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Diodes Incorporated MBR2045CTF-E1
- Part No.:
- MBR2045CTF-E1
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- TO-220-3 Full Pack
- Datasheet:
-
MBR2045CTF-E1.pdf
- Description:
- DIODE ARR SCHOT 45V 10A TO220F3
- Quantity:
- Payment:
- Shipping:
Inventory:9,914
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Product details
Overview
MBR2045CTF-E1 from Diodes Incorporated is a high-efficiency dual common-cathode Schottky rectifier in TO-220F-3 package, rated for 45 V reverse voltage, 10 A per diode leg (20 A total), 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 MBR2045CTF-E1 datasheet, MBR2045CTF-E1 pinout, MBR2045CTF-E1 application, or MBR2045CTF-E1 equivalent, key selection criteria include its 150°C junction temperature rating, 150 A non-repetitive surge capability, guard-ring stress protection, RoHS-compliant lead-free finish, and thermal resistance of 4.5°C/W (junction-to-case).
Technical Context
This dual Schottky rectifier integrates two independent anode terminals (A1, A2) sharing a common cathode (K), enabling synchronous or interleaved output rectification in dual-rail or center-tapped topologies. Its low VF and fast recovery eliminate minority-carrier storage delay, making it suitable for >100 kHz operation without snubbers.
The device uses planar epitaxial construction with guard-ring passivation to suppress edge breakdown under transient overvoltage. Thermal performance is optimized for mounting on heatsinks via the insulated TO-220F-3 case, delivering 4.5°C/W RθJC and supporting continuous 10 A per leg at TC = +137°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 input range in buck, flyback, or LLC secondary-side rectification. |
| IF(AV) | 10 A per leg - Continuous average forward current per anode at TC = +139°C; supports 20 A total dual-leg output in well-heatsinked SMPS designs. |
| VF (max) | 0.65 V @ 10 A, +25°C - Low conduction loss enables >92% efficiency in 12 V–24 V output stages; drops to 0.57 V at +125°C. |
| IR (max) | 0.1 mA @ 45 V, +25°C - Ultra-low leakage preserves light-load efficiency and minimizes standby power in energy-sensitive applications. |
| IFSM | 150 A - Non-repetitive surge rating allows robust handling of inrush and short-circuit transients without bond-wire fusing. |
| TJ (max) | +150°C - Extended junction temperature enables operation in compact, sealed, or high-ambient environments without derating. |
| RθJC | 4.5°C/W - Junction-to-case thermal resistance for TO-220F-3 package; determines minimum heatsink requirement for thermal design. |
Pinout & Package
MBR2045CTF-E1 is housed in TO-220F-3 (insulated flange) package with three leads: Pin 1 = Anode 1 (A1), Pin 2 = Cathode (K), Pin 3 = Anode 2 (A2). The plastic body provides electrical isolation between the metal tab and internal die, enabling direct heatsink mounting without insulating hardware.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (A1) | Anode of first Schottky diode | Connects to input rail or transformer secondary winding leg 1; polarity-sensitive-reverse connection causes catastrophic failure. |
| Pin 2 (K) | Common cathode node | Output node shared by both diodes; connects to filter capacitor and load; must be low-inductance path for high-frequency ripple current. |
| Pin 3 (A2) | Anode of second Schottky diode | Connects to input rail or transformer secondary winding leg 2; enables dual-phase or center-tapped rectification topologies. |
Key Features
| Feature | Design Value |
|---|---|
| Low forward voltage | 0.65 V max @ 10 A, +25°C - Reduces conduction loss by ~30% vs. standard silicon rectifiers, directly improving converter efficiency and thermal margin. |
| Guard-ring stress protection | Integrated edge termination structure - Prevents premature avalanche breakdown at high dv/dt (10,000 V/µs), enhancing reliability in fast-switching circuits. |
| High surge current capability | 150 A IFSM - Withstands repeated cold-start surges and fault currents without degradation, eliminating need for external fusing in many industrial PSUs. |
| RoHS-compliant & "Green" packaging | Lead-free matte tin finish, halogen/antimony-free molding compound - Meets IPC-1752A material declaration requirements and EU environmental compliance mandates. |
Applications
| Server Power Supply Rectification | Industrial DC-DC Converter Output |
|---|---|
Use Scenario: Secondary-side rectification in 48 V input, 12 V/20 A output server PSU using active clamp forward topology. IC Role / Device Role / Timing Role: Dual-anode Schottky rectifier providing synchronous rectification for two parallel output phases. Use Value: 0.65 V VF reduces conduction loss by 1.8 W per leg vs. Si diode, lowering heatsink size and improving system efficiency from 91% to 92.7%. | Use Scenario: Output rectification in 24 V input, 5 V/15 A isolated DC-DC module for PLC I/O power rails. IC Role / Device Role / Timing Role: Common-cathode dual Schottky enabling compact layout with shared output filtering and reduced PCB trace inductance. Use Value: 150°C TJ rating allows full 10 A/leg operation at 70°C ambient without derating, ensuring stable output under industrial temperature cycling. |
| Telecom Brick Power Module | LED Driver Secondary Rectification |
