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Taiwan Semiconductor Corporation MBRF2090
- Part No.:
- MBRF2090
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- TO-220-2 Full Pack
- Datasheet:
-
MBRF2090.pdf
- Description:
- 20A, 90V, PLANAR SCHOTTKY
- Quantity:
- Payment:
- Shipping:
Inventory:6,405
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Product details
Overview
MBRF2090 from Taiwan Semiconductor is a 20A, 90V Schottky barrier rectifier in ITO-220AC package, designed for high-efficiency DC/DC conversion and SMPS output stages. It delivers 0.95V forward voltage at 20A/25°C, 5mA reverse leakage at 125°C, and 150A surge capability - enabling compact, thermally robust power supplies in automotive adapters and industrial converters.
For engineers reviewing the MBRF2090 datasheet, MBRF2090 pinout, MBRF2090 application, or MBRF2090 equivalent, key selection criteria include its 90V VRRM, 3°C/W junction-to-case thermal resistance, AEC-Q101 qualification option (MBRF2090H), guard-ring overvoltage protection, and UL recognition (E-326243).
Technical Context
The MBRF2090 uses a single-die Schottky structure optimized for low conduction loss and fast switching in unidirectional output rectification. Its 90V peak reverse voltage rating supports 48V–72V bus-derived power rails, while the ITO-220AC package enables direct heatsink mounting with 0.56 N·m torque specification.
Thermally, it sustains continuous 20A operation up to 125°C case temperature, with derating to zero at 150°C junction temperature. The 10,000 V/µs dv/dt rating ensures stability under fast-switching transients common in synchronous rectifier replacement applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 90 V - Maximum repetitive reverse voltage; defines safe operating limit in 48V/60V DC bus applications |
| IF | 20 A - Continuous forward current; supports 100W+ output stages without forced air cooling |
| VF @ 20A, 25°C | 0.95 V - Low conduction loss reduces heat generation vs. silicon diodes; improves system efficiency by ~2–3% |
| IR @ 90V, 125°C | 5 mA - Controlled reverse leakage enables stable operation in high-temperature environments |
| RθJC | 3 °C/W - Enables direct heatsink mounting; allows 60°C temperature rise at full load with 180 cm² heatsink |
| IFSM | 150 A - Withstands 8.3ms half-sine surges; protects against inrush and fault currents in SMPS outputs |
| TJ max | 150 °C - Supports extended thermal margin in sealed enclosures or under sustained overload conditions |
Pinout & Package
Package: ITO-220AC - Insulated TO-220 variant with electrically isolated tab, UL 94V-0 molding compound, matte tin-plated leads, 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 during conduction |
| Cathode (Lead 2) | Output current exit point | Connected to output capacitor and load; polarity-marked on device body |
| Tab (Isolated) | Thermal path / mechanical anchor | Electrically isolated metal surface for heatsink attachment; no electrical connection to die |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring structure | Prevents edge breakdown at 90V reverse bias, improving reliability in transient-prone power rails |
| AEC-Q101 qualification option | Available as MBRF2090H - validated for automotive under-hood temperature cycling and vibration stress |
| UL Recognized (E-326243) | Meets safety requirements for end-equipment certification in AC/DC adapters and industrial PSUs |
| Halogen-free construction | Complies with IEC 61249-2-21; supports RoHS-compliant manufacturing and end-of-life handling |
| 150A surge rating | Withstands repeated cold-start inrush events in 24–48V systems without degradation |
Applications
| Automotive DC/DC Converters | Industrial SMPS Outputs |
|---|---|
Use Scenario: 12V/24V-to-5V/3.3V buck-derived converter in engine control units or ADAS camera modules. IC Role / Device Role / Timing Role: Output rectifier replacing synchronous MOSFETs where simplicity and cost outweigh marginal efficiency gains. Use Value: Eliminates gate drive complexity while maintaining <1.0V dropout and <5mA leakage at 125°C ambient. | Use Scenario: Secondary-side rectification in 48V telecom power supplies delivering 20A to server backplanes. IC Role / Device Role / Timing Role: Unidirectional freewheeling path in hard-switched forward or flyback topologies. Use Value: 0.95V VF minimizes conduction loss; 3°C/W RθJC enables passive heatsinking in space-constrained 1U chassis. |
| Medical Power Adapters | Renewable Energy Charge Controllers |
Use Scenario: Isolated 24V adapter powering portable diagnostic equipment with strict leakage current limits. IC Role / Device Role / Timing Role: Output rectifier in double-isolated flyback design meeting IEC 60601 creepage/clearance requirements. Use Value: UL E-326243 recognition simplifies safety certification; halogen-free package meets medical environmental standards. | Use Scenario: Battery charging stage in off-grid solar controllers converting PV array voltage (up to 100V) to 24V/48V battery banks. IC Role / Device Role / Timing Role: High-voltage input rectifier handling variable DC input with intermittent surge exposure. Use Value: 90V VRRM accommodates PV open-circuit spikes; 150A IFSM withstands lightning-induced transients. |
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-20BQ090PbF | Same 20A/90V rating; VF = 0.82V @ 20A/25°C (lower), but RθJC = 4.5°C/W (higher) | Better efficiency at light loads; requires larger heatsink at full load due to higher thermal resistance | Prefer when optimizing for partial-load efficiency in fan-cooled systems |
| ON Semiconductor MBR2090CT | Dual common-cathode configuration (2×10A); not single-die; VF = 0.87V @ 10A/25°C per diode | Requires PCB layout change; suitable only where dual-output or redundancy is needed | Select only if dual-diode topology aligns with existing board design |
Compared with VS-20BQ090PbF and MBR2090CT, the MBRF2090 offers superior thermal performance (3°C/W vs. 4.5°C/W) and single-die simplicity, making it optimal for space-constrained, passively cooled 20A rectification where layout reuse and thermal headroom are critical.
