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Taiwan Semiconductor Corporation MBRF890CT
- Part No.:
- MBRF890CT
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Diode Arrays
- Package:
- TO-220-3 Full Pack, Isolated Tab
- Datasheet:
-
MBRF890CT.pdf
- Description:
- DIODE ARR SCHOTT 90V 8A ITO220AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,413
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Product details
Overview
MBRF890CT from Taiwan Semiconductor is a dual-die Schottky barrier rectifier in ITO-220AB package, rated for 8 A average forward current, 90 V repetitive peak reverse voltage (VRRM), and 150 A non-repetitive surge current (IFSM), used in high-efficiency DC/DC converters and SMPS secondary-side rectification.
For engineers reviewing the MBRF890CT datasheet, MBRF890CT pinout, MBRF890CT application, or MBRF890CT equivalent, key selection factors include its 0.85 V typical forward voltage at 4 A and 25 °C, 5 µA max reverse leakage at 125 °C, 6 °C/W junction-to-case thermal resistance, and AEC-Q101 qualification availability in variant MBRF890CTH.
Technical Context
The MBRF890CT integrates two independent Schottky diodes in a common-cathode configuration within a single ITO-220AB thermally enhanced package, enabling synchronous or interleaved rectification topologies. Its guard ring structure provides overvoltage protection, and it sustains 10,000 V/µs critical rate of rise of off-state voltage (dv/dt).
Designed for operation across -55 °C to +150 °C junction temperature range, the device delivers stable performance under high-frequency switching conditions with low forward conduction loss and minimal reverse recovery charge-critical for >100 kHz SMPS designs requiring high efficiency and low EMI.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 90 V - Maximum reverse blocking capability per diode; defines usable input/output voltage range in buck-derived topologies |
| IF(AVG) | 8 A - Continuous forward current rating per diode; determines heatsink sizing and derating margin at elevated case temperatures |
| IFSM | 150 A - Peak non-repetitive surge current; supports inrush and transient overload handling without failure |
| VF @ 4A, 25°C | 0.85 V typ - Low conduction loss per diode; directly reduces power dissipation and improves system efficiency |
| IR @ 90V, 125°C | 5 µA max - Minimal reverse leakage at high temperature; preserves regulation stability in warm environments |
| RθJC | 6 °C/W - Thermal resistance from junction to case; enables accurate thermal modeling when mounted to heatsink |
Pinout & Package
Package: ITO-220AB - Thermally optimized plastic package with exposed metal tab (cathode-connected) for direct heatsink mounting; matte tin-plated leads compliant with J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Tab (Case) | Cathode (common) | Electrically connected to both diode cathodes; must be isolated or grounded per layout; primary thermal path to heatsink |
| Lead 1 | Anode 1 | Input terminal for first diode; used in dual-output or phase-split rectification |
| Lead 2 | Anode 2 | Input terminal for second diode; enables independent control or parallel operation with shared cathode |
Key Features
| Feature | Design Value |
|---|---|
| Common-cathode dual-diode configuration | Enables compact full-wave rectification or dual-rail output without external wiring; reduces PCB trace inductance |
| Guard ring overvoltage protection | Improves ruggedness against voltage transients and line surges without external snubbers |
| UL Recognized (E-326243) | Validates safety compliance for end-equipment certification in AC/DC adapters and industrial power supplies |
| AEC-Q101 qualified variant available | Supports automotive-grade reliability requirements including temperature cycling, HTRB, and ESD testing |
Applications
| Server Power Supply Rectification | Automotive DC/DC Converter |
|---|---|
Use Scenario: Secondary-side synchronous rectification in 48 V–12 V isolated buck-boost converters for datacenter server PSUs. IC Role / Device Role / Timing Role: Dual-anode Schottky rectifier replacing MOSFETs in high-frequency (<300 kHz) topology to minimize gate drive complexity and conduction loss. Use Value: 0.85 V VF reduces conduction loss by ~30% vs. silicon diodes, improving full-load efficiency above 94% while maintaining thermal headroom via 6 °C/W RθJC. | Use Scenario: 12 V rail generation from 48 V battery in ADAS domain controllers with strict thermal and reliability constraints. IC Role / Device Role / Timing Role: Common-cathode rectifier in dual-phase interleaved converter delivering stable 12 V output under load transients up to 150 A peak. Use Value: 150 A IFSM withstands cold-crank surges; AEC-Q101-qualified variant ensures qualification for automotive under-hood deployment. |
| Laptop Adapter Output Stage | Industrial PLC Power Module |
Use Scenario: High-density flyback converter output rectification in ultra-thin 65 W laptop adapters operating at 130 kHz. IC Role / Device Role / Timing Role: Dual-diode rectifier providing low-profile, low-loss output stage with shared cathode simplifying filter capacitor placement. Use Value: ITO-220AB package allows direct heatsink mounting on compact PCBs; 5 µA IR at 125 °C prevents output droop during sustained high-temperature operation. | Use Scenario: Auxiliary 5 V/3.3 V supply generation in programmable logic controller backplanes with wide ambient temperature range (-40 °C to +85 °C). IC Role / Device Role / Timing Role: Input-stage rectifier feeding downstream LDOs or DC/DC regulators in noise-sensitive control circuitry. Use Value: Guard ring structure suppresses avalanche-induced failures during inductive load switching; UL recognition streamlines safety approval. |
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-MBRB890CT | Same ITO-220AB package, identical 90 V VRRM and 8 A IF, but VF = 0.87 V max (vs. 0.85 V typ for MBRF890CT); RθJC = 6.5 °C/W | Marginally higher conduction loss and thermal resistance; suitable where minor efficiency trade-off is acceptable | Select for multi-source procurement where Vishay's long-term availability or logistics terms are preferred |
| ON Semiconductor MBR890CT | Identical electrical specs and package; differs in marking, date code format, and JEDEC-compliant lead finish (Pb-free, matte Sn) | No functional difference; fully interchangeable in existing designs meeting RoHS and halogen-free requirements | Choose for design-in flexibility when qualifying alternate suppliers without requalification |
Compared with MBRF890CT, VS-MBRB890CT offers slightly higher thermal resistance and forward voltage, while MBR890CT matches all key parameters and qualifies as a drop-in replacement with identical footprint and performance-making it ideal for BOM diversification without layout or thermal redesign.
