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Taiwan Semiconductor Corporation MBRS15H45CT
- Part No.:
- MBRS15H45CT
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Diode Arrays
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
MBRS15H45CT.pdf
- Description:
- DIODE ARR SCHOTT 45V 15A TO263AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,551
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Product details
Overview
MBRS15H45CT from Taiwan Semiconductor is a 15 A, 45 V dual-die Schottky barrier rectifier in TO-263AB (D2PAK) package, optimized for high-efficiency DC/DC conversion with low forward voltage (0.64 V typ. @ 7.5 A, 25°C) and 150 A surge capability. It serves as the output rectifier in high-frequency switching power supplies.
For engineers reviewing the MBRS15H45CT datasheet, MBRS15H45CT pinout, MBRS15H45CT application, or MBRS15H45CT equivalent, key selection criteria include forward voltage at operating current and temperature, thermal resistance (RθJC = 2°C/W), reverse leakage at 125°C (≤10 mA), and TO-263AB mechanical compatibility with automated SMT assembly.
Technical Context
The MBRS15H45CT integrates two independent Schottky diodes in a common-cathode configuration within a single TO-263AB thermally enhanced surface-mount package. Its guard ring structure provides overvoltage protection, and its JESD201 Class 2 whisker-resistant matte tin plating ensures solder joint reliability.
Designed for operation up to 175°C junction temperature, it delivers stable performance under high ambient conditions typical in enclosed SMPS and adapter designs. The device's 10,000 V/µs dv/dt rating supports robust commutation in fast-switching topologies without spurious turn-on.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Forward Current (IF) | 15 A continuous - supports high-output-current DC/DC converters without forced air cooling |
| Peak Repetitive Reverse Voltage (VRRM) | 45 V - suitable for 36 V nominal bus systems with margin for transient overshoot |
| Surge Current (IFSM) | 150 A (8.3 ms half-sine) - withstands inrush and fault currents in AC/DC adapters |
| Junction-to-Case Thermal Resistance | 2°C/W - enables efficient heat transfer to PCB copper pour or heatsink in D2PAK footprint |
| Forward Voltage (VF) | 0.68 V max @ 15 A, 25°C - reduces conduction loss and improves system efficiency vs. silicon diodes |
| Reverse Leakage (IR) | 10 mA max @ 45 V, 125°C - limits standby power loss in high-temperature environments |
Pinout & Package
Package: TO-263AB (D2PAK), surface-mount, thermally enhanced with exposed cathode tab. Moisture sensitivity level 1 (J-STD-020), RoHS and halogen-free compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Anode A) | Anode of Diode A | Connects to switching node (e.g., transformer secondary or buck switch node) |
| Pin 2 (Cathode) | Common Cathode | Shared output terminal; electrically tied to exposed metal tab for thermal and electrical path |
| Pin 3 (Anode B) | Anode of Diode B | Enables dual-output or interleaved rectification; independent anode routing required |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring structure | Prevents edge breakdown under repetitive overvoltage transients, extending reliability in unregulated input stages |
| Low VF at high temperature | 0.70 V max @ 15 A, 125°C - maintains efficiency in thermally constrained enclosures |
| Matte tin-plated terminals | Meets J-STD-002 solderability and JESD201 Class 2 whisker resistance - ensures long-term interconnect integrity |
| Dual-die common-cathode configuration | Reduces component count in dual-rail or center-tapped rectifiers versus discrete diodes |
Applications
| Server PSU Output Rectification | Laptop Adapter Secondary Side |
|---|---|
Use Scenario: High-density 48 V–12 V intermediate bus converter in 1U server power supply. IC Role / Device Role / Timing Role: Dual-anode Schottky rectifier delivering 15 A per rail with shared cathode return. Use Value: Low VF minimizes conduction loss at full load; RθJC = 2°C/W allows direct thermal coupling to PCB ground plane. | Use Scenario: 65 W universal-input laptop adapter with synchronous rectification replacement. IC Role / Device Role / Timing Role: Primary output rectifier replacing MOSFET + controller in cost-sensitive designs. Use Value: Eliminates gate drive complexity while maintaining <0.7 V drop at 7.5 A, reducing BOM count and layout area. |
| Industrial DC/DC Module | USB-C PD Fast Charger |
Use Scenario: Isolated 24 V input to ±15 V dual-output module for PLC I/O conditioning. IC Role / Device Role / Timing Role: Common-cathode dual Schottky enabling independent anode routing for split outputs. Use Value: Guard ring withstands 45 V reverse stress during cross-regulation transients; 175°C TJ rating supports sealed enclosure operation. | Use Scenario: 100 W GaN-based USB-C PD charger with multi-tap transformer secondary. IC Role / Device Role / Timing Role: Dual-anode rectifier for independent 5/9/15/20 V output taps sharing common cathode return. Use Value: 150 A IFSM handles startup surges; moisture level 1 rating ensures reflow process compatibility without baking. |
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-15BQ045PBF | Same 15 A / 45 V rating, TO-263AB package, but VF = 0.72 V max @ 15 A, 25°C (higher conduction loss) | Slightly higher thermal resistance (RθJC = 2.5°C/W); less efficient at high ambient | Acceptable where thermal margin exists and cost is primary driver |
| ON Semiconductor MBR1545CT | Identical electrical specs and TO-263AB footprint; same VF and IFSM, but not halogen-free per IEC 61249-2-21 | Not compliant with halogen-free requirements for certain industrial or automotive end-equipment | Preferred only if halogen content is unrestricted and supply chain favors ON Semi |
Compared with VS-15BQ045PBF and MBR1545CT, the MBRS15H45CT offers lower forward voltage and guaranteed halogen-free construction, making it optimal for thermally dense, regulated-compliance applications where efficiency and material specification are jointly critical.
