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Diodes Incorporated MBR2045CT-G1
- Part No.:
- MBR2045CT-G1
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- TO-220-3
- Datasheet:
-
MBR2045CT-G1.pdf
- Description:
- DIODE ARR SCHOTT 45V 10A TO2203
- Quantity:
- Payment:
- Shipping:
Inventory:4,295
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Product details
Overview
MBR2045CT-G1 from Diodes Incorporated is a high-efficiency dual Schottky rectifier in TO-220-3 (2) package, rated for 45 V peak reverse voltage, 10 A average forward current per diode leg, and 0.65 V max forward voltage at +25°C. It delivers low switching losses and low noise in high-frequency switch-mode power supplies and DC-DC converters.
For engineers reviewing the MBR2045CT-G1 datasheet, MBR2045CT-G1 pinout, MBR2045CT-G1 application, or MBR2045CT-G1 equivalent, key selection criteria include dual-diode configuration, 150°C junction temperature rating, guard-ring stress protection, RoHS-compliant matte tin finish, and thermal resistance of 2.2°C/W (junction-to-case).
Technical Context
This dual common-cathode Schottky rectifier integrates two independent 45 V / 10 A diode legs sharing a single cathode terminal (Pin 2), enabling synchronous output rectification in center-tapped or dual-output topologies. Its low VF and fast recovery support high-efficiency operation above 100 kHz.
The device uses planar epitaxial construction with guard-ring passivation to suppress edge breakdown and sustain 10000 V/µs voltage slew rate. Thermal performance is optimized for mounting on heatsinks, with RθJC = 2.2°C/W and maximum TJ = +150°C under rated load conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 45 V - Maximum repetitive reverse blocking voltage per diode leg; defines safe operating range in flyback or forward converter secondary side. |
| IF(AV) per leg | 10 A - Average forward current rating per diode at TC = +139°C; supports continuous 20 A total output when used in dual-leg configuration. |
| VF (max) | 0.65 V @ 10 A, +25°C - Low conduction loss enables >92% efficiency in 12 V output rails at full load. |
| IR (max) | 0.1 mA @ 45 V, +25°C - Minimal leakage preserves regulation in standby mode and reduces no-load power consumption. |
| TJ (max) | +150°C - Enables reliable operation in thermally constrained industrial power supplies without derating below 10 A. |
| RθJC | 2.2°C/W - Confirms effective heat transfer to external heatsink; allows 11 W dissipation before reaching thermal limit at TC = +139°C. |
| IFSM | 150 A - Peak non-repetitive surge rating supports robust startup and transient overload handling in AC-DC front ends. |
Pinout & Package
MBR2045CT-G1 is housed in a TO-220-3 (2) plastic package with isolated tab (non-conductive mounting surface), 1.95 g mass, UL 94V-0 flammability rating, and matte tin–annealed copper leadframe terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (A1) | Anode Leg 1 | Independent anode connection for first Schottky diode; electrically isolated from Pin 3 and tab. |
| 2 (K) | Common Cathode | Shared cathode node for both diodes; must be connected to system ground or output return path. |
| 3 (A2) | Anode Leg 2 | Independent anode connection for second Schottky diode; fully isolated from Pin 1 and tab. |
Key Features
| Feature | Design Value |
|---|---|
| Low forward voltage | 0.65 V max @ 10 A, +25°C - Reduces conduction loss by ≥35% vs. standard silicon rectifiers at same current. |
| Guard-ring stress protection | Integrated edge termination - Prevents premature avalanche breakdown at high dv/dt, enabling stable operation up to 10000 V/µs. |
| +150°C junction rating | Rated operation to maximum TJ - Eliminates need for thermal derating in compact 50–100 W enclosed power supplies. |
| Lead-free & halogen-free | RoHS 3 compliant, <900 ppm Br/Cl, <1000 ppm Sb - Meets IPC-1752A material declaration requirements for automotive and industrial OEMs. |
| High surge capability | 150 A IFSM - Withstands 60 Hz half-sine surges during cold-start or line-dip recovery without degradation. |
Applications
| AC-DC Adapter Output Rectification | DC-DC Converter Secondary Side |
|---|---|
Use Scenario: 12 V / 5 A output stage in universal-input offline adapter with active clamp flyback topology. IC Role / Device Role / Timing Role: Dual-leg Schottky rectifier providing synchronous rectification for two output windings or parallel paths. Use Value: 0.65 V VF minimizes conduction loss, improving full-load efficiency from 87% to 91.5% versus 1N5822 alternatives. | Use Scenario: Isolated 3.3 V / 8 A output in telecom DC-DC module using forward converter with center-tapped secondary. IC Role / Device Role / Timing Role: Common-cathode dual rectifier replacing two discrete Schottkys to reduce layout area and parasitic inductance. Use Value: Shared cathode simplifies PCB routing and improves EMI by reducing loop area by 40% compared to discrete placement. |
| Industrial Power Supply Hold-Up | LED Driver Secondary Rectification |
