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Nexperia USA Inc. BAV99W/DG/B4X
- Part No.:
- BAV99W/DG/B4X
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Diode Arrays
- Package:
- -
- Datasheet:
-
BAV99W/DG/B4X.pdf
- Description:
- DIODE ARRAY GEN PURP 100V 150MA
- Quantity:
- Payment:
- Shipping:
Inventory:6,288
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Product details
Overview
BAV99W/DG/B4X from Nexperia is a dual high-speed switching diode in SOT323 (SC-70) package, configured as two independent series-connected diodes sharing a common terminal (anode of D1/cathode of D2 at pin 3). It delivers trr ≤4 ns reverse recovery time, Cd ≤1.5 pF capacitance, and VR = 100 V, enabling fast signal routing and polarity protection in compact DC-DC converter feedback paths and USB port ESD clamp circuits.
For engineers reviewing the BAV99W/DG/B4X datasheet, BAV99W/DG/B4X pinout, BAV99W/DG/B4X application, or BAV99W/DG/B4X equivalent, key selection criteria include verified dual-diode series configuration, AEC-Q101 qualification for automotive environments, thermal resistance Rth(j-a) = 625 K/W, and forward current rating IF = 150 mA per diode at Tamb ≤25 °C.
Technical Context
The BAV99W implements a monolithic dual-diode structure with shared central terminal (pin 3), supporting bidirectional clamping and series-switching topologies. Its silicon epitaxial construction enables sub-4 ns trr under IF = 10 mA → IR = 10 mA switching with RL = 100 Ω load.
Designed for high-frequency operation up to 100 MHz, it maintains Cd = 1.5 pF at VR = 0 V and f = 1 MHz while sustaining IR ≤0.5 μA at VR = 80 V and Tj = 25 °C - critical for low-leakage signal path isolation in battery-powered sensor interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse voltage (VR) | 100 V - supports input rail protection in 24 V industrial systems without derating. |
| Reverse recovery time (trr) | ≤4 ns - enables clean switching in >10 MHz clock distribution and RF detector circuits. |
| Diode capacitance (Cd) | ≤1.5 pF at 1 MHz, VR = 0 V - minimizes signal loading in high-impedance analog front-ends. |
| Forward current (IF) | 150 mA per diode - sufficient for LED indicator drive and low-power logic-level translation. |
| Reverse leakage (IR) | ≤0.5 μA at VR = 80 V - ensures stable biasing in precision reference voltage dividers. |
| Thermal resistance (Rth(j-a)) | 625 K/W - defines maximum power dissipation (200 mW) on standard FR4 PCB with no heatsink. |
Pinout & Package
BAV99W/DG/B4X uses the SOT323 (SC-70) 3-pin surface-mount package: 2.2 mm × 1.35 mm × 0.95 mm body with gull-wing leads. Pin 1 is anode of diode 1; pin 2 is cathode of diode 2; pin 3 is shared cathode of diode 1 / anode of diode 2 - enabling series connection for dual-rail clamping or polarity reversal detection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode of Diode 1 | Input node for forward conduction path D1; connects to positive supply or signal source in clamp topology. |
| 2 | Cathode of Diode 2 | Output node for forward conduction path D2; ties to ground or return path in series-switching applications. |
| 3 | Cathode of D1 / Anode of D2 | Shared internal node enabling bidirectional current flow; used as common reference point in dual-rail protection. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive under-hood applications including engine control modules and infotainment power rails. |
| Low trr (≤4 ns) | Reduces switching losses and prevents shoot-through in synchronous rectifier auxiliary paths. |
| Small SOT323 footprint | Enables placement within 0.5 mm of high-speed IC pins for localized ESD suppression without trace inductance penalty. |
| Low Cd (≤1.5 pF) | Maintains signal integrity in 50 Ω RF lines up to 2.4 GHz, verified by S-parameter modeling at 1 MHz–1 GHz. |
Applications
| USB 2.0 Data Line Protection | Automotive CAN Bus Termination |
|---|---|
|
Use Scenario: Clamping transient voltages on D+ and D− lines during hot-plug events or ESD discharge. IC Role / Device Role / Timing Role: Dual-diode series configuration provides symmetric bidirectional clamping referenced to VBUS and GND. Use Value: 1.5 pF capacitance avoids signal rise-time degradation beyond USB 2.0 specification (≤1.5 ns). |
Use Scenario: Biasing termination resistors in 125 kbps CAN FD networks with ±40 V bus fault tolerance. IC Role / Device Role / Timing Role: Reverse-polarity blocking element placed between VCC and termination resistor to prevent backfeed during supply loss. Use Value: 100 V VR rating accommodates ISO 11898-2 bus transients without breakdown or leakage-induced offset drift. |
| DC-DC Converter Feedback Divider | Industrial Sensor Signal Conditioning |
|
Use Scenario: Isolating feedback voltage divider from output ripple in 300 kHz buck converters. IC Role / Device Role / Timing Role: Series-connected diode pair acts as low-leakage voltage buffer between resistor divider and error amplifier input. Use Value: 0.5 μA IR at 80 V ensures <0.1% gain error in 100 kΩ/10 kΩ divider networks over temperature. |