Availability
MBRS15H45CT is available at Aetrix Electronics and suitable for switching mode power supplies, AC/DC adapters, and DC/DC converters requiring stable component supply, high surge tolerance, and RoHS/halogen-free compliance.
Supply support for MBRS15H45CT 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 discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in power rectifiers, TVS devices, and MOSFETs.
The MBRS15H45CT belongs to TSC's high-current Schottky rectifier product line, engineered specifically for high-efficiency, high-reliability secondary-side rectification in compact, thermally demanding power conversion systems.
FAQ
What is the maximum junction temperature rating for the MBRS15H45CT?
The MBRS15H45CT has a maximum junction temperature (TJ) rating of +175°C, verified per absolute maximum ratings table. This allows reliable operation in sealed or high-ambient-temperature environments such as enclosed server PSUs or industrial DC/DC modules. Derating curves confirm usable current down to 125°C case temperature, and the device remains within spec across its full -55°C to +175°C storage range.
Does the MBRS15H45CT support automated pick-and-place assembly?
Yes, the MBRS15H45CT is explicitly designed for automated placement, as confirmed in its official features list. Its TO-263AB (D2PAK) package meets J-STD-020 moisture sensitivity level 1, eliminating bake requirements before reflow. Matte tin-plated leads comply with J-STD-002 solderability standards, and the symmetric footprint supports consistent vision alignment and vacuum nozzle pickup during SMT assembly.
What is the reverse leakage current of the MBRS15H45CT at elevated temperature?
The MBRS15H45CT exhibits ≤10 mA reverse leakage current per diode at rated 45 V reverse voltage and 125°C junction temperature, per electrical specifications. At 25°C, leakage is limited to ≤30 µA. This behavior is critical for minimizing standby power loss in high-temperature adapter or industrial power applications where thermal derating affects system efficiency.
Is the MBRS15H45CT halogen-free and RoHS compliant?
Yes, the MBRS15H45CT is both RoHS compliant and halogen-free in accordance with IEC 61249-2-21. This is explicitly stated in the official features list and confirmed in the mechanical data section. The molding compound and plating materials meet these environmental requirements, making the device suitable for consumer, industrial, and medical-grade products subject to strict material declarations.
How does the guard ring feature improve reliability in the MBRS15H45CT?
The guard ring in the MBRS15H45CT prevents premature edge breakdown under repetitive overvoltage conditions, such as those occurring during transformer reset or load dump events in SMPS circuits. By controlling electric field distribution at the die periphery, it enhances ruggedness against transient reverse stress beyond VRRM, directly improving long-term reliability in unregulated or dynamically loaded power systems.
MBRS15H45CT 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:
- 800 mV @ 15 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 30 µA @ 45 V
- Operating Temperature - Junction:
- -55°C ~ 175°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-263AB (D2PAK)
MBRS15H45CT FAQ
1.How can I place an order for MBRS15H45CT through Aetrix?
Please submit a Request for Quotation (RFQ) for MBRS15H45CT 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 MBRS15H45CT reliable?
The price and inventory of MBRS15H45CT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MBRS15H45CT is usually 5 days.
3.What payment methods are accepted for MBRS15H45CT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MBRS15H45CT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MBRS15H45CT?
MBRS15H45CT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MBRS15H45CT 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 MBRS15H45CT?
For technical support, including MBRS15H45CT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MBRS15H45CT requirements.
6.How does Aetrix verify that MBRS15H45CT is sourced from the original manufacturer or authorized distributors?
All MBRS15H45CT 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 MBRS15H45CT meets industry standards.
7.What is the process for return or replacement of MBRS15H45CT?
All MBRS15H45CT units undergo pre-shipment inspection (PSI). If there is an issue with MBRS15H45CT, 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 MBRS15H45CT part is unused and in its original packaging.
Return procedure for MBRS15H45CT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MBRS15H45CT Tags
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