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Diodes Incorporated B250A-13-F
- Part No.:
- B250A-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
B250A-13-F.pdf
- Description:
- DIODE SCHOTTKY 50V 2A SMA
- Quantity:
- Payment:
- Shipping:
Inventory:759
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Product details
Overview
B250A-13-F from Diodes Incorporated is a 2.0A surface-mount Schottky barrier rectifier in SMA package, rated for 50V peak repetitive reverse voltage and 0.70V forward voltage at 2.0A, optimized for low-voltage, high-frequency inverters, free-wheeling, and polarity protection circuits in automotive and industrial power supplies.
For engineers reviewing the B250A-13-F datasheet, B250A-13-F pinout, B250A-13-F application, or B250A-13-F equivalent, key selection criteria include its 50V VRRM rating, 50A non-repetitive surge capability, 25°C/W junction-to-lead thermal resistance, RoHS-compliant lead-free finish, and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This Schottky diode employs guard ring die construction to enhance transient protection and withstand repetitive surge events up to 50A (8.3ms half-sine). Its low forward voltage drop minimizes conduction losses in DC-DC converters and switching regulators operating below 50V.
The device operates across –65°C to +150°C and features a cathode band polarity indicator. Thermal performance is defined by RθJL = 25°C/W (SMA), enabling stable operation under continuous 2.0A load with appropriate PCB copper area per AP02001 layout guidelines.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 50 V - Maximum peak reverse voltage before breakdown; sets upper limit for blocking capability in 48V systems |
| IF(AV) | 2.0 A - Continuous average forward current; defines steady-state power handling with proper thermal management |
| VF @ 2.0A | 0.70 V - Forward voltage drop at rated current; directly determines conduction loss (1.4W at 2A) |
| IFSM | 50 A - Non-repetitive surge rating; supports inrush and fault-current tolerance in motor drives and SMPS |
| RθJL | 25 °C/W - Junction-to-lead thermal resistance (SMA); enables thermal design using lead solder joint as primary heat path |
| IR @ 50V | 0.5 mA - Reverse leakage at rated VR and 25°C; impacts standby power in battery-backed circuits |
| TJ Range | –65°C to +150°C - Operating junction temperature range; validated for under-hood automotive environments |
Pinout & Package
Package: SMA (DO-214AC), molded plastic case with UL 94V-0 flammability rating, matte tin-plated terminals, cathode indicated by band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side of circuit; requires adequate copper pour for thermal dissipation |
| Cathode | Forward current exit / reverse blocking terminal | Marked with band; ties to higher-potential rail; critical for polarity protection orientation |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring die construction | Improves ESD and transient immunity without external TVS, reducing BOM count in automotive ECUs |
| AEC-Q101 qualification | Validated for automotive applications including engine control, body electronics, and ADAS power stages |
| Lead-free & halogen-free | Complies with RoHS 2 and "Green" standards (<900ppm Br/Cl, <1000ppm Sb), supporting eco-design requirements |
| High-temp solder compatibility | Rated for 260°C/10s reflow, compatible with standard Pb-free assembly processes |
| Moisture sensitivity Level 1 | No dry-pack or baking required prior to assembly, simplifying manufacturing logistics |
Applications
| Automotive Body Control Module | Industrial DC-DC Converter |
|---|---|
Use Scenario: Reverse polarity protection on 12V/24V input rails of BCMs powering door locks, lighting, and sensors. IC Role / Device Role / Timing Role: Unidirectional blocking diode preventing damage during battery jump-start or misconnection. Use Value: 0.70V VF limits power loss to ≤1.4W at 2A, avoiding thermal runaway in sealed enclosures. | Use Scenario: Free-wheeling path in synchronous buck converter output stage for factory automation PLCs. IC Role / Device Role / Timing Role: Fast-recovery freewheeling diode clamping inductive kickback during high-side switch off-time. Use Value: 50A IFSM withstands peak currents during overload transients without degradation. |
| Consumer USB-C Power Delivery | Telecom Base Station PSU |