Availability
MBRF2090 is available at Aetrix Electronics and suitable for automotive DC/DC converters, industrial SMPS outputs, and medical power adapters requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MBRF2090 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 automotive, industrial, and consumer markets since 1979.
The MBRF2090 belongs to TSC's AEC-Q101-qualified Schottky rectifier product line, engineered for high-reliability power conversion in thermally demanding environments where low VF, robust surge immunity, and certified safety compliance are mandatory.
FAQ
What is the maximum junction temperature rating for the MBRF2090?
The MBRF2090 has a maximum junction temperature (TJ) of +150°C. This rating allows continuous operation at full 20A load under elevated ambient conditions when properly heatsinked. Derating begins above 125°C case temperature, reaching zero current capacity at 150°C. The MBRF2090 must be mounted with ≤0.56 N·m torque to maintain thermal interface integrity and avoid die stress.
Does the MBRF2090 have AEC-Q101 qualification?
The base MBRF2090 is not AEC-Q101 qualified; however, the MBRF2090H variant is explicitly qualified per AEC-Q101. Both share identical electrical and thermal specifications, but only MBRF2090H undergoes automotive-grade stress testing including temperature cycling, humidity bias, and mechanical shock. For automotive under-hood use, specify MBRF2090H - the MBRF2090 itself is intended for industrial and commercial applications.
What is the forward voltage drop of the MBRF2090 at 20A and 125°C?
The MBRF2090 exhibits a typical forward voltage (VF) of 0.87 V at 20A and 125°C junction temperature. This value is confirmed in the Electrical Specifications table of the official Taiwan Semiconductor datasheet (Version K2105). At 25°C, VF is 0.95 V - the reduction at higher temperature reflects the negative temperature coefficient inherent to Schottky diodes.
Is the MBRF2090 pin-compatible with other devices in the MBRF20xx family?
Yes, all MBRF20xx variants - including MBRF2035, MBRF2060, and MBRF20100 - share identical ITO-220AC packaging, pinout (Anode/Cathode/Isolated Tab), and mechanical footprint. Voltage rating differences (35V–100V) do not affect physical compatibility. Designers may substitute within the family without PCB changes, provided reverse voltage and thermal margins are verified for the target application.
What safety certifications does the MBRF2090 hold?
The MBRF2090 is UL Recognized under File #E-326243 and complies with RoHS Directive 2011/65/EU and IEC 61249-2-21 (halogen-free). It is not CE-marked as a standalone component, but its UL recognition facilitates end-product safety approvals for AC/DC adapters, industrial PSUs, and medical power supplies. No IEC 60950 or IEC 62368 certification is claimed for the bare device.
MBRF2090 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):
- 90 V
- Current - Average Rectified (Io):
- 20A
- Voltage - Forward (Vf) (Max) @ If:
- 950 mV @ 20 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 100 µA @ 90 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- ITO-220AC
- Operating Temperature - Junction:
- -55°C ~ 150°C
MBRF2090 FAQ
1.How can I place an order for MBRF2090 through Aetrix?
Please submit a Request for Quotation (RFQ) for MBRF2090 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 MBRF2090 reliable?
The price and inventory of MBRF2090 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MBRF2090 is usually 5 days.
3.What payment methods are accepted for MBRF2090?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MBRF2090 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MBRF2090?
MBRF2090 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MBRF2090 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 MBRF2090?
For technical support, including MBRF2090 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MBRF2090 requirements.
6.How does Aetrix verify that MBRF2090 is sourced from the original manufacturer or authorized distributors?
All MBRF2090 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 MBRF2090 meets industry standards.
7.What is the process for return or replacement of MBRF2090?
All MBRF2090 units undergo pre-shipment inspection (PSI). If there is an issue with MBRF2090, 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 MBRF2090 part is unused and in its original packaging.
Return procedure for MBRF2090:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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