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Nexperia USA Inc. BAS40-06W-QF
- Part No.:
- BAS40-06W-QF
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Diode Arrays
- Package:
- SC-70, SOT-323
- Datasheet:
-
BAS40-06W-QF.pdf
- Description:
- DIODE ARR SCHOT 40V 120MA SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:6,768
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Product details
Overview
BAS40-06W-QF from Nexperia is a general-purpose dual Schottky diode in SOT323 (SC-70) package, configured as a common-anode dual diode for ultra-high-speed switching and voltage clamping. It delivers 40 V reverse voltage rating, 380 mV forward voltage at 1 mA, 5 pF capacitance at 0 V, 1 µA reverse leakage at 30 V, and AEC-Q101 qualification for automotive use.
For engineers reviewing the BAS40-06W-QF datasheet, BAS40-06W-QF pinout, BAS40-06W-QF application, or BAS40-06W-QF equivalent, key selection criteria include low VF for efficiency-critical bias networks, low Cd for RF/switching node integrity, AEC-Q101 compliance for under-hood deployment, and common-anode topology for dual-rail clamping or OR-ing.
Technical Context
This dual Schottky diode integrates two independent junctions sharing a single anode terminal, enabling compact dual-path protection or signal routing without discrete pairing. Its low 5 pF capacitance and sub-400 mV forward drop support high-frequency (>100 MHz) clamping and fast transient response in DC-DC feedback paths.
The device operates across −65 °C to +150 °C ambient, with thermal resistance of 625 K/W (junction-to-ambient, FR4 PCB), and maintains stable leakage (<10 µA at 40 V) up to 125 °C - critical for automotive power rail monitoring and ESD front-end stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Voltage (VR) | 40 V - supports 36 V automotive systems with 10 % margin against load dump transients |
| Forward Voltage (VF) | 380 mV @ 1 mA - minimizes conduction loss in low-current bias and sensing circuits |
| Reverse Leakage (IR) | 1 µA @ 30 V - ensures minimal standby current in always-on automotive modules |
| Capacitance (Cd) | 5 pF @ 0 V, 1 MHz - preserves signal integrity in RF detector and high-speed logic clamp applications |
| Junction Temp (Tj) | 150 °C max - enables placement near hot components (e.g., power MOSFETs, DC-DC inductors) |
| Thermal Resistance | 625 K/W - defines minimum PCB copper area needed for thermal management on standard FR4 |
Pinout & Package
Package: SOT323 (SC-70), 3-terminal surface-mount plastic package, 2.0 mm × 1.25 mm × 0.95 mm body, 1.3 mm lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | K1 (Cathode, Diode 1) | Output node for first Schottky path; connects to protected signal or rail |
| 2 | K2 (Cathode, Diode 2) | Output node for second Schottky path; enables independent clamping of dual signals |
| 3 | A1/A2 (Common Anode) | Shared input node tied to reference (e.g., VCC or ground); defines common-polarity configuration |
Key Features
| Feature | Design Value |
|---|---|
| High Switching Speed | Sub-nanosecond recovery enabled by Schottky barrier - suitable for >500 MHz clamping |
| Low Capacitance | 5 pF typical - avoids loading of high-impedance nodes in RF detector and clock line protection |
| AEC-Q101 Qualified | Stress-tested per automotive discrete standard - validated for engine control, body electronics, and ADAS sensors |
| Common-Anode Dual Configuration | Single-package dual-diode topology - reduces board space vs. two discrete SOT23 devices by 40 % |
Applications
| Automotive Power Rail Protection | RF Signal Detector Clamping |
|---|---|
Use Scenario: Clamp transients on 12 V/24 V battery-supplied microcontroller I/O lines in door modules and lighting ECUs. IC Role / Device Role / Timing Role: Dual cathode terminals independently protect two signal lines (e.g., LIN bus and wake-up input), while shared anode ties to VBAT. Use Value: Prevents latch-up and ESD damage without adding series resistance or propagation delay. |
Use Scenario: Limit RF envelope detector output swing in AM/FM tuner front-ends. IC Role / Device Role / Timing Role: Common-anode configuration clamps positive peaks to VCC and negative peaks to GND using two matched Schottky junctions. Use Value: Maintains detector linearity with <5 pF parasitic capacitance and <400 mV forward threshold. |
| DC-DC Feedback Loop Protection | USB Data Line ESD Suppression |
Use Scenario: Protect voltage divider nodes in adjustable buck converter feedback paths from overshoot during startup or load steps. IC Role / Device Role / Timing Role: Cathodes connect to FB+ and FB− nodes; common anode tied to regulated output - provides bidirectional clamping. Use Value: Ensures stable regulation by limiting FB node excursions beyond ±0.5 V without affecting DC accuracy. |
Use Scenario: Suppress ESD events on USB 2.0 D+ and D− lines before entering USB transceiver ICs. IC Role / Device Role / Timing Role: Each cathode routes to D+ and D−; common anode grounded - forms low-capacitance bidirectional TVS pair. Use Value: Meets IEC 61000-4-2 Level 4 (±15 kV air) with <5 pF loading to preserve signal rise/fall times. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NSR0230HT1G | SOT-23 package (larger footprint), 30 V VR, 420 mV VF @ 1 mA, no AEC-Q101 certification | Limited to non-automotive consumer/industrial use; higher VF increases bias loss in low-power sensors | Select when cost sensitivity outweighs automotive qualification and board space constraints |
| Vishay SDURB140Q-13 | SOD-323 package, 40 V VR, 450 mV VF @ 1 mA, 8 pF Cd, AEC-Q101 qualified | Higher capacitance degrades RF performance above 200 MHz; larger package requires more PCB area | Prefer for high-temp industrial environments where 8 pF is acceptable and SOD-323 layout is standardized |
Compared with NSR0230HT1G and SDURB140Q-13, the BAS40-06W-QF uniquely combines AEC-Q101 qualification, 5 pF capacitance, and SOT323 size - making it optimal for space-constrained automotive signal protection where RF integrity and transient immunity are co-required.
