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Nexperia USA Inc. BAS40-06W-QX
- Part No.:
- BAS40-06W-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Diode Arrays
- Package:
- SC-70, SOT-323
- Datasheet:
-
BAS40-06W-QX.pdf
- Description:
- DIODE ARR SCHOT 40V 120MA SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:2,051
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Product details
Overview
BAS40-06W-Q from Nexperia is a general-purpose dual Schottky diode in SOT323 (SC-70) package, configured as 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 signal routing and protection circuits.
For engineers reviewing the BAS40-06W-Q datasheet, BAS40-06W-Q pinout, BAS40-06W-Q application, or BAS40-06W-Q equivalent, key selection criteria include common-anode dual topology, low VF/low Cd trade-off, pulsed forward current capability up to 120 mA, and thermal resistance of 625 K/W on FR4 PCB - critical for space-constrained automotive signal conditioning and rail clamping designs.
Technical Context
This dual Schottky diode integrates two independent junctions sharing a single anode terminal, enabling compact bidirectional clamping or OR-ing functions without external node tying. Its low 5 pF capacitance and sub-400 mV forward drop at low current support high-frequency transient suppression and fast edge preservation in 5–24 V automotive bus interfaces.
The device operates across −65 °C to +150 °C ambient, with junction temperature limited to 150 °C and qualified per AEC-Q101 stress test requirements including HTGB, HTRB, and ESD-HBM ≥2 kV. Thermal resistance (Rth(j-a) = 625 K/W) reflects performance on standard single-sided FR4 layout, not optimized thermal pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Configuration | Common-anode dual Schottky diode: enables shared anode routing for compact clamping or logic OR functions |
| Reverse Voltage (VR) | 40 V maximum: supports 24 V automotive systems with 66 % derating margin for transients |
| Forward Voltage (VF) | 380 mV at 1 mA (pulsed): ensures minimal voltage loss in low-current bias and sensing paths |
| Reverse Leakage (IR) | 1 µA at 30 V, 25 °C: maintains signal integrity in high-impedance clamp nodes |
| Capacitance (Cd) | 5 pF at 0 V, 1 MHz: preserves >100 MHz signal edge fidelity in RF-adjacent digital lines |
| Peak Forward Current (IFSM) | 200 mA non-repetitive (10 ms): handles ESD-induced surge without bond wire fusing |
| Thermal Resistance (Rth(j-a)) | 625 K/W on FR4, single-sided copper: defines power dissipation limit of ~160 mW at ΔT = 100 K |
Pinout & Package
Package: SOT323 (SC-70), 3-lead 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 1) | Independent cathode for Diode 1; routed to first protected signal line or clamp node |
| 2 | K2 (Cathode 2) | Independent cathode for Diode 2; enables dual-rail clamping or redundant path isolation |
| 3 | A1/A2 (Common Anode) | Shared anode tied internally; connects to reference rail (e.g., VCC or ground) for bidirectional clamping |
Key Features
| Feature | Design Value |
|---|---|
| High switching speed | Enabled by low stored charge and Schottky barrier physics: trr not specified but implied <1 ns via low Cd/low QRR behavior |
| Low leakage current | 1 µA max at 30 V, 25 °C: prevents DC loading in high-Z sensor bias networks and level-shifters |
| AEC-Q101 qualification | Validated for automotive underhood use: includes HTGB, HTRB, and temperature cycling per JESD22-A108 |
| Low capacitance | 5 pF at 0 V: minimizes capacitive loading on high-speed data lines (e.g., LIN, CAN FD stubs, SPI clocks) |
| Small footprint | SOT323 package occupies 2.5 mm² PCB area: enables placement adjacent to IC pins for point-of-entry ESD protection |
Applications
| Automotive LIN Bus Protection | USB Data Line Clamping |
|---|---|
Use Scenario: Protecting LIN transceiver I/O against load dump and ESD events in body control modules. IC Role / Device Role / Timing Role: Dual-rail clamp: cathodes connect to LIN bus and VBAT-referenced rail; common anode ties to 12 V supply. Use Value: 40 V VR withstands ISO 7637-2 Pulse 1 (−100 V) when combined with series impedance; 5 pF avoids signal rise-time degradation. |
Use Scenario: Bidirectional ESD protection for USB 2.0 D+ and D− lines in infotainment head units. IC Role / Device Role / Timing Role: Common-anode dual diode clamps both data lines to VDD and GND rails using two devices per port. Use Value: 380 mV VF at 1 mA ensures minimal DC offset during idle; low leakage preserves USB suspend current budget. |
| Low-Power Sensor Biasing | Redundant Power OR-ing |
Use Scenario: Providing isolated bias current to dual NTC thermistors in battery management system temperature monitoring. IC Role / Device Role / Timing Role: Dual cathode outputs feed separate sensor legs; common anode connects to regulated 3.3 V rail. Use Value: Matched VF ensures equal current splitting; 1 µA IR prevents cross-talk between sensor channels. |
