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Taiwan Semiconductor Corporation MBRF2545CT-Y
- Part No.:
- MBRF2545CT-Y
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Diode Arrays
- Package:
- TO-220-3 Full Pack, Isolated Tab
- Datasheet:
-
MBRF2545CT-Y.pdf
- Description:
- DIODE ARR SCHOT 45V 25A ITO220AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,729
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Product details
Overview
MBRF2545CT-Y from Taiwan Semiconductor is a dual-die Schottky barrier rectifier in ITO-220AB package, rated for 25 A average forward current and 45 V repetitive peak reverse voltage, with 0.82 V forward voltage at 25 A and 25°C, used in high-efficiency switching mode power supplies.
For engineers reviewing the MBRF2545CT-Y datasheet, MBRF2545CT-Y pinout, MBRF2545CT-Y application, or MBRF2545CT-Y equivalent, key selection criteria include thermal resistance (RθJC = 1 °C/W), surge capability (IFSM = 200 A), junction temperature range (–55 to +150 °C), and RoHS/halogen-free compliance.
Technical Context
This dual-die common-cathode configuration enables independent anode routing for synchronous rectification or dual-output DC/DC conversion. Each die supports 25 A continuous conduction and withstands 200 A non-repetitive surge at 8.3 ms half-sine waveform.
Thermal design is enabled by low RθJC (1 °C/W) and RθJA (8 °C/W), allowing direct heatsink mounting via the metal tab. The device operates across –55 to +150 °C junction temperature with guard-ring overvoltage protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IF (AV) | 25 A - supports continuous output current in 100–300 W SMPS designs |
| VRRM | 45 V - suitable for 36 V nominal input systems with 20% tolerance margin |
| VF @ 25A, 25°C | 0.82 V - reduces conduction loss vs. silicon diodes, improving efficiency >92% |
| IFSM | 200 A - handles cold-start surges and transient load steps without failure |
| RθJC | 1 °C/W - enables direct thermal coupling to heatsink for stable operation at full load |
| TJ max | +150 °C - allows operation in enclosed industrial enclosures without forced air |
| IR @ 45V, 125°C | 15 mA - limits leakage-induced standby power in high-temperature adapter applications |
Pinout & Package
Package: ITO-220AB - insulated thermally enhanced outline with metal tab (cathode-connected), matte tin-plated leads, UL 94V-0 molding compound, 1.70 g mass, 0.56 N·m max mounting torque.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Tab (center) | Cathode (common) | Electrically and thermally connected to both dies; must be mounted to heatsink with electrical isolation if required |
| Lead 1 | Anode 1 | Independent input path for first rectifier leg; routed separately for dual-output or phase-split topologies |
| Lead 2 | Anode 2 | Independent input path for second rectifier leg; enables interleaved or redundant rectification |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring structure | Prevents premature edge breakdown under transient overvoltage, extending reliability in unregulated AC/DC front-ends |
| Dual-die common-cathode configuration | Reduces component count vs. two discrete Schottkys; simplifies PCB layout for dual-rail outputs |
| JESD 201 Class 1A whisker resistance | Ensures long-term solder joint integrity in automotive and industrial temperature cycling environments |
| Halogen-free per IEC 61249-2-21 | Meets environmental compliance requirements for export to EU, Japan, and China without material declaration burden |
Applications
| Laptop Adapter Power Stage | Industrial DC/DC Converter Output Rectification |
|---|---|
Use Scenario: Secondary-side rectification in 65–90 W universal-input laptop adapters with active clamp or LLC topology. IC Role / Device Role / Timing Role: Dual-anode Schottky rectifier providing low-VF synchronous rectification for +19.5 V and +5 V dual outputs. Use Value: 0.82 V VF at 25 A reduces conduction loss by ~40% vs. fast recovery diodes, enabling passive cooling. | Use Scenario: Output stage of isolated 24 V input to ±15 V dual-rail industrial DC/DC module. IC Role / Device Role / Timing Role: Common-cathode dual rectifier delivering independent +15 V and –15 V rails with shared thermal path. Use Value: RθJC = 1 °C/W allows single heatsink mounting, reducing thermal interface complexity and BOM cost. |
| Telecom PSU Redundancy Module | LED Driver Secondary Rectification |
Use Scenario: OR-ing function in N+1 redundant 48 V telecom power shelves with hot-swap capability. IC Role / Device Role / Timing Role: Anode-isolated Schottky enabling reverse-current blocking while sharing cathode return path. Use Value: 200 A IFSM withstands inrush during parallel module insertion without derating. | Use Scenario: High-current secondary rectification in constant-current LED drivers for street lighting (10–20 A load). IC Role / Device Role / Timing Role: Low-loss rectifier handling pulsed 25 A LED current with minimal thermal rise. Use Value: TJ range (–55 to +150 °C) ensures stable operation inside sealed outdoor luminaires. |
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-25CPH045 | Same ITO-220AB package, 25 A/45 V, VF = 0.79 V @ 25 A, RθJC = 1.1 °C/W | Slightly lower VF improves light-load efficiency; higher RθJC requires marginally larger heatsink | Preferred where ultra-low conduction loss dominates thermal budget constraints |
| ON Semiconductor MBR2545CT | Same ratings and package, but halogen-containing molding compound and no JESD 201 whisker rating | Not compliant with latest halogen-free mandates; unsuitable for EU medical or consumer products | Select only when halogen content is not restricted and whisker testing is not required |
Compared with VS-25CPH045 and MBR2545CT, the MBRF2545CT-Y offers balanced performance: lower VF than MBR2545CT, better thermal resistance than VS-25CPH045, and full halogen-free/JESD 201 compliance for global industrial deployment.
