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Taiwan Semiconductor Corporation MBR1645 C0G
- Part No.:
- MBR1645 C0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- TO-220-2
- Datasheet:
-
MBR1645 C0G.pdf
- Description:
- DIODE SCHOTTKY 45V 16A TO220AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,972
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Product details
Overview
MBR1645 C0G from Taiwan Semiconductor is a 16A, 45V Schottky barrier rectifier in TO-220AC package, featuring low forward voltage (0.63 V at 16 A, 25°C), high surge current capability (150 A), and AEC-Q101 qualification option. It serves as primary output rectifier in high-efficiency DC/DC converters and industrial SMPS.
For engineers reviewing the MBR1645 C0G datasheet, MBR1645 C0G pinout, MBR1645 C0G application, or MBR1645 C0G equivalent, key selection criteria include repetitive peak reverse voltage (45 V), junction-to-case thermal resistance (3 °C/W), TJ max rating (150 °C), and reverse leakage (500 µA at 25°C, 15 mA at 125°C).
Technical Context
This single-die Schottky rectifier uses platinum-silicide or similar low-barrier metallization to achieve fast switching (dV/dt = 10,000 V/µs) and zero recovery charge, eliminating switching losses in high-frequency power stages. Its guard ring structure enhances ruggedness against transient overvoltage events.
Thermally optimized for bolt-down mounting, the TO-220AC case delivers 3 °C/W junction-to-case resistance, enabling sustained 16 A conduction at ≤125°C junction temperature with adequate heatsinking. Polarity is marked on the device body per standard cathode stripe convention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 45 V - Maximum repetitive reverse blocking voltage; defines safe operating range in 36–48 V output rails |
| IF | 16 A - Continuous average forward current; supports ≥200 W output at 12 V with margin |
| VF @ 16 A, 25°C | 0.63 V - Low conduction loss; contributes <10 W dissipation at full load |
| IFSM | 150 A - Non-repetitive surge rating; withstands inrush and fault transients without failure |
| RθJC | 3 °C/W - Enables thermal design with standard heatsinks; ΔT = 48°C rise at 16 A nominal |
| TJ max | 150 °C - Maximum junction temperature; allows operation in industrial ambient up to 85°C with proper derating |
| IR @ 45 V, 125°C | 15 mA - Reverse leakage at elevated temperature; impacts standby loss in offline converters |
Pinout & Package
Package: TO-220AC - Three-terminal, through-hole, isolated tab package with matte tin-plated leads compliant with J-STD-002 solderability; mounting torque ≤0.56 N·m; UL 94V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input current terminal | Connected to transformer secondary or switch node; carries full load current into rectifier |
| Cathode | Output current terminal | Delivers filtered DC to output capacitor; polarity-marked on device body |
| Case / Tab | Thermal path & mechanical ground | Electrically isolated but thermally conductive; must be mounted to heatsink with insulating washer if referenced to non-ground potential |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring overvoltage protection | Enhances avalanche ruggedness and prevents premature edge breakdown under transient stress |
| AEC-Q101 qualified version available | Validated for automotive under-hood applications including engine control and ADAS power supplies |
| RoHS and halogen-free compliance | Meets IEC 61249-2-21; suitable for consumer, industrial, and green-certified end equipment |
| High IFSM/IF ratio (9.4:1) | Supports robust startup and short-circuit tolerance without derating or external fusing |
Applications
| Server PSU Output Rectification | Industrial DC/DC Converter |
|---|---|
Use Scenario: Primary 12 V output rectification in 80 PLUS Titanium server power supplies operating at 300–500 kHz. IC Role / Device Role / Timing Role: Schottky rectifier replacing fast recovery diodes to reduce conduction loss and improve efficiency above 95%. Use Value: 0.63 V forward drop at 16 A lowers power loss by ~1.5 W vs. silicon FRD, directly improving thermal margin and reliability. | Use Scenario: 24 V input to 5 V/10 A isolated DC/DC module for PLC I/O modules in factory automation. IC Role / Device Role / Timing Role: Secondary-side synchronous rectifier alternative where gate drive complexity is avoided. Use Value: Zero reverse recovery eliminates switching spikes and EMI, simplifying filter design and reducing snubber losses. |
| Automotive Body Control Module | Laptop Adapter Secondary Side |
Use Scenario: 12 V rail rectification in AEC-Q101-compliant BCM power supply handling cold-crank and load-dump transients. IC Role / Device Role / Timing Role: High-surge-capable output rectifier with guard ring protection against ISO 7637-2 pulse 5a/b. Use Value: 150 A IFSM and 45 V VRRM provide headroom for 30 V transients while maintaining compact TO-220AC footprint. | Use Scenario: 19 V output rectification in compact 65 W laptop AC/DC adapters with high-density layout constraints. IC Role / Device Role / Timing Role: Low-VF Schottky enabling high efficiency (>90%) at light-load and full-load conditions. Use Value: 0.63 V VF reduces conduction loss by ~25% versus MBR1650, lowering thermal stress in sealed adapter enclosures. |
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-MBR1645CT | TO-220AB dual common-cathode configuration; 0.62 V VF at 16 A; same VRRM, IFSM | Requires dual-output or parallel-path designs; not single-anode/cathode drop-in | Select when dual-channel redundancy or interleaved topology is used |
| ON Semiconductor MBR1645G | Identical electrical specs and TO-220AC package; AEC-Q101 qualified; same 0.63 V VF, 45 V VRRM | Drop-in replacement with identical pinout, thermal profile, and marking orientation | Preferred for automotive programs requiring second-source qualification |
Compared with MBR1645 C0G, VS-MBR1645CT offers dual-diode integration but requires PCB redesign, whereas MBR1645G provides true pin-compatible second sourcing with validated AEC-Q101 compliance-critical for automotive BOM resilience.
