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Taiwan Semiconductor Corporation MBRF1635
- Part No.:
- MBRF1635
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- TO-220-2 Full Pack
- Datasheet:
-
MBRF1635.pdf
- Description:
- 16A, 35V, PLANAR SCHOTTKY
- Quantity:
- Payment:
- Shipping:
Inventory:6,922
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Product details
Overview
MBRF1635 from Taiwan Semiconductor is a 16A, 35V Schottky barrier rectifier in ITO-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 a primary output rectifier in high-efficiency SMPS for industrial adapters and DC-DC converters.
For engineers reviewing the MBRF1635 datasheet, MBRF1635 pinout, MBRF1635 application, or MBRF1635 equivalent, key selection criteria include its 35 V repetitive peak reverse voltage, 3 °C/W junction-to-case thermal resistance, guard ring over-voltage protection, and UL Recognized status (E-326243) for safety-critical power designs.
Technical Context
This single-die Schottky rectifier operates with a maximum junction temperature of 150°C and supports continuous forward current up to 16 A at case temperatures ≤85°C. Its low VF enables high efficiency in 12–24 V output rails, while the 10,000 V/µs critical dv/dt rating ensures robustness against fast-switching transients in synchronous rectifier topologies.
The ITO-220AC package provides direct metal tab thermal conduction, enabling effective heatsinking without isolation washers. Matte tin-plated leads meet J-STD-002 solderability, and the device passes JESD201 Class 2 whisker testing for long-term reliability in automotive-grade applications when ordered with "H" suffix.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IF (Continuous Forward Current) | 16 A - Sustains full-rated output current in compact SMPS without forced air cooling |
| VRRM (Repetitive Peak Reverse Voltage) | 35 V - Rated for 12 V and 24 V secondary-side rectification with margin against transient spikes |
| VF (Forward Voltage @ 16 A, 25°C) | 0.63 V - Reduces conduction loss to ~10 W per device, improving system efficiency >92% |
| IFSM (Surge Forward Current) | 150 A - Withstands cold-start inrush and short-circuit recovery events in 60 Hz line-synchronized supplies |
| RθJC (Junction-to-Case) | 3 °C/W - Enables thermal design with ≤45°C temperature rise at full load using standard heatsink mounting |
| TJ max | 150 °C - Supports operation in sealed enclosures or high-ambient environments up to 105°C ambient |
| IR (Reverse Current @ 35 V, 25°C) | 500 µA - Minimizes standby leakage in energy-efficient adapter designs meeting Level VI standards |
Pinout & Package
Package: ITO-220AC - Insulated TO-220 variant with electrically isolated metal tab, UL 94V-0 molding compound, and 1.70 g mass. Mounting torque ≤0.56 N·m. Polarity marked on device body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Tab) | Current input terminal | Electrically isolated metal tab serves as anode connection and primary thermal path to heatsink |
| Cathode (Lead) | Current output terminal | Single lead opposite tab; carries full forward current to PCB trace or busbar |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring structure | Prevents edge breakdown under voltage stress, enabling stable 35 V VRRM rating in compact die area |
| AEC-Q101 qualification (H version) | Validated for automotive power modules requiring extended temperature cycling and mechanical shock resistance |
| UL Recognition #E-326243 | Confirms compliance with UL/CSA 60950-1 and 62368-1 for end-equipment safety certification |
| Halogen-free construction | Meets IEC 61249-2-21, supporting RoHS-compliant manufacturing and environmentally regulated markets |
| High dv/dt immunity (10,000 V/µs) | Resists false turn-on during fast switching in synchronous rectifier control schemes |
Applications
| Industrial AC-DC Adapters | Server PSU Secondary Rectification |
|---|---|
Use Scenario: 24 V, 200 W wall-mount adapter for factory automation controllers. IC Role / Device Role / Timing Role: Primary output rectifier converting transformer secondary AC to regulated DC. Use Value: 0.63 V forward drop reduces conduction loss by 1.2 W vs. comparable Si diodes, lowering thermal load on compact heatsink. | Use Scenario: +12 V rail rectification in redundant 1+1 server power supply units. IC Role / Device Role / Timing Role: High-current freewheeling diode in synchronous buck converter output stage. Use Value: 150 A IFSM rating supports fault current limiting during OCP events without catastrophic failure. |
| Telecom DC-DC Converters | Automotive On-Board Charger (OBC) Auxiliary Supply |
Use Scenario: 48 V input to 3.3 V/5 V point-of-load converter in base station power shelf. IC Role / Device Role / Timing Role: Output rectifier in isolated flyback or forward converter feeding LDO pre-regulator. Use Value: 500 µA IR at 25°C minimizes standby power draw, aiding compliance with ETSI EN 300 386 Class C limits. | Use Scenario: 12 V auxiliary supply rectification in 3.3 kW bidirectional OBC for 400 V battery systems. IC Role / Device Role / Timing Role: Isolated auxiliary supply rectifier powered from transformer auxiliary winding. Use Value: AEC-Q101 qualified version (MBRF1635H) ensures reliability across -40°C to +125°C under vehicle vibration and thermal cycling. |
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-MBR1635CT | TO-220AB package (non-isolated tab); VF = 0.62 V @ 16 A; RθJC = 3.5 °C/W | Requires electrical isolation hardware (mica washer + shoulder washer) for heatsink mounting | Select when cost sensitivity outweighs assembly complexity and thermal performance margin is acceptable |
| ON Semiconductor MBR1635CT | TO-220AB package; VF = 0.65 V @ 16 A; UL Recognized #E170237; no AEC-Q101 option | Lacks automotive qualification path; lower dv/dt rating (5,000 V/µs) | Choose for non-automotive industrial use where UL recognition suffices and surge immunity is less critical |
Compared with MBRF1635, VS-MBR1635CT offers marginally lower VF but requires added isolation components and delivers 17% higher thermal resistance, while MBR1635CT lacks AEC-Q101 support and dv/dt robustness-making MBRF1635 the preferred choice for thermally constrained or automotive-qualified designs.
