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Nexperia USA Inc. BAS40-05-QVL
- Part No.:
- BAS40-05-QVL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Diode Arrays
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BAS40-05-QVL.pdf
- Description:
- DIODE ARR SCHOTTKY 40V TO-236AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,684
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Product details
Overview
BAS40-05-Q from Nexperia is a general-purpose dual Schottky diode in SOT23 package, configured as two anodes sharing a common cathode. 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 clamping and ultra-high-speed switching.
For engineers reviewing the BAS40-05-Q datasheet, BAS40-05-Q pinout, BAS40-05-Q application, or BAS40-05-Q equivalent, key selection criteria include common-cathode dual-diode topology, low VF/low Cd trade-off, pulsed forward current capability up to 120 mA, and thermal resistance of 500 K/W on FR4 PCB - critical for compact automotive signal-path designs.
Technical Context
The BAS40-05-Q integrates two independent Schottky junctions with shared cathode terminal (Pin 3), enabling bidirectional clamping or dual-path steering without external interconnect. Its low 5 pF junction capacitance and sub-400 mV forward drop at 1 mA support >100 MHz switching in RF front-ends and digital logic protection circuits.
Designed for AEC-Q101 compliance, it sustains 150 °C junction temperature and 200 mA non-repetitive peak forward current, with thermal resistance (Rth(j-a)) specified at 500 K/W under standardized FR4 mounting - confirming suitability for thermally constrained automotive control modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VR (Reverse Voltage) | 40 V - supports clamping of 3.3 V, 5 V, and 12 V logic rails against transients up to ±40 V without breakdown |
| VF @ 1 mA | 380 mV - enables low-loss voltage translation and biasing in battery-powered sensor interfaces |
| Cd @ 0 V | 5 pF - minimizes signal distortion in high-frequency data lines (e.g., USB 2.0, CAN FD stubs) |
| IR @ 30 V | 1 µA - ensures negligible standby current in always-on automotive wake-up circuits |
| IF (Continuous) | 120 mA - sufficient for ESD protection path conduction and transient absorption in LIN bus nodes |
| Rth(j-a) | 500 K/W - defines thermal derating on standard single-sided FR4; requires layout-aware copper pour for >85 °C ambient operation |
Pinout & Package
Package: SOT23 (TO-236AB), 3-terminal surface-mount plastic package, 2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode of Diode 1 (A1) | Input node for first clamping path; connects to protected signal line (e.g., MCU GPIO) |
| 2 | Anode of Diode 2 (A2) | Input node for second clamping path; used for complementary rail or differential pair protection |
| 3 | Common Cathode (K1/K2) | Shared return path to reference rail (e.g., VCC or GND); enables compact dual-diode layout without discrete wiring |
Key Features
| Feature | Design Value |
|---|---|
| Common-cathode dual configuration | Reduces PCB footprint by 40% vs. two discrete SOT23 Schottkys; eliminates routing crosstalk between cathodes |
| AEC-Q101 qualified | Validated for automotive powertrain and body electronics per stress test requirements (HTOL, TC, UHAST) |
| Low 5 pF capacitance | Maintains signal integrity in 100+ MHz clock distribution and high-speed serial links without added impedance discontinuity |
| 120 mA continuous forward rating | Handles repetitive ESD pulses (IEC 61000-4-2 Level 4) without thermal runaway on standard FR4 land patterns |
Applications
| Automotive LIN Transceiver Protection | USB 2.0 Data Line Clamping |
|---|---|
Use Scenario: Protecting LIN bus physical layer against load dump and ESD events in door module ECUs. IC Role / Device Role / Timing Role: Dual-anode clamping diode shunting transients to VBAT and GND rails via common cathode. Use Value: Prevents damage to LIN transceiver ICs during ISO 7637-2 pulse 5a (12 V system) while maintaining <1 ns response time. | Use Scenario: Suppressing ESD on D+ and D− lines of embedded USB 2.0 host ports. IC Role / Device Role / Timing Role: Low-capacitance dual Schottky directing fast transients to VDD and GND with minimal signal degradation. Use Value: Passes IEC 61000-4-2 ±15 kV contact discharge without bit errors or eye diagram closure. |
| Digital Logic Level Translation | High-Speed ADC Input Protection |
Use Scenario: Biasing and clamping 3.3 V FPGA I/O driving 5 V peripherals in industrial PLC backplanes. IC Role / Device Role / Timing Role: Dual-anode clamp limiting input swing to safe levels relative to both supply rails. Use Value: Enables reliable level-shifting without external resistors or dedicated translators; supports >50 MHz toggle rates. | Use Scenario: Safeguarding SAR ADC analog inputs from overvoltage during sensor hot-plug or fault conditions. IC Role / Device Role / Timing Role: Fast-turn-on Schottky diverting transient energy before internal ESD structures activate. Use Value: Limits input voltage to ≤0.3 V beyond rails, preserving ADC accuracy and preventing latch-up in 16-bit precision systems. |
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 | Higher VF (450 mV @ 1 mA), same 40 V VR, but lower Cd (3.5 pF); SOT-23 package | Better high-frequency isolation but higher conduction loss in low-voltage bias networks | Select when minimizing capacitive loading outweighs forward drop penalty (e.g., RF detector inputs) |
| Diodes Incorporated BAV99WQ-7-F | Same common-cathode SOT-323 package, 30 V VR, 1.25 V VF @ 50 mA; AEC-Q101 qualified | Lower voltage rating limits use to 3.3 V/5 V domains; higher VF reduces efficiency in clamping paths | Choose for cost-sensitive 3.3 V automotive modules where 40 V margin is unnecessary |
Compared with NSR20F40NXT5G and BAV99WQ-7-F, the BAS40-05-Q uniquely balances 40 V robustness, 380 mV low VF, and 5 pF capacitance in AEC-Q101-compliant SOT23 - making it optimal for mixed-voltage automotive signal conditioning where both clamping margin and speed matter.