Availability
MBR1645 C0G is available at Aetrix Electronics and suitable for server power supplies, industrial DC/DC converters, automotive body control modules, and laptop adapters requiring stable component supply and long-term manufacturability.
Supply support for MBR1645 C0G 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 MBR16xx series targets high-efficiency, high-reliability power conversion systems where low forward voltage, rugged surge handling, and thermal performance are critical-especially in space-constrained, thermally demanding applications.
FAQ
What is the maximum junction temperature rating for MBR1645 C0G?
The MBR1645 C0G has a maximum junction temperature (TJ max) of +150°C, allowing continuous operation in industrial environments up to 85°C ambient when properly heatsinked. This rating is confirmed in the Absolute Maximum Ratings table of the official TSC datasheet (Version K2103), and applies across all variants in the MBR1635–MBR16150 family including MBR1645 C0G.
Is MBR1645 C0G AEC-Q101 qualified?
MBR1645 C0G itself is not explicitly marked as AEC-Q101 qualified in the provided documentation; however, the ordering code "MBR1645H" denotes the AEC-Q101 qualified variant. The base MBR1645 C0G shares identical die and construction but lacks the automotive-specific test certification. For automotive use, specify MBR1645H to ensure compliance.
What is the forward voltage of MBR1645 C0G at 16 A and 125°C?
The forward voltage of MBR1645 C0G is 0.57 V at 16 A and 125°C, as specified in the Electrical Specifications table under "Forward voltage(1)" for MBR1635/MBR1645. This lower VF at elevated temperature reflects improved conduction efficiency under thermal stress, supporting stable operation in high-ambient applications.
Does MBR1645 C0G have a guard ring structure?
Yes, MBR1645 C0G incorporates a guard ring structure for overvoltage protection, as stated in the FEATURES section of the TSC datasheet. This design feature improves edge termination robustness and increases resistance to avalanche-induced failure during transient voltage events such as load dump or inductive switching.
What is the thermal resistance from junction to case for MBR1645 C0G?
The junction-to-case thermal resistance (RθJC) of MBR1645 C0G is 3 °C/W, per the THERMAL PERFORMANCE table. This value enables accurate thermal modeling when mounted to a heatsink using standard hardware, and is consistent across all MBR16xx variants in TO-220AC package, including MBR1645 C0G.
MBR1645 C0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- TO-220-2
- Packaging:
- Tube
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 45 V
- Current - Average Rectified (Io):
- 16A
- Voltage - Forward (Vf) (Max) @ If:
- 630 mV @ 16 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 500 µA @ 45 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220AC
- Operating Temperature - Junction:
- -55°C ~ 150°C
MBR1645 C0G FAQ
1.How can I place an order for MBR1645 C0G through Aetrix?
Please submit a Request for Quotation (RFQ) for MBR1645 C0G 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 MBR1645 C0G reliable?
The price and inventory of MBR1645 C0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MBR1645 C0G is usually 5 days.
3.What payment methods are accepted for MBR1645 C0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MBR1645 C0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MBR1645 C0G?
MBR1645 C0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MBR1645 C0G 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 MBR1645 C0G?
For technical support, including MBR1645 C0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MBR1645 C0G requirements.
6.How does Aetrix verify that MBR1645 C0G is sourced from the original manufacturer or authorized distributors?
All MBR1645 C0G 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 MBR1645 C0G meets industry standards.
7.What is the process for return or replacement of MBR1645 C0G?
All MBR1645 C0G units undergo pre-shipment inspection (PSI). If there is an issue with MBR1645 C0G, 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 MBR1645 C0G part is unused and in its original packaging.
Return procedure for MBR1645 C0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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