Availability
MBRF1635 is available at Aetrix Electronics and suitable for industrial AC-DC adapters, telecom DC-DC converters, and automotive auxiliary power supplies requiring stable component supply, long-lifecycle availability, and traceable sourcing.
Supply support for MBRF1635 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 industrial, computing, and automotive markets since 1979.
The MBRF1635 belongs to TSC's automotive-qualified Schottky rectifier product line, engineered for high-efficiency, high-reliability secondary-side rectification in space-constrained power systems operating up to 150°C junction temperature.
FAQ
What is the maximum junction temperature rating for the MBRF1635?
The MBRF1635 has a maximum junction temperature (TJ) of +150°C, allowing operation in high-ambient environments such as enclosed industrial power supplies or under-hood automotive auxiliary circuits. This rating is validated across the full VRRM range and supports derating curves that maintain 16 A forward current up to 85°C case temperature.
Does the MBRF1635 have UL recognition and what does it cover?
Yes, the MBRF1635 holds UL Recognition File #E-326243, covering compliance with UL/CSA 60950-1 and 62368-1 for information technology and audio/video equipment. This certification applies to the device's flammability (UL 94V-0), electrical insulation, and thermal performance-enabling faster end-product safety approvals.
Is the MBRF1635 pin-compatible with TO-220AB Schottky rectifiers like MBR1635CT?
No-the MBRF1635 uses the ITO-220AC package with an electrically isolated metal tab, whereas MBR1635CT uses TO-220AB with a conductive tab. Pin assignment differs: MBRF1635 tab = anode (isolated), lead = cathode; TO-220AB devices typically assign tab = cathode. PCB layout and heatsink isolation must be redesigned for interchange.
What is the reverse leakage current specification for the MBRF1635 at elevated temperature?
At rated 35 V reverse voltage and 125°C junction temperature, the MBRF1635 exhibits a maximum reverse current (IR) of 15 mA. This value is measured under pulse conditions (PW = 30 ms) and reflects real-world behavior in high-temp SMPS applications where leakage directly impacts standby efficiency and thermal runaway risk.
How does the guard ring feature improve reliability in the MBRF1635?
The guard ring in the MBRF1635 mitigates electric field crowding at the silicon periphery, preventing premature avalanche breakdown under transient overvoltage. This structural enhancement allows consistent 35 V VRRM performance across process variations and extends operational life in noisy industrial power environments with frequent line surges.
MBRF1635 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- TO-220-2 Full Pack
- Packaging:
- Tube
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 35 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 @ 35 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- ITO-220AC
- Operating Temperature - Junction:
- -55°C ~ 150°C
MBRF1635 FAQ
1.How can I place an order for MBRF1635 through Aetrix?
Please submit a Request for Quotation (RFQ) for MBRF1635 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 MBRF1635 reliable?
The price and inventory of MBRF1635 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MBRF1635 is usually 5 days.
3.What payment methods are accepted for MBRF1635?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MBRF1635 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MBRF1635?
MBRF1635 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MBRF1635 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 MBRF1635?
For technical support, including MBRF1635 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MBRF1635 requirements.
6.How does Aetrix verify that MBRF1635 is sourced from the original manufacturer or authorized distributors?
All MBRF1635 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 MBRF1635 meets industry standards.
7.What is the process for return or replacement of MBRF1635?
All MBRF1635 units undergo pre-shipment inspection (PSI). If there is an issue with MBRF1635, 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 MBRF1635 part is unused and in its original packaging.
Return procedure for MBRF1635:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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