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Taiwan Semiconductor Corporation MBRF2035 C0G
- Part No.:
- MBRF2035 C0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- TO-220-2 Full Pack
- Datasheet:
-
MBRF2035 C0G.pdf
- Description:
- DIODE SCHOTTKY 35V 20A ITO220AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,381
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Product details
Overview
MBRF2035 from Taiwan Semiconductor is a 20A, 35V Schottky barrier rectifier in ITO-220AC package, featuring low forward voltage (0.75 V @ 20 A, 25°C), 150 A surge capability, and AEC-Q101 qualification option. It serves as a high-efficiency output rectifier in automotive-grade DC/DC converters and industrial SMPS.
For engineers reviewing the MBRF2035 datasheet, MBRF2035 pinout, MBRF2035 application, or MBRF2035 equivalent, key selection criteria include junction-to-case thermal resistance (3°C/W), repetitive peak reverse voltage (35 V), reverse leakage (200 µA @ 25°C), and mounting torque limit (0.56 N·m).
Technical Context
This single-die Schottky rectifier uses guard ring technology for over-voltage protection and meets JESD201 Class 2 whisker resistance. Its 10,000 V/µs dv/dt rating supports fast-switching topologies without parasitic turn-on.
Designed for surface-mount-compatible through-hole assembly, it delivers 40 A peak repetitive forward current (square wave, 20 kHz) and operates across –55°C to +150°C junction temperature range with UL 94V-0 molding compound.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IF | 20 A continuous forward current - defines maximum steady-state output power handling in DC/DC stages |
| VRRM | 35 V repetitive peak reverse voltage - sets maximum blocking capability in buck or flyback secondary side |
| VF @ 20A, 25°C | 0.75 V max - directly determines conduction loss and thermal load at full rated current |
| IFSM | 150 A non-repetitive surge - enables robustness against startup inrush and transient overload events |
| RθJC | 3 °C/W - quantifies thermal path efficiency from die to heatsink interface for thermal design margining |
| IR @ 35V, 25°C | 200 µA max - ensures minimal standby power loss in always-on power rails |
Pinout & Package
Package: ITO-220AC - 3-terminal through-hole molded package with matte tin-plated leads, UL 94V-0 flammability rating, and polarity marking on case.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input current terminal | Connected to switching node or transformer secondary; must withstand full surge current and dv/dt stress |
| Cathode | Output current terminal | Routes rectified current to output capacitor; low-inductance layout critical for EMI control |
| Case (Tab) | Thermal & electrical connection to cathode | Electrically tied to cathode; requires insulated mounting if cathode is not at chassis ground |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified version available | Validated for automotive power modules requiring reliability under temperature cycling and vibration |
| Guard ring structure | Prevents premature edge breakdown under high dv/dt or localized overvoltage transients |
| 150 A IFSM rating | Supports >7× rated current surge without bond wire fusing during line dip recovery |
| Junction-to-case thermal resistance = 3°C/W | Enables ≥10 W dissipation with ≤30°C rise above heatsink temperature in forced-air systems |
| Halogen-free per IEC 61249-2-21 | Complies with RoHS and automotive end-of-life material restrictions without compromising flame retardancy |
Applications
| Automotive DC/DC Converters | Industrial SMPS Outputs |
|---|---|
Use Scenario: 12 V–48 V bidirectional DC/DC stage in 48 V mild-hybrid vehicle architectures. IC Role / Device Role / Timing Role: Output synchronous rectifier replacing MOSFETs in high-frequency phase-shifted full-bridge topology. Use Value: 0.75 V VF reduces conduction loss by ~30% vs. silicon diodes, lowering heatsink requirements in space-constrained engine bays. | Use Scenario: Secondary-side rectification in 3 kW telecom rectifier with 100 kHz switching frequency. IC Role / Device Role / Timing Role: Uncontrolled rectifier in center-tapped forward converter delivering 54 V/37 A output. Use Value: 150 A IFSM withstands repeated 200 A input surges during AC line restrike, eliminating need for parallel devices. |
| Laptop Adapters | Server VRMs |
Use Scenario: 19.5 V/4.62 A output stage in compact 90 W external adapter with 65 kHz PWM. IC Role / Device Role / Timing Role: Low-loss freewheeling path during high-side switch off-time in active-clamp flyback. Use Value: 200 µA IR at 25°C minimizes no-load power draw below 100 mW, meeting Level VI efficiency standards. | Use Scenario: Point-of-load (POL) rectification in 12 V input → 0.8 V/120 A server CPU VRM. IC Role / Device Role / Timing Role: Secondary-side clamp diode in multiphase buck converter with coupled inductors. Use Value: 3°C/W RθJC allows direct tab mounting to cold plate, enabling 25°C junction rise at 15 W dissipation without fan assistance. |
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-20BQ030-M3/45 | Same 20 A / 35 V rating; VF = 0.52 V typ @ 20 A but only rated to TJ = 125°C (vs. 150°C for MBRF2035) | Preferred in consumer adapters where lower VF dominates; less suitable for under-hood automotive use | Select when lowest conduction loss is prioritized over extended temperature margin |
| ON Semiconductor MBR2035CT | Dual common-cathode configuration (2×10 A); VF = 0.72 V max @ 10 A; ITO-220AB package with isolated tab | Used in dual-output supplies or where cathode isolation from heatsink is mandatory | Select when circuit requires dual independent outputs or electrically isolated thermal path |
Compared with VS-20BQ030-M3/45 and MBR2035CT, the MBRF2035 offers superior junction temperature rating (150°C), integrated guard ring for dv/dt immunity, and single-anode/single-cathode simplicity-making it optimal for high-reliability, thermally constrained automotive and industrial rectification where layout density and transient robustness are critical.
