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Diodes Incorporated BAV20WQ-7-F
- Part No.:
- BAV20WQ-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- SOD-123
- Datasheet:
-
BAV20WQ-7-F.pdf
- Description:
- DIODE GEN PURP 150V 400MA SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:5,920
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Product details
Overview
BAV20WQ-7-F from Diodes Incorporated is an AEC-Q101 qualified surface-mount fast switching diode in SOD-123 package, with 200 V peak repetitive reverse voltage (VRRM), 400 mA forward current (IF), and 50 ns reverse recovery time (tRR). It serves as a high-voltage clamping and signal routing device in automotive power supply rails and ECU input protection circuits.
For engineers reviewing the BAV20WQ-7-F datasheet, BAV20WQ-7-F pinout, BAV20WQ-7-F application, or BAV20WQ-7-F equivalent, key selection criteria include reverse breakdown margin, switching speed under 30 mA test conditions, thermal derating above 25°C ambient, and automotive-grade qualification status per IATF 16949.
Technical Context
This diode operates as a unidirectional PN junction switch with cathode-band polarity marking. Its 200 V VRRM rating supports 150 V DC blocking applications, and its 50 ns tRR enables use in <1 MHz digital signal routing and flyback snubbing.
The device uses alloy-42 leadframe with matte tin plating, rated for moisture sensitivity level 1 (J-STD-020), and exhibits 5.0 pF total capacitance at 0 V reverse bias-critical for high-frequency transient suppression in CAN/LIN bus interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - supports 150 V nominal rail clamping with 33% safety margin |
| IF | 400 mA continuous - sufficient for low-power sensor interface and logic-level signal steering |
| tRR | 50 ns - enables reliable operation in 1 MHz switching nodes and pulse-width modulated control paths |
| CT | 5.0 pF @ 0 V - minimizes capacitive loading on high-speed data lines (e.g., LIN bus) |
| VF | 1.0 V @ 100 mA - ensures low conduction loss in always-on protection paths |
| RθJA | 500 °C/W - requires minimum pad layout per Diodes' SOD123 outline for thermal compliance |
Pinout & Package
Package: SOD-123 molded plastic case (UL 94V-0), 0.01 g weight, cathode band polarity marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry node | Connected to lower-potential side of protected circuit; must be routed with minimal trace inductance for surge response |
| Cathode | Forward current exit / reverse blocking terminal | Marked by band; ties to higher-potential rail or ground return path depending on clamping topology |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive powertrain and body electronics per stress test requirements including HTOL, TCT, and ESD-HBM |
| SOD-123 surface-mount footprint | Enables automated placement on dense PCBs; compatible with standard reflow profiles (peak 260°C) |
| Lead-free & halogen-free construction | Meets RoHS 3 (2015/863/EU) and "Green" definition (<900 ppm Br/Cl, <1000 ppm Sb) |
| 500 °C/W thermal resistance | Determines maximum allowable power dissipation at elevated ambient temperatures per Fig. 1 derating curve |
Applications
| Automotive ECU Power Input Protection | Industrial Sensor Signal Clamping |
|---|---|
Use Scenario: Protecting microcontroller GPIOs and ADC inputs against load-dump transients up to ±100 V in 12 V vehicle systems. IC Role / Device Role / Timing Role: Fast-acting reverse-biased clamp that conducts only during overvoltage events, limiting voltage to ≤200 V. Use Value: Prevents latch-up and permanent damage without adding series resistance or propagation delay to analog signal paths. | Use Scenario: Limiting voltage excursions on 4–20 mA current-loop sensor outputs exposed to ESD or inductive kickback. IC Role / Device Role / Timing Role: Bidirectional transient suppressor configured in back-to-back arrangement with second diode. Use Value: Maintains signal integrity below 5.0 pF capacitance while surviving >8 kV contact ESD per IEC 61000-4-2. |
| On-Board Charger (OBC) Auxiliary Supply Snubbing | LIN Bus Line Protection |
