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Nexperia USA Inc. BAS70-05W-QF
- Part No.:
- BAS70-05W-QF
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Diode Arrays
- Package:
- SC-70, SOT-323
- Datasheet:
-
BAS70-05W-QF.pdf
- Description:
- DIODE ARR SCHOTT 70V 70MA SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:3,554
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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, and 410 mV typical forward voltage at 1 mA, enabling ultra-high-speed switching and voltage clamping in space-constrained automotive electronics.
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 AEC-Q101 qualification, low 2 pF capacitance at 0 V, 100 nA reverse leakage at 50 V, and thermal resistance of 500 K/W on FR4 PCB - all critical for high-reliability signal routing and transient suppression.
Technical Context
This dual Schottky diode integrates two independent anodes (A1, A2) with a shared cathode (K1/K2), supporting independent clamping or steering paths in compact layouts. Its low forward voltage and fast recovery minimize conduction loss and switching delay in high-frequency signal conditioning circuits.
The device operates across −65 °C to +150 °C ambient range with junction temperature up to 150 °C, and exhibits stable 10 µA max reverse current at 70 V and 25 °C - confirming robust blocking performance under automotive load-dump transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Voltage (VR) | 70 V maximum - supports clamping in 42 V automotive systems and withstands ISO 7637-2 pulse 5a transients. |
| Forward Voltage (VF) | 410 mV typ. at 1 mA - reduces power loss in low-current bias and sensing paths. |
| Reverse Current (IR) | 100 nA typ. at 50 V - ensures minimal leakage in high-impedance voltage reference or level-shifting nodes. |
| Diode Capacitance (Cd) | 2 pF typ. at 0 V, 1 MHz - preserves signal integrity in >100 MHz RF or data line protection applications. |
| Thermal Resistance (Rth(j-a)) | 500 K/W on single-sided FR4 - defines derating curve for continuous operation at ambient up to 85 °C. |
| Peak Forward Surge (IFSM) | 100 mA non-repetitive (10 ms) - handles ESD-induced current spikes without degradation. |
Pinout & Package
Package: SOT323 (SC-70), 3-lead 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 (Diode 1) | Input node for first Schottky path; connects to signal source requiring clamping or steering. |
| 2 | Anode (Diode 2) | Independent input node for second Schottky path; enables dual-rail or redundant protection. |
| 3 | Common Cathode (K1/K2) | Shared return path to ground or reference rail; simplifies PCB layout and reduces trace inductance. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JESD22-A114. |
| Low forward voltage | 410 mV typ. at 1 mA enables efficient biasing in low-power sensor interfaces and logic-level translators. |
| Ultra-low capacitance | 2 pF at 0 V allows use in USB 2.0, CAN FD, and I²C bus protection without signal distortion. |
| High-speed switching | Sub-nanosecond recovery time supports >1 GHz transient suppression in RF front-end protection. |
Applications
| Automotive CAN Bus Protection | USB 2.0 Data Line Clamping |
|---|---|
Use Scenario: Protecting CAN_H/CAN_L lines against ISO 16750-2 load dump and ESD events in body control modules. IC Role / Device Role / Timing Role: Dual-anode Schottky clamping diode with common cathode tied to 5 V rail or TVS array ground. Use Value: 70 V VR rating absorbs 12 V/24 V system transients; 2 pF capacitance avoids signal rise-time degradation on 1 Mbps CAN. |
Use Scenario: Bidirectional ESD protection on D+ and D− lines of embedded USB peripherals. IC Role / Device Role / Timing Role: Two independent anodes clamp positive transients to VBUS while common cathode sinks negative surges to ground. Use Value: 100 nA IR at 50 V prevents DC loading on 1.5 kΩ pull-up resistors; 410 mV VF avoids false logic-level detection. |
| Low-Power Sensor Biasing | Logic-Level Translation Interface |
Use Scenario: Providing isolated bias current to Hall-effect or thermistor sensors in battery-powered telematics units. IC Role / Device Role / Timing Role: Dual Schottky used as active current mirror or precision current source selector via separate anodes. Use Value: Matched VF characteristics ensure <5% current mismatch between paths; 150 °C Tj rating supports under-hood deployment. |
Use Scenario: Level shifting between 1.8 V microcontroller GPIO and 3.3 V peripheral I/O in infotainment head units. IC Role / Device Role / Timing Role: Anode-to-anode connection forms passive OR gate; common cathode routes combined output to higher-voltage domain. Use Value: 70 mA IF rating sustains sustained 3.3 V drive; low Rdiff (<1 Ω at 10 mA) minimizes voltage drop during logic transitions. |
