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Vishay General Semiconductor - Diodes Division MBRB3045CT-E3/45
- Part No.:
- MBRB3045CT-E3/45
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Diode Arrays
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
MBRB3045CT-E3/45.pdf
- Description:
- DIODE ARR SCHOTT 45V 15A TO263AB
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MBRB3045CT-E3/45 from Vishay General Semiconductor is a dual common-cathode Schottky rectifier in D2PAK (TO-263AB) package, rated for 45 V repetitive peak reverse voltage, 30 A total average forward current (15 A per diode), and 200 A peak forward surge current. It delivers low 0.60 V forward voltage at 20 A and 125 °C, enabling high-efficiency operation in DC/DC converters and switching power supplies.
For engineers reviewing the MBRB3045CT-E3/45 datasheet, MBRB3045CT-E3/45 pinout, MBRB3045CT-E3/45 application, or MBRB3045CT-E3/45 equivalent, key selection criteria include its AEC-Q101 qualification, 1.5 °C/W thermal resistance per diode, 10,000 V/μs dV/dt rating, and suitability for automotive-grade freewheeling and polarity protection circuits requiring robust surge handling and low conduction loss.
Technical Context
This dual-diode Schottky rectifier integrates two independent anodes sharing a common cathode terminal, supporting synchronous rectification and bidirectional blocking in half-bridge or dual-output topologies. Its guardring structure provides overvoltage protection, while the low VF and high IFSM enable efficient energy recovery in high-frequency switching applications up to several hundred kHz.
The device operates across –65 °C to +150 °C junction temperature range and meets J-STD-020 MSL Level 1 (245 °C peak reflow). Its D2PAK package features matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards, and passes JESD 201 Class 1A whisker testing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 45 V - Maximum repetitive reverse blocking capability without breakdown |
| IF(AV) total | 30 A - Total average forward current across both diodes at TC = 100 °C |
| VF @ 20 A, 125 °C | 0.60 V - Low conduction loss enabling >92 % efficiency in 12 V output DC/DC stages |
| IFSM | 200 A - Withstands short-duration inrush and fault currents in power supply startup |
| RTJC per diode | 1.5 °C/W - Enables effective heat dissipation into PCB copper when mounted on ≥1 in² 2-oz copper pad |
| dV/dt | 10,000 V/μs - Supports fast-switching GaN/FET-based topologies without false triggering |
| TJ max. | +150 °C - Allows operation in under-hood automotive environments with minimal derating |
Pinout & Package
D2PAK (TO-263AB) surface-mount package with isolated heatsink tab (pin 2), two anode terminals (pins 1 and 3), and shared cathode connected to the metal tab (pin 2). The tab serves as the common cathode and primary thermal path.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode 1 | Input terminal for first diode leg; connects to high-side switch node in synchronous buck |
| Pin 2 | Common Cathode / Heatsink Tab | Shared cathode output and primary thermal interface; must be soldered to large copper pour |
| Pin 3 | Anode 2 | Input terminal for second diode leg; used for dual-output or complementary rectification |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive powertrain and body electronics per stress test requirements |
| Guardring overvoltage protection | Prevents premature edge breakdown during transient voltage spikes in inductive loads |
| Low VF at high temperature | 0.60 V at 20 A and 125 °C ensures stable conduction loss across full operating range |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking prior to assembly |
| 100 % lead (Pb)-free and RoHS-compliant | Meets global environmental compliance mandates without performance trade-offs |
Applications
| Automotive DC/DC Converter | Industrial SMPS Secondary Rectification |
|---|---|
Use Scenario: 48 V–12 V bidirectional DC/DC converter in 48 V mild hybrid vehicles. IC Role / Device Role / Timing Role: Dual-leg synchronous rectifier replacing MOSFETs in low-side position; common cathode simplifies gate drive routing. Use Value: 0.60 V VF at 125 °C reduces conduction loss by ~35 % vs. silicon diodes, improving system efficiency and thermal margin. |
Use Scenario: Secondary-side rectification in 24 V industrial switching power supply with dual outputs. IC Role / Device Role / Timing Role: Dual-anode Schottky providing independent rectification paths for +24 V and +5 V rails. Use Value: Shared cathode and low IR enable tight cross-regulation and <1.5 mV/mA load regulation drift. |
| USB-C PD Fast Charging Adapter | Polarity Protection Module |
Use Scenario: High-current secondary rectification in 100 W USB-C PD adapter with GaN primary. IC Role / Device Role / Timing Role: Low-loss output rectifier handling up to 5 A per leg at >200 kHz switching frequency. Use Value: 10,000 V/μs dV/dt rating prevents false turn-on during fast primary-side transitions, ensuring clean output waveform. |
Use Scenario: Reverse-voltage protection for 24 V PLC I/O modules exposed to field wiring errors. IC Role / Device Role / Timing Role: Common-cathode configuration enables single-device dual-rail protection without external OR-ing logic. Use Value: 200 A IFSM withstands accidental 12 V battery reverse connection with fuseless survivability up to 100 ms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STPS3045CGY | Same 45 V VRRM, 30 A IF(AV), but TO-220AC package; RTJC = 2.0 °C/W (vs. 1.5 °C/W) | Limited to lower-power industrial SMPS due to higher thermal resistance; not AEC-Q101 qualified | Select when cost-sensitive non-automotive designs prioritize tube packaging over thermal performance |
| ON Semi MBR3045CT | Identical electrical specs but TO-220AB package; no AEC-Q101 qualification; VF = 0.72 V @ 30 A, 125 °C (vs. 0.72 V @ same condition for MBRB3045CT) | Suitable for commercial-grade AC/DC adapters; lacks automotive reliability validation and D2PAK thermal advantage | Choose for legacy through-hole assembly or where board space allows larger footprint and higher thermal overhead |
Compared with STPS3045CGY and MBR3045CT, the MBRB3045CT-E3/45 offers superior thermal performance (1.5 °C/W), automotive qualification, and surface-mount compatibility-critical for high-density, high-reliability power conversion where junction temperature control and supply chain assurance are design priorities.
