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Diodes Incorporated BAS40W-06Q-7-F
- Part No.:
- BAS40W-06Q-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- SC-70, SOT-323
- Datasheet:
-
BAS40W-06Q-7-F.pdf
- Description:
- DIODE ARR SCHOT 40V 200MA SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:2,160
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Product details
Overview
BAS40W-06Q from Diodes Incorporated is a surface-mount Schottky barrier diode in SOT323 package, rated for 40 V peak reverse voltage, 200 mA forward current, and 1 V max forward voltage at 40 mA, with 5.0 pF capacitance at 0 V and 5.0 ns reverse recovery time. It serves as a high-speed, low-loss rectifier or clamping device in automotive power management and signal conditioning circuits.
For engineers reviewing the BAS40W-06Q datasheet, BAS40W-06Q pinout, BAS40W-06Q application, or BAS40W-06Q equivalent, key selection criteria include its AEC-Q101 qualification, ultra-low VF at low IF, sub-5 ns tRR, guard-ring-enhanced ESD robustness, and compatibility with automated SMT assembly on FR4 boards.
Technical Context
This Schottky diode uses a platinum-silicide or similar low-barrier metal–semiconductor junction to achieve fast switching and minimal forward conduction loss. Its PN junction guard ring structure provides defined edge termination for improved transient immunity and ESD tolerance up to ±8 kV HBM.
The device operates across –55°C to +125°C ambient, with thermal resistance of 625°C/W (junction-to-ambient, FR4 board), and derates linearly to zero power dissipation above +125°C. It is specified for DC blocking, polarity protection, and RF signal clamping where low capacitance and rapid turn-off are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 40 V - Maximum repetitive reverse voltage before breakdown; defines safe DC/peak AC blocking capability in power rail protection. |
| IF | 200 mA - Continuous forward current rating; sets maximum steady-state load current without thermal runaway on standard FR4 layout. |
| VF @ 40 mA | 1.0 V max - Forward voltage drop at typical operating current; directly determines conduction loss and self-heating in low-voltage rails. |
| tRR | 5.0 ns - Reverse recovery time; enables use in >10 MHz switching applications such as RF detector clamping or high-frequency DC-DC snubbing. |
| CT @ 0 V | 5.0 pF - Junction capacitance at zero bias; limits high-frequency signal distortion and insertion loss in RF paths. |
| IR @ 30 V | 200 nA max - Reverse leakage current; ensures minimal standby power loss in battery-backed or energy-sensitive circuits. |
| RθJA | 625 °C/W - Thermal resistance to ambient; requires minimum copper pour area (~25 mm²) for full-rated power dissipation at +25°C ambient. |
Pinout & Package
Package: SOT323 - ultra-small plastic surface-mount case (2.15 × 2.10 × 0.95 mm), lead-free matte tin-plated terminals, moisture sensitivity level 1, UL 94V-0 rated molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Forward current entry point | Connected to higher-potential node during conduction; must be routed with low-inductance trace for high-speed switching. |
| Cathode (Pin 2) | Forward current exit / reverse blocking terminal | Internally tied to guard ring; connects to ground or lower-potential rail; provides ESD discharge path via ring structure. |
| Case / Pin 3 | No internal connection | Thermally conductive but electrically isolated tab; may be used for mechanical anchoring or thermal relief, not for circuit connectivity. |
Key Features
| Feature | Design Value |
|---|---|
| Low forward voltage drop | VF ≤ 1.0 V @ 40 mA reduces conduction loss by ≥30% vs. comparable silicon diodes, improving efficiency in 3.3 V/5 V supply rails. |
| Fast switching speed | tRR = 5.0 ns supports operation in >10 MHz clock domains and RF envelope detection without tail current distortion. |
| PN junction guard ring | Provides defined edge termination that withstands ≥8 kV HBM ESD and suppresses avalanche-induced latch-up in transient events. |
| AEC-Q101 qualified | Validated for automotive underhood and infotainment systems per stress test requirements including temperature cycling, HTGB, and ESD. |
| Green, halogen-free construction | Meets IEC 61249-2-21:2017 with Br+Cl <1500 ppm and Sb <1000 ppm; supports end-of-life recycling and RoHS 3 compliance. |
Applications
| Automotive Power Rail Protection | USB Port Polarity Protection |
|---|---|
Use Scenario: Reverse-voltage protection on 12 V battery-fed ECUs and body control modules. IC Role / Device Role / Timing Role: Unidirectional blocking diode placed in series with input rail to prevent damage from accidental battery reversal. Use Value: Low VF minimizes voltage drop and heat generation under continuous 200 mA load; AEC-Q101 qualification ensures reliability over 15-year vehicle lifetime. | Use Scenario: Polarity safeguard in Type-A USB 2.0 downstream ports. IC Role / Device Role / Timing Role: Series-connected Schottky diode between VBUS and host controller to block reverse current if external power is misapplied. Use Value: 5 pF capacitance avoids signal integrity degradation on 480 Mbps data lines; SOT323 footprint enables placement adjacent to USB connector. |
| RF Signal Clamping | Low-Power Sensor Biasing |
