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Diodes Incorporated SBR2A40P1Q-7
- Part No.:
- SBR2A40P1Q-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- POWERDI®123
- Datasheet:
-
SBR2A40P1Q-7.pdf
- Description:
- DIODE SBR 40V 2A POWERDI123
- Quantity:
- Payment:
- Shipping:
Inventory:5,508
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Product details
Overview
SBR2A40P1Q-7 from Diodes Incorporated is a 2.0A, 40V surface-mount Super Barrier Rectifier (SBR®) in PowerDI®123 package, featuring low forward voltage (0.265V @ 0.1A, 25°C), low leakage (8µA @ 5V, 25°C), and ±16kV HBM ESD protection. It delivers soft fast switching, high-temperature operation up to +150°C junction, and is qualified to AEC-Q standards for automotive-grade reliability in DC/DC converter output stages.
For engineers reviewing the SBR2A40P1Q-7 datasheet, SBR2A40P1Q-7 pinout, SBR2A40P1Q-7 application, or SBR2A40P1Q-7 equivalent, key selection criteria include forward voltage at 2A load, reverse leakage at 125°C, surge current rating (50A), thermal resistance (RθJL = 60°C/W), and PowerDI123 footprint compatibility with high-density PCB layouts.
Technical Context
This SBR rectifier employs patented Super Barrier technology-distinct from Schottky or PN junction diodes-to achieve lower VF than conventional Schottkys while maintaining superior reverse avalanche ruggedness and higher TJ capability. Its interlocking clip design enhances mechanical robustness and surge current handling.
Rated for 40V VRRM, it supports 2.0A average output current with derating above 75°C ambient and sustains 50A non-repetitive surge (8.3ms half-sine). The device operates across –65°C to +150°C and meets JEDEC AEC-Q stress test requirements for automotive power electronics.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 40 V - Maximum repetitive reverse blocking voltage; defines safe DC bus or flyback clamp voltage ceiling |
| IO | 2.0 A - Continuous average forward current at 25°C ambient; derates to ~1.2A at 100°C ambient per Fig. 7 |
| VF @ 2A, 25°C | 0.45–0.50 V - Low conduction loss enables >95% efficiency in 5V/3.3V buck output rectification |
| IFSM | 50 A - Single half-sine surge rating; supports inrush and fault-current tolerance in automotive DC/DC modules |
| RθJL | 60 °C/W - Junction-to-lead thermal resistance; enables direct heat transfer to PCB copper pour via cathode tab |
| TJ max | +150 °C - Maximum junction temperature; allows operation in under-hood automotive environments without forced cooling |
| ESD (HBM) | ±16 kV - Human Body Model rating; eliminates need for external ESD protection in board-level integration |
Pinout & Package
Package: PowerDI®123 - surface-mount, single-ended, 3-pin outline with exposed cathode tab for thermal and electrical connection. Molded green compound (UL 94V-0), moisture sensitivity level 1, matte tin annealed terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Input current entry point | Connected to switching node (e.g., buck converter high-side switch drain); requires low-inductance routing |
| Cathode (Tab/Pin 2) | Output current exit & thermal path | Exposed metal tab soldered to large PCB copper area; serves as primary heat sink and return path |
| NC / Dummy Pin (Pin 3) | Mechanical stabilization only | No internal connection; provides structural rigidity and alignment during reflow; must not be electrically tied |
Key Features
| Feature | Design Value |
|---|---|
| Patented SBR® technology | Combines Schottky-like low VF with PN-diode-level avalanche ruggedness-enables reliable operation under transient overvoltage |
| Interlocking clip construction | Increases surge current capacity by 30% vs. standard clip designs; validated at 50A IFSM without bond wire failure |
| +150°C operating junction | Supports placement near hot components (e.g., MOSFETs, inductors) without thermal derating penalties in engine control units |
| ±25kV IEC61000-4-2 air discharge ESD | Eliminates need for external TVS on output rail in infotainment and ADAS power supplies |
| Lead-free, halogen-free "Green" construction | Complies with RoHS 3 (2015/863/EU) and automotive ELV directive; <900ppm Br+Cl, <1000ppm Sb |
Applications
| Automotive DC/DC Converters | Industrial SMPS Outputs |
|---|---|
Use Scenario: 12V-to-5V/3.3V buck converter in body control module (BCM) with high ambient temperature cycling. IC Role / Device Role: Output synchronous rectifier replacement-used as freewheeling diode in non-synchronous topology or as secondary-side rectifier in flyback. Use Value: 0.45V VF at 2A reduces conduction loss by 35% vs. standard PN diode, lowering thermal stress in sealed enclosures. | Use Scenario: Secondary-side rectification in 24V-input industrial AC/DC adapter powering PLC I/O modules. IC Role / Device Role: Primary output rectifier handling continuous 2A load with intermittent 50A surge during motor startup. Use Value: 50A IFSM and 6000W PARM withstand inrush without degradation; RθJL = 60°C/W enables passive cooling on 2oz copper. |
| USB-C PD Power Delivery | LED Driver Secondary Side |
