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Nexperia USA Inc. BAV99QA-QZ
- Part No.:
- BAV99QA-QZ
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Diode Arrays
- Package:
- 3-XDFN Exposed Pad
- Datasheet:
-
BAV99QA-QZ.pdf
- Description:
- DIODE ARR GP 90V 290MA DFN1010D3
- Quantity:
- Payment:
- Shipping:
Inventory:5,551
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Product details
Overview
BAV99QA-Q from Nexperia is a dual-series high-speed switching diode pair in a DFN1010D-3 (SOT1215) package, configured as two diodes in series with shared terminal (K1/A2), supporting reverse polarity protection and high-frequency signal routing. It delivers trr ≤ 4 ns, VR = 90 V, Cd ≤ 2 pF, and is AEC-Q101 qualified for automotive power rail protection.
For engineers reviewing the BAV99QA-Q datasheet, BAV99QA-Q pinout, BAV99QA-Q application, or BAV99QA-Q equivalent, this device is selected for compact, high-reliability DC/DC input stage clamping, USB-C port protection, and space-constrained ESD-tolerant signal path isolation where low capacitance and fast recovery are critical.
Technical Context
This dual-series diode integrates two discrete high-speed switching diodes sharing a common internal node (Pin 3 = K1/A2), enabling bidirectional blocking with single-package footprint efficiency. Its architecture supports series-connected forward conduction paths while maintaining independent reverse voltage capability per diode segment.
The DFN1010D-3 package features side-wettable flanks for automated optical inspection (AOI) and solder joint validation, with thermal resistance Rth(j-a) = 410 K/W on FR4 and Rth(j-sp) = 265 K/W to solder point - optimized for thermally constrained automotive PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Voltage (VR) | 90 V - supports 24 V and 48 V automotive supply rails with 2× safety margin against transients. |
| Reverse Recovery Time (trr) | 4 ns - enables clean switching up to ~100 MHz in flyback snubbers and high-frequency rectification. |
| Diode Capacitance (Cd) | 2 pF at 0 V - minimizes signal distortion in RF coupling and high-speed data line protection. |
| Forward Current (IF) | 290 mA per diode - sufficient for low-power load switching and bias network current handling. |
| Leakage Current (IR) | 0.5 µA at 80 V - ensures stable DC blocking in battery monitoring and always-on circuits. |
| Junction Temperature (Tj) | 150 °C - rated for under-hood automotive environments without derating below 125 °C ambient. |
Pinout & Package
Encapsulated in the ultra-thin DFN1010D-3 (SOT1215) leadless plastic package: 1.1 mm × 1.0 mm × 0.37 mm body, side-wettable flanks, 0.75 mm pitch, and visible solderable side pads for AOI compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (Diode 1) | Input node for first diode; connects to upstream supply or signal source in series protection path. |
| 2 | Cathode (Diode 2) | Output node for second diode; ties to load or downstream circuit requiring polarity-controlled conduction. |
| 3/4 | Cathode (Diode 1) / Anode (Diode 2) | Shared internal node - forms series connection; must be routed as single net with no external connection. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD (HBM ≥ 8 kV). |
| Ultra-low profile (0.37 mm height) | Enables stacking under connectors or beneath shields in ADAS camera modules and infotainment PCBs. |
| Side-wettable flanks (SWF) | Supports automated X-ray and AOI inspection of solder joints without requiring bottom-side access. |
| Thermal enhancement via cathode pad | 265 K/W junction-to-solder-point resistance allows 470 mW total dissipation with minimal copper area. |
Applications
| Automotive Power Rail Protection | USB-C Port Polarity Guard |
|---|---|
Use Scenario: Reverse battery connection protection on 12 V/24 V vehicle ECUs and body control modules. IC Role / Device Role / Timing Role: Series-blocking diode pair preventing destructive reverse current flow during jump-start or wiring error. Use Value: Eliminates need for external fuse + MOSFET solution; maintains <1.25 V forward drop at 150 mA while surviving load dump pulses. |
Use Scenario: Preventing damage from misoriented USB-C plug insertion in automotive infotainment head units. IC Role / Device Role / Timing Role: Bidirectional polarity enforcement using shared-node series configuration across VBUS lines. Use Value: Achieves <2 pF capacitance to preserve USB 2.0 signal integrity while blocking >90 V reverse transients. |
| High-Speed Signal Clamping | Low-Power Load Switch Isolation |
Use Scenario: Transient suppression on CAN FD or LIN bus stubs exposed to ESD and inductive kickback. IC Role / Device Role / Timing Role: Fast-recovery clamp limiting voltage excursions to <1.75 V peak forward recovery during nanosecond-scale events. Use Value: 4 ns trr ensures clamping action completes before bus arbitration window closes, preserving timing margins. |
Use Scenario: Isolating always-on microcontroller backup domains from main power domain during sleep mode. IC Role / Device Role / Timing Role: Low-leakage (0.5 µA @ 80 V) series switch enabling <1 µA system standby current. Use Value: Reduces quiescent current by >95% vs. standard Schottky alternatives without sacrificing turn-on speed. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-series high-speed switching diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BAV99W-Q | Same die, but in SOT323 package (1.3 × 1.3 × 0.95 mm); higher Rth(j-a) = 450 K/W; no side-wettable flanks. | Not AOI-compatible; unsuitable for ultra-thin automotive modules; requires larger PCB area. | Select when legacy SMT lines lack SWF inspection capability and height constraint is relaxed. |
| PMEG3010CEH | Single Schottky diode (30 V, 1 A, 0.45 V VF); no series configuration; Cd = 40 pF; not AEC-Q101 qualified. | Lacks reverse polarity protection topology; higher capacitance degrades high-speed signal fidelity. | Only suitable for low-voltage, non-automotive DC/DC output rectification where speed is secondary to VF. |
Compared with BAV99W-Q, the BAV99QA-Q offers 25% lower profile and AOI support for next-gen automotive miniaturization; versus PMEG3010CEH, it provides true series-blocking architecture, 20× lower capacitance, and automotive qualification - making it irreplaceable in safety-critical polarity guard roles.
