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Diodes Incorporated MBR2045CT-E1
- Part No.:
- MBR2045CT-E1
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- TO-220-3
- Datasheet:
-
MBR2045CT-E1.pdf
- Description:
- DIODE ARR SCHOTT 45V 10A TO2203
- Quantity:
- Payment:
- Shipping:
Inventory:5,122
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Product details
Overview
MBR2045CT-E1 from Diodes Incorporated is a high-efficiency dual common-cathode Schottky rectifier in TO-220-3 package, rated for 45 V reverse voltage, 10 A per diode leg (20 A total), and 0.65 V max forward voltage at 10 A and +25°C. It delivers low switching losses and low noise in high-frequency switch-mode power supplies.
For engineers reviewing the MBR2045CT-E1 datasheet, MBR2045CT-E1 pinout, MBR2045CT-E1 application, or MBR2045CT-E1 equivalent, key selection criteria include its dual-diode configuration, 150°C junction temperature rating, 150 A non-repetitive surge capability, RoHS-compliant lead-free finish, and thermal resistance of 2.2°C/W (junction-to-case).
Technical Context
This device integrates two independent Schottky diodes sharing a common cathode terminal, enabling synchronous or interleaved output rectification in dual-rail or center-tapped topologies. Its guard-ring structure enhances ruggedness against transient overvoltage stress.
Designed for medium-voltage, high-frequency operation, it avoids minority-carrier storage delay-eliminating reverse recovery charge (Qrr ≈ 0) and associated switching losses. The TO-220-3 package provides direct heatsink mounting with low RθJC (2.2°C/W), supporting continuous 10 A per diode at TC ≤ +139°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 45 V - Maximum repetitive reverse blocking voltage per diode leg; defines safe DC/peak AC operating limit in output rectifiers. |
| IF(AV) per diode | 10 A - Average forward current rating per diode at TC = +139°C; enables compact 20 A dual-output designs with shared thermal path. |
| VF (max) | 0.65 V @ 10 A, +25°C - Low conduction loss directly reduces power dissipation and improves efficiency in 12–24 V SMPS outputs. |
| IR (max) | 0.1 mA @ 45 V, +25°C - Ultra-low leakage preserves regulation in standby and light-load conditions. |
| TJ (max) | +150°C - Enables reliable operation in thermally constrained industrial and telecom power enclosures without derating. |
| RθJC | 2.2°C/W - Confirmed thermal resistance from junction to case; allows accurate heatsink sizing when mounted with thermal compound. |
| IFSM | 150 A - Non-repetitive surge rating supports inrush tolerance during cold-start or fault recovery in AC-DC adapters. |
Pinout & Package
MBR2045CT-E1 uses the TO-220-3 (2) package: insulated plastic case with three leads, tab connected to cathode (K), and standard through-hole mounting. Thermal performance is optimized via metal tab contact to heatsink.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (A1) | Anode of Diode 1 | Input terminal for first rectifier path; electrically isolated from A2 and K; accepts up to 10 A average forward current. |
| 2 (K) | Common Cathode | Shared output node for both diodes; must be thermally coupled to heatsink; carries full 20 A combined forward current. |
| 3 (A2) | Anode of Diode 2 | Input terminal for second rectifier path; symmetrical to A1; enables dual-output or phase-split rectification. |
Key Features
| Feature | Design Value |
|---|---|
| Low VF (0.65 V) | Reduces conduction loss by >30% vs. comparable 45 V silicon rectifiers, directly improving 12 V output efficiency in 50–200 W SMPS. |
| Guard-ring protection | Prevents edge breakdown under high dv/dt (10,000 V/µs), enhancing reliability in fast-switching flyback and LLC converters. |
| +150°C TJ rating | Allows uninterrupted operation in sealed industrial power modules where ambient exceeds +85°C and airflow is limited. |
| RoHS & "Green" compliant | Meets EU RoHS 2 and halogen/antimony-free requirements (<900 ppm Br/Cl, <1000 ppm Sb); suitable for eco-sensitive consumer and medical end equipment. |
Applications
| Server VRM Output Rectification | Industrial AC-DC Adapter |
|---|---|
Use Scenario: Dual-phase 12 V output stage in server voltage regulator modules handling transient loads up to 100 A. IC Role / Device Role / Timing Role: Dual common-cathode Schottky rectifier providing parallel low-loss conduction paths with shared thermal management. Use Value: Eliminates reverse recovery loss, enabling >94% efficiency at 50–100 kHz switching while maintaining <70°C case temperature under full load. | Use Scenario: 24 V/10 A open-frame industrial power supply with EN 62477-1 safety compliance. IC Role / Device Role / Timing Role: Primary output rectifier for dual-rail secondary winding, leveraging common-cathode topology to simplify PCB layout and reduce EMI filter size. Use Value: 0.1 mA max IR at +25°C ensures stable no-load regulation; TO-220-3 mechanical robustness supports vibration-prone factory automation environments. |
| Telecom DC-DC Brick | Medical Imaging Power Module |
