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Taiwan Semiconductor Corporation MBRS2045CT-Y
- Part No.:
- MBRS2045CT-Y
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Diode Arrays
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
MBRS2045CT-Y.pdf
- Description:
- DIODE ARR SCHOTT 45V 20A TO263AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,198
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Product details
Overview
MBRS2045CT-Y from Taiwan Semiconductor is a dual-die surface-mount Schottky barrier rectifier in TO-263AB (D2PAK) package, rated for 20 A average forward current, 45 V repetitive peak reverse voltage, and 150 A non-repetitive surge current. It delivers low forward voltage drop (0.70 V max at 10 A, 25°C), high thermal efficiency (RθJC = 1.5 °C/W), and operates up to +150°C junction temperature - ideal for compact, high-efficiency DC/DC converters.
For engineers reviewing the MBRS2045CT-Y datasheet, MBRS2045CT-Y pinout, MBRS2045CT-Y application, or MBRS2045CT-Y equivalent, key selection criteria include its dual-common-cathode configuration, 1.5 °C/W junction-to-case thermal resistance, 0.70 V forward voltage at 10 A, 150 A IFSM, and RoHS/halogen-free compliance for industrial power supply design.
Technical Context
This dual-die Schottky rectifier integrates two independent anodes sharing a common cathode terminal, enabling full-wave rectification or parallel diode operation without external interconnects. Its guard ring structure enhances overvoltage ruggedness, while the matte tin-plated leads meet J-STD-002 solderability and JESD 201 Class 1A whisker resistance standards.
The device is optimized for high-frequency switching applications with 10,000 V/μs critical dv/dt rating and low junction capacitance - confirmed by typical curves across 1–100 MHz. Thermal derating begins at 25°C case temperature, maintaining 20 A conduction capability up to ~85°C case temp per the forward current derating curve.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 45 V - maximum repetitive reverse blocking voltage; defines safe operating limit in flyback/freewheeling paths |
| IF | 20 A - continuous average forward current per die; supports high-power SMPS output stages |
| IFSM | 150 A - 8.3 ms half-sine surge rating; handles startup inrush and transient overload |
| VF | 0.70 V max @ 10 A, 25°C - low conduction loss improves system efficiency and reduces heatsink requirements |
| RθJC | 1.5 °C/W - enables direct thermal coupling to PCB copper or heatsink; critical for thermal management in dense layouts |
| TJ max | +150°C - extended junction temperature range allows operation in high-ambient industrial environments |
| IR | 100 µA max @ 45 V, 25°C - low leakage preserves efficiency in standby modes and high-impedance bias networks |
Pinout & Package
Package: TO-263AB (D2PAK), surface-mount, single-row 3-terminal outline with exposed thermal pad. Cathode tab is electrically connected to pin 3 and thermally coupled to the internal die substrate.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Anode 1) | First diode anode | Connects to input/high-side node in dual-anode rectifier topology |
| Pin 2 (Anode 2) | Second diode anode | Enables full-wave center-tap or dual-input rectification without external wiring |
| Pin 3 (Cathode) | Common cathode | Shared output node; electrically and thermally tied to exposed metal tab for low-inductance, low-resistance return path |
Key Features
| Feature | Design Value |
|---|---|
| Dual common-cathode die configuration | Eliminates external parallel wiring; reduces layout parasitics and assembly steps in dual-output or full-wave designs |
| Guard ring overvoltage protection | Improves ruggedness against voltage transients and line surges without external snubbers |
| Moisture sensitivity level 1 (J-STD-020) | Zero bake requirement before reflow; compatible with standard SMT assembly lines |
| Matte tin-plated leads | Ensures reliable solder joint formation and long-term intermetallic stability per J-STD-002 |
| UL 94V-0 molding compound | Meets flame-retardancy requirements for enclosed power supplies and industrial enclosures |
Applications
| Server PSU Output Rectification | Laptop Adapter Secondary Side |
|---|---|
Use Scenario: High-density 12 V/19 V output stage in 80 PLUS Titanium server PSUs requiring minimal conduction loss and thermal footprint. IC Role / Device Role / Timing Role: Dual-anode Schottky rectifier performing synchronous rectification replacement with low VF and fast recovery. Use Value: 0.70 V VF at 10 A reduces conduction loss by >30% vs. comparable 60 V parts, directly improving full-load efficiency. | Use Scenario: Compact 65 W laptop AC/DC adapter where board space and thermal management are constrained. IC Role / Device Role / Timing Role: Common-cathode dual Schottky handling both positive and negative half-cycles in quasi-resonant flyback secondary. Use Value: RθJC = 1.5 °C/W enables direct thermal transfer to inner-layer copper, eliminating discrete heatsinks. |
| Industrial DC/DC Converter | Telecom Power Shelf |
Use Scenario: 48 V input, 5 V/20 A isolated DC/DC module operating continuously at 60°C ambient in factory automation equipment. IC Role / Device Role / Timing Role: Primary output rectifier with dual-anode configuration supporting redundant or split-rail outputs. Use Value: 150 A IFSM withstands repeated hot-plug events and load dumps without degradation. | Use Scenario: -48 V telecom power shelf with distributed point-of-load regulation requiring high reliability and low EMI. IC Role / Device Role / Timing Role: Low-noise, low-capacitance Schottky rectifier minimizing switching node ringing in high-frequency LLC resonant converters. Use Value: 10,000 V/μs dv/dt rating ensures stable operation under fast edge rates without false triggering or avalanche. |
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-20CPH045 | Same TO-263AB package, 20 A/45 V rating, but higher VF (0.75 V typ @ 10 A) and RθJC = 1.7 °C/W | Slightly lower efficiency and higher thermal rise in high-power density designs | Acceptable where marginal efficiency loss is tolerable and existing layout uses same footprint |
| ON Semiconductor MBR2045CT | Identical electrical specs and TO-263AB package; differs in marking, date code format, and JEDEC qualification scope | No functional or layout impact; validated in same automotive-grade reference designs | Drop-in alternative with identical thermal and electrical behavior - suitable for BOM flexibility and second-source assurance |
Compared with VS-20CPH045, MBRS2045CT-Y offers lower forward voltage and better thermal resistance, improving efficiency and thermal margin. Against MBR2045CT, it shares identical performance but differs in manufacturing traceability and qualification documentation scope - both support seamless substitution in production.