Availability
BAV99QA-Q is available at Aetrix Electronics and suitable for automotive ECU protection, USB-C interface hardening, and high-speed signal clamping requiring stable component supply across production lifecycles.
Supply support for BAV99QA-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 essential semiconductors - delivering performance, efficiency, and consistency for automotive, industrial, and consumer markets.
The BAV99QA-Q belongs to Nexperia's AEC-Q101-qualified high-speed switching diode product line, engineered specifically for robust, space-efficient reverse polarity and transient protection in automotive power distribution networks.
FAQ
What is the correct PCB footprint for BAV99QA-Q?
The official reflow footprint for DFN1010D-3 (SOT1215) specifies 0.4 mm wide × 0.35 mm long solder lands (2×), 0.45 mm spacing between lands, and 1.2 mm overall length. Pad dimensions match Figure 12 in the Nexperia datasheet v.1 (20220628); deviation risks solder bridging or insufficient wetting on side flanks.
Can BAV99QA-Q replace a single BAV99 in existing designs?
No - BAV99QA-Q contains two diodes in series with shared terminal (Pin 3), unlike the single-diode BAV99 in SOT23. Direct substitution would break circuit topology; redesign is required to accommodate the series configuration and 4-terminal layout.
Is thermal pad connection required for BAV99QA-Q?
No dedicated thermal pad exists; heat dissipation occurs through the cathode-side solder joint (Pin 2) and side-wettable flanks. The datasheet specifies Rth(j-sp) = 265 K/W to the solder point - so full-surface soldering of Pin 2 and proper land design per Figure 12 is mandatory for rated power handling.
Does BAV99QA-Q support bidirectional current flow?
No - it conducts unidirectionally per diode segment. In series configuration, current flows only from Pin 1 → Pin 3 → Pin 2. Reverse bias blocks all current; it does not function as a bidirectional TVS or symmetrical clamp.
BAV99QA-QZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- 3-XDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Series Connection
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 90 V
- Current - Average Rectified (Io) (per Diode):
- 290mA
- 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:
- 500 nA @ 80 V
- Operating Temperature - Junction:
- 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DFN1010D-3
BAV99QA-QZ FAQ
1.How can I place an order for BAV99QA-QZ through Aetrix?
Please submit a Request for Quotation (RFQ) for BAV99QA-QZ 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 BAV99QA-QZ reliable?
The price and inventory of BAV99QA-QZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAV99QA-QZ is usually 5 days.
3.What payment methods are accepted for BAV99QA-QZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAV99QA-QZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAV99QA-QZ?
BAV99QA-QZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAV99QA-QZ 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 BAV99QA-QZ?
For technical support, including BAV99QA-QZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAV99QA-QZ requirements.
6.How does Aetrix verify that BAV99QA-QZ is sourced from the original manufacturer or authorized distributors?
All BAV99QA-QZ 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 BAV99QA-QZ meets industry standards.
7.What is the process for return or replacement of BAV99QA-QZ?
All BAV99QA-QZ units undergo pre-shipment inspection (PSI). If there is an issue with BAV99QA-QZ, 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 BAV99QA-QZ part is unused and in its original packaging.
Return procedure for BAV99QA-QZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAV99QA-QZ Tags
-
BAV99-7-F
Diodes Incorporated
-
BAT54C-7-F
Diodes Incorporated
-
BAV99,215
Nexperia USA Inc.
-
BAT54SLT1G
onsemi
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BAV70LT1G
onsemi
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BAT54CLT1G
onsemi
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BAT54S-7-F
Diodes Incorporated
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BAV99LT1G
onsemi
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BAT54S,215
Nexperia USA Inc.
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BAS40-04LT1G
onsemi
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MMBD1503-TP
Micro Commercial Co
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BAV99WT1G
onsemi
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