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Nexperia USA Inc. BAS40LS-QYL
- Part No.:
- BAS40LS-QYL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- SOD-882
- Datasheet:
-
BAS40LS-QYL.pdf
- Description:
- DIODE SCHOTTKY 40V 120MA 2DFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,961
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Product details
Overview
BAS40LS-Q from Nexperia is a general-purpose Schottky diode in a DFN1006BD-2 (SOD882BD) leadless ultra-small package with side-wettable flanks, rated for 40 V reverse voltage, 120 mA forward current, and 380 mV forward voltage at 1 mA. It delivers high switching speed, low leakage (1 µA at 30 V), and 5 pF capacitance, enabling use in automotive-grade voltage clamping and ultra-high-speed switching circuits.
For engineers reviewing the BAS40LS-Q datasheet, BAS40LS-Q pinout, BAS40LS-Q application, or BAS40LS-Q equivalent, this AEC-Q101-qualified Schottky diode supports AOI-compatible solder joint inspection, operates from −55 °C to +150 °C ambient, and provides validated thermal resistance (360 K/W) on FR4 PCBs - critical for space-constrained automotive signal conditioning and power rail protection designs.
Technical Context
This Schottky diode leverages a low-barrier metal-semiconductor junction to achieve fast recovery (no minority-carrier storage), sub-400 mV forward drop at low current, and minimal reverse recovery charge. Its 5 pF capacitance at 0 V and <10 µA leakage at 40 V support high-frequency clamping without signal distortion.
The DFN1006BD-2 package features side-wettable flanks for automated optical inspection of solder joints and is qualified per AEC-Q101 for automotive underhood and infotainment applications. Thermal resistance is specified at 360 K/W (junction-to-ambient, free air, standard FR4 footprint), confirming suitability for low-power dissipation scenarios.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Voltage (VR) | 40 V - Maximum blocking capability before breakdown; defines safe operating range in clamp or flyback protection. |
| Forward Current (IF) | 120 mA continuous - Sustained conduction capacity without thermal runaway on standard FR4 layout. |
| Forward Voltage (VF) | 380 mV at 1 mA - Enables low-loss biasing and logic-level clamping in battery-sensitive systems. |
| Reverse Leakage (IR) | 1 µA at 30 V - Ensures minimal standby power loss in always-on automotive modules. |
| Capacitance (Cd) | 5 pF at 0 V, 1 MHz - Supports >100 MHz signal integrity in RF detector or high-speed data line clamping. |
| Junction Temp (Tj) | 150 °C max - Allows operation in engine control units and powertrain ECUs with localized heating. |
Pinout & Package
Package: DFN1006BD-2 (SOD882BD), 1.0 mm × 0.6 mm × 0.47 mm body, 0.65 mm pitch, side-wettable flanks, cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Negative terminal; marking bar aligns with this pin; connects to protected node or ground reference in clamp topology. |
| 2 | Anode (A) | Positive terminal; ties to supply rail or signal source; polarity must be observed to prevent reverse conduction failure. |
Key Features
| Feature | Design Value |
|---|---|
| High switching speed | No minority-carrier storage enables nanosecond-scale turn-off - essential for PWM edge sharpening and ESD transient suppression. |
| Side-wettable flanks | Enables automated optical inspection (AOI) of solder fillets on both sides of the package - improves manufacturing yield in automotive SMT lines. |
| AEC-Q101 qualification | Validated for temperature cycling, HTRB, and ESD per automotive discrete stress test standard - supports PPAP documentation for Tier-1 suppliers. |
| Low capacitance (5 pF) | Minimizes loading on high-frequency signals - suitable for USB 2.0 data line clamping and CAN bus protection without bandwidth degradation. |
Applications
| Automotive Infotainment Power Rail Clamping | USB 2.0 Data Line ESD Protection |
|---|---|
Use Scenario: Clamp transients on 5 V USB VBUS and 3.3 V audio codec supplies in head unit PCBs exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Schottky clamp diode placed between rail and ground to shunt overvoltage spikes within nanoseconds. Use Value: 40 V VR rating withstands 35 V load dump surges; 380 mV VF ensures minimal quiescent drop during normal operation. |
Use Scenario: Protect differential D+ and D− lines from ±8 kV HBM ESD events per IEC 61000-4-2 in center console USB ports. IC Role / Device Role / Timing Role: Low-capacitance Schottky placed as bidirectional rail-to-rail clamp to divert ESD current away from PHY IC pins. Use Value: 5 pF Cd avoids signal integrity loss at 480 Mbps; AEC-Q101 qualification ensures reliability across vehicle lifetime. |
| Engine Control Unit (ECU) Sensor Biasing | Low-Power IoT Node Voltage Translation |
Use Scenario: Provide isolated bias for analog sensor front-ends (e.g., MAP, O2 sensors) in high-temperature under-hood ECUs. IC Role / Device Role / Timing Role: Reverse-biased Schottky used as leakage-minimized blocking element in precision current sources. Use Value: 1 µA IR at 30 V prevents drift in µA-level bias currents; 150 °C Tj rating matches ECU thermal envelope. |