Availability
BAS40-06W-QF is available at Aetrix Electronics and suitable for automotive body control modules, USB interface protection circuits, and DC-DC feedback loop safeguarding requiring stable component supply and long-term lifecycle assurance.
Supply support for BAS40-06W-QF 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
Nexperia is a global semiconductor expert focused on high-volume, high-reliability essential semiconductors - delivering discrete, logic, and MOSFET solutions optimized for automotive, industrial, and mobile applications.
The BAS40-06W-QF belongs to Nexperia's AEC-Q101-qualified Schottky diode portfolio, engineered specifically for robust signal-level protection and clamping in harsh automotive environments.
FAQ
What is the maximum continuous forward current for BAS40-06W-QF?
The absolute maximum continuous forward current is 120 mA per diode, as defined in the IEC 60134 Absolute Maximum Ratings. Derating is required above 25 °C ambient: Rth(j-a) = 625 K/W implies ~100 mA usable at 85 °C ambient on standard FR4 PCB with recommended solder land pattern.
Can BAS40-06W-QF be used as a replacement for a single Schottky diode?
Yes - either cathode (Pin 1 or Pin 2) can be used independently with the common anode (Pin 3) as the anode terminal, effectively operating one half of the dual diode. The unused cathode must be left floating or tied to a non-conflicting potential; it does not require termination.
Is the marking code '66%' consistent across all production lots?
Yes - the top-side marking is '66%' where '%' is a placeholder for the manufacturing site code (e.g., '66A' for one facility, '66B' for another). This matches Nexperia's standard SOT323 marking convention and is verified in Table 4 of the official datasheet.
Does BAS40-06W-QF support wave soldering?
Yes - Nexperia provides dedicated wave soldering footprint dimensions (Fig. 7) and process guidelines. The SC-70 package is qualified for both reflow and wave soldering; recommended solder mask and land patterns are specified in Figures 6 and 7 of the datasheet.
BAS40-06W-QF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Common Anode
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 40 V
- Current - Average Rectified (Io) (per Diode):
- 120mA
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 40 mA
- Speed:
- Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 10 µA @ 40 V
- Operating Temperature - Junction:
- 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
BAS40-06W-QF FAQ
1.How can I place an order for BAS40-06W-QF through Aetrix?
Please submit a Request for Quotation (RFQ) for BAS40-06W-QF 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 BAS40-06W-QF reliable?
The price and inventory of BAS40-06W-QF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAS40-06W-QF is usually 5 days.
3.What payment methods are accepted for BAS40-06W-QF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAS40-06W-QF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAS40-06W-QF?
BAS40-06W-QF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAS40-06W-QF 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 BAS40-06W-QF?
For technical support, including BAS40-06W-QF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAS40-06W-QF requirements.
6.How does Aetrix verify that BAS40-06W-QF is sourced from the original manufacturer or authorized distributors?
All BAS40-06W-QF 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 BAS40-06W-QF meets industry standards.
7.What is the process for return or replacement of BAS40-06W-QF?
All BAS40-06W-QF units undergo pre-shipment inspection (PSI). If there is an issue with BAS40-06W-QF, 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 BAS40-06W-QF part is unused and in its original packaging.
Return procedure for BAS40-06W-QF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAS40-06W-QF Tags
-
BAV99-7-F
Diodes Incorporated
-
BAT54C-7-F
Diodes Incorporated
-
BAV99,215
Nexperia USA Inc.
-
BAT54SLT1G
onsemi
-
BAV70LT1G
onsemi
-
BAT54CLT1G
onsemi
-
BAT54S-7-F
Diodes Incorporated
-
BAV99LT1G
onsemi
-
BAT54S,215
Nexperia USA Inc.
-
BAS40-04LT1G
onsemi
-
MMBD1503-TP
Micro Commercial Co
-
BAV99WT1G
onsemi
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