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Taiwan Semiconductor Corporation MBR1645HC0G
- Part No.:
- MBR1645HC0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- TO-220-2
- Datasheet:
-
MBR1645HC0G.pdf
- Description:
- DIODE SCHOTTKY 45V 16A TO220AC
- Quantity:
- Payment:
- Shipping:
Inventory:9,799
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Product details
Overview
MBR1645HC0G from Taiwan Semiconductor is a 16A, 45V AEC-Q101-qualified Schottky barrier rectifier in TO-220AC package, featuring 0.63V forward voltage at 16A/25°C, 150A surge current capability, and guard ring overvoltage protection-used in automotive-grade DC-DC converters and industrial SMPS.
For engineers reviewing the MBR1645HC0G datasheet, MBR1645HC0G pinout, MBR1645HC0G application, or MBR1645HC0G equivalent, key selection criteria include its AEC-Q101 qualification, low VF at high IF, TJ max of 150°C, RθJC of 3°C/W, and TO-220AC thermal mounting compatibility.
Technical Context
This single-die Schottky rectifier operates with unidirectional conduction and zero recovery time, enabling high-frequency switching efficiency in hard-switched topologies. Its guard ring structure enhances ruggedness against transient overvoltage events without external snubbers.
The device sustains 150A non-repetitive surge (8.3ms half-sine) and maintains <500µA reverse leakage at 45V/25°C, supporting stable operation in thermally constrained power stages where junction temperature reaches up to 150°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 45 V - Maximum repetitive reverse blocking voltage; defines safe operating limit in flyback/clamp circuits |
| IF | 16 A - Continuous average forward current; sets minimum heatsink sizing for sustained load conditions |
| VF @ 16A, 25°C | 0.63 V - Low conduction loss enabling >92% efficiency in 12V-output SMPS at full load |
| IFSM | 150 A - Peak surge rating; supports cold-start inrush and short-circuit fault handling |
| RθJC | 3 °C/W - Thermal resistance from junction to case; enables direct bolt-down heatsinking without thermal interface material |
| TJ max | 150 °C - Maximum junction temperature; allows operation in under-hood automotive environments |
| IR @ 45V, 25°C | 500 µA - Low reverse leakage; minimizes standby power loss in always-on systems |
Pinout & Package
Package: TO-220AC - Insulated case with single mounting hole, matte tin-plated leads compliant with J-STD-002 solderability, UL 94V-0 molding compound, and polarity marked on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input current entry point | Connected to input rail or transformer secondary; must handle full 16A continuous and 150A surge |
| Cathode | Output current exit point | Connected to output filter capacitor and load; low-inductance layout critical for EMI control |
| Case / Tab | Electrically connected to cathode | Provides primary thermal path to heatsink; electrically isolated mounting required if cathode is not chassis-ground referenced |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive powertrain and body electronics per stress test requirements including HTOL, TC, and HTRB |
| Guard ring overvoltage protection | Prevents premature avalanche breakdown during line transients, eliminating need for external TVS in many 12V/24V systems |
| Low VF at high IF | 0.63V @ 16A/25°C reduces conduction loss by ~25% vs. comparable 45V Si diodes, lowering thermal design burden |
| Halogen-free construction | Complies with IEC 61249-2-21; supports RoHS-compliant manufacturing and end-of-life recycling |
| JESD 201 Class 2 whisker resistance | Ensures long-term solder joint reliability in vibration-prone automotive and industrial deployments |
Applications
| Automotive DC-DC Converter | Industrial SMPS Secondary Side |
|---|---|
Use Scenario: 12V-to-5V/3.3V buck converter in ADAS ECU requiring AEC-Q101 compliance and high efficiency at 10–16A load. IC Role / Device Role / Timing Role: Output rectifier replacing fast recovery diode to reduce losses and thermal stress. Use Value: 0.63V VF cuts conduction loss by 1.8W vs. Si alternative, enabling smaller heatsink and higher power density. | Use Scenario: 48V-input telecom SMPS delivering 24V/15A output with strict thermal limits in enclosed chassis. IC Role / Device Role / Timing Role: Synchronous rectifier replacement where gate drive complexity is undesirable. Use Value: 150°C TJ rating and 3°C/W RθJC allow direct mounting to chassis without forced air, simplifying thermal management. |
| Laptop Adapter Secondary Rectification | Server PSU Hold-Up Circuit |
Use Scenario: 19V-output AC-DC adapter with 65W rating and energy efficiency certification (e.g., DoE Level VI). IC Role / Device Role / Timing Role: Primary output rectifier in quasi-resonant flyback topology. Use Value: Low IR (500µA @ 45V/25°C) minimizes no-load power draw, improving standby efficiency. | Use Scenario: 12V hold-up circuit maintaining system state during brief AC dropout in enterprise servers. IC Role / Device Role / Timing Role: Freewheeling path for bulk capacitor discharge into backup regulator. Use Value: 150A IFSM withstands capacitor inrush during hot-swap events without degradation. |
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; VF = 0.67V @ 16A/25°C; no AEC-Q101 qualification | Requires redesign for single-diode layout; unsuitable for automotive qualification-critical designs | Select only for cost-sensitive industrial adapters without automotive compliance needs |
| ON Semiconductor MBR1645CT | TO-220AB dual configuration; VF = 0.65V @ 16A/25°C; AEC-Q101 available only in M1 prefix variant (MBR1645CT-M1) | Dual-diode footprint incompatible with MBR1645HC0G's single-anode/cathode layout | Choose MBR1645HC0G when single-diode TO-220AC mechanical fit and guaranteed AEC-Q101 are mandatory |
Compared with VS-MBR1645CT and MBR1645CT, MBR1645HC0G provides verified AEC-Q101 qualification in a single-diode TO-220AC package with lowest VF (0.63V), making it the preferred choice for space-constrained, thermally demanding automotive and industrial rectification where layout and qualification cannot be compromised.
