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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Single Diodes

Diodes Incorporated B250AQ-13-F

Name: B250AQ-13-F
Brand: Diodes Incorporated
SKU: B250AQ-13-F
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: B250AQ-13-F

Manufacturer:: Diodes Incorporated

Category:: Single Diodes

Package:: DO-214AC, SMA

Datasheet:: B250AQ-13-F.pdf

Description:: DIODE SCHOTTKY 50V 2A SMA

Quantity:: RFQ Add To RFQ list

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Inventory:9,334

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Product details

Overview

B250AQ-13-F from Diodes Incorporated is a 50 V, 2.0 A surface-mount Schottky barrier rectifier in SMA package, with 0.70 V max forward voltage at 2.0 A and 0.5 mA max reverse leakage at rated VR and +25°C, used for polarity protection and freewheeling in low-voltage DC/DC converters and automotive body control modules.

For engineers reviewing the B250AQ-13-F datasheet, B250AQ-13-F pinout, B250AQ-13-F application, or B250AQ-13-F equivalent, key selection criteria include V_RRM = 50 V, I_O = 2.0 A, V_F ≤ 0.70 V @ 2.0 A, I_R ≤ 0.5 mA @ 50 V, and AEC-Q101 qualification for automotive-grade reliability.

Technical Context

This Schottky rectifier employs guard ring die construction to suppress transient-induced junction breakdown, enabling robust operation under repetitive surge conditions up to 50 A (8.3 ms half-sine). Its low forward voltage minimizes conduction loss in high-frequency switching topologies.

Thermal resistance is specified as R_θJL = 25 °C/W (junction-to-lead) for the SMA package, supporting continuous 2.0 A operation at T_A ≤ 100°C when mounted on standard FR-4 PCB with recommended pad layout. Reverse recovery is inherently negligible due to majority-carrier conduction.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	50 V - Maximum repetitive reverse blocking voltage; defines safe operating limit in polarity protection and flyback clamp circuits.
I_O	2.0 A - Average rectified forward current; supports continuous power delivery in 5–12 V embedded power rails.
V_F Max	0.70 V @ 2.0 A - Low conduction loss enables >92% efficiency in 5 V buck converter output stages.
I_R Max	0.5 mA @ 50 V, +25°C - Minimal leakage preserves battery runtime in always-on automotive modules.
I_FSM	50 A peak - Withstands inductive kickback surges in motor driver freewheel paths without degradation.
R_θJL	25 °C/W - Enables direct thermal coupling to PCB copper; simplifies thermal design vs. higher-R_θ alternatives.

Pinout & Package

Package: SMA (DO-214AC), molded plastic case with UL 94V-0 flammability rating, matte tin-plated terminals, cathode band polarity marking, weight ≈ 0.064 g.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to input/source side of rectification path; must handle full load current and surge transients.
Cathode	Forward current exit / reverse-blocking terminal	Connected to output/load side; cathode band identifies this terminal visually and on PCB silkscreen.

Key Features

Feature	Design Value
Guard ring die construction	Prevents edge breakdown during voltage transients, extending device lifetime in noisy automotive environments.
AEC-Q101 qualification	Validated for automotive applications including BCM, lighting, and infotainment power supplies.
Lead-free, halogen-free "Green" construction	Complies with RoHS 3 (2015/863/EU) and meets automotive OEM material declarations (Br+Cl <1500 ppm, Sb <1000 ppm).
SMA package with J-STD-020 Level 1 moisture sensitivity	Enables standard reflow assembly without baking; compatible with high-volume SMT lines.

Applications

Automotive Body Control Module (BCM)

USB-C Power Delivery Input Stage

Use Scenario: Reverse polarity protection on 12 V supply rail feeding microcontroller, CAN transceiver, and LED drivers.

IC Role / Device Role / Timing Role: Unidirectional blocking diode preventing damage from accidental battery reversal during service.

Use Value: 0.70 V V_F limits voltage drop to <1.2% of 12 V rail, preserving headroom for downstream LDOs and logic.

Use Scenario: Input rectification and surge clamping in 20 V USB PD adapter secondary side before synchronous rectifier controller.

IC Role / Device Role / Timing Role: Freewheel diode in active-clamp forward topology; handles 50 A surge during MOSFET turn-off.

Use Value: 50 A I_FSM rating ensures survival during repeated 100 ns–1 µs voltage spikes without derating.

Industrial PLC Digital Input Protection

Low-Voltage DC/DC Converter Output Clamp

Use Scenario: Polarity protection for 24 V digital input channels accepting field wiring from sensors or switches.

