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Diodes Incorporated B150Q-13-F
- Part No.:
- B150Q-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
B150Q-13-F.pdf
- Description:
- DIODE SCHOTTKY 50V 1A SMA
- Quantity:
- Payment:
- Shipping:
Inventory:13,827
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Product details
Overview
B150Q-13-F from Diodes Incorporated is a 50 V, 1.0 A surface-mount Schottky barrier rectifier in SMA package, featuring 0.7 V max forward voltage at 1.0 A and 0.5 mA max reverse leakage at rated VR and +25°C. It delivers low power loss for DC-DC conversion, polarity protection, and freewheeling in automotive-grade 12 V systems.
For engineers reviewing the B150Q-13-F datasheet, B150Q-13-F pinout, B150Q-13-F application, or B150Q-13-F equivalent, this part supports high-reliability commercial and automotive designs requiring fast switching (12 ns trr), AEC-Q101 qualification, RoHS-compliant lead-free plating, and surge robustness up to 30 A peak.
Technical Context
This Schottky diode uses guard ring die construction to suppress transient-induced junction breakdown and enables stable operation under repetitive surge conditions. Its low VF and low CT (110 pF) support high-frequency switching in buck converters and reverse-polarity protection circuits where conduction loss and capacitive loading must be minimized.
The device operates across –65°C to +150°C with RθJA = 115°C/W on standard FR-4 PCB (2 oz Cu), and derates linearly above +125°C ambient. Thermal performance improves significantly with heatsinking: RθJA drops to 65°C/W when mounted on a 50 mm × 50 mm × 23 mm aluminum heatsink.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 50 V - Maximum repetitive reverse blocking voltage; defines safe DC/AC reverse bias limit in polarity protection and flyback clamp applications. |
| IO (avg) | 1.0 A @ TT = +130°C - Continuous average forward current rating; determines usable output capacity in 12 V automotive power rails. |
| VF (max) | 0.7 V @ IF = 1.0 A - Peak forward voltage drop; directly sets conduction loss (0.7 W at 1 A) and thermal load in compact layouts. |
| IR (max) | 0.5 mA @ VR = 50 V, TA = +25°C - Maximum reverse leakage; critical for battery-backed circuits and low-power standby modes. |
| tRR | 12 ns - Reverse recovery time; enables efficient operation >100 kHz switching without significant switching loss or ringing. |
| IFSM | 30 A (8.3 ms half-sine) - Non-repetitive surge rating; supports inrush current handling during hot-plug or load dump events. |
| RθJA | 115°C/W - Junction-to-ambient thermal resistance on standard PCB; used to calculate junction temperature rise under real operating power dissipation. |
Pinout & Package
Package: SMA (DO-214AC), molded plastic case with UL 94V-0 flammability rating, matte tin-plated terminals, cathode band polarity marking, and 0.064 g typical weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry terminal | Connected to input/source side in rectification; ties to switch node in freewheeling paths to minimize voltage overshoot. |
| Cathode | Forward current exit / reverse blocking terminal | Connected to output/load side; cathode band identifies polarity for automated optical inspection and placement verification. |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring die construction | Suppresses edge breakdown during voltage transients, enabling reliable operation in noisy automotive environments. |
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, HTRB, and ESD (HBM 4 kV), supporting PPAP documentation. |
| Lead-free & halogen-free | RoHS 3 compliant with <900 ppm Br/Cl and <1000 ppm Sb; meets global environmental and assembly requirements. |
| Low VF and fast tRR | 0.7 V @ 1 A and 12 ns recovery enable >90% efficiency in 12 V → 5 V/3.3 V buck stages at 500 kHz–1 MHz. |
Applications
| Automotive Polarity Protection | DC-DC Buck Converter Freewheeling |
|---|---|
|
Use Scenario: Protects infotainment head units and ADAS ECUs from reverse battery connection during service or jump-start. IC Role / Device Role / Timing Role: Unidirectional blocking diode placed between battery input and system VIN rail. Use Value: Prevents damage to downstream PMICs and microcontrollers with zero forward drop penalty at full load (1 A). |
Use Scenario: Freewheel path in 12 V to 3.3 V synchronous buck converter powering MCU core logic. IC Role / Device Role / Timing Role: Low-loss续流 diode conducting during high-side FET off-time; complements control FET timing. Use Value: Reduces conduction loss by 30% vs. standard PN diode, lowering thermal stress on 2-layer PCB layout. |
| USB-C Power Path Blocking | Industrial Sensor Node Reverse Leakage Control |
|
Use Scenario: Blocks backfeed from USB-C VBUS into auxiliary 5 V rail when external adapter is disconnected. IC Role / Device Role / Timing Role: Standby-mode blocking diode ensuring unidirectional power flow in dual-source systems. Use Value: 0.5 mA max IR at 5 V ensures <1 µA standby current draw-critical for battery runtime in portable diagnostics tools. |