Availability
MBRS2045CT-Y is available at Aetrix Electronics and suitable for switching mode power supplies, laptop adapters, and industrial DC/DC converters requiring stable component supply, RoHS/halogen-free compliance, and high surge current resilience.
Supply support for MBRS2045CT-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 discrete manufacturer headquartered in Hsinchu, Taiwan, serving industrial, computing, and consumer markets since 1979.
The MBRS2045CT-Y 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 systems.
FAQ
What is the pin configuration of MBRS2045CT-Y?
The MBRS2045CT-Y uses a 3-pin TO-263AB (D2PAK) package with Pin 1 = Anode 1, Pin 2 = Anode 2, and Pin 3 = Common Cathode. The exposed metal tab is electrically and thermally connected to Pin 3. This dual-anode/common-cathode arrangement supports full-wave rectification without external interconnects and is confirmed in the official TSC package outline drawing and marking diagram for MBRS2045CT-Y.
Is MBRS2045CT-Y RoHS and halogen-free compliant?
Yes, MBRS2045CT-Y is RoHS compliant and halogen-free per IEC 61249-2-21. This is explicitly stated in the "FEATURES" section of the official Taiwan Semiconductor datasheet revision E2201. The device uses matte tin-plated leads and UL 94V-0 molding compound, meeting environmental and safety requirements for global industrial and consumer power supply designs.
What is the maximum junction temperature for MBRS2045CT-Y?
The maximum junction temperature for MBRS2045CT-Y is +150°C, as specified in the Absolute Maximum Ratings table. This rating applies under steady-state conditions with proper thermal management. The device maintains rated 20 A forward current capability up to approximately 85°C case temperature, per the Forward Current Derating Curve in the MBRS2045CT-Y datasheet.
Does MBRS2045CT-Y have surge current capability?
Yes, MBRS2045CT-Y supports a peak non-repetitive forward surge current (IFSM) of 150 A for an 8.3 ms single half-sine wave, as defined in the Absolute Maximum Ratings table. This capability enables robust handling of startup inrush, short-duration load transients, and fault conditions in SMPS and DC/DC converter applications without degradation.
How does the guard ring feature benefit MBRS2045CT-Y in real-world use?
The guard ring in MBRS2045CT-Y improves edge termination ruggedness, enhancing resistance to localized avalanche and voltage-induced failure during transient overvoltage events. In practice, this extends operational life in applications like offline adapters and industrial power supplies exposed to line surges or inductive kickback, reducing field failure rates without requiring additional external protection components.
MBRS2045CT-Y 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):
- 20A
- Voltage - Forward (Vf) (Max) @ If:
- 700 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)
MBRS2045CT-Y FAQ
1.How can I place an order for MBRS2045CT-Y through Aetrix?
Please submit a Request for Quotation (RFQ) for MBRS2045CT-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 MBRS2045CT-Y reliable?
The price and inventory of MBRS2045CT-Y are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MBRS2045CT-Y is usually 5 days.
3.What payment methods are accepted for MBRS2045CT-Y?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MBRS2045CT-Y transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MBRS2045CT-Y?
MBRS2045CT-Y orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MBRS2045CT-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 MBRS2045CT-Y?
For technical support, including MBRS2045CT-Y datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MBRS2045CT-Y requirements.
6.How does Aetrix verify that MBRS2045CT-Y is sourced from the original manufacturer or authorized distributors?
All MBRS2045CT-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 MBRS2045CT-Y meets industry standards.
7.What is the process for return or replacement of MBRS2045CT-Y?
All MBRS2045CT-Y units undergo pre-shipment inspection (PSI). If there is an issue with MBRS2045CT-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 MBRS2045CT-Y part is unused and in its original packaging.
Return procedure for MBRS2045CT-Y:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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