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Diodes Incorporated BAV70WQ-7-F
- Part No.:
- BAV70WQ-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- SC-70, SOT-323
- Datasheet:
-
BAV70WQ-7-F.pdf
- Description:
- DIODE ARRAY GP 75V 300MA SOT-323
- Quantity:
- Payment:
- Shipping:
Inventory:15,819
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Product details
Overview
BAV70WQ-7-F from Diodes Incorporated is a dual high-speed switching diode in SOT323 package, rated for 75 V peak repetitive reverse voltage and 300 mA forward current, with 4 ns reverse recovery time and 2.0 pF junction capacitance - used in automotive signal routing, ESD protection clamping, and high-frequency detector circuits.
For engineers reviewing the BAV70WQ-7-F datasheet, BAV70WQ-7-F pinout, BAV70WQ-7-F application, or BAV70WQ-7-F equivalent, key selection criteria include AEC-Q101 qualification, low trr for fast switching, tight capacitance control for RF integrity, and SOT323 thermal performance in space-constrained PCB layouts.
Technical Context
The BAV70WQ-7-F integrates two independent silicon switching diodes in a single SOT323 package with common cathode configuration (pin 1 = anode A, pin 2 = cathode, pin 3 = anode B). It operates across –55°C to +150°C and supports fast transient response due to low stored charge and optimized doping profile.
Its 625°C/W junction-to-ambient thermal resistance assumes FR-4 board mounting with 1"×1" 2 oz copper pads. The device uses matte tin-plated Alloy 42 leads and green molding compound compliant with RoHS 3 and halogen-free standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Recovery Time (trr) | 4.0 ns - enables reliable operation up to ~100 MHz switching in sample-and-hold or RF detector stages |
| Junction Capacitance (CT) | 2.0 pF at VR = 0 V, f = 1 MHz - minimizes signal loading in high-impedance bias networks and antenna coupling paths |
| Peak Repetitive Reverse Voltage (VRRM) | 75 V - supports 24 V and 48 V automotive bus monitoring with 3× safety margin |
| Forward Current (IFM) | 300 mA continuous - sufficient for LED indicator drive and logic-level clamping without external heatsinking |
| Operating Temperature Range | –55°C to +150°C - validated for under-hood automotive environments per AEC-Q101 stress testing |
| Thermal Resistance (RθJA) | 625°C/W - defines power derating slope: full 200 mW dissipation only at TA ≤ 75°C on standard FR-4 layout |
Pinout & Package
Package: SOT323 - surface-mount plastic package with 3 terminals, 0.006 g mass, UL 94V-0 rating, and moisture sensitivity level 1 (J-STD-020).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode of Diode A | Input node for first switching path; requires series current limiting in forward conduction |
| Pin 2 | Common Cathode | Shared return node; must be routed with low-inductance trace when both diodes operate simultaneously |
| Pin 3 | Anode of Diode B | Independent input node enabling dual-channel signal steering or redundancy in safety-critical paths |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 Qualified | Validated for automotive use including temperature cycling, HTRB, and ESD testing per IATF 16949 manufacturing controls |
| Lead-Free & Green | Meets RoHS 3 (2015/863/EU), <900 ppm Br/Cl, <1000 ppm Sb - eliminates halogenated flame retardants without compromising mold compound stability |
| Low trr / Low CT Co-Optimization | Simultaneous 4 ns recovery and 2.0 pF capacitance enables clean edge transitions in 50 Ω RF interfaces without added tuning components |
| SOT323 Thermal Performance | 625°C/W RθJA allows 150 mW dissipation at 105°C ambient - suitable for compact infotainment and ADAS sensor modules |
Applications
| Automotive CAN Bus Protection | High-Speed Signal Demodulation |
|---|---|
Use Scenario: Clamping transients on CAN_H/CAN_L lines during load dump or ESD events in body control modules. IC Role / Device Role / Timing Role: Dual-diode transient voltage suppressor with common cathode, placed before CAN transceiver input pins. Use Value: 4 ns trr ensures minimal distortion of 1 Mbps CAN FD bit edges; 75 V VRRM accommodates ISO 16750-2 pulse 5a requirements. | Use Scenario: Envelope detection in 2.4 GHz ISM-band receiver front-ends using passive mixer topology. IC Role / Device Role / Timing Role: RF switching diode operating in small-signal square-law region for AM demodulation. Use Value: 2.0 pF CT avoids detuning of 50 Ω matching networks; low VF drift over temperature maintains detector linearity. |
| USB Port ESD Clamp | Logic-Level Translation Interface |
