Nexperia USA Inc. BAS40XYF
- Part No.:
- BAS40XYF
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Diode Arrays
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
BAS40XYF.pdf
- Description:
- DIODE ARR SCHOT 40V 120MA 6TSSOP
- Quantity:
- Payment:

- Shipping:

Inventory:9,130
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Product details
Overview
BAS40XY from Nexperia is a general-purpose quadruple Schottky diode in SOT363-3 (TSSOP6) package, configured as four independent diodes with shared anode/cathode terminals across pins 1–6. 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 high-speed switching.
For engineers reviewing the BAS40XY datasheet, BAS40XY pinout, BAS40XY application, or BAS40XY equivalent, this device supports ultra-high-speed discrete-level protection in space-constrained automotive ECUs, USB/PCIe interface rail clamping, and multi-rail logic-level translation where low VF, low Cd, and thermal robustness are critical selection criteria.
Technical Context
The BAS40XY integrates four monolithic Schottky junctions in a single TSSOP6 package with cross-coupled pinning: Diode 1 (A1/K1), Diode 2 (A2/K2), Diode 3 (A3/K3), Diode 4 (A4/K4), where pins 3 and 6 serve dual roles (A3/K4 and K1/A2 respectively). This layout enables compact dual-channel bidirectional clamping or independent rail protection without external routing.
Its 216 K/W junction-to-solder-point thermal resistance, 150 °C max junction temperature, and AEC-Q101 qualification confirm suitability for under-hood automotive modules operating across −40 °C to +125 °C ambient, with pulsed IF ratings up to 200 mA non-repetitive peak current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Voltage (VR) | 40 V - Supports clamping of 3.3 V, 5 V, and 12 V logic rails against transients up to ±40 V without breakdown. |
| Forward Voltage (VF) | 380 mV @ 1 mA - Enables low-loss signal steering and biasing in battery-sensitive portable systems. |
| Reverse Leakage (IR) | 1 µA @ 30 V - Ensures minimal standby power loss in always-on automotive sensor interfaces. |
| Diode Capacitance (Cd) | 5 pF @ 0 V, 1 MHz - Preserves signal integrity in >100 MHz digital I/O lines and high-speed data paths. |
| Thermal Resistance (Rth(j-sp)) | 216 K/W - Allows direct PCB copper pour heat sinking via pins 2, 3, 5, and 6 for sustained 120 mA operation. |
| AEC-Q101 Qualified | Validated for automotive use - Meets stress test requirements for temperature cycling, HTRB, and ESD per AEC standard. |
Pinout & Package
Package: SOT363-3 (TSSOP6), 2.2 mm × 1.35 mm × 0.95 mm body, 0.65 mm lead pitch, plastic surface-mount package with exposed solderable leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (D1) | Input node for first Schottky diode; connects to protected signal line requiring cathode-side clamping. |
| 2 | Cathode (D2) | Return path for second diode; tied to reference rail (e.g., GND or VCC) in clamp configuration. |
| 3 | Anode (D3) / Cathode (D4) | Dual-function terminal enabling compact back-to-back or series-connected diode pairs without external traces. |
| 4 | Anode (D4) | Independent anode for fourth diode; used in differential or complementary clamping topologies. |
| 5 | Cathode (D3) | Return for third diode; paired with Pin 3 to form full bridge or dual-rail clamp structure. |
| 6 | Cathode (D1) / Anode (D2) | Shared terminal allowing interconnection of D1 and D2 in series or anti-parallel arrangements on PCB. |
Key Features
| Feature | Design Value |
|---|---|
| High switching speed | Sub-nanosecond recovery enables clamping of fast ESD pulses (IEC 61000-4-2 Level 4) without signal distortion. |
| Low leakage current | ≤1 µA at 30 V ensures <1 µW standby dissipation per diode in always-on CAN/LIN bus terminations. |
| Low capacitance | 5 pF total junction capacitance preserves rise/fall times in 100 Mbps+ digital interfaces (e.g., USB 2.0). |
| AEC-Q101 qualification | Validated for automotive Grade 2 (−40 °C to +105 °C ambient) operation with 1000-cycle temperature cycling compliance. |
| Compact SOT363-3 footprint | Replaces four discrete SOD-323 diodes, saving ≥60% board area in multi-rail ESD protection layouts. |
Applications
| Automotive Body Control Module (BCM) | USB 2.0 Data Line Protection |
|---|---|
Use Scenario: Clamping transient spikes on LIN bus lines and door actuator control signals in harsh vehicle environments. IC Role / Device Role / Timing Role: Discrete Schottky clamp protecting microcontroller GPIOs and transceiver inputs from load-dump and ISO 7637-2 pulses. Use Value: 40 V VR withstands 12 V system load-dump events; AEC-Q101 status guarantees reliability over 15-year vehicle lifetime. |
Use Scenario: Bidirectional ESD suppression on D+ and D− lines of embedded USB host ports in infotainment head units. IC Role / Device Role / Timing Role: Four-diode array providing symmetrical clamping to VBUS and GND without adding propagation delay. Use Value: 5 pF capacitance avoids signal integrity degradation at 480 Mbps; 380 mV VF minimizes DC offset in data eye diagrams. |
| Industrial PLC Digital Input Card | Multi-Rail Power Sequencing Monitor |
