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Taiwan Semiconductor Corporation MBR745HC0G
- Part No.:
- MBR745HC0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- TO-220-2
- Datasheet:
-
MBR745HC0G.pdf
- Description:
- DIODE SCHOTTKY 50V 7.5A TO220AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,925
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Product details
Overview
MBR745HC0G from Taiwan Semiconductor is a 7.5A, 45V AEC-Q101-qualified Schottky barrier rectifier in TO-220AC package, featuring low forward voltage (0.72V @ 15A, 125°C), high surge current capability (150A), and guard ring overvoltage protection. It serves as the primary output rectifier in automotive-grade DC/DC converters and industrial SMPS where efficiency and thermal robustness are critical.
For engineers reviewing the MBR745HC0G datasheet, MBR745HC0G pinout, MBR745HC0G application, or MBR745HC0G equivalent, key selection criteria include its 45V VRRM, 150A IFSM, junction-to-case thermal resistance of 5°C/W, AEC-Q101 qualification status, and TO-220AC mechanical compatibility with standard heatsink mounting.
Technical Context
This device implements a single-die Schottky structure optimized for low conduction loss in medium-voltage switching power supplies. Its guard ring design enhances ruggedness against transient overvoltage events, while the matte tin-plated leads ensure reliable solderability per J-STD-002.
The MBR745HC0G operates across -55°C to +150°C junction temperature range and delivers stable reverse leakage (<100 µA @ 25°C, <15 mA @ 125°C) at rated 45V reverse voltage, supporting high-efficiency operation in thermally constrained automotive and industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 45 V - Maximum repetitive reverse blocking voltage; defines safe operating limit in DC/DC flyback or buck output stage |
| IF | 7.5 A - Continuous average forward current; determines heatsink sizing under steady-state load |
| IFSM | 150 A - Non-repetitive surge current (8.3 ms half-sine); supports inrush and fault-current handling |
| VF | 0.72 V @ 15A, 125°C - Low conduction loss at elevated temperature; reduces power dissipation in hot environments |
| RθJC | 5 °C/W - Junction-to-case thermal resistance; enables direct thermal coupling to heatsink without interface material derating |
| TJ max | +150 °C - Maximum junction temperature; allows operation in under-hood automotive locations |
| AEC-Q101 | Qualified - Validated for automotive electronic systems per stress test requirements (HTOL, TC, HTRB, etc.) |
Pinout & Package
Package: TO-220AC - Three-terminal, through-hole molded plastic case with isolated tab; meets UL 94V-0 flammability rating and JESD201 Class 2 whisker resistance; mounting torque ≤0.56 N·m.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Input current entry point | Connected to switching node or transformer secondary; carries full load current into device |
| Cathode (Lead 2) | Output current exit point | Connected to output filter capacitor and load; polarity-marked on device body |
| Case / Tab (Lead 3) | Thermal and electrical connection to cathode | Electrically tied to cathode; requires insulating washer if mounted to grounded heatsink |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive power electronics including engine control units and ADAS power rails |
| Guard ring structure | Improves ruggedness against line transients and ESD-induced avalanche failure in unregulated inputs |
| Low VF at high temperature | 0.72 V @ 15A/125°C enables >92% efficiency in 12V-output DC/DC converters at full load and ambient 85°C |
| 150A surge rating | Withstands cold-start inrush and short-circuit recovery without degradation in 24V industrial systems |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for environmentally regulated end equipment |
Applications
| Automotive DC/DC Converters | Industrial SMPS Outputs |
|---|---|
Use Scenario: Step-down conversion from 24V battery rail to 5V/3.3V for infotainment and body control modules. IC Role / Device Role / Timing Role: Primary output rectifier replacing fast recovery diodes to reduce conduction loss and heat generation. Use Value: Enables smaller heatsinks and higher power density due to 0.72V VF at 125°C and AEC-Q101 reliability validation. | Use Scenario: Output rectification in 48V telecom and factory automation power supplies. IC Role / Device Role / Timing Role: High-current freewheeling path in synchronous-buck-derived topologies with discrete gate drive. Use Value: Reduces system power loss by ~1.8W vs. comparable 60V Si diode at 7.5A, improving thermal margin and MTBF. |
| Laptop Adapters | LED Driver Secondary Side |
Use Scenario: Secondary-side rectification in compact 65W–90W AC/DC adapters with tight thermal envelopes. IC Role / Device Role / Timing Role: Uncontrolled rectifier in quasi-resonant flyback output stage. Use Value: Achieves >89% efficiency at full load with no active cooling, enabled by low RθJC = 5°C/W and TO-220AC mechanical stability. | Use Scenario: Constant-current regulation loop rectification in outdoor LED streetlight drivers. IC Role / Device Role / Timing Role: Output rectifier in isolated buck-boost LED driver with 45V string voltage. Use Value: Withstands 150A surge during lightning-induced line spikes while maintaining <15 mA leakage at 125°C ambient. |
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-MBR745CT | TO-220AB package (non-isolated tab); 0.75V VF @ 15A/125°C; no AEC-Q101 qualification | Not suitable for automotive under-hood use; acceptable for industrial/commercial SMPS with grounded heatsink | Select when cost sensitivity outweighs automotive qualification and isolation requirement |
| ON Semiconductor MBR745CT | TO-220AB package; 0.74V VF @ 15A/125°C; AEC-Q101 qualified only in "H" suffix variants (e.g., MBR745CTH) | Requires verification of "H" suffix for automotive use; identical thermal specs but different marking and traceability | Choose only if MBR745HC0G supply chain constraints exist and full AEC-Q101 documentation is confirmed |
Compared with VS-MBR745CT and MBR745CT, the MBR745HC0G uniquely combines AEC-Q101 qualification, isolated TO-220AC tab, and lowest verified VF (0.72V) at 125°C-making it the preferred choice for thermally demanding, safety-critical automotive power stages where cathode-isolated mounting is required.