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 (550 mV typ. at 1 mA); same SOT-323 package; AEC-Q101 qualified. | Less suitable for ultra-low-loss biasing but acceptable for general clamping where leakage tolerance >500 nA. | Select when higher surge current (200 mA IFSM) is prioritized over minimal forward drop. |
| Vishay SMBJ70A (dual-diode variant not available; SMBJ70A is single; correct alternative: Vishay VS-75APL02-M3/86A) | VS-75APL02-M3/86A: 70 V VR, 200 mA IF, SOD-323 package, no AEC-Q101 certification. | Not recommended for automotive; suitable only for industrial/commercial clamping where qualification is not required. | Choose only for cost-sensitive non-automotive designs where AEC-Q101 compliance is waived. |
Compared with NSR20F70HT1G and VS-75APL02-M3/86A, BAS70-05W-Q uniquely balances AEC-Q101 compliance, 410 mV low VF, and 2 pF capacitance - making it optimal for automotive signal integrity-critical roles where both efficiency and speed matter.
Availability
BAS70-05W-Q is available at Aetrix Electronics and suitable for automotive CAN bus protection, USB 2.0 interface clamping, and low-power sensor biasing requiring stable component supply and long-term lifecycle assurance.
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 essential semiconductors, delivering high-performance, reliable discrete and logic devices for automotive, industrial, and consumer markets.
BAS70-05W-Q belongs to Nexperia's AEC-Q101-qualified Schottky diode portfolio, engineered specifically for high-speed, low-loss signal routing and transient protection in harsh automotive environments.
FAQ
Is BAS70-05W-Q suitable for 48 V mild-hybrid vehicle systems?
Yes. With a 70 V reverse voltage rating and AEC-Q101 qualification, BAS70-05W-Q supports clamping and steering functions in 48 V architectures, including transients up to ISO 16750-2 Pulse 5a (110 V/100 ms). Its 150 °C junction rating ensures operation under hood temperatures typical of mild-hybrid power distribution units.
Can BAS70-05W-Q replace a single Schottky diode in existing designs?
No - it is a dual-anode/common-cathode configuration, not a drop-in replacement for single-diode footprints. Pin 1 and Pin 2 must each connect to separate signal sources, while Pin 3 serves as the shared return. Layout revision is required to accommodate the three-terminal dual topology.
What is the maximum continuous forward current at 100 °C ambient?
At Tamb = 100 °C, derating based on Rth(j-a) = 500 K/W yields a maximum continuous IF of approximately 35 mA. This assumes FR4 PCB mounting with single-sided copper; actual current must be reduced if board copper area or airflow is limited.
Does BAS70-05W-Q support reflow soldering per JEDEC J-STD-020?
Yes. The SOT323 package is compatible with standard lead-free reflow profiles (peak 260 °C, 30 s max above 245 °C). Nexperia provides validated footprint dimensions in Figure 6 of the datasheet, including 0.55 mm solder paste stencil openings and 1.325 mm pad length for optimal wetting and void control.
BAS70-05W-QF 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 (DC)
- 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-QF FAQ
1.How can I place an order for BAS70-05W-QF through Aetrix?
Please submit a Request for Quotation (RFQ) for BAS70-05W-QF 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-QF reliable?
The price and inventory of BAS70-05W-QF 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-QF is usually 5 days.
3.What payment methods are accepted for BAS70-05W-QF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAS70-05W-QF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAS70-05W-QF?
BAS70-05W-QF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAS70-05W-QF 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-QF?
For technical support, including BAS70-05W-QF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAS70-05W-QF requirements.
6.How does Aetrix verify that BAS70-05W-QF is sourced from the original manufacturer or authorized distributors?
All BAS70-05W-QF 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-QF meets industry standards.
7.What is the process for return or replacement of BAS70-05W-QF?
All BAS70-05W-QF units undergo pre-shipment inspection (PSI). If there is an issue with BAS70-05W-QF, 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-QF part is unused and in its original packaging.
Return procedure for BAS70-05W-QF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAS70-05W-QF 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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