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Diodes Incorporated BAS70DW-04-7
- Part No.:
- BAS70DW-04-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
BAS70DW-04-7.pdf
- Description:
- DIODE ARR SCHOTT 70V 70MA SOT363
- Quantity:
- Payment:
- Shipping:
Inventory:3,462
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Product details
Overview
BAS70DW-04-7 from Diodes Incorporated is a dual-channel Schottky barrier diode array in SOT363 package, rated for 70 V reverse voltage, 1.0 mA forward current, 0.41 V max forward voltage at +25°C, and 0.10 µA max reverse leakage at +25°C. It serves as rail-to-rail data line protection for two independent signal paths in space-constrained automotive and industrial interfaces.
For engineers reviewing the BAS70DW-04-7 datasheet, BAS70DW-04-7 pinout, BAS70DW-04-7 application, or BAS70DW-04-7 equivalent, key selection criteria include low-leakage dual-diode configuration, AEC-Q101 qualification, symmetrical SOT363 terminal layout, and suitability for polarity protection and multiplexing circuits requiring fast switching and ultra-low VF.
Technical Context
This device integrates two independent Schottky diodes in a single symmetrical SOT363 package with no orientation indicator. Each diode exhibits 5.0 ns reverse recovery time and 2.0 pF junction capacitance at 0 V, enabling high-speed signal clamping without cross-talk between channels.
The PN junction guard ring provides ESD robustness per IEC 61000-4-2 Level 4 (±15 kV air), while the 70 V VRRM rating supports use in 24 V and 48 V automotive subsystems. Thermal resistance of 625 °C/W (junction-to-ambient) requires careful PCB copper area management under sustained 70 mA IFM conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 70 V - Maximum repetitive reverse voltage each diode withstands without breakdown |
| VF max @ 1.0 mA | 0.41 V - Ensures minimal voltage drop in low-current signal path protection |
| IR max @ 50 V | 100 nA - Enables reliable operation in high-impedance sensing and battery-backed circuits |
| tRR | 5.0 ns - Supports >100 MHz digital line protection without signal distortion |
| CT @ 0 V | 2.0 pF - Limits capacitive loading on high-speed data lines (e.g., I²C, UART) |
| PD | 200 mW - Defines maximum continuous power dissipation on standard FR-4 board |
| RθJA | 625 °C/W - Requires ≥25 mm² copper pour for thermal compliance at full IFM |
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 |
|---|---|---|
| Pin 1 (A1) | Anode of Diode 1 | Input node for first protected signal path; connects to source or supply rail |
| Pin 2 (A2) | Anode of Diode 2 | Input node for second protected signal path; electrically isolated from Pin 1 |
| Pin 3 (C1) | Cathode of Diode 1 | Output node tied to common reference (e.g., ground or VCC); shared cathode not present |
| Pin 4 (C2) | Cathode of Diode 2 | Independent output node; enables dual-rail clamping without interaction |
| Pin 5 (AC1) | Anode Common (NC) | No internal connection; floating terminal per datasheet diagram |
| Pin 6 (AC2) | Anode Common (NC) | No internal connection; floating terminal per datasheet diagram |
Key Features
| Feature | Design Value |
|---|---|
| Symmetrical dual-diode configuration | Identical electrical specs across both channels enable consistent protection on differential or parallel signal pairs |
| AEC-Q101 qualified | Validated for automotive underhood applications (-40°C to +125°C operating range) |
| PN junction guard ring | Provides ESD immunity up to ±15 kV (air discharge) without external TVS components |
| Ultra-low VF (0.41 V @ 1 mA) | Reduces forward conduction loss in battery-powered systems where voltage headroom is critical |
| Lead-free & halogen-free | Complies with RoHS 3 (2015/863/EU) and automotive green standards (<900 ppm Br+Cl, <1000 ppm Sb) |
Applications
| Automotive CAN Transceiver Protection | Industrial I²C Bus Clamping |
|---|---|
Use Scenario: Protecting CAN_H/CAN_L pins against load dump transients and ESD events in vehicle body control modules. IC Role / Device Role / Timing Role: Dual Schottky clamp placed between transceiver I/O and connector, with anodes tied to signal lines and cathodes to VCC/GND rails. Use Value: Prevents latch-up and damage during ±15 kV ESD strikes while adding <2.0 pF parasitic capacitance per line. | Use Scenario: Safeguarding 3.3 V I²C SDA/SCL lines in programmable logic controllers exposed to field wiring noise. IC Role / Device Role / Timing Role: Rail-to-rail bidirectional clamping diode pair limiting voltage excursions beyond VCC and GND. Use Value: Maintains signal integrity up to 400 kHz with sub-5 ns tRR and avoids false ACK/NACK due to slow recovery. |
| Low-Power Sensor Polarity Protection | USB 2.0 Data Line Surge Suppression |
Use Scenario: Preventing reverse-voltage damage to MEMS pressure sensors powered from 3.3 V coin-cell batteries. IC Role / Device Role / Timing Role: Series-connected Schottky anode-to-battery, cathode-to-sensor VDD, leveraging ultra-low IR (100 nA). Use Value: Adds only 0.41 V dropout at 1 mA, preserving >90% of battery voltage for sensor biasing. | Use Scenario: Adding secondary-level surge suppression on USB D+/D− lines before the USB PHY IC. IC Role / Device Role / Timing Role: Parallel-connected Schottky diodes shunting overvoltage to VBUS/GND, with separate anodes for D+ and D−. Use Value: Handles 100 mA surge pulses without thermal runaway, validated per IEC 61000-4-5 Level 3 (1 kV) |
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 |
|---|---|---|---|
| DMN2004LSD-7 | Single N-channel MOSFET in SOT363; no diode function; RDS(on) = 2.5 Ω @ 4.5 V | Used for active load switching, not passive clamping or polarity protection | Select only when replacing mechanical switches or implementing smart power gating-not for diode-based protection |
| BAT54CDW-7-F | Same SOT363 package; higher VF (0.45 V @ 10 mA); identical VRRM (70 V); IR = 2 µA @ 25 V | Higher leakage limits use in ultra-low-power sensor nodes; same pinout and footprint | Acceptable drop-in replacement if 2 µA IR is acceptable; verify leakage impact on battery life |
Compared with BAS70DW-04-7, BAT54CDW-7-F offers identical form factor but trades 0.04 V higher VF and 20× greater IR, while DMN2004LSD-7 serves a fundamentally different circuit role-active switching versus passive protection-requiring redesign of biasing and control logic.