Use Scenario: Input protection clamp in GPS L1-band (1.575 GHz) front-end LNAs. IC Role / Device Role / Timing Role: Shunt-connected diode to ground, limiting RF input swing to ±0.3 V while preserving linearity. Use Value: Sub-5 ns tRR prevents harmonic generation; low CT maintains impedance match and insertion loss <0.2 dB at 1.6 GHz. | Use Scenario: Bias feed network for MEMS pressure sensors in medical wearables. IC Role / Device Role / Timing Role: Isolation diode between 1.8 V supply and sensor analog output to prevent backfeed during sleep mode. Use Value: 200 nA IR at 30 V ensures <1 nW standby leakage, extending coin-cell battery life beyond 3 years. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SBAT54LT1G | Higher VF (1.2 V @ 40 mA), same SOT-23 package, no AEC-Q101 qualification | Not suitable for automotive; acceptable for consumer USB or industrial sensor nodes | Select when cost is prioritized over automotive compliance and lowest VF. |
| NSR0230HT1G | Lower IF rating (120 mA), smaller SOD-523 package, 3.5 pF CT, AEC-Q101 qualified | Better for space-constrained RF clamping; insufficient for 200 mA power rail protection | Select when board area is critical and current demand ≤120 mA. |
Compared with SBAT54LT1G and NSR0230HT1G, the BAS40W-06Q uniquely balances AEC-Q101 compliance, 200 mA current handling, and 1.0 V VF in SOT323-making it optimal for automotive power interfaces where both reliability and conduction efficiency are required.
Availability
BAS40W-06Q is available at Aetrix Electronics and suitable for automotive power management, USB port protection, RF front-end clamping, and low-power sensor biasing requiring stable component supply and long-term lifecycle support.
Supply support for BAS40W-06Q 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 BAS40W-06Q belongs to Diodes' automotive-qualified Schottky diode product line, engineered specifically for robust, low-loss DC power routing and high-frequency signal conditioning in harsh-environment electronics.
FAQ
What is the maximum junction temperature for continuous operation?
The BAS40W-06Q has an operating junction temperature range of –55°C to +125°C. At +125°C ambient, its power derating curve reduces maximum allowable dissipation to zero; full 200 mW rating applies only at ≤+25°C ambient with recommended FR4 pad layout.
Is the SOT323 package compatible with standard reflow profiles?
Yes-the SOT323 package uses matte tin-plated alloy 42 leads and is rated for moisture sensitivity level 1 (MSL-1), permitting unlimited floor life and compatibility with IPC/JEDEC J-STD-020-compliant lead-free reflow profiles up to 260°C peak.
Does the PN guard ring affect electrical performance in normal operation?
No-the guard ring is a passive, non-active junction termination structure. It does not alter forward conduction, reverse leakage, or capacitance under normal bias conditions; its sole function is to improve edge breakdown uniformity and ESD robustness during transients.
Can BAS40W-06Q replace BAS40-06 in existing designs?
Yes, with verification of layout thermal margins: both share identical electrical specs and SOT323 footprint, but BAS40W-06Q adds AEC-Q101 qualification, green molding compound, and tighter IR control (200 nA vs. 500 nA). No schematic or PCB change is needed for automotive-grade upgrade.
BAS40W-06Q-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 40 V
- Current - Average Rectified (Io) (per Diode):
- 200mA
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 40 mA
- Speed:
- Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr):
- 5 ns
- Current - Reverse Leakage @ Vr:
- 200 nA @ 30 V
- Operating Temperature - Junction:
- -55°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
BAS40W-06Q-7-F FAQ
1.How can I place an order for BAS40W-06Q-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BAS40W-06Q-7-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 BAS40W-06Q-7-F reliable?
The price and inventory of BAS40W-06Q-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAS40W-06Q-7-F is usually 5 days.
3.What payment methods are accepted for BAS40W-06Q-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAS40W-06Q-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAS40W-06Q-7-F?
BAS40W-06Q-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAS40W-06Q-7-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 BAS40W-06Q-7-F?
For technical support, including BAS40W-06Q-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAS40W-06Q-7-F requirements.
6.How does Aetrix verify that BAS40W-06Q-7-F is sourced from the original manufacturer or authorized distributors?
All BAS40W-06Q-7-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 BAS40W-06Q-7-F meets industry standards.
7.What is the process for return or replacement of BAS40W-06Q-7-F?
All BAS40W-06Q-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BAS40W-06Q-7-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 BAS40W-06Q-7-F part is unused and in its original packaging.
Return procedure for BAS40W-06Q-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAS40W-06Q-7-F Tags
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BAV99-7-F
Diodes Incorporated
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BAT54C-7-F
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BAV99,215
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BAT54S-7-F
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BAV99LT1G
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BAV99WT1G
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