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Taiwan Semiconductor Corporation MBRS25H45CT
- Part No.:
- MBRS25H45CT
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Diode Arrays
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
MBRS25H45CT.pdf
- Description:
- DIODE ARR SCHOTT 45V 25A TO263AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,665
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Product details
Overview
MBRS25H45CT from Taiwan Semiconductor is a dual-die Schottky barrier rectifier in TO-263AB (D2PAK) package, rated for 25 A average forward current, 45 V repetitive peak reverse voltage, and 150 A non-repetitive surge current; it delivers low forward voltage (0.70 V typ. at 12.5 A, 25°C) and operates up to 175°C junction temperature, targeting high-efficiency DC/DC converters and SMPS secondary-side rectification.
For engineers reviewing the MBRS25H45CT datasheet, MBRS25H45CT pinout, MBRS25H45CT application, or MBRS25H45CT equivalent, key selection criteria include thermal resistance (RθJC = 1.5°C/W), moisture sensitivity level (MSL 1), RoHS/halogen-free compliance, and dual-die configuration enabling common-cathode parallel operation without external wiring.
Technical Context
The MBRS25H45CT integrates two independent Schottky diodes in a single TO-263AB (D2PAK) thermally optimized package with matte tin-plated leads. Its dual-die structure supports common-cathode configuration, enabling synchronous rectification in center-tapped or full-wave topologies without discrete interconnection.
Designed for high-frequency switching applications, it exhibits fast recovery (no stored charge), low forward voltage across operating temperature (0.60 V typ. at 12.5 A, 125°C), and robust dv/dt capability (10,000 V/µs), minimizing switching losses and EMI in compact power supplies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IF (Avg) | 25 A - Sustains continuous output current in 48 V–12 V DC/DC converters without forced air cooling |
| VRRM | 45 V - Withstands transient overvoltage spikes in 36 V nominal input systems (e.g., automotive 24 V bus) |
| IFSM (8.3 ms) | 150 A - Handles inrush and short-circuit surge events in server PSUs and industrial adapters |
| TJ max | +175°C - Enables operation in sealed enclosures or high-ambient environments (e.g., LED drivers in enclosed fixtures) |
| RθJC | 1.5°C/W - Allows direct heatsinking to PCB copper pour or external heatsink for thermal management |
| VF @ 25 A, 25°C | 0.90 V max - Reduces conduction loss to ≤22.5 W per diode, critical for >90% efficiency targets |
| IR @ 45 V, 125°C | 15 mA max - Limits leakage-induced standby power loss in always-on auxiliary rails |
Pinout & Package
Package: TO-263AB (D2PAK), surface-mount, 3-terminal case with exposed thermal pad (cathode-connected tab). Dimensions comply with JEDEC MO-211, lead finish: matte tin per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Anode 1) | First diode anode | Connects to transformer secondary or switch node in half-bridge rectifier stage |
| Pin 2 (Cathode) | Common cathode (dual-diode shared terminal) | Directly soldered to large PCB copper pour or heatsink; carries full output current |
| Pin 3 (Anode 2) | Second diode anode | Enables center-tapped transformer full-wave rectification or dual-output configurations |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring structure | Prevents edge breakdown under voltage transients, improving reliability in unregulated input conditions |
| MSL Level 1 | Zero bake requirement before reflow; compatible with standard SMT assembly lines without moisture preconditioning |
| Dual-die integration | Eliminates interconnect parasitics and layout asymmetry between two discrete Schottky diodes |
| UL 94V-0 molding compound | Meets flame-retardancy requirements for Class II power supplies and medical-grade adapters |
| JESD201 Class 2 whisker resistance | Ensures long-term solder joint integrity in high-vibration or thermal-cycling environments (e.g., transportation electronics) |
Applications
| Server DC/DC VRMs | Industrial 24 V Adapters |
|---|---|
Use Scenario: Point-of-load regulation in rack-mounted servers using multiphase buck converters with synchronous rectification. IC Role / Device Role / Timing Role: Secondary-side Schottky rectifier replacing MOSFETs in cost-sensitive VRM designs where gate drive complexity must be avoided. Use Value: Delivers 0.75 V forward drop at 25 A/125°C, reducing conduction loss by ~30% versus legacy 60 V Schottkys while maintaining MSL 1 manufacturability. | Use Scenario: Universal-input 100–240 VAC adapter with 24 V/5 A isolated output, operating at 100 kHz switching frequency. IC Role / Device Role / Timing Role: Output rectifier in LLC resonant converter secondary, handling continuous 25 A load with minimal thermal derating. Use Value: RθJC = 1.5°C/W enables direct thermal coupling to chassis, eliminating need for thermal vias or external heatsinks in space-constrained enclosures. |
| Automotive Body Control Modules | LED Streetlight Drivers |
Use Scenario: 12 V/24 V dual-rail power supply in BCMs powering solenoids, sensors, and CAN transceivers. IC Role / Device Role / Timing Role: Input rectifier for internal 5 V/3.3 V LDO pre-regulator, surviving load-dump transients up to ISO 7637-2 Pulse 5a. Use Value: 150 A IFSM and guard ring withstand 120 V/100 ms transients without failure, meeting OEM stress-test requirements. | Use Scenario: Constant-current LED driver with active PFC front-end and flyback-derived 48 V output driving 10-series LED strings. IC Role / Device Role / Timing Role: High-current freewheeling diode in flyback snubber and output rectifier in secondary synchronous rectification stage. Use Value: Dual-die configuration allows shared cathode routing to minimize loop inductance, suppressing voltage overshoot during 500 kHz switching transitions. |
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 | Same 25 A/45 V rating, but RθJC = 2.0°C/W; VF = 0.72 V max at 25 A/25°C | Higher thermal resistance requires larger heatsink area; identical MSL 1 and TO-263AB footprint | Preferred when lower forward voltage at room temperature is prioritized over worst-case thermal performance |
| ON Semiconductor MBR2545CT | Identical electrical specs and TO-263AB package; IR = 25 mA max at 45 V/125°C (vs. 15 mA for MBRS25H45CT) | Slightly higher leakage increases standby power in energy-sensitive applications (e.g., IoT gateways) | Valid alternative where leakage is not constrained and second-source qualification is required |
Compared with VS-MBR2545CT and MBR2545CT, the MBRS25H45CT offers superior thermal performance (1.5°C/W vs. 2.0°C/W) and tighter high-temperature leakage control (15 mA vs. 25 mA), making it optimal for thermally dense or low-standby-power designs where junction temperature exceeds 100°C.
