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Nexperia USA Inc. BAS70-05W-QX
- Part No.:
- BAS70-05W-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Diode Arrays
- Package:
- SC-70, SOT-323
- Datasheet:
-
BAS70-05W-QX.pdf
- Description:
- DIODE ARR SCHOTT 70V 70MA SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:2,047
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Product details
Overview
BAS70-05W-Q from Nexperia is a general-purpose dual Schottky diode in SOT323 (SC-70) package, configured as two anodes sharing a common cathode. It delivers 70 V reverse voltage rating, 70 mA forward current capability, 410 mV forward voltage at 1 mA, 2 pF diode capacitance at 0 V, and AEC-Q101 qualification for automotive signal clamping and ultra-high-speed switching.
For engineers reviewing the BAS70-05W-Q datasheet, BAS70-05W-Q pinout, BAS70-05W-Q application, or BAS70-05W-Q equivalent, key selection criteria include its dual-anode/common-cathode topology, low VF/low Cd trade-off, pulsed forward voltage behavior, and automotive-grade thermal reliability up to 150 °C junction temperature.
Technical Context
This dual Schottky diode integrates two independent anode terminals (A1, A2) with a shared cathode (K1/K2), enabling independent signal routing while maintaining compact footprint. Its low 2 pF capacitance and sub-1 V VF across 1–15 mA support high-frequency transient suppression and fast edge handling.
The device operates within −65 °C to 150 °C ambient and junction ranges, with 500 K/W junction-to-ambient thermal resistance on FR4 PCB. AEC-Q101 qualification confirms robustness against automotive thermal cycling, humidity, and mechanical stress without derating at rated VR or IF.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Voltage (VR) | 70 V - supports clamping of transients up to automotive 42 V system surges with margin |
| Forward Voltage (VF) | 410 mV @ 1 mA - enables low-loss biasing and logic-level signal steering |
| Diode Capacitance (Cd) | 2 pF @ 0 V, 1 MHz - minimizes signal distortion in >100 MHz RF or data line protection |
| Reverse Current (IR) | 10 µA @ 70 V - ensures minimal leakage in high-impedance sensing or battery-backed circuits |
| Junction Temperature (Tj) | 150 °C max - allows operation in under-hood ECUs and power supply feedback paths |
| Thermal Resistance (Rth(j-a)) | 500 K/W - defines power dissipation limit of ~150 mW in free-air FR4 layout |
Pinout & Package
Package: SOT323 (SC-70), 3-terminal surface-mount plastic package, 2.0 mm × 1.25 mm × 0.95 mm body, 1.3 mm lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode of Diode 1 (A1) | Independent input path for first Schottky junction; routed separately for dual-signal clamping |
| 2 | Anode of Diode 2 (A2) | Independent input path for second Schottky junction; enables parallel or differential clamping |
| 3 | Common Cathode (K1/K2) | Shared output node; simplifies PCB layout and reduces trace inductance in clamp-to-rail configurations |
Key Features
| Feature | Design Value |
|---|---|
| Dual-anode/common-cathode topology | Enables independent clamping of two signals to same rail without cross-coupling |
| AEC-Q101 qualification | Validated for automotive powertrain, body control, and ADAS modules per stress test requirements |
| Low 2 pF capacitance | Maintains signal integrity in USB 2.0, CAN FD stubs, and LVDS termination networks |
| 410 mV VF at 1 mA | Reduces forward conduction loss in low-current bias networks and precision reference clamps |
| 150 °C max junction temperature | Supports placement near heat sources such as DC-DC converters or motor drivers |
Applications
| Automotive CAN Transceiver Protection | USB 2.0 Data Line Clamping |
|---|---|
Use Scenario: Protecting CAN_H/CAN_L lines from ESD and load-dump transients in vehicle networking nodes. IC Role / Device Role / Timing Role: Dual Schottky clamp diode providing bidirectional low-capacitance path to VCC and GND rails. Use Value: 2 pF capacitance avoids signal rise-time degradation; 70 V VR withstands ISO 7637-2 Pulse 1/2b surges. |
Use Scenario: ESD and overvoltage protection on D+ and D− lines of embedded USB 2.0 host/device ports. IC Role / Device Role / Timing Role: Dual-anode configuration allows separate clamping of each data line to common VBUS/GND reference. Use Value: 410 mV VF ensures minimal DC offset during normal signaling; AEC-Q101 grade supports industrial USB peripherals. |
| Low-Power Sensor Bias Clamping | High-Speed Logic-Level Translation |
Use Scenario: Preventing negative excursion beyond −0.3 V on analog sensor outputs feeding microcontroller ADC inputs. IC Role / Device Role / Timing Role: Single-diode path (A1→K) clamps negative transients while preserving DC accuracy via low IR. Use Value: 10 µA IR at 70 V ensures <1 µA error current in 1 MΩ sensor interface; SOT323 fits space-constrained modules. |
