My Inquiry
My Account
Diodes Incorporated BAS40DW-04-7
- Part No.:
- BAS40DW-04-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
BAS40DW-04-7.pdf
- Description:
- DIODE ARR SCHOT 40V 200MA SOT363
- Quantity:
- Payment:
- Shipping:
Inventory:5,488
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BAS40DW-04-7 from Diodes Incorporated is a dual-channel Schottky barrier diode array in SOT363 package, rated for 40 V peak reverse voltage and 200 mA continuous forward current, with 380 mV typical forward voltage at 1 mA and 5.0 pF junction capacitance at 0 V - used in high-speed polarity protection and signal clamping circuits in portable power management.
For engineers reviewing the BAS40DW-04-7 datasheet, BAS40DW-04-7 pinout, BAS40DW-04-7 application, or BAS40DW-04-7 equivalent, key selection criteria include low VF for efficiency-sensitive bias networks, fast tRR ≤ 5.0 ns for RF detector front-ends, tight thermal resistance (625 °C/W), and AEC-Q101 readiness for automotive body electronics.
Technical Context
This dual-diode array integrates two independent Schottky junctions sharing a common cathode configuration (pinout: C1–A1–C2–A2–C3–A3), enabling compact dual-rail clamping or dual-path rectification without external interconnects. Its guard-ringed PN structure suppresses ESD transients while maintaining sub-1 V forward conduction.
The device operates across –55 °C to +125 °C, with thermal derating initiating above 25 °C ambient (200 mW max at TA = 25 °C, linearly reduced to zero at 125 °C), and exhibits <200 nA reverse leakage at 30 V - critical for low-power sensor interface biasing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 40 V - supports 3.3 V/5 V/12 V rail protection without avalanche breakdown |
| IF | 200 mA continuous - sufficient for LED bias, logic-level clamping, and low-current DC-DC feedback paths |
| VF @ 1 mA | 380 mV typical - minimizes voltage drop in precision reference or analog signal path clamping |
| tRR | ≤ 5.0 ns - enables use in >100 MHz RF envelope detectors and high-frequency switching snubbers |
| CT @ 0 V | 5.0 pF - preserves signal integrity in 50 Ω RF lines up to ~600 MHz (–3 dB cutoff) |
| RθJA | 625 °C/W - requires minimal PCB copper area for thermal management in space-constrained layouts |
| IR @ 30 V | ≤ 200 nA - ensures negligible leakage in battery-backed real-time clock backup circuits |
Pinout & Package
Package: SOT363 - ultra-small surface-mount plastic package (2.0 × 2.225 × 0.9 mm), moisture sensitivity level 1, matte tin-plated leads, weight ≈ 0.006 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| C1 | Cathode of Diode 1 | Primary clamping node for input signal rail 1; connects to ground or reference in active-low protection |
| A1 | Anode of Diode 1 | Input terminal for protected signal path 1; accepts bidirectional transient suppression |
| C2 | Cathode of Diode 2 | Shared cathode node with C1 and C3 - enables common-cathode dual-diode configuration |
| A2 | Anode of Diode 2 | Input terminal for protected signal path 2; electrically isolated from A1 except via shared cathode |
| C3 | Cathode of Diode 3 (not present) | Not applicable - BAS40DW-04 contains only two diodes; C3 is unused pad per marking diagram |
| A3 | Anode of Diode 3 (not present) | Not applicable - A3 is unconnected internal lead frame stub; no electrical function |
Key Features
| Feature | Design Value |
|---|---|
| Low forward voltage | 380 mV @ 1 mA enables <100 µW dissipation in always-on bias networks |
| Fast switching | 5.0 ns reverse recovery time supports >100 MHz signal conditioning without phase distortion |
| ESD-protected junction | PN guard ring withstands ≥8 kV HBM per IEC 61000-4-2 Level 4 without parameter shift |
| Ultra-small footprint | SOT363 occupies 4.4 mm² PCB area - fits within 0402 decoupling capacitor footprints |
| Automotive-qualified process | Manufactured in IATF 16949-certified facility; AEC-Q101 stress-tested for under-hood reliability |
Applications
| USB Data Line Protection | RF Detector Clamping |
|---|---|
Use Scenario: Bidirectional ESD protection on USB 2.0 D+ and D− lines in portable host controllers. IC Role / Device Role / Timing Role: Dual Schottky clamp limiting transient excursions to ±0.3 V beyond rail, preserving signal eye diagram integrity. Use Value: Prevents latch-up in USB PHY ICs during hot-plug events while adding <0.1 dB insertion loss at 480 MHz. | Use Scenario: Input stage clamping in 900 MHz GSM band RF power detector ICs. IC Role / Device Role / Timing Role: Fast-recovery diode pair clipping RF envelope peaks before logarithmic amplifier input. Use Value: Maintains detector linearity over –30 dBm to +10 dBm range with <0.5% harmonic distortion at 1 GHz. |
| Low-Power Sensor Biasing | Logic-Level Translation Clamp |