Use Scenario: Reverse-biased protection element in 4–20 mA loop-powered sensor front-end with 24 V supply. IC Role / Device Role / Timing Role: High-voltage blocking diode isolating analog signal path from supply rail during fault conditions. Use Value: 50 V VRRM withstands industrial transients; low IR avoids measurement drift in precision current-loop receivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SB150-E3/54 (Vishay) | Same 50 V VRRM, 1.0 A IO, but VF = 0.85 V (max) at 1.0 A; SMB package (larger footprint). | Higher VF increases conduction loss by ~0.15 W at 1 A; SMB thermal resistance marginally better (RθJA ≈ 100°C/W). | Select if board space allows SMB and higher VF is acceptable for cost-sensitive non-automotive use. |
| SS15 (ON Semiconductor) | 50 V VRRM, 1.0 A IO, VF = 0.55 V (typ) at 1.0 A, but IR = 1.0 mA (max) at 25°C-double B150Q-13-F's leakage. | Lower VF improves efficiency, but higher IR may compromise accuracy in low-current sensor bias networks. | Select for efficiency-critical 12 V→5 V conversion where leakage sensitivity is low and AEC-Q101 not required. |
Compared with SB150-E3/54 and SS15, B150Q-13-F uniquely balances low VF (0.7 V), ultra-low IR (0.5 mA), AEC-Q101 compliance, and SMA footprint-making it optimal for space-constrained automotive modules needing both reliability and leakage control.
Availability
B150Q-13-F is available at Aetrix Electronics and suitable for automotive infotainment power rails, industrial sensor node protection, and USB-C dual-source power path management requiring stable component supply and long-term lifecycle assurance.
Supply support for B150Q-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.
The B150Q series belongs to Diodes' automotive-qualified Schottky rectifier product line, engineered for robust reverse polarity protection, freewheeling, and low-loss DC-DC conversion in harsh-temperature environments.
FAQ
Is B150Q-13-F suitable for automotive applications?
Yes. B150Q-13-F is AEC-Q101 qualified and PPAP capable, with tested performance across –65°C to +150°C, HBM ESD tolerance of 4 kV, and surge rating of 30 A (8.3 ms). It is explicitly designed for automotive body electronics, infotainment, and ADAS power subsystems per Diodes' DS38236 specification.
What is the thermal resistance when mounted on a standard 2-layer PCB?
On a 1×MRP FR-4 board with 2 oz copper, RθJA is 115°C/W (Note 6, DS38236 Rev. 4-2). This value assumes no heatsink and accounts for convection and conduction through the PCB. Derating curves in Figure 10 confirm 1.0 A continuous operation is viable up to +100°C ambient under these conditions.
Does B150Q-13-F have a cathode band or notch marking?
Yes. The device uses a visible cathode band on the SMA package body to indicate polarity, consistent with JEDEC DO-214AC standards. This marking is verified in the mechanical drawings and top-view diagrams in DS38236, enabling automated optical inspection and correct orientation during pick-and-place.
Can B150Q-13-F replace B140Q-13-F in an existing design?
Yes, with attention to VF and thermal margins. B150Q-13-F has higher VRRM (50 V vs. 40 V) and slightly higher VF (0.7 V vs. 0.5 V at 1.0 A), increasing conduction loss by ~0.2 W. Verify that the 10 V higher blocking margin is needed and that thermal design accommodates the extra loss before substitution.
B150Q-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):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 700 mV @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 500 µA @ 40 V
- Capacitance @ Vr, F:
- 110pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMA
- Operating Temperature - Junction:
- -65°C ~ 150°C
B150Q-13-F FAQ
1.How can I place an order for B150Q-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for B150Q-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 B150Q-13-F reliable?
The price and inventory of B150Q-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 B150Q-13-F is usually 5 days.
3.What payment methods are accepted for B150Q-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for B150Q-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for B150Q-13-F?
B150Q-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your B150Q-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 B150Q-13-F?
For technical support, including B150Q-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your B150Q-13-F requirements.
6.How does Aetrix verify that B150Q-13-F is sourced from the original manufacturer or authorized distributors?
All B150Q-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 B150Q-13-F meets industry standards.
7.What is the process for return or replacement of B150Q-13-F?
All B150Q-13-F units undergo pre-shipment inspection (PSI). If there is an issue with B150Q-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 B150Q-13-F part is unused and in its original packaging.
Return procedure for B150Q-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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