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Taiwan Semiconductor Corporation MBR750
- Part No.:
- MBR750
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- TO-220-2
- Datasheet:
-
MBR750.pdf
- Description:
- 7.5A, 50V, PLANAR SCHOTTKY
- Quantity:
- Payment:
- Shipping:
Inventory:3,727
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Product details
Overview
MBR750 from Taiwan Semiconductor is a 7.5A, 50V Schottky barrier rectifier in TO-220AC package, featuring low forward voltage (0.75 V at 7.5 A, 25°C), high surge current capability (150 A), and junction temperature rating up to 150°C. It serves as a primary output rectifier in high-efficiency DC-DC converters and SMPS designs where low conduction loss and thermal robustness are critical.
For engineers reviewing the MBR750 datasheet, MBR750 pinout, MBR750 application, or MBR750 equivalent, key selection criteria include its 50 V repetitive peak reverse voltage, 10 mA reverse leakage at 125°C, 5 °C/W junction-to-case thermal resistance, and AEC-Q101 qualification availability for automotive-grade variants.
Technical Context
The MBR750 operates as a single-die, unidirectional Schottky rectifier with guard ring structure for overvoltage protection. Its low VF and fast switching enable high-efficiency power conversion without reverse recovery charge, making it suitable for high-frequency switching topologies.
Thermally, it delivers 15 °C/W junction-to-ambient resistance under standard PCB mounting, and its TO-220AC case supports direct heatsink attachment via 0.56 N·m maximum torque. Polarity is marked on the device body, and terminals are matte tin-plated per J-STD-002.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IF (Continuous) | 7.5 A - Sustains full rated DC output current without derating at 25°C ambient |
| VRRM | 50 V - Maximum repetitive reverse blocking voltage; defines safe operating margin in 36–48 V output rails |
| VF @ 7.5A, 25°C | 0.75 V - Directly determines conduction loss (5.625 W at full load) and thermal design baseline |
| IFSM (Surge) | 150 A - Withstands short-duration inrush or fault currents typical in AC/DC front-end or hot-swap circuits |
| TJ max | 150 °C - Enables operation in sealed enclosures or high-ambient industrial environments |
| RθJC | 5 °C/W - Quantifies thermal path efficiency from die to case; enables accurate heatsink sizing when mounted to metal surface |
| IR @ 50V, 125°C | 10 mA - Reverse leakage sets minimum no-load power loss and impacts standby efficiency compliance |
Pinout & Package
Package: TO-220AC - 3-terminal, through-hole, single-die rectifier with isolated tab (cathode-connected tab), matte tin-plated leads, UL 94V-0 molding compound, and polarity marking on device body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Input current entry point | Connected to transformer secondary or switch node; must withstand full surge current and thermal cycling |
| Cathode (Lead 2) | Output current exit point | Electrically tied to tab; requires insulated mounting if system ground is not cathode-referenced |
| Tab (Cathode) | High-current cathode terminal | Primary thermal path; must be mechanically secured with ≤0.56 N·m torque and electrically isolated unless used as heatsink return |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring overvoltage protection | Prevents premature avalanche breakdown at edge regions, improving reliability under transient voltage stress |
| Low VF at high temperature | 0.65 V at 7.5 A and 125°C - maintains efficiency during thermal overload conditions |
| AEC-Q101 qualification option | Available as MBR750H - validated for automotive under-hood applications including engine control and lighting modules |
| Halogen-free construction | Complies with IEC 61249-2-21 - meets environmental requirements for RoHS-compliant industrial and consumer end equipment |
| JESD 201 Class 2 whisker resistance | Ensures long-term solder joint integrity in high-vibration or thermally cycled deployments |
Applications
| Server Power Supply | Automotive LED Driver |
|---|---|
Use Scenario: Secondary-side synchronous rectification in 48 V input, 12 V output server PSUs operating at 200–500 kHz. IC Role / Device Role / Timing Role: Primary output rectifier replacing conventional PN diodes to reduce conduction loss and improve efficiency above 90%. Use Value: 0.75 V VF at 7.5 A cuts rectifier loss by ~40% vs. comparable fast recovery diodes, directly lowering thermal load on output filter and heatsink. | Use Scenario: High-brightness LED string rectification in automotive daytime running lights (DRL) with 12 V battery input and PWM dimming. IC Role / Device Role / Timing Role: Input-side AC/DC rectifier in compact flyback-derived LED driver, handling cold-crank surges up to 150 A. Use Value: 150 A IFSM and AEC-Q101-rated variant (MBR750H) ensure robustness against load dump transients and extended lifetime in under-hood environments. |
| Industrial DC-DC Converter | USB-C PD Adapter |
Use Scenario: Isolated 24 V to 5 V/3.3 V DC-DC module for PLC I/O modules requiring high MTBF and wide temperature operation. IC Role / Device Role / Timing Role: Output rectifier in forward or active-clamp forward topology, operating continuously at 7.5 A with 60°C ambient. Use Value: 150°C TJ max and 5 °C/W RθJC allow stable operation without forced air, reducing system BOM cost and noise. | Use Scenario: Compact 65 W USB-C PD adapter using quasi-resonant flyback with synchronous rectification. IC Role / Device Role / Timing Role: Secondary-side rectifier in high-density layout where low VF and minimal reverse recovery minimize EMI and improve light-load efficiency. Use Value: Zero Qrr and 0.75 V VF enable >94% efficiency at 25% load, meeting DOE Level VI and CoC Tier 2 requirements without complex gate drive circuitry. |
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-75CTQ050 | Same 7.5 A / 50 V rating; VF = 0.67 V @ 7.5 A, 25°C; TO-220AB package (non-isolated tab) | Non-isolated tab requires insulating hardware; slightly lower VF improves efficiency but increases thermal coupling risk | Select when lower conduction loss is prioritized and mechanical isolation can be managed via shoulder washers or mica pads |
| ON Semiconductor MBR750G | Identical electrical specs and TO-220AC package; AEC-Q101 qualified as standard (no "H" suffix required) | Automotive qualification built-in; tighter IR distribution (max 5 mA @ 125°C) and enhanced process control | Prefer for new automotive designs where qualification documentation and supply chain traceability are mandatory |
Compared with MBR750, VS-75CTQ050 offers marginally better efficiency but demands additional isolation measures, while MBR750G provides drop-in automotive qualification and tighter leakage control-making it preferable for safety-critical or production-sensitive programs.
