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Nexperia USA Inc. BAS70-07-QR
- Part No.:
- BAS70-07-QR
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Diode Arrays
- Package:
- TO-253-4, TO-253AA
- Datasheet:
-
BAS70-07-QR.pdf
- Description:
- DIODE ARR SCHOT 70V 70MA SOT143B
- Quantity:
- Payment:
- Shipping:
Inventory:4,648
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Product details
Overview
BAS70-07-QR from Nexperia is a general-purpose dual Schottky diode in SOT143B package, configured as two independent low-capacitance (2 pF), low-forward-voltage (410 mV @ 1 mA) diodes with 70 V reverse voltage rating and AEC-Q101 qualification for automotive signal clamping and ultra-high-speed switching.
For engineers reviewing the BAS70-07-QR datasheet, BAS70-07-QR pinout, BAS70-07-QR application, or BAS70-07-QR equivalent, this dual Schottky diode offers verified performance in voltage clamping, high-frequency signal routing, and automotive ECU protection circuits where leakage current (<100 nA @ 50 V), thermal robustness (Tj up to 150 °C), and pulsed forward current capability (70 mA) are critical selection criteria.
Technical Context
This dual Schottky diode integrates two independent anode-cathode junctions in a single 4-pin SOT143B surface-mount package, with pin 1 = K1, pin 2 = K2, pin 3 = A2, pin 4 = A1 - enabling discrete dual-channel clamping without shared terminals. Its Schottky barrier construction eliminates minority-carrier storage delay, supporting sub-nanosecond switching transitions.
Thermal resistance from junction to ambient is 500 K/W on standard FR4 PCB, and its AEC-Q101 qualification confirms reliability under automotive temperature cycling (−65 °C to 150 °C), humidity, and mechanical stress conditions - making it suitable for under-hood sensor interface and power rail protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Forward Voltage (VF) | 410 mV @ 1 mA pulsed - enables low-loss signal-level clamping with minimal voltage offset in precision analog paths. |
| Reverse Voltage (VR) | 70 V - supports use in 48 V automotive systems and industrial 24–48 V DC rails without breakdown risk. |
| Reverse Current (IR) | 100 nA @ 50 V - ensures negligible leakage in high-impedance bias networks and battery-backed circuits. |
| Diode Capacitance (Cd) | 2 pF @ 0 V, 1 MHz - preserves signal integrity above 100 MHz in RF detector and high-speed logic clamp applications. |
| Peak Forward Current (IFSM) | 100 mA @ 10 ms - withstands transient surge events such as ESD-induced current spikes in I/O protection. |
| Junction Temperature (Tj) | 150 °C maximum - allows operation in engine control units and power converters with elevated ambient temperatures. |
Pinout & Package
SOT143B plastic surface-mount package: 4-lead, 1.9 mm pitch, 2.9 mm × 1.3 mm × 1.0 mm body, optimized for reflow and wave soldering per IPC-7351 standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (Diode 1) | Reference node for first Schottky junction; connects to ground or common return in clamping configurations. |
| 2 | Cathode (Diode 2) | Independent cathode for second diode; enables separate biasing or dual-rail clamping without shared cathode impedance. |
| 3 | Anode (Diode 2) | Input terminal for second diode; used for bidirectional signal limiting or dual-path transient suppression. |
| 4 | Anode (Diode 1) | Primary input for first diode; commonly tied to data line or supply rail requiring fast turn-on clamping action. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HAST, and mechanical shock - no derating required for under-hood deployment. |
| Low capacitance (2 pF) | Minimizes loading on high-frequency signals (e.g., USB 2.0, CAN FD stubs, LVDS lines), preserving edge rate and timing margin. |
| High breakdown voltage (70 V) | Supports direct placement across 48 V battery systems and industrial 24/48 V buses without external series resistors or voltage dividers. |
| Pulsed forward current (70 mA) | Enables sustained clamping during repetitive transients (e.g., ISO 7637-2 Pulse 1/2a), reducing need for parallel diode stacking. |
Applications
| Automotive Sensor Interface | USB 2.0 Data Line Protection |
|---|---|
Use Scenario: Protecting analog outputs of pressure/temperature sensors in engine control modules from load dump and inductive kickback. IC Role / Device Role / Timing Role: Dual Schottky clamping diode providing bidirectional overvoltage protection at sensor output pins. Use Value: Prevents latch-up in downstream ADC inputs by limiting excursions to ±0.4 V beyond rail using low VF and matched dual structure. |
Use Scenario: ESD and transient suppression on D+ and D− lines of USB 2.0 host/device ports in infotainment head units. IC Role / Device Role / Timing Role: Low-capacitance dual clamping device placed directly at connector to shunt fast transients before reaching PHY. Use Value: Maintains signal integrity with <2 pF loading while meeting IEC 61000-4-2 Level 4 (±15 kV air) via low IR and fast response. |
| Industrial PLC Digital Input | DC-DC Converter Feedback Clamp |
Use Scenario: Voltage translation and overvoltage protection for 24 V digital inputs in programmable logic controllers exposed to field wiring surges. IC Role / Device Role / Timing Role: Dual Schottky acting as rail-to-rail clamp between 24 V supply and microcontroller GPIO, referenced to local ground. Use Value: Enables direct interfacing without level-shifter ICs; 70 V VR rating accommodates 24 V + 40 % tolerance and transient overshoot. |