IC Role / Device Role / Timing Role: Blocking diode placed between terminal block and optocoupler input circuitry.

Use Value: 0.5 mA I_R at 24 V prevents false triggering caused by leakage-induced bias current in high-impedance input networks.

Use Scenario: Snubberless freewheel path in 3.3 V, 2 A buck converter powering FPGA core logic.

IC Role / Device Role / Timing Role: Fast-recovery freewheel diode replacing slower silicon rectifiers to reduce switching loss.

Use Value: Near-zero reverse recovery charge eliminates shoot-through risk and improves light-load efficiency by ≥3%.

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)	V_RRM = 50 V, I_O = 2.0 A, V_F = 0.72 V @ 2.0 A, SMB package (R_θJA = 80 °C/W)	Higher thermal resistance requires larger copper area for same current handling; not qualified to AEC-Q101	Select if cost-sensitive industrial designs accept non-automotive qualification and can accommodate SMB footprint.
SS25HE3/57T (Vishay)	V_RRM = 50 V, I_O = 2.0 A, V_F = 0.75 V @ 2.0 A, SMA package, AEC-Q101 qualified	0.05 V higher V_F increases conduction loss by ~7% at full load; identical thermal and packaging specs	Select only if B250AQ-13-F is unavailable; verify thermal margin with 0.75 V V_F in worst-case ambient.

Compared with SB250-E3/54 and SS25HE3/57T, B250AQ-13-F offers the lowest V_F among AEC-Q101-qualified 50 V/2 A Schottkys in SMA, delivering superior efficiency in thermally constrained automotive modules while maintaining identical board space and assembly compatibility.

Availability

B250AQ-13-F is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC input protection, USB-C power adapters, and low-voltage DC/DC converters requiring stable component supply across production lifecycles.

Supply support for B250AQ-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, serving automotive, industrial, computing, and consumer markets with over 40 years of power management expertise.

The B250AQ-13-F belongs to Diodes' AEC-Q101-qualified Schottky rectifier product line, engineered specifically for high-reliability automotive power conversion and protection where low V_F, surge robustness, and PPAP readiness are mandatory.

FAQ

What is the maximum junction temperature for continuous operation?

The B250AQ-13-F has an operating junction temperature range of –65°C to +150°C. For continuous 2.0 A operation, the maximum ambient temperature is 100°C when mounted on a standard FR-4 PCB with the recommended pad layout, based on R_θJL = 25 °C/W and thermal derating curves in DS38433 Rev. 3-2.

Is B250AQ-13-F suitable for use in synchronous rectification circuits?

No - B250AQ-13-F is a passive Schottky rectifier, not a synchronous rectifier controller or MOSFET driver. It functions as a freewheel or clamp diode in nonsynchronous topologies like flyback or forward converters, where its low V_F reduces losses compared to standard PN diodes.

Does the "-13-F" suffix indicate tape-and-reel packaging?

Yes - the "-13-F" suffix denotes 5,000-piece tape-and-reel packaging in 8 mm carrier tape, compliant with EIA-481 standards, and includes lead-free, RoHS-compliant plating per Diodes Incorporated's green manufacturing specifications.

How does the guard ring construction improve reliability?

The guard ring die structure surrounds the active junction to distribute electric field stress away from sharp edges, suppressing premature avalanche breakdown during voltage transients. This extends operational life in automotive environments subject to load dump and ISO 7637-2 pulse tests.

B250AQ-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 @ 40V, 1MHz

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: SMA

Operating Temperature - Junction:: -65°C ~ 150°C

B250AQ-13-F FAQ

1.How can I place an order for B250AQ-13-F through Aetrix?

Please submit a Request for Quotation (RFQ) for B250AQ-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 B250AQ-13-F reliable?

The price and inventory of B250AQ-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 B250AQ-13-F is usually 5 days.

3.What payment methods are accepted for B250AQ-13-F?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for B250AQ-13-F transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for B250AQ-13-F?

B250AQ-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your B250AQ-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 B250AQ-13-F?

For technical support, including B250AQ-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your B250AQ-13-F requirements.

6.How does Aetrix verify that B250AQ-13-F is sourced from the original manufacturer or authorized distributors?

All B250AQ-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 B250AQ-13-F meets industry standards.

7.What is the process for return or replacement of B250AQ-13-F?

All B250AQ-13-F units undergo pre-shipment inspection (PSI). If there is an issue with B250AQ-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 B250AQ-13-F part is unused and in its original packaging.

Return procedure for B250AQ-13-F:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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