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Taiwan Semiconductor Corporation MBRS1545CT-Y
- Part No.:
- MBRS1545CT-Y
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Diode Arrays
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
MBRS1545CT-Y.pdf
- Description:
- DIODE ARR SCHOTT 45V 15A TO263AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,043
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Product details
Overview
MBRS1545CT-Y from Taiwan Semiconductor is a 15A, 45V dual-die Schottky barrier rectifier in TO-263AB (D2PAK) package, featuring low forward voltage (0.84 V at 15 A, 25°C), 150 A surge capability, and junction-to-case thermal resistance of 2°C/W. It serves as a high-efficiency output rectifier in DC-DC converters and switching power supplies.
For engineers reviewing the MBRS1545CT-Y datasheet, MBRS1545CT-Y pinout, MBRS1545CT-Y application, or MBRS1545CT-Y equivalent, key selection criteria include its 45 V repetitive peak reverse voltage, dual-common-cathode configuration, thermal performance (RθJC = 2°C/W), RoHS/halogen-free compliance, and suitability for automated SMT placement.
Technical Context
This dual-die Schottky rectifier integrates two independent 15A/45V diodes in a single TO-263AB (D2PAK) surface-mount package with common cathode connection. Its low forward voltage drop and fast recovery enable high-efficiency operation in high-frequency switching topologies.
The device supports continuous forward current up to 15 A at case temperature ≤110°C, withstands 150 A non-repetitive surge (8.3 ms half-sine), and operates across -55°C to +150°C junction temperature range with guard ring overvoltage protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Forward Current (IF) | 15 A continuous - supports high-output-current DC-DC stages without forced air cooling |
| Repetitive Peak Reverse Voltage (VRRM) | 45 V - suitable for 36 V nominal bus systems with safety margin |
| Surge Current (IFSM) | 150 A (8.3 ms) - handles transient load steps and startup surges in SMPS |
| Forward Voltage (VF) | 0.84 V @ 15 A, 25°C - reduces conduction loss vs. standard PN diodes |
| Junction-to-Case Thermal Resistance (RθJC) | 2°C/W - enables efficient heat transfer to PCB copper or heatsink |
| Reverse Leakage (IR) | 100 µA @ 45 V, 25°C - maintains low standby power in offline adapters |
| Operating Junction Temp | -55°C to +150°C - qualified for industrial and automotive under-hood environments |
Pinout & Package
Package: TO-263AB (D2PAK), surface-mount, matte tin-plated leads, moisture sensitivity level 1 (J-STD-020), UL 94V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Tab) | Cathode (common) | Exposed metal tab is electrically connected to both diode cathodes - must be tied to system ground or output rail |
| Pin 2 | Anode 1 | Input terminal for first Schottky die - connects to transformer secondary or switch node |
| Pin 3 | Anode 2 | Input terminal for second Schottky die - enables dual-output or interleaved rectification |
Key Features
| Feature | Design Value |
|---|---|
| Low forward voltage | 0.84 V @ 15 A, 25°C - cuts conduction loss by ~40% vs. comparable PN rectifiers |
| Guard ring structure | Enhances ruggedness against voltage transients - improves reliability in unregulated input stages |
| Dual-die common-cathode configuration | Enables compact dual-output rectification without discrete cathode tie - saves board space and parasitic inductance |
| Moisture sensitivity level 1 | No bake required before reflow - simplifies manufacturing and reduces process risk |
| RoHS & halogen-free | Complies with IEC 61249-2-21 - meets global environmental compliance requirements for end equipment |
Applications
| Server VRM Output Rectification | Laptop AC Adapter Secondary Side |
|---|---|
Use Scenario: High-current, high-frequency buck converter delivering 12 V/20 A to CPU core logic. IC Role / Device Role / Timing Role: Dual-anode Schottky rectifier providing synchronous-free output rectification with minimal voltage drop. Use Value: 0.84 V VF at full load reduces power loss by >2 W versus 1.1 V alternatives, easing thermal design. | Use Scenario: 19 V, 3.42 A output stage in compact wall-mounted AC-DC adapter. IC Role / Device Role / Timing Role: Common-cathode dual Schottky handling both primary-side clamp and secondary-side rectification paths. Use Value: Single TO-263AB footprint replaces two discrete SMC diodes, cutting assembly cost and layout area by 35%. |
| Industrial DC-DC Isolated Module | Telecom Intermediate Bus Converter |
Use Scenario: 48 V input, 5 V/15 A isolated DC-DC module for PLC I/O modules. IC Role / Device Role / Timing Role: Output rectifier operating at 300 kHz switching frequency with minimal reverse recovery loss. Use Value: 150 A IFSM rating ensures robustness during hot-swap events and short-circuit recovery. | Use Scenario: 36–75 V input, 12 V/12.5 A intermediate bus converter in 1RU telecom shelf. IC Role / Device Role / Timing Role: Dual-anode Schottky enabling interleaved phase operation for ripple cancellation. Use Value: RθJC = 2°C/W allows direct thermal coupling to chassis, eliminating need for thermal vias or paste. |
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-MBR1545CT | Same 15 A / 45 V rating, but RθJC = 2.5°C/W; VF = 0.82 V @ 15 A, 25°C | Slightly higher thermal resistance limits power density in thermally constrained layouts | Preferred where legacy Vishay qualification is required; verify thermal margin with 0.5°C/W penalty |
| ON Semiconductor MBR1545CT | Identical electrical specs; JEDEC TO-263AB footprint but lead finish differs (SnPb vs. matte tin) | Not RoHS-compliant due to SnPb terminations; unsuitable for new EU/China-design products | Select only for repair or legacy SnPb reflow processes; MBRS1545CT-Y is drop-in RoHS replacement |
Compared with VS-MBR1545CT and MBR1545CT, MBRS1545CT-Y delivers superior thermal performance (2°C/W vs. 2.5°C/W), guaranteed RoHS/halogen-free compliance, and J-STD-020 Level 1 moisture handling - making it optimal for high-volume, thermally demanding, and environmentally regulated designs.