Availability
MBRF2035 is available at Aetrix Electronics and suitable for automotive DC/DC converters, industrial SMPS outputs, and laptop adapters requiring stable component supply with long-term lifecycle support.
Supply support for MBRF2035 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, serving automotive, industrial, and computing markets since 1979.
The MBRF2035 belongs to TSC's AEC-Q101-qualified Schottky rectifier product line, engineered specifically for high-efficiency, high-reliability power conversion in harsh-environment applications including engine control units and base station power supplies.
FAQ
What is the maximum junction temperature rating for MBRF2035?
The MBRF2035 has a maximum junction temperature (TJ MAX) of +150°C, verified per absolute maximum ratings table in the official Taiwan Semiconductor datasheet revision K2105. This rating enables operation in under-hood automotive environments and high-ambient industrial enclosures where thermal margins are tight. Derating curves confirm usable current capacity down to 10 A at 125°C case temperature.
Is MBRF2035 pin-compatible with MBRF2045 or other variants in the same family?
No, MBRF2035 is not pin-compatible with MBRF2045 or higher-voltage variants in the MBRF20xx series. While all share the ITO-220AC package outline and identical pinout (anode, cathode, tab), their marking codes, voltage ratings, and forward voltage characteristics differ. Substitution requires verification of circuit-level voltage stress and thermal performance-not just mechanical fit.
Does MBRF2035 have AEC-Q101 qualification?
Yes, the MBRF2035H variant is AEC-Q101 qualified, as explicitly stated in the ordering information section of the Taiwan Semiconductor datasheet. The standard MBRF2035 (non-H suffix) is not AEC-Q101 certified. Designers targeting automotive applications must specify the 'H' suffix part number to ensure compliance with stress test requirements for temperature cycling, humidity, and mechanical shock.
What is the thermal resistance from junction to case (RθJC) for MBRF2035?
The junction-to-case thermal resistance (RθJC) for MBRF2035 is 3°C/W, measured under standard test conditions per JEDEC JESD51-14. This value applies to the ITO-220AC package with proper mounting torque (≤0.56 N·m) and thermal interface material. It enables accurate thermal modeling when the tab is mounted to an external heatsink.
How does the guard ring feature improve reliability of MBRF2035?
The guard ring in MBRF2035 mitigates edge breakdown under high dv/dt or localized overvoltage conditions by controlling electric field distribution at the silicon periphery. As confirmed in the device's mechanical and electrical specifications, this structure enhances ruggedness in fast-switching SMPS and automotive transients-reducing failure risk during load dump or inductive kick events without increasing forward voltage.
MBRF2035 C0G 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):
- 20A
- Voltage - Forward (Vf) (Max) @ If:
- 750 mV @ 20 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 200 µA @ 35 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- ITO-220AC
- Operating Temperature - Junction:
- -55°C ~ 150°C
MBRF2035 C0G FAQ
1.How can I place an order for MBRF2035 C0G through Aetrix?
Please submit a Request for Quotation (RFQ) for MBRF2035 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 MBRF2035 C0G reliable?
The price and inventory of MBRF2035 C0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MBRF2035 C0G is usually 5 days.
3.What payment methods are accepted for MBRF2035 C0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MBRF2035 C0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MBRF2035 C0G?
MBRF2035 C0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MBRF2035 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 MBRF2035 C0G?
For technical support, including MBRF2035 C0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MBRF2035 C0G requirements.
6.How does Aetrix verify that MBRF2035 C0G is sourced from the original manufacturer or authorized distributors?
All MBRF2035 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 MBRF2035 C0G meets industry standards.
7.What is the process for return or replacement of MBRF2035 C0G?
All MBRF2035 C0G units undergo pre-shipment inspection (PSI). If there is an issue with MBRF2035 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 MBRF2035 C0G part is unused and in its original packaging.
Return procedure for MBRF2035 C0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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