Use Scenario: I/O protection for USB 2.0 D+/D− lines in automotive infotainment head units. IC Role / Device Role / Timing Role: Bidirectional clamping pair shunting ESD strikes to ground while preserving signal integrity. Use Value: Sub-1 nA IR at 20 V ensures negligible leakage during idle states; SOT323 footprint fits tight 0.5 mm pitch routing. | Use Scenario: Level shifting between 3.3 V microcontroller GPIOs and 5 V sensor outputs in engine control units. IC Role / Device Role / Timing Role: Passive open-drain translator using forward-biased diode drop for voltage offset. Use Value: 0.715 V VF at 1 mA enables precise 2.6 V logic-high threshold; matched dual elements ensure consistent channel timing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual high-speed switching diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BAV99W-7-F | Same SOT323 package, but 100 V VRRM and 3.5 ns trr; higher VF (0.855 V @ 10 mA) | Better suited for 48 V industrial bus protection where higher reverse margin is required | Select when >75 V blocking is needed; verify thermal margin due to higher VF-induced self-heating |
| MMBD7000LT1G | SC-70 package, 100 V VRRM, 4 ns trr, but not AEC-Q101 qualified; 2.5 pF CT | Targeted at commercial-grade consumer electronics, not automotive systems | Choose for cost-sensitive non-automotive designs; avoid where PPAP documentation or IATF 16949 traceability is mandatory |
Compared with BAV99W-7-F and MMBD7000LT1G, the BAV70WQ-7-F uniquely delivers AEC-Q101 compliance, 75 V/4 ns/2.0 pF balance, and green material certification - making it the only option qualified for production automotive signal conditioning where all three attributes are simultaneously required.
Availability
BAV70WQ-7-F is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, and high-frequency communications equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for BAV70WQ-7-F 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 BAV70WQ-7-F belongs to Diodes' automotive-qualified switching diode product line, engineered specifically for signal integrity preservation and transient resilience in harsh-environment electronic control units.
FAQ
Is BAV70WQ-7-F pin-compatible with BAV70W-7-F?
Yes - both share identical SOT323 pinout (anode–cathode–anode) and mechanical dimensions. The "Q" suffix denotes AEC-Q101 qualification, PPAP capability, and IATF 16949 manufacturing, with no electrical or physical differences affecting PCB layout or soldering.
What is the maximum allowable forward current at +125°C ambient?
At TA = +125°C, the power derating curve limits PD to 100 mW. With VF ≈ 0.85 V at 100 mA, the practical continuous forward current is ~115 mA - verified by Figure 1 in DS30063 Rev. 13-2, assuming standard FR-4 mounting.
Does BAV70WQ-7-F support bidirectional ESD protection?
No - its common-cathode configuration supports unidirectional clamping only. For bidirectional protection, two devices must be used back-to-back or a dedicated TVS array like D3V3Z5U2P should be selected instead.
Can BAV70WQ-7-F replace BAT54S in a 3.3 V logic interface?
Yes, with verification: both are dual common-cathode Schottky-like switching diodes in SOT323. However, BAV70WQ-7-F has higher VF (0.715 V min vs. BAT54S's 0.33 V), so check logic-high margin and dynamic power dissipation in high-frequency toggle scenarios.
BAV70WQ-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 75 V
- Current - Average Rectified (Io) (per Diode):
- 300mA (DC)
- Voltage - Forward (Vf) (Max) @ If:
- 1.25 V @ 150 mA
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 4 ns
- Current - Reverse Leakage @ Vr:
- 50 µA @ 75 V
- Operating Temperature - Junction:
- -55°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
BAV70WQ-7-F FAQ
1.How can I place an order for BAV70WQ-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BAV70WQ-7-F 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 BAV70WQ-7-F reliable?
The price and inventory of BAV70WQ-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAV70WQ-7-F is usually 5 days.
3.What payment methods are accepted for BAV70WQ-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAV70WQ-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAV70WQ-7-F?
BAV70WQ-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAV70WQ-7-F 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 BAV70WQ-7-F?
For technical support, including BAV70WQ-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAV70WQ-7-F requirements.
6.How does Aetrix verify that BAV70WQ-7-F is sourced from the original manufacturer or authorized distributors?
All BAV70WQ-7-F 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 BAV70WQ-7-F meets industry standards.
7.What is the process for return or replacement of BAV70WQ-7-F?
All BAV70WQ-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BAV70WQ-7-F, 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 BAV70WQ-7-F part is unused and in its original packaging.
Return procedure for BAV70WQ-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAV70WQ-7-F Tags
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BAV99-7-F
Diodes Incorporated
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BAT54C-7-F
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BAV99,215
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BAT54S-7-F
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BAV99LT1G
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