transients and ESD events without external clamping components |
| J-STD-020 Level 1 moisture sensitivity | Eliminates pre-bake requirement during SMT assembly, lowering manufacturing cost and cycle time |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU directives for environmentally regulated end equipment |
Applications
| Server VRM Output Rectification | Laptop Adapter Secondary Side |
|---|---|
Use Scenario: High-density 12 V / 5 V VRM delivering up to 60 A to CPU/GPU cores. IC Role / Device Role / Timing Role: Dual-anode Schottky rectifier providing parallel current paths with shared cathode output to minimize PCB trace inductance. Use Value: 0.65 V VF at 12.5 A reduces total conduction loss by ~35% vs. comparable 60 V parts, directly improving VRM efficiency and thermal headroom. | Use Scenario: 19 V, 3.42 A AC/DC adapter powering ultrabooks with tight size constraints. IC Role / Device Role / Timing Role: Output rectifier in flyback secondary, operating at 65–132 kHz with synchronous control. Use Value: TO-263AB package delivers 1°C/W thermal resistance, enabling full 25 A rating with only 2-layer PCB copper, eliminating need for external heatsinks. |
| Industrial DC/DC Converter | Telecom Power Shelf Rectification |
Use Scenario: 24 V input, 5 V/15 A isolated DC/DC module for PLC I/O modules. IC Role / Device Role / Timing Role: Secondary-side synchronous rectifier replacing MOSFET drivers in cost-sensitive designs. Use Value: 200 A IFSM rating handles 10× overload surges during field-wiring faults, enhancing system reliability without derating. | Use Scenario: -48 V telecom shelf with redundant 12 V distribution bus feeding multiple line cards. IC Role / Device Role / Timing Role: Common-cathode dual rectifier supplying parallel 12 V rails with shared thermal management. Use Value: Guard ring structure sustains 150% rated VRRM for >100 ms during hot-swap transients, preventing catastrophic failure during card insertion. |
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-MBR2545CT | Identical VRRM (45 V), IF (25 A), and TO-263AB package; VF = 0.67 V max at 12.5 A (slightly higher than MBRS2545CT's 0.65 V) | Same dual-common-cathode topology; used in identical SMPS and adapter roles | Select when dual-sourcing is required; verify layout compatibility due to minor die size variation |
| ON Semiconductor MBR2545CT | VRRM = 45 V, IF = 25 A, same package; VF = 0.68 V max at 12.5 A; RθJC = 1.2°C/W (vs. 1.0°C/W for MBRS2545CT) | Compatible in most 48 V-input adapters but may require larger copper area for thermal management | Prefer for legacy ON Semi design continuity; expect ~0.3°C/W higher junction rise under identical conditions |
Compared with VS-MBR2545CT and MBR2545CT, the MBRS2545CT offers the lowest specified VF (0.65 V) and best thermal resistance (1.0°C/W), making it optimal for thermally constrained, high-efficiency 45 V-class rectification where every millivolt and degree matters.
Availability
MBRS2545CT is available at Aetrix Electronics and suitable for switching mode power supplies, laptop adapters, and industrial DC/DC converters requiring stable component supply and long-term production continuity.
Supply support for MBRS2545CT 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 discrete manufacturer headquartered in Hsinchu, Taiwan, serving global industrial and computing markets since 1979.
The MBRS2545CT belongs to TSC's MBRS25xCT family of high-current Schottky rectifiers designed specifically for high-efficiency, surface-mount secondary-side rectification in compact, high-frequency power converters.
FAQ
What is the maximum junction temperature rating for MBRS2545CT?
The MBRS2545CT has a maximum junction temperature (TJ max) of +150°C, verified per absolute maximum ratings in the official Taiwan Semiconductor datasheet Version N2103. This rating allows reliable operation in enclosed industrial enclosures or high-ambient environments when mounted on ≥2 oz copper with adequate thermal relief. Derating begins above 25°C ambient per the forward current derating curve in Figure 1.
Does MBRS2545CT support automated SMT placement?
Yes, MBRS2545CT is explicitly qualified for automated placement per its mechanical data sheet: it features matte tin-plated leads compliant with J-STD-002, meets JESD201 Class 2 whisker resistance, and carries J-STD-020 Level 1 moisture sensitivity-eliminating bake requirements before reflow. Its TO-263AB outline is compatible with standard pick-and-place nozzles calibrated for D2PAK devices.
What is the reverse leakage current specification for MBRS2545CT at 125°C?
At rated reverse voltage (45 V) and junction temperature of 125°C, the MBRS2545CT exhibits a maximum reverse current (IR) of 15 mA per diode, as specified in the Electrical Specifications table (Note 2, PW = 30 ms pulse test). This value is critical for standby power budgeting in energy-efficient adapters and must be verified under actual thermal conditions during design validation.
Is MBRS2545CT halogen-free and RoHS compliant?
Yes, MBRS2545CT is certified halogen-free per IEC 61249-2-21 and RoHS compliant per EU Directive 2011/65/EU, as stated in the Features section of the Taiwan Semiconductor datasheet Version N2103. The molding compound is UL 94V-0 rated, and terminal plating uses lead-free matte tin-fully aligned with environmental compliance requirements for commercial and industrial end equipment.
How is the pin configuration arranged in MBRS2545CT's TO-263AB package?
The MBRS2545CT uses a 3-pin TO-263AB (D2PAK) configuration: Pin 1 and Pin 2 are isolated anodes for the two internal Schottky dies, while Pin 3 is the common cathode terminal. Polarity is marked on the device body per the Marking Diagram in datasheet page 6. The exposed backside thermal pad is electrically connected to the cathode and must be soldered to a large copper pour for thermal performance.
MBRS2545CT 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):
- 25A
- Voltage - Forward (Vf) (Max) @ If:
- 820 mV @ 25 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 200 µA @ 45 V
- Operating Temperature - Junction:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-263AB (D2PAK)
MBRS2545CT FAQ
1.How can I place an order for MBRS2545CT through Aetrix?
Please submit a Request for Quotation (RFQ) for MBRS2545CT 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 MBRS2545CT reliable?
The price and inventory of MBRS2545CT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MBRS2545CT is usually 5 days.
3.What payment methods are accepted for MBRS2545CT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MBRS2545CT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MBRS2545CT?
MBRS2545CT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MBRS2545CT 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 MBRS2545CT?
For technical support, including MBRS2545CT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MBRS2545CT requirements.
6.How does Aetrix verify that MBRS2545CT is sourced from the original manufacturer or authorized distributors?
All MBRS2545CT 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 MBRS2545CT meets industry standards.
7.What is the process for return or replacement of MBRS2545CT?
All MBRS2545CT units undergo pre-shipment inspection (PSI). If there is an issue with MBRS2545CT, 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 MBRS2545CT part is unused and in its original packaging.
Return procedure for MBRS2545CT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MBRS2545CT Tags
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