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Diodes Incorporated B250Q-13-F
- Part No.:
- B250Q-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
B250Q-13-F.pdf
- Description:
- DIODE SCHOTTKY 50V 2A SMB
- Quantity:
- Payment:
- Shipping:
Inventory:4,960
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Product details
Overview
B250Q-13-F from Diodes Incorporated is a 2.0A, 50V surface-mount Schottky barrier rectifier in SMB package, with 0.70V max forward voltage at 2.0A and 0.5mA max reverse leakage at 25°C, designed for polarity protection, freewheeling, and blocking functions in low-voltage DC/DC converters and automotive power supplies.
For engineers reviewing the B250Q-13-F datasheet, B250Q-13-F pinout, B250Q-13-F application, or B250Q-13-F equivalent, key selection criteria include its AEC-Q101 qualification, 50A non-repetitive surge rating, RoHS-compliant matte tin plating, and thermal resistance of 20°C/W (junction-to-lead) for high-reliability board-level power management.
Technical Context
This Schottky rectifier uses guard ring die construction to suppress transient-induced junction breakdown, enabling robust operation under inductive load switching transients. Its low VF and fast recovery (<10ns) support high-frequency operation in SMPS and synchronous rectification circuits.
The device operates across –65°C to +150°C, with thermal derating beginning above 75°C ambient for SMB-mounted units. Total capacitance is 200pF at 40V reverse bias, limiting high-frequency noise coupling in sensitive analog rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 50 V - Maximum repetitive reverse voltage before avalanche conduction begins; sets safe DC blocking margin in 24V automotive systems. |
| IO(AV) | 2.0 A - Continuous average forward current at TA = +25°C; requires thermal pad design for sustained 2A loads above 75°C ambient. |
| VF(max) | 0.70 V @ 2.0A - Forward drop directly impacts conduction loss (1.4W at 2A); enables >92% efficiency in 5V–12V buck converter outputs. |
| IR(max) | 0.5 mA @ 25°C - Low leakage preserves battery standby time in always-on modules; rises to 20mA at +100°C but remains manageable. |
| IFSM | 50 A @ 8.3ms - Withstands motor startup surges and hot-plug transients without failure; critical for engine control unit (ECU) input protection. |
| RθJL | 20 °C/W - Junction-to-lead thermal resistance enables direct PCB copper pour heat sinking; reduces thermal stress vs. SMA-packaged variants. |
Pinout & Package
SMB (Surface Mount Body) package: molded plastic case, UL 94V-0 rated, cathode marked by band or notch on top surface; terminals are matte tin-plated for lead-free reflow compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side (e.g., ground return or switch node); must route with low-inductance trace to minimize ringing. |
| Cathode | Forward current exit / reverse blocking terminal | Marked by band; ties to positive rail or inductor output; determines polarity protection direction and freewheel path orientation. |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring die construction | Suppresses edge breakdown during voltage transients, extending lifetime in automotive load-dump environments (ISO 7637-2 Pulse 5a). |
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD (HBM ≥2kV), supporting Tier-1 ECU designs. |
| Lead-free & halogen-free | Meets RoHS 3 and JEDEC J-STD-020 Level 1 moisture sensitivity; eliminates post-reflow cleaning and supports green manufacturing. |
| 50A surge rating | Handles single-event inrush currents from capacitive inputs or relay coils without parametric shift or bond-wire fusing. |
Applications
| Automotive Body Control Module (BCM) | Industrial DC/DC Converter Output Stage |
|---|---|
Use Scenario: Reverse polarity protection on 12V supply input to BCM microcontroller and CAN transceiver circuitry. IC Role / Device Role / Timing Role: Unidirectional blocking diode placed between connector and bulk capacitor; prevents damage during battery jump-start misconnection. Use Value: 0.70V VF limits voltage drop to <0.5% of nominal 12V rail, preserving brown-out margins while surviving 50A surge events. | Use Scenario: Freewheel diode in non-synchronous 48V-to-12V buck converter powering PLC I/O modules. IC Role / Device Role / Timing Role: Provides low-loss current path during high-side MOSFET off-time; complements 100kHz switching frequency. Use Value: 200pF CT minimizes switching node ringing; 20°C/W RθJL allows 2A continuous operation with minimal heatsinking on 2oz copper. |
| USB-C Power Delivery Adapter | Smart Meter Power Supply |
