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Diodes Incorporated B250-13-F
- Part No.:
- B250-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
B250-13-F.pdf
- Description:
- DIODE SCHOTTKY 50V 2A SMB
- Quantity:
- Payment:
- Shipping:
Inventory:7,758
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Product details
Overview
B250-13-F from Diodes Incorporated is a 50 V, 2.0 A surface-mount Schottky barrier rectifier in SMB package, featuring 0.70 V forward voltage at 2.0 A, 50 A non-repetitive surge rating, and AEC-Q101 qualification for automotive use in low-voltage DC/DC converters and polarity protection circuits.
For engineers reviewing the B250-13-F datasheet, B250-13-F pinout, B250-13-F application, or B250-13-F equivalent, key selection criteria include forward voltage drop at rated current, peak repetitive reverse voltage, thermal resistance (20 °C/W junction-to-lead), surge robustness, and RoHS-compliant lead-free plating for reflow compatibility.
Technical Context
This Schottky rectifier uses guard ring die construction to enhance transient immunity and supports high-frequency switching in DC/DC stages due to low junction capacitance (200 pF at 40 V) and fast recovery characteristics. Its low VF enables reduced conduction loss in 12 V–24 V automotive power rails.
The device operates across –65 °C to +150 °C with thermal resistance of 20 °C/W (junction-to-lead, SMB), enabling stable performance under sustained 2.0 A load without forced cooling when mounted per recommended FR-4 pad layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 50 V - Maximum repetitive reverse blocking capability; sets upper limit for input voltage in buck converter output stage |
| IO | 2.0 A - Continuous average forward current; defines steady-state power delivery capacity at TA ≤ 75 °C |
| VF @ 2.0A | 0.70 V - Forward voltage drop at rated current; determines conduction loss (1.4 W typical at full load) |
| IFSM | 50 A - Non-repetitive 8.3 ms surge rating; withstands inrush during hot-plug or load dump events |
| RθJL | 20 °C/W - Junction-to-lead thermal resistance (SMB); enables direct thermal path to PCB copper for passive cooling |
| IR @ 50V | 0.5 mA - Reverse leakage at rated VR and 25 °C; impacts standby power in always-on systems |
| CT @ 40V | 200 pF - Total junction capacitance at 40 V reverse bias; limits high-frequency switching efficiency above ~1 MHz |
Pinout & Package
Package: SMB (Surface Mount Body), molded plastic case per UL 94V-0, matte tin-plated terminals, cathode identified by band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input current entry point | Connected to source-side of power path; must handle full load current and surge transients |
| Cathode | Output current exit point | Connected to load or ground return; polarity-sensitive for reverse-voltage protection |
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 underhood applications including engine control and body electronics |
| Lead-free, halogen-free "Green" finish | Complies with RoHS 2 and JEDEC J-STD-020 Level 1 moisture sensitivity for standard reflow |
| High-temperature soldering tolerance | Withstands 260 °C / 10 s reflow profile without parametric shift or delamination |
Applications
| Automotive Body Control Module (BCM) | Industrial 24 V DC/DC Converter |
|---|---|
Use Scenario: Polarity reversal protection on 12 V battery input to BCM microcontroller power rail. IC Role / Device Role / Timing Role: Unidirectional current gate preventing damage from incorrect battery connection. Use Value: 0.70 V VF minimizes voltage drop across protection diode, preserving >11.3 V supply to MCU during cold-crank conditions. | Use Scenario: Output rectification in isolated flyback converter supplying 5 V/2 A to PLC I/O modules. IC Role / Device Role / Timing Role: High-frequency synchronous rectifier replacement with zero recovery loss. Use Value: 50 A surge rating handles startup inrush; 200 pF CT avoids ringing at 500 kHz switching frequency. |
| LED Headlamp Driver | USB-C Power Delivery Input Stage |