Use Scenario: Level-shift 1.8 V logic signals to 3.3 V domains in battery-powered telematics modules with strict leakage budgets. IC Role / Device Role / Timing Role: Forward-biased Schottky used as passive OR-ing diode in dual-supply domain interfaces. Use Value: 380 mV VF enables efficient translation without active circuitry; DFN1006BD-2 footprint saves board area in compact modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NSR0240HT1G | Same 40 V VR, 120 mA IF, but VF = 450 mV @ 1 mA; DFN1006-2 package lacks side-wettable flanks. | Not AEC-Q101 qualified; unsuitable for automotive production without requalification. | Select only for cost-sensitive industrial prototypes where AOI and automotive compliance are not required. |
| Vishay VS-2EDH01HM3/85A | Higher 100 V VR, 200 mA IF, VF = 550 mV @ 1 mA; SOD-323 package (1.7 mm × 1.3 mm) - 3× larger footprint. | Used in industrial power supplies; incompatible with space-constrained automotive layouts. | Choose when higher voltage margin or legacy SMT process compatibility outweighs size and automotive qualification needs. |
Compared with NSR0240HT1G and VS-2EDH01HM3/85A, BAS40LS-Q uniquely combines AEC-Q101 qualification, side-wettable flanks for AOI, and ultra-small DFN1006BD-2 packaging - making it the only option that satisfies automotive production requirements for both reliability and manufacturability in tight-layout modules.
Availability
BAS40LS-Q is available at Aetrix Electronics and suitable for automotive infotainment systems, USB interface protection, engine control unit (ECU) sensor biasing, and low-power IoT node voltage translation requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for BAS40LS-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 high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified components and advanced packaging technologies.
BAS40LS-Q belongs to Nexperia's AEC-Q101-qualified Schottky diode product line, engineered specifically for automotive signal integrity, power rail protection, and space-constrained ECU designs demanding robustness and AOI-compliant manufacturability.
FAQ
Is BAS40LS-Q suitable for hot-swap applications?
Yes - its 40 V reverse voltage rating, 120 mA continuous forward current, and fast switching enable use in hot-swap controllers for 5 V and 3.3 V rails. The 380 mV forward voltage minimizes insertion loss, while the 150 °C maximum junction temperature supports operation near other heat-generating components in dense automotive modules.
What is the significance of side-wettable flanks in DFN1006BD-2?
Side-wettable flanks expose solderable metal along the vertical edges of the package, allowing automated optical inspection systems to verify solder fillet formation on both top and side surfaces. This eliminates blind spots in solder joint quality assessment - a mandatory requirement for AEC-Q200-compliant automotive assembly lines.
How does BAS40LS-Q perform under pulsed current conditions?
It supports 200 mA non-repetitive peak forward current (tp ≤ 10 ms, Tj(init) = 25 °C) and 120 mA repetitive peak current (tp ≤ 1 s, δ ≤ 0.5). These ratings allow reliable handling of short-duration transients like ESD or load dump spikes without thermal damage when mounted on standard FR4 PCBs.
Can BAS40LS-Q replace BAS40-03W in existing designs?
No - BAS40-03W uses an SOD-323 package (1.7 mm × 1.3 mm) and lacks AEC-Q101 qualification and side-wettable flanks. While electrical specs overlap, the BAS40LS-Q's smaller DFN1006BD-2 footprint, automotive qualification, and AOI capability require layout revision and revalidation for automotive use cases.
BAS40LS-QYL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SOD-882
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 40 V
- Current - Average Rectified (Io):
- 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
- Capacitance @ Vr, F:
- 5pF @ 0V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DFN1006BD-2
- Operating Temperature - Junction:
- 150°C
BAS40LS-QYL FAQ
1.How can I place an order for BAS40LS-QYL through Aetrix?
Please submit a Request for Quotation (RFQ) for BAS40LS-QYL 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 BAS40LS-QYL reliable?
The price and inventory of BAS40LS-QYL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAS40LS-QYL is usually 5 days.
3.What payment methods are accepted for BAS40LS-QYL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAS40LS-QYL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAS40LS-QYL?
BAS40LS-QYL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAS40LS-QYL 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 BAS40LS-QYL?
For technical support, including BAS40LS-QYL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAS40LS-QYL requirements.
6.How does Aetrix verify that BAS40LS-QYL is sourced from the original manufacturer or authorized distributors?
All BAS40LS-QYL 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 BAS40LS-QYL meets industry standards.
7.What is the process for return or replacement of BAS40LS-QYL?
All BAS40LS-QYL units undergo pre-shipment inspection (PSI). If there is an issue with BAS40LS-QYL, 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 BAS40LS-QYL part is unused and in its original packaging.
Return procedure for BAS40LS-QYL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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