Use Scenario: Level-shifting 1.8 V logic signals to 3.3 V domains using active pull-up with Schottky threshold control. IC Role / Device Role / Timing Role: Dual diode used in series-connected clamp configuration to define precise forward drop between rails. Use Value: Tight VF distribution (typ. 410–750 mV across 1–10 mA) enables predictable translation window without external resistors. |
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 NSR20F70HT1G | Higher VF (520 mV @ 1 mA); same SOT-323 package; no AEC-Q101 claim | Lacks automotive qualification; suitable for commercial USB/industrial I/O where qualification not required | Select when cost sensitivity outweighs AEC-Q101 need and higher VF is acceptable |
| Vishay SDUR70Q20-7 | Higher VR (100 V); TO-236AB (SOT-23) package; single-diode dual-die construction | Not pin-compatible; larger footprint; better for 48 V systems but incompatible with SOT323 layout | Choose only if 100 V rating is mandatory and board re-layout is feasible |
Compared with NSR20F70HT1G and SDUR70Q20-7, BAS70-05W-Q uniquely balances AEC-Q101 compliance, SOT323 footprint, 70 V rating, and 410 mV VF-making it optimal for space-constrained automotive signal protection where qualification and low VF are jointly critical.
Availability
BAS70-05W-Q is available at Aetrix Electronics and suitable for automotive CAN protection, USB 2.0 clamping, and low-power sensor interface applications requiring stable component supply, long-term lifecycle assurance, and AEC-Q101 traceability.
Supply support for BAS70-05W-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 global semiconductor expert focused on high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified components and advanced packaging.
BAS70-05W-Q belongs to Nexperia's AEC-Q101-qualified Schottky diode portfolio, engineered specifically for signal integrity preservation and transient robustness in automotive infotainment, body electronics, and powertrain subsystems.
FAQ
Is BAS70-05W-Q pin-compatible with BAS70-04W or BAS70-06W?
No. BAS70-05W-Q uses a dual-anode/common-cathode pinout (A1, A2, K), whereas BAS70-04W is common-anode and BAS70-06W is common-cathode with reversed terminal assignment. Pin mapping differs across the BAS70-W series, and substitution requires PCB layout verification.
What is the maximum continuous forward current for BAS70-05W-Q?
The absolute maximum continuous forward current is 70 mA per diode, as defined in IEC 60134 limiting values. Derating is required above 25 °C ambient; at 125 °C, maximum IF drops to approximately 45 mA based on thermal resistance and junction temperature limits.
Does BAS70-05W-Q support bidirectional ESD protection?
Used with appropriate external components (e.g., series resistors and rail clamps), it provides unidirectional clamping from signal to VCC/GND. For true bidirectional protection, a complementary pair or dedicated TVS array is required-BAS70-05W-Q itself conducts only anode-to-cathode.
Can BAS70-05W-Q be used in DC-DC converter synchronous rectification?
No. Its 70 mA continuous current rating and 100 mA non-repetitive peak rating are insufficient for power-switching applications. It is specified for signal-level clamping and protection-not power conversion-per Nexperia's product classification and thermal design limits.
BAS70-05W-QX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 70 V
- Current - Average Rectified (Io) (per Diode):
- 70mA
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 15 mA
- Speed:
- Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 10 µA @ 70 V
- Operating Temperature - Junction:
- 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
BAS70-05W-QX FAQ
1.How can I place an order for BAS70-05W-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BAS70-05W-QX 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 BAS70-05W-QX reliable?
The price and inventory of BAS70-05W-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAS70-05W-QX is usually 5 days.
3.What payment methods are accepted for BAS70-05W-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAS70-05W-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAS70-05W-QX?
BAS70-05W-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAS70-05W-QX 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 BAS70-05W-QX?
For technical support, including BAS70-05W-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAS70-05W-QX requirements.
6.How does Aetrix verify that BAS70-05W-QX is sourced from the original manufacturer or authorized distributors?
All BAS70-05W-QX 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 BAS70-05W-QX meets industry standards.
7.What is the process for return or replacement of BAS70-05W-QX?
All BAS70-05W-QX units undergo pre-shipment inspection (PSI). If there is an issue with BAS70-05W-QX, 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 BAS70-05W-QX part is unused and in its original packaging.
Return procedure for BAS70-05W-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAS70-05W-QX 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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