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Diodes Incorporated BAS40DW-04-7-F
- Part No.:
- BAS40DW-04-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
BAS40DW-04-7-F.pdf
- Description:
- DIODE ARR SCHOT 40V 200MA SOT363
- Quantity:
- Payment:
- Shipping:
Inventory:10,694
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Product details
Overview
BAS40DW-04-7-F from Diodes Incorporated is a dual-channel Schottky barrier diode array in SOT363 package, rated for 40 V peak reverse voltage, 200 mA continuous forward current, and 5.0 ns reverse recovery time. It delivers low forward voltage (380 mV at 1.0 mA) and ultra-low capacitance (5.0 pF at 0 V), enabling high-speed signal clamping and polarity protection in space-constrained DC-DC converter feedback paths.
For engineers reviewing the BAS40DW-04-7-F datasheet, BAS40DW-04-7-F pinout, BAS40DW-04-7-F application, or BAS40DW-04-7-F equivalent, key selection criteria include its dual common-cathode configuration, 625 °C/W thermal resistance, AEC-Q101 readiness, and compatibility with 0.65 mm pitch PCB layouts in automotive body control modules and USB port protection circuits.
Technical Context
This dual Schottky array integrates two independent anode-cathode junctions sharing a common cathode terminal (Pin 3), forming a single-package solution for bidirectional voltage clamping or dual-rail ESD protection. Its guard-ringed PN junction suppresses transient-induced latch-up while maintaining sub-1 V forward conduction across -55 °C to +125 °C.
The device operates without minority-carrier storage delay, achieving 5.0 ns reverse recovery via majority-carrier conduction-critical for >10 MHz switching node snubbing and high-frequency rectification in synchronous buck converters where parasitic inductance must be minimized.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 40 V - Maximum repetitive reverse blocking capability without breakdown |
| IFM | 200 mA - Continuous forward current per diode channel under FR-4 board conditions |
| tRR | 5.0 ns - Time to transition from forward conduction to full reverse blocking state |
| VF @ 1 mA | 380 mV - Low forward drop enabling minimal power loss in bias networks |
| CT @ 0 V | 5.0 pF - Ultra-low junction capacitance preserving signal integrity above 100 MHz |
| RθJA | 625 °C/W - Thermal resistance defining junction-to-ambient temperature rise per watt dissipated |
| IR @ 30 V | 200 nA - Leakage current level ensuring negligible standby power draw in battery-backed circuits |
Pinout & Package
Package: SOT363 - 6-pin ultra-small surface-mount plastic package (2.0 × 2.225 × 0.9 mm), moisture sensitivity level 1, matte tin-plated leads solderable per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (A1) | Anode of Diode 1 | Input terminal for first Schottky junction; connects to positive rail or signal source |
| 2 (A2) | Anode of Diode 2 | Independent input terminal for second Schottky junction; enables dual-rail clamping |
| 3 (C) | Common Cathode | Shared output node; ties both diodes to ground or reference potential |
| 4 (NC) | No Connect | Internally unconnected pin; must remain floating per datasheet |
| 5 (A3) | Not Used in BAS40DW-04 | Reserved for alternate variants (e.g., BAS40TW); electrically isolated in this part |
| 6 (C2) | Not Used in BAS40DW-04 | Unused terminal; no internal bond wire; requires no PCB trace |
Key Features
| Feature | Design Value |
|---|---|
| Low VF at low current | 380 mV @ 1 mA enables precision voltage referencing in sensor biasing networks |
| Guard-ringed junction | Integrated PN ring suppresses ESD-induced failure up to ±8 kV HBM without external TVS |
| Ultra-fast tRR | 5.0 ns recovery supports clean edge transitions in 10–50 MHz clock distribution paths |
| Halogen- and antimony-free | <900 ppm Br/Cl, <1000 ppm Sb meets automotive "Green" material compliance requirements |
Applications
| USB 2.0 Data Line Protection | Automotive LED Driver Feedback Clamp |
|---|---|
Use Scenario: Protecting D+ and D− lines against ESD events during hot-plug insertion in infotainment head units. IC Role / Device Role / Timing Role: Dual-channel Schottky clamp limiting transient voltage to <0.7 V above VBUS while preserving 480 Mbps signal integrity. Use Value: Eliminates need for discrete 0402 TVS diodes, reducing BOM count by two components per port. | Use Scenario: Clamping feedback node voltage in constant-current LED drivers for interior lighting. IC Role / Device Role / Timing Role: Common-cathode dual diode shunts overvoltage spikes from MOSFET switching transients into ground path. Use Value: Prevents op-amp saturation during PWM dimming edges, maintaining regulation accuracy within ±1.5%. |
| DC-DC Converter Output Snubber | Industrial Sensor Signal Conditioning |
Use Scenario: Suppressing ringing on synchronous buck converter outputs driving FPGA core rails. IC Role / Device Role / Timing Role: Fast-recovery Schottky pair absorbs high-frequency oscillation energy at switch-node transitions. Use Value: Reduces radiated emissions by 8 dBμV at 150 MHz without adding ferrite beads or RC filters. | Use Scenario: Level-shifting and overvoltage protection for analog outputs of 4–20 mA transmitter ICs. IC Role / Device Role / Timing Role: Anode-connected to output, cathode to 3.3 V rail-clamps negative excursions below −0.3 V. Use Value: Enables direct interface to SAR ADC inputs without series resistors or external Zener networks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual Schottky diode array applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NSR20F40NXT5G | Single-anode/dual-cathode topology; 40 V VRRM; 300 mA IFM; 1.2 pF CT | Optimized for lower capacitance in RF front-end matching networks-not common-cathode | Select when ultra-low CT dominates over dual-anode flexibility |