Availability
MBR1645HC0G is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial SMPS, and laptop adapters requiring stable component supply, AEC-Q101 compliance, and consistent thermal performance across production volumes.
Supply support for MBR1645HC0G 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 was developed to deliver high-current Schottky rectifiers with AEC-Q101 validation, low VF, and robust thermal performance for next-generation power conversion in harsh-environment applications.
FAQ
What does the 'H' suffix in MBR1645HC0G indicate?
The 'H' in MBR1645HC0G denotes AEC-Q101 qualification, confirming that the device has passed stress tests including high-temperature operating life, temperature cycling, and highly accelerated stress testing per automotive reliability standards. This makes MBR1645HC0G suitable for under-hood and safety-critical vehicle subsystems where standard industrial-grade parts are insufficient.
Is MBR1645HC0G pin-compatible with other TO-220AC Schottky rectifiers?
Yes, MBR1645HC0G uses the standard TO-220AC outline with anode, cathode, and electrically connected tab terminals in identical physical positions. Its pinout matches industry-standard TO-220AC rectifiers such as STTH1604 and SB1645, enabling drop-in replacement where voltage and current ratings align-though AEC-Q101 validation remains unique to MBR1645HC0G.
What is the maximum allowable mounting torque for MBR1645HC0G?
The maximum mounting torque for MBR1645HC0G is 0.56 N·m, as specified in the mechanical data section of the official TSC datasheet. Exceeding this value risks cracking the epoxy mold compound or damaging internal wire bonds, potentially causing premature failure under thermal cycling or vibration.
Does MBR1645HC0G require a thermal pad or insulator when mounted to a heatsink?
MBR1645HC0G's TO-220AC case is electrically connected to the cathode terminal, so electrical isolation from the heatsink is required unless the cathode node is chassis-ground referenced. A mica or silicone thermal pad rated for ≥150°C and ≥2.5kV isolation is recommended to maintain both thermal performance (RθJC = 3°C/W) and safety compliance.
How does the guard ring in MBR1645HC0G improve system reliability?
The integrated guard ring in MBR1645HC0G controls electric field distribution at the die edge, preventing localized avalanche breakdown during voltage transients. This eliminates the need for external TVS diodes in many 12V/24V automotive circuits, reducing BOM count and improving long-term reliability under load dump or jump-start conditions.
MBR1645HC0G 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:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220AC
- Operating Temperature - Junction:
- -55°C ~ 150°C
MBR1645HC0G FAQ
1.How can I place an order for MBR1645HC0G through Aetrix?
Please submit a Request for Quotation (RFQ) for MBR1645HC0G 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 MBR1645HC0G reliable?
The price and inventory of MBR1645HC0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MBR1645HC0G is usually 5 days.
3.What payment methods are accepted for MBR1645HC0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MBR1645HC0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MBR1645HC0G?
MBR1645HC0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MBR1645HC0G 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 MBR1645HC0G?
For technical support, including MBR1645HC0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MBR1645HC0G requirements.
6.How does Aetrix verify that MBR1645HC0G is sourced from the original manufacturer or authorized distributors?
All MBR1645HC0G 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 MBR1645HC0G meets industry standards.
7.What is the process for return or replacement of MBR1645HC0G?
All MBR1645HC0G units undergo pre-shipment inspection (PSI). If there is an issue with MBR1645HC0G, 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 MBR1645HC0G part is unused and in its original packaging.
Return procedure for MBR1645HC0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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