Use Scenario: High-density 54 V input telecom brick supplying ±12 V rails using center-tapped transformer and dual-output rectification. IC Role / Device Role / Timing Role: Dual-anode configuration replaces two discrete Schottkys, reducing component count and parasitic inductance in high-frequency (>300 kHz) operation. Use Value: 10,000 V/µs dv/dt rating prevents false turn-on during fast switching edges, eliminating need for gate clamping in adjacent MOSFETs. | Use Scenario: Constant-current LED driver with 36 V output, driving 10-series white LEDs at 700 mA. IC Role / Device Role / Timing Role: Output rectifier in flyback-derived constant-current circuit, where low IR ensures minimal no-load power loss. Use Value: 0.1 mA max reverse leakage at +25°C maintains <10 mW standby dissipation, meeting Energy Star v2.0 requirements for lighting controls. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STPS2045C | Same 45 V / 2×10 A rating, but TO-220AC package (non-insulated flange); RθJC = 2.5°C/W; VF = 0.63 V @ 10 A. | Requires insulating washer when mounted to heatsink; better thermal performance but higher assembly cost and risk of shorts. | Select when thermal budget is tight and isolation can be managed mechanically; avoid in safety-isolated designs. |
| VB2045-G | 45 V / 2×10 A, TO-220F-3 package, but VF = 0.68 V @ 10 A and IR = 0.2 mA @ +25°C; RoHS-compliant but not "Green" certified. | Slightly higher conduction loss and leakage; lacks halogen/antimony-free certification required for some EU industrial equipment. | Select only for cost-sensitive, non-regulated markets; verify compliance documentation before use in CE-marked systems. |
Compared with STPS2045C and VB2045-G, MBR2045CTF-E1 uniquely combines TO-220F-3 insulation, 0.65 V VF, 0.1 mA IR, and full "Green" compliance-making it optimal for space-constrained, safety-critical, and environmentally regulated industrial power supplies.
Availability
MBR2045CTF-E1 is available at Aetrix Electronics and suitable for server power supplies, industrial DC-DC converters, and telecom brick modules requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.
Supply support for MBR2045CTF-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, manufacturing, and sales operations across Asia, Europe, and North America.
MBR2045CTF-E1 belongs to Diodes' high-efficiency Schottky rectifier product line, engineered specifically for high-frequency, high-efficiency power conversion in computing, industrial, and communications infrastructure.
FAQ
What is the maximum operating temperature for MBR2045CTF-E1?
The MBR2045CTF-E1 has a maximum junction temperature (TJ) of +150°C and is rated for continuous operation at +137°C case temperature per diode leg. Its TO-220F-3 package provides 4.5°C/W junction-to-case thermal resistance, enabling reliable performance in enclosed or high-ambient environments when properly heatsinked.
Is MBR2045CTF-E1 pin-compatible with MBR2045CT-E1?
Yes-both share identical pinout (A1-K-A2) and mechanical footprint, but MBR2045CTF-E1 uses an insulated flange (TO-220F-3) while MBR2045CT-E1 uses non-insulated TO-220-3. Electrical function is identical; the F variant eliminates need for insulating hardware when mounting to grounded heatsinks.
Does MBR2045CTF-E1 require a heatsink in all applications?
A heatsink is required for continuous operation above ~4 A per leg at +70°C ambient. At full 10 A/leg, thermal calculations show junction temperature exceeds 150°C without heatsinking. Diodes' datasheet specifies mounting on a heatsink with minimum pad layout per their application note AN-2001 to achieve rated current.
What does the "E1" suffix indicate in MBR2045CTF-E1?
The "E1" suffix denotes RoHS-compliant, lead-free finish per EU Directive 2011/65/EU (RoHS 2), with matte tin annealed over copper leadframe. It is distinct from "G1", which adds halogen/antimony-free "Green" certification. Both meet RoHS, but E1 does not guarantee full halogen-free status.
MBR2045CTF-E1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-220-3 Full Pack
- 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-220F-3
MBR2045CTF-E1 FAQ
1.How can I place an order for MBR2045CTF-E1 through Aetrix?
Please submit a Request for Quotation (RFQ) for MBR2045CTF-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 MBR2045CTF-E1 reliable?
The price and inventory of MBR2045CTF-E1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MBR2045CTF-E1 is usually 5 days.
3.What payment methods are accepted for MBR2045CTF-E1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MBR2045CTF-E1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MBR2045CTF-E1?
MBR2045CTF-E1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MBR2045CTF-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 MBR2045CTF-E1?
For technical support, including MBR2045CTF-E1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MBR2045CTF-E1 requirements.
6.How does Aetrix verify that MBR2045CTF-E1 is sourced from the original manufacturer or authorized distributors?
All MBR2045CTF-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 MBR2045CTF-E1 meets industry standards.
7.What is the process for return or replacement of MBR2045CTF-E1?
All MBR2045CTF-E1 units undergo pre-shipment inspection (PSI). If there is an issue with MBR2045CTF-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 MBR2045CTF-E1 part is unused and in its original packaging.
Return procedure for MBR2045CTF-E1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MBR2045CTF-E1 Tags
-
BAV99-7-F
Diodes Incorporated
-
BAT54C-7-F
Diodes Incorporated
-
BAV99,215
Nexperia USA Inc.
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BAT54SLT1G
onsemi
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BAV70LT1G
onsemi
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BAT54CLT1G
onsemi
-
BAT54S-7-F
Diodes Incorporated
-
BAV99LT1G
onsemi
-
BAT54S,215
Nexperia USA Inc.
-
BAS40-04LT1G
onsemi
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MMBD1503-TP
Micro Commercial Co
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BAV99WT1G
onsemi
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