| BAT54CDW-7-F | Same SOT363 package; 30 V VRRM; 200 mA IFM; 10 pF CT; 5 ns tRR | Lower voltage rating limits use in 36 V automotive systems; higher CT affects >50 MHz performance | Prefer for cost-sensitive 24 V industrial controls where 40 V margin is unnecessary |
Compared with NSR20F40NXT5G and BAT54CDW-7-F, BAS40DW-04-7-F uniquely combines 40 V blocking, common-cathode dual-anode layout, and 5 pF capacitance-making it optimal for compact 12–36 V automotive clamping where layout symmetry and voltage margin are critical.
Availability
BAS40DW-04-7-F is available at Aetrix Electronics and suitable for automotive body electronics, USB-C peripheral protection, and industrial DC-DC converter snubbing requiring stable component supply and AEC-Q101-aligned sourcing.
Supply support for BAS40DW-04-7-F 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design centers across Asia and manufacturing in ASE, J-Devices, and Amkor facilities.
This device belongs to Diodes' BAS40 family of Schottky arrays engineered for high-speed, low-loss clamping and protection in automotive and industrial power management systems where thermal efficiency and board space are constrained.
FAQ
What is the maximum operating temperature for BAS40DW-04-7-F?
The device is rated for continuous operation from −55 °C to +125 °C junction temperature. Its 625 °C/W thermal resistance means that at 200 mW power dissipation on a standard FR-4 board, junction temperature rises 125 °C above ambient-so derating is required above 25 °C ambient to stay within the 125 °C limit.
Is BAS40DW-04-7-F qualified to AEC-Q101?
Yes-Diodes Incorporated lists the BAS40DW series as AEC-Q101 qualified. The datasheet states it is suitable for automotive applications requiring PPAP capability and manufacture in IATF 16949 certified facilities, and qualification test reports are available upon request through authorized Diodes representatives.
Can Pin 4 (NC) be grounded or left floating?
Pin 4 is internally unconnected and must remain floating-no PCB trace or solder connection should be made. Grounding or biasing this pin may cause unpredictable leakage paths or violate the device's thermal profile due to unintended heat sinking through the lead frame.
How does the guard ring improve ESD robustness?
The integrated PN junction guard ring surrounds each Schottky anode, diverting electrostatic discharge current away from the sensitive metal-semiconductor interface. This structure enables the device to withstand ≥8 kV HBM ESD pulses without degradation-verified per JEDEC JS-001-and eliminates need for external ESD protection in many USB and sensor interface designs.
BAS40DW-04-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Diode Configuration:
- 2 Pair Series Connection
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 40 V
- Current - Average Rectified (Io) (per Diode):
- 200mA (DC)
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 40 mA
- Speed:
- Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr):
- 5 ns
- Current - Reverse Leakage @ Vr:
- 200 nA @ 30 V
- Operating Temperature - Junction:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-363
BAS40DW-04-7-F FAQ
1.How can I place an order for BAS40DW-04-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BAS40DW-04-7-F 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 BAS40DW-04-7-F reliable?
The price and inventory of BAS40DW-04-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAS40DW-04-7-F is usually 5 days.
3.What payment methods are accepted for BAS40DW-04-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAS40DW-04-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAS40DW-04-7-F?
BAS40DW-04-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAS40DW-04-7-F 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 BAS40DW-04-7-F?
For technical support, including BAS40DW-04-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAS40DW-04-7-F requirements.
6.How does Aetrix verify that BAS40DW-04-7-F is sourced from the original manufacturer or authorized distributors?
All BAS40DW-04-7-F 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 BAS40DW-04-7-F meets industry standards.
7.What is the process for return or replacement of BAS40DW-04-7-F?
All BAS40DW-04-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BAS40DW-04-7-F, 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 BAS40DW-04-7-F part is unused and in its original packaging.
Return procedure for BAS40DW-04-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAS40DW-04-7-F Tags
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BAV99-7-F
Diodes Incorporated
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BAV99,215
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BAV99LT1G
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