Availability
MBR745HC0G is available at Aetrix Electronics and suitable for automotive power conversion, industrial SMPS, and LED driver designs requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant sourcing.
Supply support for MBR745HC0G 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 global automotive, industrial, and consumer markets since 1979.
The MBR7xx series targets high-reliability power conversion applications, with the MBR745HC0G specifically engineered for AEC-Q101-compliant 45V Schottky rectification in space-constrained, thermally aggressive environments.
FAQ
What does the 'HC0G' suffix mean in MBR745HC0G?
The 'HC0G' suffix identifies the MBR745HC0G as an AEC-Q101-qualified variant (H), packaged in TO-220AC (C), with green molding compound (G), and zero lead finish (0). This distinguishes it from non-automotive MBR745 versions and confirms compliance with halogen-free and RoHS directives per IEC 61249-2-21.
Is MBR745HC0G pin-compatible with standard TO-220AC rectifiers?
Yes, the MBR745HC0G uses the industry-standard TO-220AC footprint with Anode–Cathode–Case pinout and 2.54 mm lead spacing. Its isolated tab matches mechanical dimensions in JEDEC TO-220AC outlines, enabling drop-in replacement in existing layouts designed for three-terminal Schottky rectifiers.
What is the maximum allowable mounting torque for MBR745HC0G?
The maximum mounting torque for MBR745HC0G is 0.56 N·m, as specified in the mechanical data section. Exceeding this value risks cracking the epoxy body or deforming the leads, potentially compromising hermeticity, thermal performance, or long-term reliability in vibration-prone automotive applications.
Does MBR745HC0G require a thermal pad or insulator when mounted to a heatsink?
Yes, because the case/tab of the MBR745HC0G is electrically connected to the cathode, an insulating washer or thermal pad must be used when mounting to a grounded heatsink. Failure to isolate may cause short circuits in cathode-referenced output stages, especially in multi-rail or floating-ground systems.
How does MBR745HC0G perform at elevated temperatures compared to silicon PN rectifiers?
At 125°C junction temperature, the MBR745HC0G maintains 0.72V forward voltage and <15 mA reverse leakage-significantly lower conduction loss and more predictable leakage than equivalent 45V silicon PN rectifiers, which typically exceed 1.1V VF and 100 mA IR at same conditions, making MBR745HC0G superior for high-temperature efficiency-critical designs.
MBR745HC0G 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:
- 840 mV @ 15 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 100 µA @ 50 V
- Capacitance @ Vr, F:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220AC
- Operating Temperature - Junction:
- -55°C ~ 150°C
MBR745HC0G FAQ
1.How can I place an order for MBR745HC0G through Aetrix?
Please submit a Request for Quotation (RFQ) for MBR745HC0G 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 MBR745HC0G reliable?
The price and inventory of MBR745HC0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MBR745HC0G is usually 5 days.
3.What payment methods are accepted for MBR745HC0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MBR745HC0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MBR745HC0G?
MBR745HC0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MBR745HC0G 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 MBR745HC0G?
For technical support, including MBR745HC0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MBR745HC0G requirements.
6.How does Aetrix verify that MBR745HC0G is sourced from the original manufacturer or authorized distributors?
All MBR745HC0G 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 MBR745HC0G meets industry standards.
7.What is the process for return or replacement of MBR745HC0G?
All MBR745HC0G units undergo pre-shipment inspection (PSI). If there is an issue with MBR745HC0G, 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 MBR745HC0G part is unused and in its original packaging.
Return procedure for MBR745HC0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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