Use Scenario: Free-wheeling path for boost inductor current during PWM dimming cycles. IC Role / Device Role / Timing Role: Fast-switching freewheeling diode in constant-current LED driver topology. Use Value: Low VF reduces heat generation in thermally constrained headlamp housing; 150 °C max TJ allows operation near optics. | Use Scenario: Input polarity protection before USB-C PD controller and buck regulator. IC Role / Device Role / Timing Role: Reverse-voltage blocking element on VBUS line prior to protection IC. Use Value: 50 V VRRM exceeds USB-C PD 20 V max; 0.5 mA IR at 25 °C ensures minimal standby drain on portable battery packs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SB550-E3/54 (Vishay) | Same SMB package, 50 V VRRM, but VF = 0.72 V @ 5 A (higher test current); RθJL = 22 °C/W | Slightly higher conduction loss at 2 A; lower surge rating (40 A) | Acceptable where 2 A derating is applied and surge margin is not critical |
| SS25 (ON Semiconductor) | SMB package, 50 V VRRM, VF = 0.75 V @ 2 A, IR = 0.2 mA @ 50 V (lower leakage) | Lower leakage benefits ultra-low-power always-on circuits; higher VF increases thermal load | Preferred in battery-backed systems where standby current dominates thermal budget |
Compared with SB550-E3/54 and SS25, B250-13-F offers superior surge robustness (50 A vs. 40 A/-) and tighter VF consistency at 2 A, making it optimal for automotive transients and thermally constrained 24 V industrial supplies.
Availability
B250-13-F is available at Aetrix Electronics and suitable for automotive body electronics, industrial 24 V DC/DC converters, and LED lighting drivers requiring stable component supply with AEC-Q101 compliance and RoHS-2 adherence.
Supply support for B250-13-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 and signal integrity solutions for automotive, industrial, and consumer markets.
The B2xx/A series targets cost-sensitive, high-volume Schottky rectification needs in automotive and industrial power conversion, emphasizing surge resilience, thermal efficiency, and process-controlled lead-free assembly.
FAQ
Is B250-13-F suitable for reflow soldering at 260°C?
Yes. The device is qualified for high-temperature soldering at +260°C for 10 seconds per terminal, meeting IPC/JEDEC J-STD-020 requirements. Its matte tin finish ensures reliable wetting and intermetallic formation without degradation of electrical parameters or package integrity.
What is the maximum ambient temperature for continuous 2.0 A operation?
At 2.0 A DC, the maximum ambient temperature is 75°C when mounted on FR-4 with minimum recommended pad layout. Derating begins above this point per Fig. 4 in DS13004; at 100°C ambient, IO drops to approximately 1.3 A due to thermal resistance (20 °C/W) and junction temperature limit (150°C).
Does B250-13-F have automotive qualification?
No - B250-13-F is the standard-grade version. Only part numbers ending in "Q" (e.g., B250Q-13) are AEC-Q101 qualified. While electrically identical, B250-13-F lacks PPAP documentation and automotive-specific reliability testing required for under-hood deployment.
How is polarity marked on the SMB package?
Polarity is indicated by a cathode band on the top surface of the SMB package. The band aligns with the cathode terminal; the opposite end is the anode. This marking is visible in top-view diagrams in DS13004 and matches industry-standard SMB orientation used in automated placement equipment.
B250-13-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-214AA, SMB
- 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:
- SMB
- Operating Temperature - Junction:
- -65°C ~ 150°C
B250-13-F FAQ
1.How can I place an order for B250-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for B250-13-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 B250-13-F reliable?
The price and inventory of B250-13-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for B250-13-F is usually 5 days.
3.What payment methods are accepted for B250-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for B250-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for B250-13-F?
B250-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your B250-13-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 B250-13-F?
For technical support, including B250-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your B250-13-F requirements.
6.How does Aetrix verify that B250-13-F is sourced from the original manufacturer or authorized distributors?
All B250-13-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 B250-13-F meets industry standards.
7.What is the process for return or replacement of B250-13-F?
All B250-13-F units undergo pre-shipment inspection (PSI). If there is an issue with B250-13-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 B250-13-F part is unused and in its original packaging.
Return procedure for B250-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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