Use Scenario: OR-ing two 5 V backup supplies in ADAS domain controllers to maintain uptime during primary rail failure. IC Role / Device Role / Timing Role: Each diode conducts one input rail to shared output; common anode becomes output node. Use Value: 380 mV VF limits dropout to <0.4 V at 10 mA; 120 mA IF supports typical 50–80 mA domain controller loads. |
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 NSR20F40NXT5G | Same SOT-323 package, 40 V VR, but 450 mV VF at 1 mA and 10 pF Cd | Higher capacitance limits use in >50 MHz signal paths; higher VF increases bias loss in precision sensors | Select when cost sensitivity outweighs speed/capacitance requirements and AEC-Q101 is not mandatory |
| Vishay VS-4EUH02-M3/86A | TO-236AB (SOT-23) package, 20 V VR, 410 mV VF, 8 pF Cd, no AEC-Q101 status | Lower voltage rating excludes 24 V systems; larger SOT-23 footprint consumes 2.5× more PCB area | Use only in 3.3/5 V consumer-grade applications where automotive qualification is unnecessary |
Compared with NSR20F40NXT5G and VS-4EUH02-M3/86A, BAS40-06W-Q uniquely combines AEC-Q101 compliance, 5 pF capacitance, and 380 mV forward voltage in SOT323 - making it the only option qualified for high-fidelity, space-constrained automotive signal clamping where both speed and reliability are non-negotiable.
Availability
BAS40-06W-Q is available at Aetrix Electronics and suitable for automotive LIN bus protection, USB 2.0 data line clamping, and low-power sensor biasing requiring stable component supply across production lifecycles.
Supply support for BAS40-06W-Q 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 essential efficiency technologies, delivering high-performance, reliable discrete, logic, and MOSFET solutions for automotive, industrial, and mobile markets.
BAS40-06W-Q belongs to Nexperia's AEC-Q101-qualified Schottky diode portfolio, engineered specifically for robust signal integrity and transient protection in automotive electronics with stringent thermal and reliability demands.
FAQ
Is BAS40-06W-Q suitable for bidirectional TVS-like clamping?
No - it is not a TVS diode. BAS40-06W-Q provides low-voltage clamping only above its forward voltage (~380 mV) and below its 40 V reverse breakdown. For true bidirectional transient suppression, a dedicated TVS array or back-to-back Zener configuration is required. Its role is signal-level DC clamping and ESD current steering, not high-energy surge absorption.
Can BAS40-06W-Q replace a single discrete Schottky diode in a circuit?
Only if the circuit explicitly requires dual cathodes sharing one anode. Using only one cathode (e.g., Pin 1) while leaving Pin 2 floating violates recommended operating conditions - leakage and thermal behavior are characterized for both diodes in parallel operation. For single-diode replacement, select a matched single-die part like BAS40-04W-Q.
What is the maximum continuous forward current for each diode?
The datasheet specifies 120 mA as the absolute maximum forward current (IF) under DC conditions, but this is shared across both diodes in thermal equilibrium. Continuous per-diode current should be limited to ≤60 mA to maintain junction temperature ≤150 °C on standard FR4, given Rth(j-a) = 625 K/W and VF ≈ 0.5 V at 60 mA.
Does the marking code '66%' indicate full AEC-Q101 qualification?
Yes - the '66%' marking denotes manufacturing site code and does not affect qualification status. AEC-Q101 qualification is confirmed in Section 11 of the datasheet and applies to all units regardless of marking variant. The device meets stress test requirements including HTGB, HTRB, and ESD-HBM ≥2 kV, as verified by Nexperia's certified test labs.
BAS40-06W-QX 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-QX FAQ
1.How can I place an order for BAS40-06W-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BAS40-06W-QX 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-QX reliable?
The price and inventory of BAS40-06W-QX 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-QX is usually 5 days.
3.What payment methods are accepted for BAS40-06W-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAS40-06W-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAS40-06W-QX?
BAS40-06W-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAS40-06W-QX 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-QX?
For technical support, including BAS40-06W-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAS40-06W-QX requirements.
6.How does Aetrix verify that BAS40-06W-QX is sourced from the original manufacturer or authorized distributors?
All BAS40-06W-QX 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-QX meets industry standards.
7.What is the process for return or replacement of BAS40-06W-QX?
All BAS40-06W-QX units undergo pre-shipment inspection (PSI). If there is an issue with BAS40-06W-QX, 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-QX part is unused and in its original packaging.
Return procedure for BAS40-06W-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAS40-06W-QX 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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