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Taiwan Semiconductor Corporation MBR4050PTH
- Part No.:
- MBR4050PTH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Diode Arrays
- Package:
- TO-247-3
- Datasheet:
-
MBR4050PTH.pdf
- Description:
- DIODE ARR SCHOTT 50V 40A TO247AD
- Quantity:
- Payment:
- Shipping:
Inventory:7,046
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Product details
Overview
MBR4050PTH from Taiwan Semiconductor is a 40A, 50V AEC-Q101-qualified Schottky barrier rectifier in TO-247AD package, featuring 0.77V max forward voltage at 20A/25°C, 330A surge current capability, and guard ring overvoltage protection. It serves as a high-efficiency output rectifier in automotive-grade DC-DC converters and industrial SMPS.
For engineers reviewing the MBR4050PTH datasheet, MBR4050PTH pinout, MBR4050PTH application, or MBR4050PTH equivalent, key selection criteria include its 50V VRRM, dual-die thermal performance (RθJC = 1.2°C/W), AEC-Q101 qualification, and 20mA reverse leakage at 125°C - critical for under-hood power conversion reliability.
Technical Context
This device implements a dual-die Schottky structure in a single TO-247AD case, enabling parallel conduction paths with shared thermal mass. Its guard ring design suppresses edge breakdown, supporting stable operation up to 150°C junction temperature.
The MBR4050PTH operates with low conduction loss (VF ≤ 0.77V @ 20A/25°C) and high dV/dt immunity (10,000 V/μs), making it suitable for fast-switching topologies where reverse recovery is eliminated and EMI is minimized.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 50 V - Maximum repetitive reverse voltage; defines safe blocking range in 48V automotive and 48V server power rails. |
| IF | 40 A - Continuous forward current rating; supports high-current outputs without forced air cooling in compact designs. |
| IFSM | 330 A - Non-repetitive surge current (8.3ms half-sine); handles inrush and fault transients in DC-DC stages. |
| VF (max) | 0.77 V @ 20A, 25°C - Low conduction loss directly reduces power dissipation and improves system efficiency above 92%. |
| RθJC | 1.2 °C/W - Junction-to-case thermal resistance; enables predictable heatsink sizing for 150°C max TJ operation. |
| IR (max) | 20 mA @ 125°C - Reverse leakage current; low enough to avoid thermal runaway in high-temp environments like engine compartments. |
| AEC-Q101 | Qualified - Validated for automotive component stress testing (HTOL, TC, HTRB, etc.), required for under-hood deployment. |
Pinout & Package
Package: TO-247AD (TO-3P), 3-terminal through-hole case with isolated mounting tab. Matte tin-plated leads, UL 94V-0 molding compound, polarity marked on device body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 | Main anode connection for first Schottky die | Carries half of total forward current; electrically independent but thermally coupled to second anode. |
| Cathode | Common cathode for both dies | Single low-inductance return path; optimized for high-frequency switching node routing. |
| Anode 2 | Main anode connection for second Schottky die | Enables dual-die current sharing; improves thermal distribution vs. single-die 40A devices. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive temperature cycling, humidity, and lifetime reliability - mandatory for engine control and ADAS power supplies. |
| Guard ring overvoltage protection | Prevents premature edge breakdown at rated VRRM, ensuring stable reverse blocking even with PCB trace parasitics. |
| Dual-die configuration | Two parallel Schottky junctions share thermal load and reduce effective RDS(on)-equivalent conduction loss. |
| UL Recognized (E-326243) | Meets safety standards for end-equipment certification in industrial and medical-adjacent applications. |
Applications
| Automotive DC-DC Converters | Industrial SMPS Outputs |
|---|---|
Use Scenario: 12V-to-48V bidirectional converter in 48V mild-hybrid vehicles. IC Role / Device Role / Timing Role: Primary output rectifier handling continuous 40A load with transient surges up to 330A. Use Value: AEC-Q101 qualification and 150°C TJ rating ensure uninterrupted operation in under-hood ambient temperatures exceeding 105°C. | Use Scenario: High-current secondary-side rectification in telecom rectifiers and server VRMs. IC Role / Device Role / Timing Role: Low-VF Schottky rectifier replacing fast recovery diodes to improve full-load efficiency by ≥1.8%. Use Value: 0.77V VF at 20A/25°C directly lowers conduction loss versus silicon alternatives, reducing heatsink size and cost. |
| LED Driver Power Stages | Motor Drive Power Supplies |
Use Scenario: Constant-current LED driver for commercial lighting with 48V input bus. IC Role / Device Role / Timing Role: Output freewheeling diode in buck regulator stage operating at 200kHz–500kHz. Use Value: Zero reverse recovery eliminates switching loss and associated EMI, simplifying EMI filter design. | Use Scenario: Auxiliary power supply for gate drivers in HVAC inverter modules. IC Role / Device Role / Timing Role: Input rectifier feeding isolated flyback controller powering IGBT gate bias rails. Use Value: 10,000 V/μs dV/dt rating prevents false turn-on during high dv/dt gate drive 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-MBR4050CT | Same 40A/50V rating, TO-247AC package (non-isolated tab), no AEC-Q101 qualification. | Not qualified for automotive use; suitable for industrial/commercial SMPS only. | Select when AEC-Q101 is not required and lower cost is prioritized over automotive compliance. |
| ON Semiconductor MBR4050CT | 40A/50V, TO-247AC, AEC-Q101 available only in MBR4050CTH variant (different marking), no published dual-die thermal data. | Limited thermal documentation; less verified for sustained 40A operation at 125°C ambient. | Prefer when existing BOM uses ON Semi footprint and qualification path aligns with MBR4050CTH sourcing. |
Compared with VS-MBR4050CT and MBR4050CT, the MBR4050PTH provides verified AEC-Q101 compliance, dual-die thermal coupling (RθJC = 1.2°C/W), and guard ring protection - delivering higher confidence in automotive and high-reliability industrial deployments.