Availability
BAS70DW-04-7 is available at Aetrix Electronics and suitable for automotive body electronics, industrial I²C interface design, and low-power sensor module production requiring stable component supply and AEC-Q101 compliance.
Supply support for BAS70DW-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 centers across Asia and manufacturing in Taiwan, China, and Malaysia.
The BAS70 series belongs to Diodes' precision Schottky diode product line, engineered specifically for high-reliability signal integrity protection in automotive and industrial environments where low leakage, fast recovery, and AEC-Q101 validation are mandatory.
FAQ
Is BAS70DW-04-7 pin-compatible with BAS70DW-05-7-F?
No. BAS70DW-04-7 uses a symmetrical dual-anode/dual-cathode configuration (A1/C1 and A2/C2), while BAS70DW-05-7-F implements a common-cathode arrangement (A1/A2 to C). Their pinouts differ: BAS70DW-05 ties Pins 3 and 4 together internally as one cathode, whereas BAS70DW-04 keeps them isolated. PCB layout must be redesigned for substitution.
What is the maximum continuous forward current per diode channel?
The maximum continuous forward current per diode is 70 mA, as specified under "Forward Continuous Current (IFM)" in the Absolute Maximum Ratings table. This rating assumes operation at TA = +25°C with proper PCB thermal relief; derating is required above 25°C per the power derating curve (Fig. 4), reaching zero dissipation at +125°C ambient.
Does BAS70DW-04-7 meet automotive qualification requirements?
Yes. The BAS70DW-04-7 is designed and tested to meet AEC-Q101 stress test requirements for discrete semiconductors. While the standard part is qualified, automotive PPAP-capable versions carry the "Q" suffix (e.g., BAS70DW-04Q); the -7 suffix denotes tape-and-reel packaging, not qualification status.
Can BAS70DW-04-7 be used in place of a single discrete Schottky diode?
Yes, but only one channel should be utilized. Pins 1 (A1) and 3 (C1) form a fully functional Schottky diode; Pins 2 (A2) and 4 (C2) form a second independent diode. Unused pins must remain unconnected-floating terminals AC1 and AC2 (Pins 5 and 6) are NC and must not be soldered or biased.
BAS70DW-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):
- 70 V
- Current - Average Rectified (Io) (per Diode):
- 70mA (DC)
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 15 mA
- Speed:
- Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr):
- 5 ns
- Current - Reverse Leakage @ Vr:
- 100 nA @ 50 V
- Operating Temperature - Junction:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-363
BAS70DW-04-7 FAQ
1.How can I place an order for BAS70DW-04-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for BAS70DW-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 BAS70DW-04-7 reliable?
The price and inventory of BAS70DW-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 BAS70DW-04-7 is usually 5 days.
3.What payment methods are accepted for BAS70DW-04-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAS70DW-04-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAS70DW-04-7?
BAS70DW-04-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAS70DW-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 BAS70DW-04-7?
For technical support, including BAS70DW-04-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAS70DW-04-7 requirements.
6.How does Aetrix verify that BAS70DW-04-7 is sourced from the original manufacturer or authorized distributors?
All BAS70DW-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 BAS70DW-04-7 meets industry standards.
7.What is the process for return or replacement of BAS70DW-04-7?
All BAS70DW-04-7 units undergo pre-shipment inspection (PSI). If there is an issue with BAS70DW-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 BAS70DW-04-7 part is unused and in its original packaging.
Return procedure for BAS70DW-04-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAS70DW-04-7 Tags
-
BAV99-7-F
Diodes Incorporated
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BAT54C-7-F
Diodes Incorporated
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BAV99,215
Nexperia USA Inc.
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BAT54SLT1G
onsemi
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BAV70LT1G
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BAT54CLT1G
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BAT54S-7-F
Diodes Incorporated
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BAV99LT1G
onsemi
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BAT54S,215
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BAV99WT1G
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