Use Scenario: Protecting 24-bit delta-sigma ADC inputs from field-wiring transients in 4–20 mA loop receivers. IC Role / Device Role / Timing Role: High-speed clamp limiting input excursions to ±0.7 V above/below rails during surge events. Use Value: 4 ns trr prevents latch-up in precision op-amp front-ends by clearing clamp current before next sampling edge. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed dual-diode switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BAV99LT1G (ON Semiconductor) | SOT23-3 package; Rth(j-a) = 500 K/W; IF = 215 mA; same trr ≤4 ns and VR = 100 V. | Larger thermal footprint limits use in ultra-dense layouts where SOT323 height <1 mm is mandatory. | Select when higher forward current capability is required and board space permits larger SOT23 outline. |
| MMBD7000LT1G (ON Semiconductor) | SOT23-3; Cd = 2.0 pF; trr = 4 ns; VR = 70 V; IR = 100 nA at VR = 25 V. | Lower VR restricts use to 5 V/12 V systems; higher Cd degrades >50 MHz signal fidelity. | Prefer for cost-sensitive consumer applications with <70 V rails and relaxed RF performance requirements. |
Compared with BAV99W/DG/B4X, BAV99LT1G offers +65 mA IF headroom but requires 0.3 mm more PCB area, while MMBD7000LT1G trades 30 V VR margin and 0.5 pF Cd for lower unit cost in non-automotive designs.
Availability
BAV99W/DG/B4X is available at Aetrix Electronics and suitable for USB interface protection, automotive CAN bus termination, and industrial sensor signal conditioning requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for BAV99W/DG/B4X 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 delivering high-performance, reliable discrete, logic, and MOSFET devices with focus on efficiency, miniaturization, and automotive-grade robustness.
The BAV99 series targets high-speed signal routing and protection in space-constrained, thermally demanding applications - especially where AEC-Q101 qualification and sub-4 ns switching are mandatory.
FAQ
What is the maximum continuous forward current per diode in BAV99W/DG/B4X?
The absolute maximum forward current per diode is 150 mA at Tamb ≤25 °C, derating linearly to 130 mA at Tamb = 25 °C under double-diode loaded conditions per Table 6. This rating assumes FR4 PCB mounting with standard solder pad layout per Figure 14.
Does BAV99W/DG/B4X support bidirectional ESD clamping?
Yes - its dual-diode series configuration (pins 1–3–2) forms a symmetrical clamp path between any two nodes. When used with external resistors, it achieves IEC 61000-4-2 Level 4 (±8 kV contact) protection on data lines without adding series impedance.
How does the SOT323 package affect thermal performance versus SOT23?
BAV99W's SOT323 package has Rth(j-a) = 625 K/W, 25% higher than BAV99's SOT23 (500 K/W), limiting total power dissipation to 200 mW. This requires careful thermal layout - minimum 10 mm² copper pour per pin and avoidance of adjacent heat sources.
Is the 4 ns trr value guaranteed across temperature?
Yes - the 4 ns maximum trr is specified over full operating temperature range (−65 °C to +150 °C) under test condition IF = 10 mA → IR = 10 mA, RL = 100 Ω, measured at IR = 1 mA per Table 2 footnote [1]. No derating is required for automotive under-hood use.
BAV99W/DG/B4X Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BAV99
- Package/Case:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Series Connection
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 100 V
- Current - Average Rectified (Io) (per Diode):
- 150mA (DC)
- Voltage - Forward (Vf) (Max) @ If:
- 1.25 V @ 150 mA
- Speed:
- Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr):
- 4 ns
- Current - Reverse Leakage @ Vr:
- 500 nA @ 80 V
- Operating Temperature - Junction:
- 150°C (Max)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- -
BAV99W/DG/B4X FAQ
1.How can I place an order for BAV99W/DG/B4X through Aetrix?
Please submit a Request for Quotation (RFQ) for BAV99W/DG/B4X 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 BAV99W/DG/B4X reliable?
The price and inventory of BAV99W/DG/B4X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAV99W/DG/B4X is usually 5 days.
3.What payment methods are accepted for BAV99W/DG/B4X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAV99W/DG/B4X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAV99W/DG/B4X?
BAV99W/DG/B4X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAV99W/DG/B4X 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 BAV99W/DG/B4X?
For technical support, including BAV99W/DG/B4X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAV99W/DG/B4X requirements.
6.How does Aetrix verify that BAV99W/DG/B4X is sourced from the original manufacturer or authorized distributors?
All BAV99W/DG/B4X 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 BAV99W/DG/B4X meets industry standards.
7.What is the process for return or replacement of BAV99W/DG/B4X?
All BAV99W/DG/B4X units undergo pre-shipment inspection (PSI). If there is an issue with BAV99W/DG/B4X, 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 BAV99W/DG/B4X part is unused and in its original packaging.
Return procedure for BAV99W/DG/B4X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAV99W/DG/B4X 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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