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Taiwan Semiconductor Corporation MBRF1090
- Part No.:
- MBRF1090
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- TO-220-2 Full Pack
- Datasheet:
-
MBRF1090.pdf
- Description:
- 10A, 90V, PLANAR SCHOTTKY
- Quantity:
- Payment:
- Shipping:
Inventory:7,291
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Product details
Overview
MBRF1090 from Taiwan Semiconductor is a 10A, 90V Schottky barrier rectifier in ITO-220AC package, featuring low forward voltage (0.85 V @ 10A, 25°C), high surge current capability (150 A), and junction temperature rating up to +150°C. It serves as a primary output rectifier in high-efficiency DC-DC converters and SMPS for industrial power supplies.
For engineers reviewing the MBRF1090 datasheet, MBRF1090 pinout, MBRF1090 application, or MBRF1090 equivalent, key selection criteria include its 90V reverse voltage rating, thermal resistance (3°C/W), guard ring over-voltage protection, and AEC-Q101 qualification availability - critical for automotive-grade power conversion designs requiring reliability under transient stress.
Technical Context
The MBRF1090 uses a single-die Schottky structure with guard ring design to enhance ruggedness against repetitive over-voltage transients. Its low VF and fast recovery enable high efficiency in continuous conduction mode (CCM) and boundary conduction mode (BCM) topologies.
Thermal performance is defined by a junction-to-case resistance of 3°C/W (typical), enabling direct heatsink mounting without thermal interface material in many 10A applications. Reverse leakage remains ≤6 mA at 125°C and rated VR, supporting stable operation in thermally constrained environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 90 V - Maximum repetitive reverse voltage; defines safe blocking capability in flyback or forward converter secondary-side rectification |
| IF | 10 A - Average forward current; supports continuous 10A DC output in compact industrial adapters |
| VF @ 10A, 25°C | 0.85 V - Low conduction loss reduces heat generation and improves system efficiency vs. silicon diodes |
| IFSM | 150 A - Non-repetitive surge rating; withstands inrush and short-circuit events in SMPS without failure |
| TJ max | +150°C - High junction temperature limit allows operation in sealed enclosures or high-ambient environments |
| RθJC | 3°C/W - Enables effective thermal management using standard ITO-220AC heatsinks |
| IR @ 90V, 125°C | 6 mA - Controlled reverse leakage ensures stable biasing and minimal standby loss in high-temp operation |
Pinout & Package
Package: ITO-220AC - Insulated TO-220 variant with isolated tab, UL 94V-0 molding compound, matte tin-plated leads, and 0.56 N·m maximum mounting torque. Polarity marked on device body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point | Connected to transformer secondary or switching node; requires low-inductance layout to minimize ringing |
| Cathode | Current exit point | Connected to output capacitor and load; serves as reference for output voltage sensing |
| Tab (isolated) | Thermal path only | Electrically isolated metal surface for heatsink attachment; no electrical connection required |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring structure | Enhances avalanche ruggedness and prevents premature edge breakdown under voltage transients |
| AEC-Q101 qualified version available | Validated for automotive power modules where reliability under thermal cycling and vibration is mandatory |
| UL Recognized (E-326243) | Meets safety requirements for end-equipment certification in AC/DC adapters and industrial power supplies |
| Halogen-free per IEC 61249-2-21 | Complies with RoHS and environmental regulations for green manufacturing and disposal |
| JESD 201 Class 2 whisker resistance | Prevents tin whisker growth in long-life applications operating above 60°C ambient |
Applications
| Server PSU Output Rectification | Automotive DC-DC Converter |
|---|---|
Use Scenario: Secondary-side rectification in 48V–12V isolated buck-derived converters for ADAS ECUs. IC Role / Device Role / Timing Role: Power rectifier converting high-frequency transformer output to regulated 12V supply. Use Value: 0.85 V VF minimizes conduction loss at 10A, reducing thermal load in space-constrained ECU housings. | Use Scenario: Output stage in 12V–5V non-isolated buck converters powering infotainment systems. IC Role / Device Role / Timing Role: Synchronous rectifier replacement in high-efficiency point-of-load designs. Use Value: 150A IFSM rating handles cold-crank surges without derating; AEC-Q101 option ensures qualification compliance. |
| Industrial Adapter Primary-Side Clamp | Telecom Power Shelf Rectifier |
Use Scenario: Snubber clamp diode in flyback converters for DIN-rail mounted programmable logic controllers. IC Role / Device Role / Timing Role: Transient energy dissipation path during MOSFET turn-off. Use Value: Guard ring enables reliable clamping at 90V with <1µs recovery, preventing voltage overshoot beyond MOSFET rating. | Use Scenario: Output rectification in modular 48V telecom power shelves delivering >200W per module. IC Role / Device Role / Timing Role: High-current freewheeling path in synchronous rectified forward converters. Use Value: 3°C/W RθJC allows direct heatsink mounting with <10°C rise at full 10A load, simplifying thermal design. |
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-MBR1090CT | TO-220AB package (non-isolated tab); VF = 0.82 V @ 10A, 25°C; IFSM = 120 A | Lacks isolation between tab and cathode; requires insulating hardware for heatsink mounting | Select when cost sensitivity outweighs isolation requirement and lower surge margin is acceptable |
| ON Semiconductor MBR1090CT | TO-220AB package; VF = 0.87 V @ 10A, 25°C; TJ max = +175°C; no AEC-Q101 option | Higher max junction temperature but no automotive qualification path; different thermal resistance (4.5°C/W) | Choose for extended-temperature industrial use where AEC-Q101 is not mandated |
Compared with VS-MBR1090CT and MBR1090CT, the MBRF1090 offers electrically isolated tab mounting, tighter VF consistency at high temperature, and optional AEC-Q101 qualification - making it preferred for automotive and safety-critical industrial power stages where mechanical isolation and qualification traceability are mandatory.