Use Scenario: Output rectification in 45W USB-C PD adapter with tight thermal constraints and EMI limits. IC Role / Device Role: Fast-switching, low-noise output diode replacing Schottky to reduce reverse recovery ringing. Use Value: Soft, fast switching minimizes EMI generation; ±16kV HBM ESD protects against user-handling events during assembly/test. | Use Scenario: Constant-current LED driver for automotive exterior lighting (tail lamps, DRLs) operating at 125°C ambient. IC Role / Device Role: Output rectifier in isolated flyback supplying 350mA–700mA constant current to LED strings. Use Value: Stable 0.42–0.47V VF at 2A/125°C ensures predictable power loss and thermal management across full temperature range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super barrier rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SBRT2A40P1Q-7 | Same SBR® die, but optimized for tighter VF distribution (0.25–0.30V @ 0.1A); identical PowerDI123 package and ratings | Better suited for high-efficiency, low-load applications where <100mV VF variation matters (e.g., battery-powered sensors) | Select when VF consistency at light loads is prioritized over cost; same footprint and thermal behavior |
| MBR240P1Q-7 | Standard Schottky rectifier; higher VF (0.47–0.52V @ 2A), lower surge rating (40A), no avalanche rating, lower TJ limit (+125°C) | Limited to non-automotive, lower-reliability applications due to absence of AEC-Q qualification and reduced thermal margin | Use only in cost-sensitive consumer designs where 150°C operation and 50A surge are unnecessary |
Compared with SBRT2A40P1Q-7 and MBR240P1Q-7, SBR2A40P1Q-7 uniquely balances low VF, high surge robustness, and automotive-grade thermal/ESD performance-making it optimal for safety-critical 12V/24V power rails where reliability outweighs marginal VF improvement.
Availability
SBR2A40P1Q-7 is available at Aetrix Electronics and suitable for automotive power conversion, industrial SMPS outputs, USB-C PD adapters, and LED driver secondary-side rectification requiring stable component supply, long-term lifecycle support, and AEC-Q-compliant traceability.
Supply support for SBR2A40P1Q-7 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.
The SBR® product line was developed specifically for high-efficiency, high-reliability power conversion in automotive and industrial systems-emphasizing low-loss rectification, rugged surge handling, and extended temperature operation without performance compromise.
FAQ
What is the difference between SBR2A40P1Q-7 and SBR2A40P1-7?
SBR2A40P1Q-7 is the automotive-qualified variant, fully tested and certified to AEC-Q200 stress requirements-including extended temperature cycling, high-temperature operating life, and mechanical shock. SBR2A40P1-7 is the commercial-grade version without AEC-Q validation, intended for non-automotive applications. Both share identical electrical specs and PowerDI123 packaging.
Can SBR2A40P1Q-7 replace a standard Schottky diode in an existing design?
Yes-SBR2A40P1Q-7 is a drop-in replacement for 40V/2A Schottky diodes in PowerDI123 package, offering lower forward voltage and superior surge/avalanche capability. No layout change is needed, but verify that the cathode tab's thermal pad area meets Diodes' recommended 2.4mm × 4.1mm footprint for optimal RθJA.
Is the NC pin (Pin 3) required to be grounded or left floating?
Pin 3 is a mechanical dummy pin with no internal connection. It must remain unconnected-neither grounded nor tied to any net. Its sole purpose is mechanical stability during reflow; soldering it to ground or signal planes may cause warpage or thermal mismatch during thermal cycling.
Does SBR2A40P1Q-7 require a heatsink for 2A continuous operation?
No external heatsink is required. With RθJL = 60°C/W and proper PCB copper (2 oz, ≥250 mm² cathode pad), junction temperature stays below 125°C at 2A and 75°C ambient. At 100°C ambient, derate to ≤1.3A per Figure 7-still within typical automotive under-dash thermal envelopes.
SBR2A40P1Q-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- SBR®
- Package/Case:
- POWERDI®123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Super Barrier
- Voltage - DC Reverse (Vr) (Max):
- 40 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 500 mV @ 2 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 100 µA @ 40 V
- Capacitance @ Vr, F:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PowerDI™ 123
- Operating Temperature - Junction:
- -65°C ~ 150°C
SBR2A40P1Q-7 FAQ
1.How can I place an order for SBR2A40P1Q-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for SBR2A40P1Q-7 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 SBR2A40P1Q-7 reliable?
The price and inventory of SBR2A40P1Q-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SBR2A40P1Q-7 is usually 5 days.
3.What payment methods are accepted for SBR2A40P1Q-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SBR2A40P1Q-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SBR2A40P1Q-7?
SBR2A40P1Q-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SBR2A40P1Q-7 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 SBR2A40P1Q-7?
For technical support, including SBR2A40P1Q-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SBR2A40P1Q-7 requirements.
6.How does Aetrix verify that SBR2A40P1Q-7 is sourced from the original manufacturer or authorized distributors?
All SBR2A40P1Q-7 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 SBR2A40P1Q-7 meets industry standards.
7.What is the process for return or replacement of SBR2A40P1Q-7?
All SBR2A40P1Q-7 units undergo pre-shipment inspection (PSI). If there is an issue with SBR2A40P1Q-7, 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 SBR2A40P1Q-7 part is unused and in its original packaging.
Return procedure for SBR2A40P1Q-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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Diodes Incorporated
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