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Diodes Incorporated B250BE-13
- Part No.:
- B250BE-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
B250BE-13.pdf
- Description:
- DIODE SCHOTTKY 50V 2A SMB
- Quantity:
- Payment:
- Shipping:
Inventory:5,902
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Product details
Overview
B250BE-13 from Diodes Incorporated is a 50 V, 2 A surface-mount Schottky barrier rectifier in SMB package with maximum forward voltage of 0.65 V at 2 A and reverse leakage current of 0.10 mA at 50 V and +25°C. It delivers low conduction loss and stable high-temperature leakage performance for DC/DC converter output rectification, solar panel blocking, and motor recirculation paths.
For engineers reviewing the B250BE-13 datasheet, B250BE-13 pinout, B250BE-13 application, or B250BE-13 equivalent, key selection criteria include its 50 V VRRM rating, 2 A IO capability, SMB thermal resistance (RθJA = 90 °C/W), junction capacitance of 75 pF at 4 V, and RoHS-compliant matte tin finish on copper leadframe.
Technical Context
This Schottky rectifier uses a planar metal-semiconductor junction to achieve low VF and minimal stored charge, enabling high-frequency switching operation without reverse recovery losses. Its low RθJC (40 °C/W) and optimized SMB thermal pad design support continuous 2 A conduction under ambient temperatures up to +125°C.
Reverse leakage remains tightly controlled-0.01 mA at 50 V and +25°C, rising to only 0.10 mA at +125°C-making it suitable for thermally constrained power stages where thermal runaway must be avoided. The device operates within -55°C to +150°C junction temperature range and meets J-STD-020 moisture sensitivity Level 1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 50 V - Maximum repetitive reverse voltage before breakdown; sets safe operating limit in boost or flyback secondary circuits. |
| IO (AV) | 2 A - Average forward rectified current; supports continuous 2 A DC output in compact SMB footprint. |
| VF (MAX) | 0.65 V @ 2 A, +25°C - Low forward drop reduces conduction loss by ~30% vs. standard PN diodes, improving efficiency in 5–12 V systems. |
| IR (MAX) | 0.10 mA @ 50 V, +25°C - Ultra-low leakage preserves battery life in standby mode and prevents thermal drift in high-temp environments. |
| RθJA | 90 °C/W - Thermal resistance from junction to ambient on FR-4 PCB; enables 2 A operation without heatsink below +85°C ambient. |
| Junction Capacitance | 75 pF @ 4 V, 1 MHz - Low CT minimizes switching noise and EMI in high-frequency SMPS (>300 kHz) applications. |
Pinout & Package
Package: SMB (Surface Mount Small Outline Diode), molded plastic case with UL 94V-0 flammability rating, cathode band marking, and matte tin–annealed copper leadframe.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side (e.g., switch node in buck converter); accepts up to 50 A non-repetitive surge (IFSM). |
| Cathode | Forward current exit / reverse blocking terminal | Marked with band; connects to output rail or positive bus; blocks up to 50 V reverse bias with <0.1 mA leakage at +25°C. |
Key Features
| Feature | Design Value |
|---|---|
| Low forward voltage | 0.65 V max at 2 A ensures ≤1.3 W conduction loss, reducing thermal stress in space-constrained 12 V automotive or industrial supplies. |
| High-temperature leakage stability | 0.10 mA IR at +25°C rises only to 11.5 mA at +125°C-enables reliable operation in under-hood or enclosed power modules. |
| RoHS & Green compliant | Halogen- and antimony-free (<900 ppm Br/Cl, <1000 ppm Sb); satisfies EU Directive 2011/65/EU and IPC-1752A environmental reporting. |
| SMB mechanical robustness | 0.093 g mass, 90 °C/W RθJA, and J-STD-020 Level 1 moisture sensitivity allow reflow compatibility and board-level reliability in automated assembly. |
Applications
| Boost Diode | Blocking Diode |
|---|---|
Use Scenario: Used in DC/DC boost converters for USB PD adapters and LED drivers to transfer energy from input to output during switch-off phase. IC Role / Device Role: Unidirectional current path enabling inductor energy transfer while blocking reverse current from output capacitor. Use Value: 0.65 V VF minimizes voltage headroom loss, allowing higher output voltage from low-input sources like single-cell Li-ion (3.0–4.2 V). |
Use Scenario: Placed between solar panel strings and battery bank to prevent reverse current flow at night or during shading. IC Role / Device Role: Reverse-current isolation element protecting panels from thermal damage due to backfeed. Use Value: 0.10 mA IR at +25°C and stable leakage up to +125°C avoids parasitic discharge and maintains >99.5% daytime energy retention. |
| Recirculating Diode | Output Rectifier |
Use Scenario: Installed across brushed DC motor windings to clamp inductive kickback during PWM commutation in HVAC actuators and power tools. IC Role / Device Role: Freewheeling path for stored inductive energy, limiting voltage spikes to ≤50 V. Use Value: Fast zero-recovery behavior eliminates switching delay, enabling clean 20 kHz+ PWM control without snubber networks. |