Availability
MBRF1090 is available at Aetrix Electronics and suitable for switching mode power supplies, DC-DC converters, and industrial adapters requiring stable component supply across multi-year production cycles.
Supply support for MBRF1090 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 devices, rectifiers, and protection components.
The MBRF1090 belongs to TSC's automotive-qualified Schottky rectifier product line, engineered for high-reliability power conversion in harsh environments including automotive, industrial, and telecom infrastructure.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) for MBRF1090?
The MBRF1090 has a VRRM rating of 90 V, verified per Taiwan Semiconductor's M2105 datasheet revision. This value defines the highest continuous reverse-bias voltage the device can block without breakdown under normal operating conditions. Exceeding 90 V risks irreversible avalanche failure. The MBRF1090 is part of a family spanning 35 V to 200 V, and its exact 90 V rating is laser-marked on the device body as "MBRF1090".
Is MBRF1090 pin-compatible with TO-220AB Schottky rectifiers like MBR1090CT?
No - the MBRF1090 uses an ITO-220AC package with electrically isolated tab, while MBR1090CT uses TO-220AB with cathode-connected tab. Pinout differs: MBRF1090 has Anode, Cathode, and isolated Tab terminals; MBR1090CT has Anode and Cathode only, with tab tied to cathode. PCB layout and heatsink insulation must be redesigned for MBRF1090 replacement.
Does MBRF1090 have AEC-Q101 qualification?
The base MBRF1090 is not automatically AEC-Q101 qualified; however, the AEC-Q101-qualified version is orderable as MBRF1090H per Taiwan Semiconductor's ordering table. Both share identical electrical specs and package, but MBRF1090H undergoes additional stress testing per AEC-Q101. Always verify the "H" suffix and certificate number when sourcing for automotive applications.
What is the forward voltage drop of MBRF1090 at 10A and 125°C?
Per the M2105 datasheet, the MBRF1090 exhibits a typical forward voltage of 0.71 V at 10A and 125°C. This value is measured under pulsed conditions (PW = 0.3 ms) and reflects reduced conduction loss at elevated temperatures - a key advantage over silicon rectifiers. At room temperature, VF is 0.85 V (max), confirming stable thermal coefficient behavior across the operating range.
How does the guard ring in MBRF1090 improve reliability?
The guard ring in MBRF1090 is a diffused p-type region surrounding the active Schottky junction, which redistributes electric field lines during reverse-bias transients. This prevents localized avalanche at junction edges, increasing dv/dt immunity (10,000 V/µs) and enabling robust operation during inductive switching spikes. It directly contributes to the device's UL recognition and suitability for unregulated input stages in industrial power supplies.
MBRF1090 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):
- 10A
- Voltage - Forward (Vf) (Max) @ If:
- 850 mV @ 10 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
MBRF1090 FAQ
1.How can I place an order for MBRF1090 through Aetrix?
Please submit a Request for Quotation (RFQ) for MBRF1090 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 MBRF1090 reliable?
The price and inventory of MBRF1090 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MBRF1090 is usually 5 days.
3.What payment methods are accepted for MBRF1090?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MBRF1090 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MBRF1090?
MBRF1090 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MBRF1090 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 MBRF1090?
For technical support, including MBRF1090 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MBRF1090 requirements.
6.How does Aetrix verify that MBRF1090 is sourced from the original manufacturer or authorized distributors?
All MBRF1090 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 MBRF1090 meets industry standards.
7.What is the process for return or replacement of MBRF1090?
All MBRF1090 units undergo pre-shipment inspection (PSI). If there is an issue with MBRF1090, 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 MBRF1090 part is unused and in its original packaging.
Return procedure for MBRF1090:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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