Availability
MBRF890CT is available at Aetrix Electronics and suitable for switching mode power supplies, DC/DC converters, and AC adapters requiring stable component supply, consistent thermal performance, and automotive-grade reliability options.
Supply support for MBRF890CT 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 consumer markets.
The MBRF8xCT series was developed to deliver high-current, low-VF Schottky rectifiers in thermally robust packages for next-generation high-efficiency power conversion systems targeting space-constrained and thermally demanding applications.
FAQ
What is the maximum junction temperature rating for MBRF890CT?
The MBRF890CT has a maximum junction temperature (TJ MAX) of +150 °C, verified per absolute maximum ratings table in the official Taiwan Semiconductor datasheet revision J2105. This rating applies across the full operating range and enables reliable use in high-ambient environments such as enclosed power supplies or under-hood automotive modules when properly heatsinked.
Is MBRF890CT pin-compatible with MBRF8100CT?
Yes, MBRF890CT and MBRF8100CT share identical ITO-220AB package, pinout, and mechanical dimensions-including common-cathode tab and dual-anode leads-but differ only in VRRM (90 V vs. 100 V) and forward voltage (0.85 V vs. 0.85 V typ at 4 A). No PCB changes are required when substituting between these variants in designs with sufficient voltage margin.
Does MBRF890CT have AEC-Q101 qualification?
The base MBRF890CT is not AEC-Q101 qualified; however, the variant MBRF890CTH-identical in all electrical and mechanical specifications-is explicitly qualified per AEC-Q101. Customers requiring automotive-grade reliability must specify MBRF890CTH and verify compliance documentation during procurement.
What is the typical forward voltage of MBRF890CT at 8 A?
The datasheet specifies VF only at IF = 4 A (0.85 V typ, 25 °C); no typical value is published at 8 A. At full-rated current, VF increases due to resistive heating and series resistance-designers should apply derating curves and thermal models using RθJC = 6 °C/W and the 0.85 V baseline to estimate actual VF under real operating conditions.
Can MBRF890CT be used in place of a single 8 A Schottky diode?
MBRF890CT contains two independent Schottky diodes in common-cathode configuration-not a single diode-so it cannot directly replace a single-anode/single-cathode device without circuit modification. It is intended for dual-input or full-wave rectification; using only one anode requires verifying isolation and thermal balance, and unused anode must be left open or tied appropriately per design intent.
MBRF890CT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- TO-220-3 Full Pack, Isolated Tab
- Packaging:
- Tube
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 90 V
- Current - Average Rectified (Io) (per Diode):
- 8A
- Voltage - Forward (Vf) (Max) @ If:
- 950 mV @ 4 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 100 µA @ 90 V
- Operating Temperature - Junction:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- ITO-220AB
MBRF890CT FAQ
1.How can I place an order for MBRF890CT through Aetrix?
Please submit a Request for Quotation (RFQ) for MBRF890CT 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 MBRF890CT reliable?
The price and inventory of MBRF890CT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MBRF890CT is usually 5 days.
3.What payment methods are accepted for MBRF890CT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MBRF890CT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MBRF890CT?
MBRF890CT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MBRF890CT 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 MBRF890CT?
For technical support, including MBRF890CT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MBRF890CT requirements.
6.How does Aetrix verify that MBRF890CT is sourced from the original manufacturer or authorized distributors?
All MBRF890CT 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 MBRF890CT meets industry standards.
7.What is the process for return or replacement of MBRF890CT?
All MBRF890CT units undergo pre-shipment inspection (PSI). If there is an issue with MBRF890CT, 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 MBRF890CT part is unused and in its original packaging.
Return procedure for MBRF890CT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MBRF890CT Tags
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