Use Scenario: 48 V input, 5 V/20 A intermediate bus converter in telecom base station power shelf. IC Role / Device Role / Timing Role: High-frequency synchronous rectifier replacement in forward topology, operating at 250 kHz with zero Qrr. Use Value: 150 A IFSM withstands hot-swap transients; 2.2°C/W RθJC enables passive cooling in space-constrained 1U chassis. | Use Scenario: Isolated 24 V/5 A auxiliary supply in MRI gradient amplifier subsystem requiring low EMI and long-term reliability. IC Role / Device Role / Timing Role: Output rectifier in resonant LLC converter, where low-noise switching minimizes interference with analog sensor front-ends. Use Value: Guard-ring design prevents failure under radiated ESD events (>8 kV HBM); "Green" packaging satisfies IEC 60601-1 environmental clauses. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-20BQ040PBF | Same 45 V VRRM, 10 A per diode, but TO-220AC package (non-isolated tab); RθJC = 3.0°C/W. | Lacks electrical isolation between tab and cathode; requires insulating washer for heatsink mounting. | Select when cost sensitivity outweighs isolation need and thermal margin permits higher RθJC. |
| ON Semiconductor MBR2045CT | Identical specs and TO-220-3 package, but legacy RoHS (not "Green"); halogen content not certified. | Not compliant with latest eco-regulations (e.g., JEITA EG-800); may face import restrictions in EU medical markets. | Choose only for legacy redesigns where "Green" compliance is not mandated. |
Compared with VS-20BQ040PBF and MBR2045CT, MBR2045CT-E1 uniquely combines electrical isolation, 2.2°C/W thermal performance, and halogen/antimony-free compliance-making it optimal for new designs targeting industrial safety, thermal density, and global regulatory acceptance.
Availability
MBR2045CT-E1 is available at Aetrix Electronics and suitable for server VRMs, industrial AC-DC adapters, and telecom DC-DC bricks requiring stable component supply, long-lifecycle support, and RoHS-compliant sourcing.
Supply support for MBR2045CT-E1 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design and manufacturing operations across Asia and the US.
MBR2045CT-E1 belongs to Diodes' high-efficiency Schottky rectifier product line, engineered specifically for high-frequency, medium-voltage power conversion where low VF, zero Qrr, and rugged thermal performance are critical.
FAQ
What is the maximum allowable case temperature for continuous operation?
The MBR2045CT-E1 supports continuous 10 A per diode operation at TC = +139°C, verified per datasheet Figure 4. Exceeding this temperature requires derating per the IF(AV) vs. TC curve; at TC = +100°C, rating drops to ~13.5 A total (6.75 A per diode). Thermal design must maintain TC ≤ +139°C under worst-case ambient and airflow conditions.
Is the TO-220-3 (2) package electrically isolated?
Yes-the TO-220-3 (2) variant used in MBR2045CT-E1 features an insulated plastic case where the metal tab is internally connected only to the common cathode (Pin 2) and is not shorted to any anode. This allows direct heatsink mounting without electrical isolation hardware, unlike non-isolated TO-220AC packages.
How does the guard-ring structure improve reliability?
The integrated guard-ring mitigates edge electric field crowding during high dv/dt transients, preventing premature avalanche breakdown at the die periphery. This extends operational life under repetitive 10,000 V/µs switching stress-common in LLC and active-clamp forward converters-and improves robustness against ESD events (>8 kV HBM).
Can MBR2045CT-E1 replace a single 20 A Schottky in a center-tapped transformer design?
No-it is a dual-diode device with separate anodes (A1, A2) and shared cathode (K), making it ideal for center-tapped configurations. However, it cannot substitute a single-anode, single-cathode 20 A Schottky because its internal structure requires two independent input paths; using only one anode would halve usable current capacity and unbalance thermal distribution.
MBR2045CT-E1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-220-3
- Packaging:
- Tube
- Product Status:
- Obsolete
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 45 V
- Current - Average Rectified (Io) (per Diode):
- 10A
- Voltage - Forward (Vf) (Max) @ If:
- 650 mV @ 10 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 100 µA @ 45 V
- Operating Temperature - Junction:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220-3
MBR2045CT-E1 FAQ
1.How can I place an order for MBR2045CT-E1 through Aetrix?
Please submit a Request for Quotation (RFQ) for MBR2045CT-E1 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 MBR2045CT-E1 reliable?
The price and inventory of MBR2045CT-E1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MBR2045CT-E1 is usually 5 days.
3.What payment methods are accepted for MBR2045CT-E1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MBR2045CT-E1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MBR2045CT-E1?
MBR2045CT-E1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MBR2045CT-E1 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 MBR2045CT-E1?
For technical support, including MBR2045CT-E1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MBR2045CT-E1 requirements.
6.How does Aetrix verify that MBR2045CT-E1 is sourced from the original manufacturer or authorized distributors?
All MBR2045CT-E1 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 MBR2045CT-E1 meets industry standards.
7.What is the process for return or replacement of MBR2045CT-E1?
All MBR2045CT-E1 units undergo pre-shipment inspection (PSI). If there is an issue with MBR2045CT-E1, 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 MBR2045CT-E1 part is unused and in its original packaging.
Return procedure for MBR2045CT-E1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MBR2045CT-E1 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
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