Availability
MBR4050PTH is available at Aetrix Electronics and suitable for automotive power conversion, industrial SMPS, LED driver designs, and motor control auxiliary supplies requiring stable component supply across extended temperature and lifecycle requirements.
Supply support for MBR4050PTH 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 Company (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving global automotive, industrial, and consumer markets since 1979.
The MBR4050PTH belongs to TSC's AEC-Q101-qualified Schottky rectifier product line, engineered specifically for high-current, high-temperature power conversion in automotive and ruggedized industrial systems.
FAQ
What is the maximum junction temperature rating for the MBR4050PTH?
The MBR4050PTH has a maximum junction temperature (TJ) rating of +150°C, validated per AEC-Q101 stress test conditions. This allows reliable operation in under-hood automotive environments and high-ambient industrial enclosures when paired with appropriate heatsinking based on its 1.2°C/W RθJC.
Does the MBR4050PTH have a common cathode or common anode configuration?
The MBR4050PTH uses a common-cathode dual-anode configuration: two independent anode terminals (Anode 1 and Anode 2) share a single cathode terminal. This layout supports current sharing between parallel dies while maintaining a low-inductance return path essential for high-frequency switching.
Is the MBR4050PTH pin-compatible with standard TO-247AC rectifiers?
No - the MBR4050PTH uses the TO-247AD (TO-3P) package with an electrically isolated mounting tab, whereas TO-247AC has a conductive tab. PCB footprints and thermal pad isolation must be redesigned; direct replacement requires mechanical and electrical verification.
What is the reverse leakage current specification for the MBR4050PTH at elevated temperature?
At 125°C junction temperature and rated 50V reverse voltage, the MBR4050PTH specifies a maximum reverse leakage current (IR) of 20 mA per diode. This value is confirmed in the manufacturer's electrical specifications table and critical for thermal stability analysis in high-temp designs.
How does the guard ring feature improve reliability in the MBR4050PTH?
The guard ring in the MBR4050PTH mitigates edge-related avalanche breakdown by controlling electric field distribution at the silicon periphery. This ensures stable 50V blocking performance under voltage transients and PCB layout-induced field enhancements, extending operational life in noisy automotive and industrial power systems.
MBR4050PTH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- TO-247-3
- Packaging:
- Tube
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 50 V
- Current - Average Rectified (Io) (per Diode):
- 40A
- Voltage - Forward (Vf) (Max) @ If:
- 770 mV @ 20 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 1 mA @ 50 V
- Operating Temperature - Junction:
- -55°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-247AD (TO-3P)
MBR4050PTH FAQ
1.How can I place an order for MBR4050PTH through Aetrix?
Please submit a Request for Quotation (RFQ) for MBR4050PTH 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 MBR4050PTH reliable?
The price and inventory of MBR4050PTH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MBR4050PTH is usually 5 days.
3.What payment methods are accepted for MBR4050PTH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MBR4050PTH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MBR4050PTH?
MBR4050PTH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MBR4050PTH 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 MBR4050PTH?
For technical support, including MBR4050PTH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MBR4050PTH requirements.
6.How does Aetrix verify that MBR4050PTH is sourced from the original manufacturer or authorized distributors?
All MBR4050PTH 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 MBR4050PTH meets industry standards.
7.What is the process for return or replacement of MBR4050PTH?
All MBR4050PTH units undergo pre-shipment inspection (PSI). If there is an issue with MBR4050PTH, 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 MBR4050PTH part is unused and in its original packaging.
Return procedure for MBR4050PTH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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