Availability
BAS40-05-Q is available at Aetrix Electronics and suitable for automotive LIN bus protection, USB 2.0 interface clamping, and high-speed ADC input safeguarding requiring stable component supply across production lifecycles.
Supply support for BAS40-05-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 leading global semiconductor expert focused on essential efficiency-enhancing components including diodes, MOSFETs, and logic ICs, headquartered in Nijmegen, Netherlands.
The BAS40-05-Q belongs to Nexperia's AEC-Q101-qualified general-purpose Schottky diode product line, engineered specifically for automotive signal integrity and transient protection in space-constrained ECUs.
FAQ
What is the maximum junction temperature for continuous operation?
The BAS40-05-Q has a maximum junction temperature (Tj) of 150 °C, verified per IEC 60134 limiting values. Continuous operation at this limit requires thermal design that maintains Rth(j-a) ≤ 500 K/W on FR4 PCB with defined solder land pattern - exceeding this thermal resistance risks premature parametric shift or failure.
Can BAS40-05-Q be used in place of a single Schottky diode?
Yes, but only one anode (Pin 1 or Pin 2) should be used with the common cathode (Pin 3), leaving the unused anode unconnected. Using both anodes simultaneously requires shared cathode routing - it cannot function as two independent diodes with separate cathodes due to its fixed internal connection.
Is the 40 V reverse voltage rating DC or pulsed?
The 40 V VR rating is a DC absolute maximum value specified at Tj = 25 °C per IEC 60134. It applies continuously - not just pulsed - and must be derated linearly above 25 °C ambient using the device's thermal characteristics and PCB layout. Exceeding 40 V DC risks irreversible junction breakdown.
How does the AEC-Q101 qualification impact reliability in non-automotive use?
AEC-Q101 qualification subjects the BAS40-05-Q to accelerated stress tests (HTOL, temperature cycling, HTRB) far exceeding industrial-grade requirements. This translates to >10× longer FIT rate and proven robustness in harsh environments - beneficial for industrial IoT gateways, medical monitors, and aerospace avionics where field reliability is critical.
BAS40-05-QVL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- 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):
- 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:
- TO-236AB
BAS40-05-QVL FAQ
1.How can I place an order for BAS40-05-QVL through Aetrix?
Please submit a Request for Quotation (RFQ) for BAS40-05-QVL 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 BAS40-05-QVL reliable?
The price and inventory of BAS40-05-QVL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAS40-05-QVL is usually 5 days.
3.What payment methods are accepted for BAS40-05-QVL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAS40-05-QVL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAS40-05-QVL?
BAS40-05-QVL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAS40-05-QVL 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 BAS40-05-QVL?
For technical support, including BAS40-05-QVL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAS40-05-QVL requirements.
6.How does Aetrix verify that BAS40-05-QVL is sourced from the original manufacturer or authorized distributors?
All BAS40-05-QVL 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 BAS40-05-QVL meets industry standards.
7.What is the process for return or replacement of BAS40-05-QVL?
All BAS40-05-QVL units undergo pre-shipment inspection (PSI). If there is an issue with BAS40-05-QVL, 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 BAS40-05-QVL part is unused and in its original packaging.
Return procedure for BAS40-05-QVL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAS40-05-QVL 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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