Availability
MBRS1545CT-Y is available at Aetrix Electronics and suitable for switching mode power supplies, DC-DC converters, and AC adapters requiring stable component supply, high surge tolerance, and automated SMT compatibility.
Supply support for MBRS1545CT-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 MBRS1545CT-Y belongs to TSC's high-current Schottky rectifier product line, engineered specifically for efficiency-critical secondary-side rectification in high-frequency switched-mode power conversion.
FAQ
What is the pin configuration of MBRS1545CT-Y?
The MBRS1545CT-Y uses a three-terminal TO-263AB (D2PAK) package with Pin 1 as the common cathode (exposed tab), Pin 2 as Anode 1, and Pin 3 as Anode 2. The tab is electrically active and must be connected to the cathode net. This dual-anode, common-cathode arrangement is confirmed in TSC's D2103 datasheet revision and mechanical outline drawing.
Is MBRS1545CT-Y RoHS and halogen-free compliant?
Yes, MBRS1545CT-Y is fully RoHS compliant and halogen-free per IEC 61249-2-21. This is explicitly stated in the "FEATURES" section of the official Taiwan Semiconductor datasheet (Version D2103), and verified via TSC's material declaration documentation and distributor certifications (Digi-Key, Mouser).
What is the maximum junction temperature for MBRS1545CT-Y?
The maximum rated junction temperature for MBRS1545CT-Y is +150°C, with operational range from -55°C to +150°C. This rating is specified in the "ABSOLUTE MAXIMUM RATINGS" table of the D2103 datasheet and supported by thermal derating curves showing 15 A operation up to 110°C case temperature.
Does MBRS1545CT-Y have surge current capability?
Yes, MBRS1545CT-Y supports a non-repetitive peak forward surge current (IFSM) of 150 A for 8.3 ms (half-sine wave), as documented in the Absolute Maximum Ratings table. This enables reliable operation during power-up, output short-circuit recovery, and transient load events in SMPS applications.
What is the forward voltage of MBRS1545CT-Y at full rated current?
At 15 A and 25°C junction temperature, the typical forward voltage of MBRS1545CT-Y is 0.84 V per diode, per the Electrical Specifications table in the D2103 datasheet. At 125°C, VF drops to 0.72 V - a characteristic benefit of Schottky devices that improves efficiency at elevated temperatures.
MBRS1545CT-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):
- 15A
- Voltage - Forward (Vf) (Max) @ If:
- 840 mV @ 15 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)
MBRS1545CT-Y FAQ
1.How can I place an order for MBRS1545CT-Y through Aetrix?
Please submit a Request for Quotation (RFQ) for MBRS1545CT-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 MBRS1545CT-Y reliable?
The price and inventory of MBRS1545CT-Y are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MBRS1545CT-Y is usually 5 days.
3.What payment methods are accepted for MBRS1545CT-Y?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MBRS1545CT-Y transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MBRS1545CT-Y?
MBRS1545CT-Y orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MBRS1545CT-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 MBRS1545CT-Y?
For technical support, including MBRS1545CT-Y datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MBRS1545CT-Y requirements.
6.How does Aetrix verify that MBRS1545CT-Y is sourced from the original manufacturer or authorized distributors?
All MBRS1545CT-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 MBRS1545CT-Y meets industry standards.
7.What is the process for return or replacement of MBRS1545CT-Y?
All MBRS1545CT-Y units undergo pre-shipment inspection (PSI). If there is an issue with MBRS1545CT-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 MBRS1545CT-Y part is unused and in its original packaging.
Return procedure for MBRS1545CT-Y:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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