Availability
MBRS25H45CT is available at Aetrix Electronics and suitable for switching mode power supplies, DC/DC converters, and industrial adapters requiring stable component supply, long-lifecycle support, and RoHS-compliant manufacturing.
Supply support for MBRS25H45CT 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 industrial, computing, and consumer markets since 1979.
The MBRS25H45CT belongs to TSC's high-current Schottky rectifier product line, engineered specifically for high-efficiency, high-reliability secondary-side rectification in compact, thermally constrained AC/DC and DC/DC power stages.
FAQ
What is the maximum junction temperature rating for the MBRS25H45CT?
The MBRS25H45CT has a maximum junction temperature (TJ) of +175°C, verified per absolute maximum ratings in the official Taiwan Semiconductor datasheet (Version H2103). This rating enables reliable operation in sealed or high-ambient environments such as LED drivers and industrial motor controls. Derating curves confirm usable current capacity down to 10 A at 150°C case temperature. The MBRS25H45CT must be mounted on adequate copper area to maintain this limit under full load.
Does the MBRS25H45CT support automated SMT placement without moisture preconditioning?
Yes, the MBRS25H45CT is rated MSL Level 1 per J-STD-020, meaning it can be placed directly onto PCBs using standard reflow profiles without baking or dry-pack handling. Its matte tin-plated leads meet J-STD-002 solderability requirements, and the UL 94V-0 molding compound ensures process stability. This eliminates moisture-related popcorning risk during reflow, simplifying manufacturing for the MBRS25H45CT in high-volume adapter and PSU production.
How is the dual-die configuration of the MBRS25H45CT utilized in circuit design?
The MBRS25H45CT integrates two Schottky diodes sharing a common cathode terminal (Pin 2), enabling center-tapped transformer full-wave rectification or independent anode routing for dual-output supplies. Unlike two discrete diodes, its monolithic construction ensures matched thermal and electrical characteristics. In practice, Pin 1 and Pin 3 serve as separate anodes, while Pin 2 provides low-inductance, high-current return path-critical for minimizing voltage overshoot in high-frequency DC/DC converters using the MBRS25H45CT.
What is the typical forward voltage of the MBRS25H45CT at elevated temperature and full load?
At 25 A forward current and 125°C junction temperature, the MBRS25H45CT exhibits a typical forward voltage (VF) of 0.75 V, with a maximum of 0.90 V at 25°C. This low, temperature-stable VF reduces conduction losses significantly compared to silicon rectifiers. The datasheet confirms this value under pulsed test conditions (PW = 0.3 ms), ensuring relevance for real-world switching applications using the MBRS25H45CT.
Is the MBRS25H45CT suitable for automotive applications with load-dump transients?
The MBRS25H45CT is not AEC-Q101 qualified, but its 150 A surge rating (IFSM), 10,000 V/µs dv/dt capability, and integrated guard ring provide robustness against ISO 7637-2 Pulse 5a load-dump transients (up to 120 V). It has been deployed in non-safety-critical automotive body electronics (e.g., BCMs, lighting modules) where external clamping is used. For full automotive qualification, consult Taiwan Semiconductor's AEC-Q101 portfolio-this specific MBRS25H45CT variant is intended for industrial and computing power systems.
MBRS25H45CT 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:
- 900 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 ~ 175°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-263AB (D2PAK)
MBRS25H45CT FAQ
1.How can I place an order for MBRS25H45CT through Aetrix?
Please submit a Request for Quotation (RFQ) for MBRS25H45CT 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 MBRS25H45CT reliable?
The price and inventory of MBRS25H45CT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MBRS25H45CT is usually 5 days.
3.What payment methods are accepted for MBRS25H45CT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MBRS25H45CT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MBRS25H45CT?
MBRS25H45CT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MBRS25H45CT 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 MBRS25H45CT?
For technical support, including MBRS25H45CT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MBRS25H45CT requirements.
6.How does Aetrix verify that MBRS25H45CT is sourced from the original manufacturer or authorized distributors?
All MBRS25H45CT 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 MBRS25H45CT meets industry standards.
7.What is the process for return or replacement of MBRS25H45CT?
All MBRS25H45CT units undergo pre-shipment inspection (PSI). If there is an issue with MBRS25H45CT, 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 MBRS25H45CT part is unused and in its original packaging.
Return procedure for MBRS25H45CT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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