Availability
MBRF2545CT-Y is available at Aetrix Electronics and suitable for switching mode power supplies, DC/DC converters, and AC/DC adapters requiring stable component supply, consistent thermal performance, and RoHS/halogen-free compliance.
Supply support for MBRF2545CT-Y 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 consumer markets since 1979.
The MBRF2545CT-Y belongs to TSC's high-current Schottky rectifier product line, designed specifically for efficiency-critical secondary-side rectification in compact, thermally constrained power supplies.
FAQ
What is the maximum junction temperature rating for MBRF2545CT-Y?
The MBRF2545CT-Y has a maximum junction temperature (TJ) of +150 °C and a minimum of –55 °C. This wide operating range allows reliable use in sealed industrial enclosures and automotive under-hood environments where ambient temperatures exceed 85 °C. Derating curves in the datasheet confirm full 25 A current capability up to 125 °C case temperature.
Is MBRF2545CT-Y pin-compatible with MBR2545CT?
Yes, MBRF2545CT-Y is mechanically and electrically pin-compatible with ON Semiconductor's MBR2545CT - both use ITO-220AB package with identical lead assignment and tab polarity. However, MBRF2545CT-Y adds halogen-free construction and JESD 201 Class 1A whisker resistance, making it suitable for stricter environmental compliance requirements.
What is the forward voltage of MBRF2545CT-Y at 12.5 A and 125 °C?
The forward voltage of MBRF2545CT-Y is 0.73 V at 12.5 A and 125 °C, as specified in the Electrical Specifications table. This value reflects reduced VF at elevated temperature due to Schottky barrier physics and confirms stable performance in high-temperature operation without thermal runaway.
Does MBRF2545CT-Y support common-cathode dual-output configurations?
Yes, MBRF2545CT-Y integrates two independent Schottky dies in a common-cathode configuration. The center tab serves as the shared cathode, while Leads 1 and 2 are isolated anodes - enabling simultaneous rectification of two output rails (e.g., +12 V and +5 V) with a single thermal interface and simplified PCB routing.
What packaging and quantity does MBRF2545CT-Y ship in?
MBRF2545CT-Y ships in ITO-220AB package, packed 50 units per tube. The tube format supports automated pick-and-place assembly and manual prototyping. Lead finish is matte tin per J-STD-002, ensuring compatibility with standard reflow and hand-soldering processes.
MBRF2545CT-Y Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- TO-220-3 Full Pack, Isolated Tab
- Packaging:
- Tube
- 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:
- Through Hole
- Supplier Device Package:
- ITO-220AB
MBRF2545CT-Y FAQ
1.How can I place an order for MBRF2545CT-Y through Aetrix?
Please submit a Request for Quotation (RFQ) for MBRF2545CT-Y 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 MBRF2545CT-Y reliable?
The price and inventory of MBRF2545CT-Y are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MBRF2545CT-Y is usually 5 days.
3.What payment methods are accepted for MBRF2545CT-Y?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MBRF2545CT-Y transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MBRF2545CT-Y?
MBRF2545CT-Y orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MBRF2545CT-Y 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 MBRF2545CT-Y?
For technical support, including MBRF2545CT-Y datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MBRF2545CT-Y requirements.
6.How does Aetrix verify that MBRF2545CT-Y is sourced from the original manufacturer or authorized distributors?
All MBRF2545CT-Y 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 MBRF2545CT-Y meets industry standards.
7.What is the process for return or replacement of MBRF2545CT-Y?
All MBRF2545CT-Y units undergo pre-shipment inspection (PSI). If there is an issue with MBRF2545CT-Y, 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 MBRF2545CT-Y part is unused and in its original packaging.
Return procedure for MBRF2545CT-Y:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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