Use Scenario: Clamping feedback node of isolated flyback converter to prevent regulation error from noise-induced voltage spikes. IC Role / Device Role / Timing Role: Dual diode connected between optocoupler input and reference voltage to limit feedback excursion during burst-mode switching. Use Value: Stabilizes regulation by preventing false triggering of error amplifier due to <1 ns rise-time noise, leveraging sub-ns Schottky response. |
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 70 V VR, SOD-323 package (2-pin single diode, requires two devices for dual function). | Lacks integrated dual configuration; increases board area and assembly cost for dual-channel designs. | Select when single-diode replacement is needed or SOD-323 footprint is mandated; not drop-in for SOT143B layout. |
| Vishay SDUR70Q030-13 | Lower VR (30 V), higher IF (200 mA), TO-236AB package; dual Schottky but unqualified for automotive use. | Not AEC-Q101 rated; unsuitable for automotive environments requiring extended temperature and reliability validation. | Consider only for industrial non-automotive applications where 30 V VR suffices and higher current handling is prioritized. |
Compared with NSR20F70HT1G and SDUR70Q030-13, BAS70-07-QR uniquely combines AEC-Q101 qualification, true dual-diode integration in SOT143B, and balanced 70 V/410 mV/2 pF specs - making it the only option validated for automotive signal clamping where space, reliability, and parametric consistency are jointly constrained.
Availability
BAS70-07-QR is available at Aetrix Electronics and suitable for automotive sensor interfaces, USB 2.0 port protection, and industrial PLC digital input circuits requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for BAS70-07-QR 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 technologies.
BAS70-07-QR belongs to Nexperia's AEC-Q101-qualified Schottky diode product line, engineered specifically for signal integrity preservation and transient robustness in automotive electronics and industrial control systems.
FAQ
Is BAS70-07-QR pin-compatible with BAS70-05 or BAS70-06?
No. BAS70-07-QR uses SOT143B (4-pin) with independent anode/cathode terminals per diode, whereas BAS70-05 and BAS70-06 use SOT23 (3-pin) with shared cathode configuration. Pin mapping differs fundamentally: BAS70-07-QR pins are K1, K2, A2, A1; BAS70-05 pins are A, K, A. Layout redesign is required for substitution.
What is the maximum continuous forward current for BAS70-07-QR?
The maximum continuous forward current (IF) is 70 mA at Tamb = 25 °C, as specified in the Absolute Maximum Ratings table. Derating is required above 25 °C ambient; at 85 °C, usable IF drops to approximately 45 mA based on thermal resistance (500 K/W) and Tj limit (150 °C).
Can BAS70-07-QR be used in AC signal rectification?
No. BAS70-07-QR is optimized for clamping and high-speed switching, not power rectification. Its 70 mA continuous current rating and 100 mA non-repetitive peak rating are insufficient for power supply applications. It lacks the thermal mass and surge capability required for mains-frequency or DC-DC output rectification.
Does BAS70-07-QR require special PCB layout considerations for thermal performance?
Yes. To maintain junction temperature below 150 °C at full 70 mA load, the SOT143B footprint must follow Nexperia's recommended copper land pattern (Fig. 6): 0.7 mm × 0.9 mm solder pads with ≥1 cm² of 1-oz copper pour connected via ≥3 thermal vias per pad. Reduced copper area increases Rth(j-a) beyond 500 K/W, risking thermal runaway.
BAS70-07-QR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- TO-253-4, TO-253AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Diode Configuration:
- 2 Independent
- 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-143B
BAS70-07-QR FAQ
1.How can I place an order for BAS70-07-QR through Aetrix?
Please submit a Request for Quotation (RFQ) for BAS70-07-QR 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 BAS70-07-QR reliable?
The price and inventory of BAS70-07-QR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAS70-07-QR is usually 5 days.
3.What payment methods are accepted for BAS70-07-QR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAS70-07-QR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAS70-07-QR?
BAS70-07-QR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAS70-07-QR 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 BAS70-07-QR?
For technical support, including BAS70-07-QR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAS70-07-QR requirements.
6.How does Aetrix verify that BAS70-07-QR is sourced from the original manufacturer or authorized distributors?
All BAS70-07-QR 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 BAS70-07-QR meets industry standards.
7.What is the process for return or replacement of BAS70-07-QR?
All BAS70-07-QR units undergo pre-shipment inspection (PSI). If there is an issue with BAS70-07-QR, 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 BAS70-07-QR part is unused and in its original packaging.
Return procedure for BAS70-07-QR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAS70-07-QR 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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