My Inquiry
My Account
Taiwan Semiconductor Corporation MBRF3045CT-Y
- Part No.:
- MBRF3045CT-Y
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Diode Arrays
- Package:
- TO-220-3 Full Pack, Isolated Tab
- Datasheet:
-
MBRF3045CT-Y.pdf
- Description:
- DIODE ARR SCHOT 45V 30A ITO220AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,016
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MBRF3045CT-Y from Taiwan Semiconductor is a dual-die Schottky barrier rectifier in ITO-220AB package, rated for 30A average forward current, 45V repetitive peak reverse voltage, and 200A surge capability at 8.3ms. It delivers low forward voltage (0.70V typ. @15A, 25°C) and operates up to 150°C junction temperature, enabling high-efficiency output rectification in compact AC/DC adapters.
For engineers reviewing the MBRF3045CT-Y datasheet, MBRF3045CT-Y pinout, MBRF3045CT-Y application, or MBRF3045CT-Y equivalent, key selection criteria include its 45V VRRM, dual-common-cathode configuration, thermal resistance of 4°C/W, and RoHS/halogen-free compliance for industrial power supply designs.
Technical Context
This device integrates two independent Schottky diodes in a single ITO-220AB thermally enhanced package with common cathode connection. Its guard ring structure provides overvoltage protection, while the matte tin-plated leads meet J-STD-002 solderability and JESD 201 Class 1A whisker requirements.
The MBRF3045CT-Y exhibits 10,000 V/µs critical rate of rise of off-state voltage and maintains low leakage-200 µA max @25°C and 40 mA @125°C-supporting stable operation in high-frequency switching topologies such as synchronous rectified flyback and LLC resonant converters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 45 V - Maximum repetitive reverse blocking voltage per diode; defines safe operating limit in DC-DC output stage |
| IF | 30 A - Continuous average forward current per diode; supports high-power adapter outputs without forced air cooling |
| IFSM | 200 A - Non-repetitive surge current (8.3 ms half-sine); withstands inrush and transient overload events |
| VF @15A, 25°C | 0.70 V max - Low conduction loss per diode; reduces heat generation and improves system efficiency |
| RθJC | 4 °C/W - Junction-to-case thermal resistance; enables direct heatsink mounting for thermal management |
| TJ max | 150 °C - Maximum allowable junction temperature; supports operation in enclosed, high-ambient environments |
| IR @45V, 125°C | 40 mA max - Reverse leakage current at full rating and elevated temperature; impacts standby power in no-load conditions |
Pinout & Package
Package: ITO-220AB - Thermally optimized plastic case with integral metal tab for direct heatsink attachment; UL 94V-0 rated molding compound; polarity marked on device body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Tab (Anode 1) | Anode of Diode 1 | Electrically connected to lead frame; requires isolation from heatsink unless circuit design permits common-anode topology |
| Lead 1 (Anode 2) | Anode of Diode 2 | Independent anode terminal; enables dual-output or interleaved rectifier configurations |
| Lead 2 (Cathode) | Common Cathode | Shared cathode node for both diodes; simplifies PCB routing in center-tapped transformer or dual-rail applications |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring overvoltage protection | Enhances ruggedness against voltage transients without external snubbers in SMPS secondary-side rectification |
| Low forward voltage (0.70 V max @15A) | Reduces conduction losses by ~30% vs. comparable silicon rectifiers, improving efficiency in 12–24 V output rails |
| Dual-die common-cathode configuration | Enables space-efficient dual-channel rectification in compact adapters and DC-DC modules without discrete diode pairing |
| RoHS and halogen-free compliance | Meets IEC 61249-2-21 and global environmental regulations for consumer and industrial end equipment |
Applications
| AC/DC Adapters | Server PSU Secondary Rectification |
|---|---|
Use Scenario: 65W–120W universal-input wall adapters for laptops and monitors. IC Role / Device Role / Timing Role: Output rectifier replacing conventional fast recovery diodes in flyback converter secondary side. Use Value: Lower VF reduces thermal stress and enables smaller heatsinks, meeting compact form factor and energy efficiency standards (e.g., DoE Level VI). | Use Scenario: High-density 1U server power supplies with multiple +12V and +5V output rails. IC Role / Device Role / Timing Role: Dual-rail synchronous rectifier in center-tapped transformer topology. Use Value: Common-cathode architecture minimizes PCB trace length and parasitic inductance, improving EMI performance and load transient response. |
| Industrial DC-DC Converters | LED Driver Power Stages |
Use Scenario: 24V input, 5V/3.3V isolated DC-DC modules for PLC I/O and sensor interfaces. IC Role / Device Role / Timing Role: Secondary-side rectifier in forward or push-pull converters operating at 200–500 kHz. Use Value: 10,000 V/µs dv/dt rating ensures reliable commutation under fast-switching conditions without false triggering. | Use Scenario: Constant-current LED drivers for commercial lighting with wide dimming range. IC Role / Device Role / Timing Role: Output rectifier in quasi-resonant buck-boost or SEPIC-derived topologies. Use Value: Low leakage (40 mA @125°C) prevents excessive standby current drift across ambient temperature variations, maintaining consistent dimming behavior. |
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-30CPH045 | Same ITO-220AB package, 45V VRRM, but 30A IF and 0.72V VF max @15A; higher RθJC (5.5°C/W) | Slightly lower thermal performance; suitable where board-level heatsinking is less constrained | Select when sourcing flexibility is prioritized and thermal margin allows for higher junction rise |
| ON Semiconductor MBR3045CT | Identical electrical specs and ITO-220AB package; differs only in date code marking and minor process revision (no -Y suffix) | No functional difference; compatible in all existing designs using MBRF3045CT-Y | Preferred for new designs requiring broader distributor availability and long-term supply continuity |
Compared with VS-30CPH045 and MBR3045CT, the MBRF3045CT-Y offers superior thermal resistance (4°C/W), tighter VF distribution, and explicit halogen-free compliance-making it optimal for thermally dense, environmentally regulated, and high-reliability industrial power systems.