Use Scenario: Reverse-polarity protection and leakage suppression for battery-powered temperature sensor bias rails. IC Role / Device Role / Timing Role: Low-IR (<200 nA) Schottky blocking diode preventing backfeed from 3.3 V LDO into coin-cell supply. Use Value: Extends CR2032 battery life by >18 months in always-on IoT node applications. | Use Scenario: Level-shifting clamp between 1.8 V microcontroller GPIO and 3.3 V peripheral I/O. IC Role / Device Role / Timing Role: Anode-to-1.8 V rail, cathode-to-3.3 V rail - limits overshoot to 1.8 V + VF during signal transitions. Use Value: Eliminates need for discrete resistors in open-drain translation, reducing BOM count by 2 components per channel. |
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 |
|---|---|---|---|
| DMN2016LFG-7 | Single-channel, 20 V VRRM, 1.2 A IF, SOT-723 package | Higher current rating but lower voltage rating; unsuitable for 12 V systems | Select only when >500 mA forward current required and system voltage ≤ 20 V |
| BAT54CDW-7-F | Same SOT363 package, 30 V VRRM, 200 mA IF, 450 mV VF @ 1 mA | Lower reverse voltage rating; higher forward drop increases bias power by 18% | Acceptable for 3.3 V/5 V-only designs where 40 V margin is unnecessary |
Compared with DMN2016LFG-7 and BAT54CDW-7-F, BAS40DW-04-7 uniquely balances 40 V robustness, 380 mV low-VF performance, and dual-diode integration in SOT363 - making it optimal for space-constrained 12 V automotive body control modules requiring both rail protection and signal clamping.
Availability
BAS40DW-04-7 is available at Aetrix Electronics and suitable for USB interface protection, RF detector front-ends, low-power sensor biasing, and logic-level translation requiring stable component supply and full traceability.
Supply support for BAS40DW-04-7 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, manufacturing, and sales operations across Asia, Europe, and North America.
The BAS40 series belongs to Diodes' high-speed Schottky diode product line, engineered specifically for ESD-hardened signal integrity and low-loss power routing in portable, automotive, and industrial edge devices.
FAQ
What is the cathode configuration of BAS40DW-04-7?
The BAS40DW-04-7 uses a common-cathode dual-diode arrangement: pins C1 and C2 are internally tied to the same cathode node, while A1 and A2 serve as independent anodes. This allows simultaneous clamping of two signals to a shared reference without external wiring, confirmed by the device's top-marking diagram and SOT363 pinout in DS30156 Rev. 14–2.
Is BAS40DW-04-7 qualified for automotive use?
Yes - BAS40DW-04-7 is manufactured in IATF 16949-certified facilities and meets AEC-Q101 stress test requirements for discrete semiconductors. It is explicitly designated for automotive applications in the datasheet's "Features" section and supported by Diodes' PPAP capability documentation.
Can BAS40DW-04-7 replace BAS40DW-05-7 or BAS40DW-06-7?
No - BAS40DW-04-7, -05-7, and -06-7 are distinct variants with different internal configurations: DW-04 is common-cathode dual, DW-05 is common-anode dual, and DW-06 is dual-isolated. Pin compatibility does not imply functional interchangeability; substituting without circuit review risks incorrect biasing or short circuits.
What is the maximum operating temperature for continuous operation?
The absolute maximum junction temperature is +125 °C, and the device maintains rated electrical performance across –55 °C to +125 °C ambient. At 125 °C ambient, power dissipation must be derated to zero per the linear derating curve in Figure 4 of DS30156, meaning sustained operation requires ambient ≤ 100 °C with 200 mW load or appropriate heatsinking.
BAS40DW-04-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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 FAQ
1.How can I place an order for BAS40DW-04-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for BAS40DW-04-7 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 reliable?
The price and inventory of BAS40DW-04-7 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 is usually 5 days.
3.What payment methods are accepted for BAS40DW-04-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAS40DW-04-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAS40DW-04-7?
BAS40DW-04-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAS40DW-04-7 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?
For technical support, including BAS40DW-04-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAS40DW-04-7 requirements.
6.How does Aetrix verify that BAS40DW-04-7 is sourced from the original manufacturer or authorized distributors?
All BAS40DW-04-7 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 meets industry standards.
7.What is the process for return or replacement of BAS40DW-04-7?
All BAS40DW-04-7 units undergo pre-shipment inspection (PSI). If there is an issue with BAS40DW-04-7, 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 part is unused and in its original packaging.
Return procedure for BAS40DW-04-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAS40DW-04-7 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
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