Use Scenario: Protecting 24 V DC input channels from field-wiring induced surges and polarity reversal during maintenance. IC Role / Device Role / Timing Role: Quadruple clamp isolating each channel's optocoupler input while sharing common return paths. Use Value: Dual-terminal pinning (Pins 3 & 6) reduces trace count by 33% versus discrete diodes; 200 mA IFSM handles 10 ms surge events. |
Use Scenario: Monitoring voltage sequencing order between 1.8 V, 3.3 V, and 5 V rails in FPGA-based edge AI accelerators. IC Role / Device Role / Timing Role: Four independent Schottky diodes acting as active OR-ing elements and rail-directional voltage comparators. Use Value: Matched VF across diodes ensures ≤10 mV sequencing window error; low IR prevents false triggering during low-power sleep states. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quadruple Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NSR4004MR6T1G | Same SOT-563 package, but only 30 V VR and 450 mV VF @ 1 mA; no AEC-Q101 certification. | Limited to consumer-grade 3.3 V/5 V systems; unsuitable for automotive 12 V transients or extended temperature operation. | Select when cost sensitivity outweighs automotive qualification and 40 V margin requirements. |
| Vishay VS-4EDH01-M3/84A | SOT-363 package, 40 V VR, but 420 mV VF @ 1 mA and 10 pF Cd; AEC-Q101 qualified. | Higher capacitance degrades >50 MHz signal edges; acceptable for slower CAN FD or SENT sensor interfaces. | Prefer when higher leakage tolerance (2 µA @ 30 V) is acceptable and board layout allows minor Cd trade-off. |
Compared with NSR4004MR6T1G and VS-4EDH01-M3/84A, the BAS40XY uniquely balances 40 V VR, 380 mV VF, 5 pF Cd, and AEC-Q101 in one package-making it optimal for space-constrained, high-speed automotive clamping where all three parameters must be simultaneously minimized.
Availability
BAS40XY is available at Aetrix Electronics and suitable for automotive body electronics, USB interface protection, industrial PLC input conditioning, and multi-rail power sequencing requiring stable component supply with long-term lifecycle assurance.
Supply support for BAS40XY 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, serving automotive, industrial, mobile, and computing markets with discrete, logic, and MOSFET solutions.
The BAS40XY belongs to Nexperia's AEC-Q101-qualified Schottky diode portfolio, engineered specifically for compact, high-speed transient protection in automotive signal chains and industrial I/O interfaces.
FAQ
What is the maximum continuous forward current rating for BAS40XY?
The BAS40XY has a continuous forward current rating of 120 mA per diode, specified at Tamb = 25 °C with derating above 25 °C ambient. The device achieves this with a thermal resistance of 216 K/W from junction to solder point, enabling reliable operation when mounted on adequate copper area.
Can BAS40XY be used in bidirectional ESD protection configurations?
Yes - its pinning (e.g., Pin 3 = A3/K4, Pin 6 = K1/A2) allows direct implementation of back-to-back Schottky pairs across differential lines like USB D+/D− or CAN H/L without external components, delivering symmetrical ±8 kV IEC 61000-4-2 ESD clamping.
Is the BAS40XY pin-compatible with older BAS40 variants?
No - the BAS40XY uses SOT363-3 (TSSOP6) with specific dual-role pinning (Pins 3 and 6), whereas legacy BAS40 parts (e.g., BAS40-04, BAS40W) use SOT-23 or SOT-323 packages with different pin counts and assignments; PCB redesign is required for migration.
What is the typical reverse recovery time of BAS40XY?
The BAS40XY is a Schottky diode with no minority-carrier storage; its reverse recovery is effectively instantaneous (<100 ps), confirmed by sub-nanosecond switching behavior in pulse response testing - making it suitable for clamping >1 GHz ESD transients without tail current.
BAS40XYF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Diode Configuration:
- 2 Pair Series Connection
- 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:
- 6-TSSOP
BAS40XYF FAQ
1.How can I place an order for BAS40XYF through Aetrix?
Please submit a Request for Quotation (RFQ) for BAS40XYF 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 BAS40XYF reliable?
The price and inventory of BAS40XYF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAS40XYF is usually 5 days.
3.What payment methods are accepted for BAS40XYF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAS40XYF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAS40XYF?
BAS40XYF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAS40XYF 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 BAS40XYF?
For technical support, including BAS40XYF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAS40XYF requirements.
6.How does Aetrix verify that BAS40XYF is sourced from the original manufacturer or authorized distributors?
All BAS40XYF 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 BAS40XYF meets industry standards.
7.What is the process for return or replacement of BAS40XYF?
All BAS40XYF units undergo pre-shipment inspection (PSI). If there is an issue with BAS40XYF, 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 BAS40XYF part is unused and in its original packaging.
Return procedure for BAS40XYF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAS40XYF 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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