Use Scenario: Input OR-ing diode in dual-input 20V PD adapter to prevent backfeed between sources. IC Role / Device Role / Timing Role: Low-VF OR-ing element enabling seamless source handover with minimal voltage drop. Use Value: 0.70V VF ensures ≥19.3V output under 2A load, preserving PD negotiation margin. | Use Scenario: Output rectification in 48V intermediate bus converter supplying RF amplifiers. IC Role / Device Role / Timing Role: High-efficiency output rectifier minimizing conduction loss in high-current, high-density PSUs. Use Value: 25°C/W RθJL allows direct thermal coupling to heatsink via lead frame, sustaining 2A at 100°C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SB250-E3/54 (Vishay) | Same 50V VRRM, 2A IF, but SMB package (RθJL = 20°C/W); VF = 0.72V @ 2A | Slightly better thermal performance in SMB, but larger footprint than SMA | Select when board space permits larger package and lower thermal resistance is prioritized |
| SS25HE3/57T (Vishay) | 50V VRRM, 2A IF, SMA package, VF = 0.75V @ 2A, no AEC-Q101 qualification | Lacks automotive qualification; suitable only for commercial-grade applications | Choose for cost-sensitive consumer designs where AEC-Q101 is not required |
Compared with SB250-E3/54 and SS25HE3/57T, B250A-13-F uniquely combines SMA footprint, AEC-Q101 qualification, and 25°C/W thermal resistance-making it optimal for space-constrained automotive modules requiring production traceability and extended temperature operation.
Availability
B250A-13-F is available at Aetrix Electronics and suitable for automotive body electronics, industrial DC-DC converters, and telecom power supply designs requiring stable component supply, long-term lifecycle support, and AEC-Q101 compliance.
Supply support for B250A-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.
B250A-13-F belongs to the B2xx/A Schottky rectifier product line, engineered for high-efficiency, low-loss rectification in automotive and industrial power conversion where thermal robustness and transient resilience are critical.
FAQ
What is the maximum junction temperature for continuous operation of B250A-13-F?
The B250A-13-F is rated for continuous operation from –65°C to +150°C junction temperature. At 2.0A average forward current, sustained operation at +150°C requires strict adherence to the derating curve in Figure 4 and minimum pad layout per AP02001 to maintain thermal equilibrium.
Is B250A-13-F suitable for use in synchronous rectification topologies?
No-B250A-13-F is a passive Schottky rectifier, not a synchronous MOSFET controller or driver. It functions as a unidirectional freewheeling or OR-ing diode, but lacks gate drive capability or timing control required for active synchronous rectification.
Does B250A-13-F have a specified reverse recovery time (trr)?
No-Schottky barrier diodes like B250A-13-F are majority-carrier devices with no minority-carrier storage; therefore, trr is not specified. Their intrinsic fast switching arises from absence of reverse recovery charge, making them ideal for high-frequency (>100kHz) applications without snubbers.
Can B250A-13-F replace B240A-13-F in an existing design?
Yes-with caution: B250A-13-F has higher VRRM (50V vs. 40V) and slightly higher VF (0.70V vs. 0.50V at 2A), so it's electrically safe in all B240A-13-F applications but may increase conduction loss by ~0.4W. Thermal validation is recommended if operating near thermal limits.
B250A-13-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-214AC, SMA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 50 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 700 mV @ 2 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 500 µA @ 50 V
- Capacitance @ Vr, F:
- 200pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMA
- Operating Temperature - Junction:
- -65°C ~ 150°C
B250A-13-F FAQ
1.How can I place an order for B250A-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for B250A-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 B250A-13-F reliable?
The price and inventory of B250A-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 B250A-13-F is usually 5 days.
3.What payment methods are accepted for B250A-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for B250A-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for B250A-13-F?
B250A-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your B250A-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 B250A-13-F?
For technical support, including B250A-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your B250A-13-F requirements.
6.How does Aetrix verify that B250A-13-F is sourced from the original manufacturer or authorized distributors?
All B250A-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 B250A-13-F meets industry standards.
7.What is the process for return or replacement of B250A-13-F?
All B250A-13-F units undergo pre-shipment inspection (PSI). If there is an issue with B250A-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 B250A-13-F part is unused and in its original packaging.
Return procedure for B250A-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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