Use Scenario: 24 V / 10 A auxiliary rail in programmable logic controller (PLC) power supply with 20 ms hold-up requirement. IC Role / Device Role / Timing Role: High-current dual rectifier delivering sustained output during AC dropout events. Use Value: 150 A IFSM rating ensures survival during repeated 100 ms brownouts without parametric shift or failure. | Use Scenario: Constant-current LED driver with 48 V output feeding 10-series white LED string in streetlight application. IC Role / Device Role / Timing Role: Low-noise output rectifier minimizing conducted EMI into sensitive analog current-sense circuitry. Use Value: Near-zero reverse recovery charge eliminates switching spikes, reducing input filter capacitor size by 30%. |
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, but 20 A total IF(AV); VF = 0.62 V @ 10 A, +25°C; TO-220AC package with conductive tab. | Conductive tab requires insulating washer; higher surge rating (200 A IFSM) suits harsher environments. | Select when higher surge margin or lower VF is prioritized and isolation from heatsink is managed externally. |
| ON Semiconductor MBR2045CT | Identical electrical specs and pinout; RoHS-compliant but not "Green" (halogen content unspecified); legacy marking format. | No halogen-free certification; may not meet latest automotive or green procurement mandates. | Select only for cost-sensitive industrial designs where halogen-free compliance is not contractually required. |
Compared with VS-20BQ040PBF and MBR2045CT, MBR2045CT-G1 uniquely combines guaranteed halogen/antimony-free construction, verified 2.2°C/W thermal resistance, and Diodes Inc.'s AEC-Q101-ready manufacturing infrastructure-making it preferred for automotive-grade power modules and medical-grade adapters requiring full material traceability.
Availability
MBR2045CT-G1 is available at Aetrix Electronics and suitable for AC-DC adapters, telecom DC-DC converters, and industrial PLC power supplies requiring stable component supply, long-term lifecycle assurance, and RoHS 3–compliant sourcing.
Supply support for MBR2045CT-G1 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, manufacturing, and sales operations across Asia, Europe, and North America.
MBR2045CT-G1 belongs to Diodes' high-efficiency power rectifier product line, engineered specifically for high-frequency, high-reliability power conversion in space-constrained industrial and computing applications.
FAQ
What is the thermal resistance from junction to case (RθJC) for MBR2045CT-G1?
The junction-to-case thermal resistance is 2.2°C/W for the TO-220-3 (2) package, measured under standard test conditions with proper heatsink mounting per Diodes' recommended pad layout. This value enables 11 W of continuous power dissipation before reaching the +150°C maximum junction temperature at +139°C case temperature.
Is MBR2045CT-G1 suitable for automotive applications?
MBR2045CT-G1 is manufactured in IATF 16949–certified facilities and supports PPAP documentation. While not pre-qualified to AEC-Q101, Diodes Incorporated offers AEC-Q101–qualified variants (e.g., MBR2045CTQ-G1) upon request. For automotive use, contact Diodes' automotive team to initiate qualification and change control processes.
How does the guard-ring structure improve reliability?
The integrated guard-ring passivation reduces electric field crowding at the silicon periphery, suppressing edge-initiated avalanche breakdown. This allows stable operation at rated VRRM even under high dv/dt transients (up to 10000 V/µs) and extends lifetime in noisy industrial environments where voltage spikes exceed 1.5× nominal bus voltage.
Can MBR2045CT-G1 replace two separate 10 A Schottky diodes?
Yes-its dual common-cathode configuration (A1–K–A2) directly replaces two discrete 10 A Schottky diodes sharing a common output node. This reduces PCB area by ~35%, lowers parasitic inductance in high-frequency paths, and eliminates mismatch in forward voltage between channels, improving current sharing accuracy in parallel-wound transformer secondaries.
MBR2045CT-G1 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:
- 640 mV @ 10 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 100 µA @ 45 V
- Operating Temperature - Junction:
- -55°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220-3
MBR2045CT-G1 FAQ
1.How can I place an order for MBR2045CT-G1 through Aetrix?
Please submit a Request for Quotation (RFQ) for MBR2045CT-G1 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-G1 reliable?
The price and inventory of MBR2045CT-G1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MBR2045CT-G1 is usually 5 days.
3.What payment methods are accepted for MBR2045CT-G1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MBR2045CT-G1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MBR2045CT-G1?
MBR2045CT-G1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MBR2045CT-G1 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-G1?
For technical support, including MBR2045CT-G1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MBR2045CT-G1 requirements.
6.How does Aetrix verify that MBR2045CT-G1 is sourced from the original manufacturer or authorized distributors?
All MBR2045CT-G1 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-G1 meets industry standards.
7.What is the process for return or replacement of MBR2045CT-G1?
All MBR2045CT-G1 units undergo pre-shipment inspection (PSI). If there is an issue with MBR2045CT-G1, 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-G1 part is unused and in its original packaging.
Return procedure for MBR2045CT-G1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MBR2045CT-G1 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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