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Diodes Incorporated B390-13-F
- Part No.:
- B390-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
B390-13-F.pdf
- Description:
- DIODE SCHOTTKY 90V 3A SMC
- Quantity:
- Payment:
- Shipping:
Inventory:3,613
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Product details
Overview
B390-13-F from Diodes Incorporated is a 3.0A, 90V peak repetitive reverse voltage Schottky barrier rectifier in SMC package, featuring low forward voltage (0.79 V at 3.0A, 25°C), 100A non-repetitive surge rating, and guard ring die construction for transient protection-used in low-voltage, high-frequency inverters and polarity protection circuits.
For engineers reviewing the B390-13-F datasheet, B390-13-F pinout, B390-13-F application, or B390-13-F equivalent, key selection criteria include forward voltage drop at operating temperature, thermal resistance (10°C/W), surge capability, RoHS-compliant lead-free plating, and SMC package compatibility with automated PCB assembly.
Technical Context
This Schottky rectifier employs guard ring die construction to enhance transient voltage immunity and reduce leakage under high reverse bias. Its low VF enables high-efficiency power conversion in DC-DC stages where conduction loss minimization is critical.
Designed for operation up to +125°C junction temperature, it delivers stable 3.0A average forward current with derating above 90°C terminal temperature and exhibits 100 pF total capacitance at 4V reverse bias-supporting high-frequency switching up to several MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 90 V - Maximum peak repetitive reverse voltage; defines safe blocking capability in rectification paths. |
| IO @ TT=90°C | 3.0 A - Continuous average forward current rating at 90°C terminal temperature; sets thermal design baseline. |
| VF @ 3.0A, 25°C | 0.79 V - Forward voltage drop at rated current and room temperature; directly determines conduction loss (2.37 W typical). |
| IFSM (8.3ms) | 100 A - Non-repetitive surge current capacity; supports inrush and fault-current handling in power supplies. |
| RθJT | 10 °C/W - Junction-to-terminal thermal resistance; enables direct heatsink interface modeling without PCB copper plane assumptions. |
| IR @ VR=90V, 25°C | 0.5 mA - Reverse leakage current at full rated voltage and 25°C; impacts standby power in battery-backed systems. |
| CT @ 4V, 1MHz | 100 pF - Total junction capacitance; limits high-frequency switching speed and EMI generation in snubberless designs. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount molded plastic case with UL 94V-0 flammability rating, matte tin-plated terminals, cathode band polarity marking, and 0.21 g mass.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry node during forward conduction | Connected to lower-potential side of source (e.g., transformer secondary center-tap or switch node). |
| Cathode | Current exit node during forward conduction; marked with band/notch | Connected to output rail or load return; defines output polarity in half-wave rectifiers. |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring die construction | Improves transient voltage immunity and reduces localized field crowding at edge termination. |
| Lead-free / RoHS-compliant finish | Matte tin plating meets MIL-STD-202 solderability requirements and EU Directive 2002/95/EC exemptions. |
| Green molding compound | Halogen- and antimony-free encapsulant (introduced 2009+), reducing environmental impact and corrosion risk. |
| 100A surge rating (8.3ms) | Enables robust operation during cold-start inverter surges or motor commutation spikes without degradation. |
| Low VF at elevated temperature | 0.69 V at 3.0A and 100°C maintains efficiency in thermally constrained enclosures. |
Applications
| Photovoltaic Microinverters | Automotive DC-DC Converters |
|---|---|
Use Scenario: Rectifying high-frequency AC from microinverter H-bridge output into DC for grid synchronization. IC Role / Device Role / Timing Role: Output Schottky rectifier in synchronous or asynchronous flyback-derived topology. Use Value: Low VF and 100 pF CT minimize conduction loss and switching node ringing, improving >96% conversion efficiency. | Use Scenario: Polarity protection and reverse-battery protection in 12V/48V automotive DC-DC modules. IC Role / Device Role / Timing Role: Unidirectional current path enforcement on input rail with fast recovery. Use Value: 90V VRRM withstands load-dump transients (ISO 7637-2 Pulse 5a), while 0.79 V VF limits voltage drop below 2.4 V at 3A. |
| Industrial Motor Drives | LED Driver Secondary Rectification |