Use Scenario: Secondary-side rectifier in isolated 5 V/3 A flyback power supply for industrial IoT gateways. IC Role / Device Role: Main output current path converting transformer AC to regulated DC, dissipating <1.5 W at full load. Use Value: SMB package's 90 °C/W RθJA allows natural convection cooling-no heatsink required in 25 mm² PCB area. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SS25-E3/57T (Vishay) | Same SMB package, 50 V VRRM, but VF = 0.52 V typ @ 2 A (lower), IR = 0.15 mA @ 50 V, +25°C (higher). | Lower VF improves light-load efficiency; higher IR limits use above +100°C ambient. | Select when optimizing for <10% load efficiency over thermal margin. |
| SB250 (ON Semiconductor) | SMB package, 50 V VRRM, VF = 0.62 V max @ 2 A, IR = 0.05 mA @ 50 V, +25°C (lower), RθJA = 95 °C/W (worse). | Superior leakage control suits battery backup systems; higher thermal resistance requires derating above +70°C. | Select when ultra-low standby leakage is critical and board layout allows minor thermal margin trade-off. |
Compared with SS25-E3/57T and SB250, B250BE-13 offers balanced VF/IR performance (0.65 V / 0.10 mA) and best-in-class thermal resistance (90 °C/W), making it optimal for general-purpose 2 A rectification where both efficiency and thermal reliability are required.
Availability
B250BE-13 is available at Aetrix Electronics and suitable for DC/DC converter design, solar energy management, motor drive protection, and industrial power supply development requiring stable component supply and long-term manufacturing continuity.
Supply support for B250BE-13 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.
B250BE-13 belongs to Diodes' high-reliability Schottky rectifier product line, engineered for efficient, thermally robust power conversion in automotive, industrial, and consumer power supplies.
FAQ
What is the maximum junction temperature for B250BE-13?
The absolute maximum junction temperature is +150°C, with continuous operation supported from -55°C to +150°C. At 2 A DC load and +85°C ambient on standard FR-4 PCB, junction temperature reaches approximately +125°C, staying within safe margin per thermal derating curve (Figure 4).
Is B250BE-13 suitable for automotive under-hood applications?
Yes-its guaranteed operation to +150°C junction, low IR drift up to +125°C, and AEC-Q200–compatible construction (per Diodes' internal qualification) make it appropriate for engine control unit power rails and HVAC blower circuits, provided board layout meets thermal pad requirements.
How does the SMB package compare to SMA for thermal performance?
B250BE-13 in SMB has RθJA = 90 °C/W versus 95 °C/W for SMA-packaged B250AE-13 under identical test conditions. The larger SMB footprint provides better copper spreading and lower thermal resistance, supporting higher sustained current in thermally dense layouts.
Does B250BE-13 require a heatsink in 2 A applications?
No heatsink is required for 2 A DC operation at ambient temperatures ≤+85°C on a standard FR-4 PCB with recommended 4.00 mm × 6.50 mm solder pad. Derating begins above +85°C ambient per Figure 4; forced air or enhanced copper pours extend usable range.
B250BE-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-214AA, SMB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 50 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 650 mV @ 2 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 100 µA @ 50 V
- Capacitance @ Vr, F:
- 75pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMB
- Operating Temperature - Junction:
- -55°C ~ 150°C
B250BE-13 FAQ
1.How can I place an order for B250BE-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for B250BE-13 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 B250BE-13 reliable?
The price and inventory of B250BE-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for B250BE-13 is usually 5 days.
3.What payment methods are accepted for B250BE-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for B250BE-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for B250BE-13?
B250BE-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your B250BE-13 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 B250BE-13?
For technical support, including B250BE-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your B250BE-13 requirements.
6.How does Aetrix verify that B250BE-13 is sourced from the original manufacturer or authorized distributors?
All B250BE-13 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 B250BE-13 meets industry standards.
7.What is the process for return or replacement of B250BE-13?
All B250BE-13 units undergo pre-shipment inspection (PSI). If there is an issue with B250BE-13, 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 B250BE-13 part is unused and in its original packaging.
Return procedure for B250BE-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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