Availability
MBR750 is available at Aetrix Electronics and suitable for switching mode power supplies, DC-DC converters, and adapters requiring stable component supply across industrial, computing, and automotive-tier procurement cycles.
Supply support for MBR750 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 for industrial and automotive markets.
The MBR7xx series was designed specifically for high-efficiency, high-reliability output rectification in compact, thermally constrained power supplies-emphasizing low VF, robust surge handling, and qualification-ready variants.
FAQ
What is the maximum junction temperature rating for MBR750?
The MBR750 has a maximum junction temperature (TJ max) of 150°C, verified per absolute maximum ratings in the official TSC datasheet. This allows continuous operation in high-ambient environments such as enclosed industrial power supplies or under-hood automotive modules when properly heatsinked. Thermal design must respect the 5 °C/W junction-to-case resistance to avoid exceeding this limit.
Is MBR750 pin-compatible with other parts in the MBR7xx family?
Yes, all MBR7xx parts-including MBR750-share identical TO-220AC package dimensions, pinout (anode, cathode, cathode-tab), and mechanical mounting specifications. Voltage variants (e.g., MBR735, MBR7100) differ only in VRRM and related parameters; no PCB redesign is needed when substituting within the same package code.
Does MBR750 have AEC-Q101 qualification?
The base MBR750 is not AEC-Q101 qualified; however, the MBR750H variant-explicitly designated in TSC's ordering information-is fully AEC-Q101 qualified for automotive applications. Engineers requiring automotive compliance must specify MBR750H, which undergoes additional stress testing and traceability controls beyond the standard part.
What is the forward voltage of MBR750 at elevated temperature?
Per TSC's electrical specifications, the MBR750 exhibits a typical forward voltage of 0.65 V at 7.5 A and 125°C. This value is confirmed in the "ELECTRICAL SPECIFICATIONS" table (Version K2103, Page 2) and reflects reduced voltage drop due to Schottky behavior at higher temperatures-critical for thermal stability in sustained high-load operation.
How does the guard ring feature benefit MBR750 in real-world use?
The guard ring in MBR750 mitigates edge-related avalanche breakdown under transient overvoltage conditions-such as line surges or inductive kickback-by distributing electric field stress away from the junction periphery. This extends device lifetime in unregulated or poorly filtered input stages and improves consistency in batch reliability testing, especially in industrial SMPS with variable input quality.
MBR750 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- TO-220-2
- Packaging:
- Tube
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 50 V
- Current - Average Rectified (Io):
- 7.5A
- Voltage - Forward (Vf) (Max) @ If:
- 750 mV @ 7.5 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 100 µA @ 50 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220AC
- Operating Temperature - Junction:
- -55°C ~ 150°C
MBR750 FAQ
1.How can I place an order for MBR750 through Aetrix?
Please submit a Request for Quotation (RFQ) for MBR750 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 MBR750 reliable?
The price and inventory of MBR750 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MBR750 is usually 5 days.
3.What payment methods are accepted for MBR750?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MBR750 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MBR750?
MBR750 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MBR750 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 MBR750?
For technical support, including MBR750 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MBR750 requirements.
6.How does Aetrix verify that MBR750 is sourced from the original manufacturer or authorized distributors?
All MBR750 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 MBR750 meets industry standards.
7.What is the process for return or replacement of MBR750?
All MBR750 units undergo pre-shipment inspection (PSI). If there is an issue with MBR750, 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 MBR750 part is unused and in its original packaging.
Return procedure for MBR750:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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