Use Scenario: Free-wheeling diode across IGBT gate drivers and low-side switches in BLDC inverter stages. IC Role / Device Role / Timing Role: Fast-recovery freewheeling path during PWM dead-time intervals. Use Value: Guard ring structure prevents avalanche-induced failure during inductive kickback events up to 100A. | Use Scenario: Output rectification in isolated flyback LED drivers powering streetlight or architectural fixtures. IC Role / Device Role / Timing Role: High-efficiency secondary-side rectifier replacing slower PN diodes. Use Value: 3.0A IO rating supports >35W output at 90% efficiency; green compound ensures compliance in outdoor-rated enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SB390-E3/52 (Vishay) | Same 90V VRRM, 3.0A IO, but TO-277 package (lower RθJT = 8°C/W); VF = 0.82 V @ 3A, 25°C. | TO-277 offers better thermal performance but requires different footprint and stencil design. | Select when board-level thermal management is prioritized over standard SMC footprint reuse. |
| SS39 (ON Semiconductor) | 90V VRRM, 3.0A IO, SMC package, but VF = 0.85 V @ 3A, 25°C and IR = 1.0 mA @ 90V, 25°C (higher leakage). | Higher leakage may increase standby power in always-on lighting controls. | Acceptable where cost sensitivity outweighs 50 mV VF penalty and 2× leakage tolerance. |
Compared with SB390-E3/52 and SS39, B390-13-F provides the lowest VF among SMC-packaged 90V/3A Schottkys and uniquely combines guard ring protection with halogen-free molding-critical for industrial inverters requiring long-term reliability under voltage stress.
Availability
B390-13-F is available at Aetrix Electronics and suitable for photovoltaic microinverters, automotive DC-DC converters, and industrial motor drives requiring stable component supply, RoHS compliance, and SMC package standardization.
Supply support for B390-13-F 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, specializing in high-reliability power management, signal integrity, and protection solutions for industrial and automotive markets.
The B390-13-F belongs to Diodes' high-voltage Schottky rectifier product line, engineered for efficiency-critical AC/DC and DC/DC conversion where low VF, surge robustness, and thermal stability are mandatory.
FAQ
What is the maximum junction temperature for continuous operation?
The B390-13-F has a specified operating junction temperature range of –55°C to +125°C. Continuous operation at full 3.0A current requires maintaining terminal temperature ≤90°C per the derating curve; exceeding this necessitates thermal design adjustments such as heatsinking or airflow to prevent exceeding 125°C TJ.
Is B390-13-F suitable for synchronous rectification?
No-B390-13-F is a passive Schottky rectifier, not a MOSFET-based synchronous rectifier controller or driver. It lacks gate control logic or integrated drive circuitry. It functions only as a two-terminal uncontrolled rectifier, making it appropriate for asynchronous topologies like flyback or forward converters with external switching control.
Does the "-13-F" suffix indicate tape-and-reel packaging?
Yes-the "-13-F" suffix denotes SMC package supplied in 3000-piece tape-and-reel format per Diodes Incorporated's ordering nomenclature. The "F" confirms RoHS-compliant, lead-free finish; "13" identifies the SMC case code per their internal packaging matrix.
How does guard ring die construction improve reliability?
Guard ring die construction extends the depletion region beyond the active junction edge, reducing electric field concentration at the silicon periphery. This suppresses premature edge breakdown under transient overvoltage, increasing immunity to ISO 7637-2 load-dump pulses and improving long-term reliability in automotive and industrial environments with frequent voltage spikes.
B390-13-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-214AB, SMC
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 90 V
- Current - Average Rectified (Io):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- 790 mV @ 3 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 500 µA @ 90 V
- Capacitance @ Vr, F:
- 100pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMC
- Operating Temperature - Junction:
- -55°C ~ 125°C
B390-13-F FAQ
1.How can I place an order for B390-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for B390-13-F 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 B390-13-F reliable?
The price and inventory of B390-13-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for B390-13-F is usually 5 days.
3.What payment methods are accepted for B390-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for B390-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for B390-13-F?
B390-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your B390-13-F 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 B390-13-F?
For technical support, including B390-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your B390-13-F requirements.
6.How does Aetrix verify that B390-13-F is sourced from the original manufacturer or authorized distributors?
All B390-13-F 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 B390-13-F meets industry standards.
7.What is the process for return or replacement of B390-13-F?
All B390-13-F units undergo pre-shipment inspection (PSI). If there is an issue with B390-13-F, 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 B390-13-F part is unused and in its original packaging.
Return procedure for B390-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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