Availability
MBRB3045CT-E3/45 is available at Aetrix Electronics and suitable for automotive DC/DC converters, industrial switching power supplies, and USB-C PD fast charging adapters requiring stable component supply and long-term lifecycle support.
Supply support for MBRB3045CT-E3/45 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
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and optoelectronics with emphasis on reliability, efficiency, and application-specific optimization.
The MBRB3045CT-E3/45 belongs to Vishay's high-current Schottky rectifier product line, engineered for automotive and industrial power conversion systems demanding low VF, high surge tolerance, and AEC-Q101 compliance.
FAQ
What is the maximum junction temperature rating for MBRB3045CT-E3/45?
The MBRB3045CT-E3/45 has a maximum junction temperature (TJ max.) of +150 °C, verified per Vishay's datasheet revision 17-Nov-17. This rating enables reliable operation in under-hood automotive environments and high-ambient industrial enclosures. Derating begins above TC = 100 °C, and the device maintains full 30 A IF(AV) capability only when case temperature remains ≤100 °C. Thermal design must ensure RTJC × Pdiss + TC ≤ 150 °C.
Is MBRB3045CT-E3/45 pin-compatible with MBR3045CT?
No, MBRB3045CT-E3/45 is not pin-compatible with MBR3045CT. The MBRB3045CT-E3/45 uses a D2PAK (TO-263AB) surface-mount package with three terminals (anode–cathode–anode), while MBR3045CT uses a TO-220AB through-hole package with identical pin numbering but different mechanical layout and thermal interface. PCB redesign is required to migrate between them.
Does MBRB3045CT-E3/45 meet AEC-Q101 requirements?
Yes, MBRB3045CT-E3/45 is explicitly AEC-Q101 qualified, as confirmed in the Vishay datasheet (Document Number: 88677, Revision: 17-Nov-17). It undergoes stress testing including HTGB, HTRB, TCT, and ESD per AEC-Q101 Rev D, making it suitable for automotive powertrain and body electronics applications where reliability under thermal and mechanical stress is critical.
What is the typical forward voltage drop of MBRB3045CT-E3/45 at 30 A and 25 °C?
The typical forward voltage drop of MBRB3045CT-E3/45 is 0.76 V at 30 A and 25 °C, per the Electrical Characteristics table in the Vishay datasheet. At elevated temperature (125 °C), VF drops to 0.72 V due to Schottky barrier behavior-this reduction improves thermal stability in high-load conditions compared to silicon diodes.
Can MBRB3045CT-E3/45 be used in freewheeling applications with inductive loads?
Yes, MBRB3045CT-E3/45 is specifically designed for freewheeling applications with inductive loads. Its 200 A IFSM rating supports high-energy flyback currents, and its 10,000 V/μs dV/dt capability prevents spurious turn-on during rapid voltage transients. The guardring structure further enhances ruggedness against voltage overshoot in relay or solenoid drive circuits.
MBRB3045CT-E3/45 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Series:
- -
- Package/Case:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- 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):
- 15A
- Voltage - Forward (Vf) (Max) @ If:
- 600 mV @ 20 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 1 mA @ 45 V
- Operating Temperature - Junction:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-263AB (D2PAK)
MBRB3045CT-E3/45 FAQ
1.How can I place an order for MBRB3045CT-E3/45 through Aetrix?
Please submit a Request for Quotation (RFQ) for MBRB3045CT-E3/45 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 MBRB3045CT-E3/45 reliable?
The price and inventory of MBRB3045CT-E3/45 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MBRB3045CT-E3/45 is usually 5 days.
3.What payment methods are accepted for MBRB3045CT-E3/45?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MBRB3045CT-E3/45 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MBRB3045CT-E3/45?
MBRB3045CT-E3/45 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MBRB3045CT-E3/45 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 MBRB3045CT-E3/45?
For technical support, including MBRB3045CT-E3/45 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MBRB3045CT-E3/45 requirements.
6.How does Aetrix verify that MBRB3045CT-E3/45 is sourced from the original manufacturer or authorized distributors?
All MBRB3045CT-E3/45 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 MBRB3045CT-E3/45 meets industry standards.
7.What is the process for return or replacement of MBRB3045CT-E3/45?
All MBRB3045CT-E3/45 units undergo pre-shipment inspection (PSI). If there is an issue with MBRB3045CT-E3/45, 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 MBRB3045CT-E3/45 part is unused and in its original packaging.
Return procedure for MBRB3045CT-E3/45:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MBRB3045CT-E3/45 Tags
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