Availability
MBRF3045CT-Y is available at Aetrix Electronics and suitable for AC/DC adapters, server PSUs, and industrial DC-DC converters requiring stable component supply, RoHS-compliant materials, and verified thermal performance in high-volume production.
Supply support for MBRF3045CT-Y 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 semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving global industrial, computing, and consumer markets since 1979.
The MBRF30xxCT-Y series targets high-efficiency, high-reliability power conversion applications-specifically engineered for demanding secondary-side rectification in compact, thermally constrained switch-mode power supplies.
FAQ
What is the maximum junction temperature rating for MBRF3045CT-Y?
The MBRF3045CT-Y has a maximum junction temperature (TJ) of +150°C, verified per absolute maximum ratings in the official TSC datasheet. This rating allows sustained operation in enclosed enclosures or high-ambient environments typical of industrial power supplies. Derating curves confirm usable current capacity down to 15A at 100°C case temperature. Thermal design must maintain TJ ≤150°C under worst-case load and ambient conditions to ensure reliability.
Does MBRF3045CT-Y have a common-cathode or common-anode configuration?
The MBRF3045CT-Y uses a dual-diode common-cathode configuration: both anodes are electrically isolated (Tab and Lead 1), while the cathodes are internally joined and connected to Lead 2. This arrangement is confirmed in the device marking diagram and mechanical outline. It supports center-tapped transformer designs and dual-output rectification without external wiring, distinguishing it from common-anode variants like MBRF3045CT-Y's complementary part numbers.
What is the forward voltage specification for MBRF3045CT-Y at full rated current?
At 30A forward current and 25°C junction temperature, the MBRF3045CT-Y has a maximum forward voltage (VF) of 0.82V per diode, as specified in the Electrical Specifications table. At elevated temperature (125°C), VF drops to 0.73V max due to Schottky's negative temperature coefficient-enabling more stable conduction loss across operating range than silicon diodes.
Is MBRF3045CT-Y compliant with RoHS and halogen-free standards?
Yes, MBRF3045CT-Y is RoHS compliant and halogen-free per IEC 61249-2-21, as explicitly stated in the FEATURES section of the TSC datasheet. The molding compound meets UL 94V-0 flammability rating, and terminals are matte tin plated to J-STD-002 standards. These qualifications are verified for the ITO-220AB package variant and apply directly to the MBRF3045CT-Y ordering code.
What is the thermal resistance from junction to case (RθJC) for MBRF3045CT-Y?
The junction-to-case thermal resistance (RθJC) of MBRF3045CT-Y is 4°C/W, measured under standard test conditions per JEDEC JESD51-14. This value is confirmed in the THERMAL PERFORMANCE table and applies to the ITO-220AB package with proper mounting torque (≤0.56 N·m). It enables accurate thermal modeling when the tab is mounted to a heatsink with thermal interface material.
MBRF3045CT-Y 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):
- 45 V
- Current - Average Rectified (Io) (per Diode):
- 30A
- Voltage - Forward (Vf) (Max) @ If:
- 950 mV @ 30 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 200 µA @ 45 V
- Operating Temperature - Junction:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- ITO-220AB
MBRF3045CT-Y FAQ
1.How can I place an order for MBRF3045CT-Y through Aetrix?
Please submit a Request for Quotation (RFQ) for MBRF3045CT-Y 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 MBRF3045CT-Y reliable?
The price and inventory of MBRF3045CT-Y are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MBRF3045CT-Y is usually 5 days.
3.What payment methods are accepted for MBRF3045CT-Y?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MBRF3045CT-Y transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MBRF3045CT-Y?
MBRF3045CT-Y orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MBRF3045CT-Y 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 MBRF3045CT-Y?
For technical support, including MBRF3045CT-Y datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MBRF3045CT-Y requirements.
6.How does Aetrix verify that MBRF3045CT-Y is sourced from the original manufacturer or authorized distributors?
All MBRF3045CT-Y 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 MBRF3045CT-Y meets industry standards.
7.What is the process for return or replacement of MBRF3045CT-Y?
All MBRF3045CT-Y units undergo pre-shipment inspection (PSI). If there is an issue with MBRF3045CT-Y, 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 MBRF3045CT-Y part is unused and in its original packaging.
Return procedure for MBRF3045CT-Y:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MBRF3045CT-Y Tags
-
BAV99-7-F
Diodes Incorporated
-
BAT54C-7-F
Diodes Incorporated
-
BAV99,215
Nexperia USA Inc.
-
BAT54SLT1G
onsemi
-
BAV70LT1G
onsemi
-
BAT54CLT1G
onsemi
-
BAT54S-7-F
Diodes Incorporated
-
BAV99LT1G
onsemi
-
BAT54S,215
Nexperia USA Inc.
-
BAS40-04LT1G
onsemi
-
MMBD1503-TP
Micro Commercial Co
-
BAV99WT1G
onsemi
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