Use Scenario: Suppressing flyback voltage spikes across MOSFET switches driving transformer-coupled auxiliary supplies in EV charging modules. IC Role / Device Role / Timing Role: Unidirectional freewheeling path during switch-off transition, with 50 ns recovery enabling <1 µs dead-time compatibility. Use Value: Reduces electromagnetic interference and prevents secondary-side voltage overshoot exceeding 200 V rating. | Use Scenario: Guarding LIN transceiver pins against battery disconnect transients and coupling noise in body control modules. IC Role / Device Role / Timing Role: Low-capacitance shunt clamp referenced to local ground, activated only above 200 V reverse threshold. Use Value: Preserves 19.2 kbps bit timing integrity while providing >100 V reverse standoff for fault tolerance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast-switching diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BAV20W-7-F | Same electrical specs but commercial-grade (non-AEC-Q101); no PPAP or IATF 16949 traceability | Not approved for automotive production; limited to prototyping or non-safety-critical industrial use | Select only if AEC-Q101 documentation and change control are not required |
| 1N4148W-7-F | Lower VRRM (100 V), faster tRR (4 ns), same SOD-123 package | Unsuitable for 150 V+ rails; preferred in high-speed logic gating where voltage margin is secondary | Choose when speed dominates over voltage headroom and automotive qualification is unnecessary |
Compared with BAV20W-7-F, the BAV20WQ-7-F adds full automotive process control and qualification at no electrical trade-off; versus 1N4148W-7-F, it trades 46× slower recovery for 2× higher reverse voltage capability-enabling robustness in 12 V/24 V system protection where speed is secondary to clamping margin.
Availability
BAV20WQ-7-F is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, on-board charger auxiliary supplies, and LIN bus line protection requiring stable component supply across multi-year production cycles.
Supply support for BAV20WQ-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 BAVxWQ series belongs to Diodes' automotive-qualified switching diode product line, engineered specifically for high-reliability voltage clamping and signal routing in harsh-environment vehicle subsystems.
FAQ
What is the maximum operating temperature for BAV20WQ-7-F?
The BAV20WQ-7-F has an operating junction temperature range of −55°C to +150°C. Its thermal resistance (RθJA) is 500°C/W on FR-4 board with minimum recommended pad layout; derating begins above +25°C ambient per Figure 1, reaching zero power at +150°C.
Is BAV20WQ-7-F pin-compatible with BAV20W-7-F?
Yes-both share identical SOD-123 package dimensions, cathode-band polarity marking, and terminal configuration. No PCB redesign is needed when upgrading from commercial to automotive grade, provided PPAP documentation and IATF 16949 sourcing are required.
Does BAV20WQ-7-F meet RoHS 3 and halogen-free requirements?
Yes. It is fully compliant with EU Directive 2015/863/EU (RoHS 3), contains no purposely added lead, and satisfies Diodes' "Green" definition: <900 ppm bromine, <900 ppm chlorine (≤1500 ppm total Br+Cl), and <1000 ppm antimony compounds.
What is the typical reverse leakage current at 100°C?
At rated DC blocking voltage (200 V) and TJ = +100°C, the peak reverse current (IRM) is specified at 15 µA maximum. This value reflects worst-case leakage under elevated temperature and full-rated reverse bias, critical for low-power standby circuits.
BAV20WQ-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 150 V
- Current - Average Rectified (Io):
- 400mA
- Voltage - Forward (Vf) (Max) @ If:
- 1.25 V @ 200 mA
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 50 ns
- Current - Reverse Leakage @ Vr:
- 100 nA @ 150 V
- Capacitance @ Vr, F:
- 5pF @ 0V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123
- Operating Temperature - Junction:
- -55°C ~ 150°C
BAV20WQ-7-F FAQ
1.How can I place an order for BAV20WQ-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BAV20WQ-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 BAV20WQ-7-F reliable?
The price and inventory of BAV20WQ-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 BAV20WQ-7-F is usually 5 days.
3.What payment methods are accepted for BAV20WQ-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAV20WQ-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAV20WQ-7-F?
BAV20WQ-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAV20WQ-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 BAV20WQ-7-F?
For technical support, including BAV20WQ-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAV20WQ-7-F requirements.
6.How does Aetrix verify that BAV20WQ-7-F is sourced from the original manufacturer or authorized distributors?
All BAV20WQ-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 BAV20WQ-7-F meets industry standards.
7.What is the process for return or replacement of BAV20WQ-7-F?
All BAV20WQ-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BAV20WQ-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 BAV20WQ-7-F part is unused and in its original packaging.
Return procedure for BAV20WQ-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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