Use Scenario: Output rectification in 20V auxiliary flyback stage supplying USB-C PD controller and level-shifters. IC Role / Device Role / Timing Role: High-efficiency rectifier replacing slower PN diodes; reduces conduction loss and thermal footprint. Use Value: 0.5mA IR at 25°C ensures <10μW standby dissipation, meeting Energy Star Level VI no-load requirements. | Use Scenario: Polarity protection and surge clamping at AC/DC adapter input of three-phase smart meter. IC Role / Device Role / Timing Role: Blocks reverse connection and absorbs line transients via guard ring structure. Use Value: AEC-Q101 qualification guarantees 15-year field life under cyclic thermal stress in outdoor meter enclosures. |
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 IO, but VF = 0.85V @ 2A; SMB package; no AEC-Q101 qualification. | Lacks automotive qualification; higher VF increases conduction loss by ~0.3W at 2A. | Select only for cost-sensitive industrial consumer products where AEC-Q101 is not mandated. |
| SS25HE3/57T (Vishay) | 50V VRRM, 2A IO, VF = 0.72V @ 2A; SMB; AEC-Q101 qualified; IR = 0.5mA @ 25°C. | Identical electrical specs and qualification; differs only in marking and tape/reel packaging (3,000 vs. 3,000). | Drop-in replacement with identical thermal and reliability performance; verify reel orientation compatibility. |
Compared with SB250-E3/54, B250Q-13-F delivers lower conduction loss and automotive qualification; versus SS25HE3/57T, it offers identical performance with Diodes Inc.'s supply chain continuity and PPAP documentation support.
Availability
B250Q-13-F is available at Aetrix Electronics and suitable for automotive body control modules, industrial DC/DC converters, USB-C power adapters, and smart meter power supplies requiring stable component supply and long-term lifecycle assurance.
Supply support for B250Q-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, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
The B250Q-13-F belongs to Diodes' automotive-qualified Schottky rectifier product line, engineered specifically for high-reliability power conversion and protection in harsh-environment applications including engine control, lighting, and infotainment systems.
FAQ
What is the maximum operating temperature for B250Q-13-F?
The B250Q-13-F has an operating junction temperature range of –65°C to +150°C. When mounted on an FR-4 PCB with recommended pad layout, its ambient temperature derating begins at 75°C, reaching zero current capability at 150°C ambient per Fig. 5 in DS38433 Rev. 3-2.
Is B250Q-13-F compatible with lead-free reflow soldering processes?
Yes. B250Q-13-F features matte tin-plated terminals and is qualified to JEDEC J-STD-020 Level 1 moisture sensitivity. It supports standard lead-free reflow profiles up to 260°C peak temperature, with no pre-bake required prior to assembly.
Does B250Q-13-F have a cathode marking on the package?
Yes. The SMB package uses a visible cathode band on the top surface, consistent with industry-standard polarity identification. This band aligns with the cathode terminal and must be oriented toward the positive rail in blocking or freewheel configurations.
How does the guard ring construction improve reliability?
The guard ring die structure surrounds the active junction to distribute electric field gradients during reverse-bias transients, preventing localized avalanche and premature failure. This extends operational life in automotive load-dump and ISO 7637-2 pulse scenarios where voltage spikes exceed VRRM momentarily.
B250Q-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 @ 40V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMB
- Operating Temperature - Junction:
- -65°C ~ 150°C
B250Q-13-F FAQ
1.How can I place an order for B250Q-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for B250Q-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 B250Q-13-F reliable?
The price and inventory of B250Q-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 B250Q-13-F is usually 5 days.
3.What payment methods are accepted for B250Q-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for B250Q-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for B250Q-13-F?
B250Q-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your B250Q-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 B250Q-13-F?
For technical support, including B250Q-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your B250Q-13-F requirements.
6.How does Aetrix verify that B250Q-13-F is sourced from the original manufacturer or authorized distributors?
All B250Q-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 B250Q-13-F meets industry standards.
7.What is the process for return or replacement of B250Q-13-F?
All B250Q-13-F units undergo pre-shipment inspection (PSI). If there is an issue with B250Q-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 B250Q-13-F part is unused and in its original packaging.
Return procedure for B250Q-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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