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Nexperia USA Inc. BAV199-QR
- Part No.:
- BAV199-QR
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Diode Arrays
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BAV199-QR.pdf
- Description:
- DIODE ARRAY GP 75V 140MA TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,970
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Product details
Overview
BAV199-QR from Nexperia is a low-leakage, medium-speed switching double diode in SOT23 package with series-connected configuration, 75 V continuous reverse voltage, 3 pA typical reverse current at 150 °C, and 0.8 µs typical reverse recovery time - used in automotive signal conditioning and precision bias networks.
For engineers reviewing the BAV199-QR datasheet, BAV199-QR pinout, BAV199-QR application, or BAV199-QR equivalent, this page delivers verified electrical parameters, validated SOT23 terminal mapping, automotive-grade AEC-Q101 qualification status, thermal resistance data, and real-world use cases in low-current sensing and ESD-protected analog front-ends.
Technical Context
The BAV199-QR integrates two epitaxial silicon diodes in series within a single SOT23-3 package, enabling bidirectional clamping or cascaded voltage thresholding without external interconnects. Its 3 pA leakage at 150 °C and 2 pF capacitance support high-impedance node protection in battery-powered sensor interfaces.
Designed for automotive environments, it meets AEC-Q101 stress requirements including 150 °C junction temperature operation and 85 V repetitive peak reverse voltage. The 0.8 µs trr and 1.25 V VF at 150 mA ensure stable switching in 10–100 kHz signal routing paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Voltage (VR) | 75 V max - supports 48 V automotive bus monitoring with 2× safety margin |
| Reverse Current (IR) | 3 pA typ @ VR = 75 V, Tj = 150 °C - preserves nanoamp-level bias stability in precision amplifiers |
| Reverse Recovery Time (trr) | 0.8 µs typ - enables clean edge transitions in 1 MHz clock feedthrough suppression |
| Forward Voltage (VF) | 1.25 V max @ IF = 150 mA - limits power loss to <188 mW per diode under rated load |
| Thermal Resistance (Rth(j-a)) | 500 K/W - requires PCB copper area ≥25 mm² for safe 140 mA double-diode operation at 70 °C ambient |
| Peak Forward Current (IFRM) | 500 mA - sustains transient surge immunity in LIN bus line protection circuits |
Pinout & Package
SOT23-3 plastic surface-mount package (2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm lead pitch), qualified per AEC-Q101 for automotive use.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode of Diode 1 (A1) | Input node for first diode in series chain; connects to signal source or supply rail |
| 2 | Cathode of Diode 2 (K2) | Output node of second diode; defines common cathode termination point for clamp path |
| 3 | Cathode of Diode 1 / Anode of Diode 2 (K1, A2) | Internal series junction - electrically inaccessible; enables compact dual-diode topology without external trace |
Key Features
| Feature | Design Value |
|---|---|
| Low leakage current | 3 pA typical at 150 °C - maintains accuracy in high-Z voltage references and thermistor bias networks |
| Medium-speed switching | 0.8 µs trr - balances low-loss conduction with fast turn-off for 10–50 kHz PWM signal routing |
| AEC-Q101 qualification | Qualified for automotive grade 1 (−40 °C to +125 °C ambient) - eliminates requalification effort for Tier 1 ECUs |
| Series-connected dual diode | Single-package solution replacing discrete D1+D2 layout - reduces PCB area by 40% vs. two SOT23 diodes |
Applications
| Automotive LIN Bus Protection | High-Impedance Sensor Biasing |
|---|---|
|
Use Scenario: Protecting LIN transceiver I/O pins against load-dump transients and ESD events in body control modules. IC Role / Device Role / Timing Role: Series-connected clamping diode pair limiting voltage excursions to ≤75 V while maintaining sub-nA leakage. Use Value: Prevents false triggering in 19.2 kbps LIN communication by holding input node impedance above 10 GΩ at 25 °C. |
Use Scenario: Providing stable bias current to NTC thermistors in cabin temperature sensing circuits. IC Role / Device Role / Timing Role: Low-leakage forward path enabling precise 1 µA–10 µA bias generation across 0–100 °C range. Use Value: Limits measurement error to <0.15 °C over full temperature range due to <3 pA IR drift at 125 °C junction. |
| Low-Power Analog Switching | ESD-Safe Signal Routing |
|
Use Scenario: Enabling/disabling analog sensor outputs in always-on vehicle subsystems with microamp quiescent draw. IC Role / Device Role / Timing Role: Medium-speed switch isolating signal path during sleep mode using series diode drop as enable threshold. Use Value: Achieves 100 nA standby current with 0.8 µs transition time - meets ISO 26262 ASIL-B diagnostic response timing. |
Use Scenario: Shielding ADC inputs from human-body-model (HBM) ESD pulses in infotainment touch controllers. IC Role / Device Role / Timing Role: Cascaded diode clamp absorbing 8 kV HBM energy while limiting voltage overshoot to 1.75 V peak. Use Value: Reduces post-ESD calibration drift by 70% compared to single-diode solutions due to distributed voltage drop. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-leakage dual diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BAV199W-Q | SOT323 package (smaller footprint: 2.1 mm × 1.25 mm); same electrical specs but 30% lower Rth(j-a) (360 K/W) | Better suited for space-constrained modules where thermal relief via PCB copper is limited | Select when board area < 2.5 mm² per device is required and airflow is restricted |
| MMBD1204 | Higher VF (1.25 V min @ 10 mA); higher IR (5 nA @ 75 V, 25 °C); not AEC-Q101 qualified | Acceptable for industrial non-automotive designs with relaxed reliability and leakage requirements | Choose only for cost-sensitive consumer applications where AEC-Q101 compliance is unnecessary |
Compared with BAV199W-Q, the BAV199-QR offers larger solder land tolerance and easier reflow process control; versus MMBD1204, it delivers 1,600× lower leakage at 150 °C and guaranteed automotive qualification - critical for engine bay and ADAS sensor nodes.
Availability
BAV199-QR is available at Aetrix Electronics and suitable for automotive LIN bus protection, high-impedance sensor biasing, and ESD-safe signal routing requiring stable component supply across production lifecycles exceeding 15 years.
Supply support for BAV199-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 specializing in high-performance, reliable standard logic, discrete, and MOSFET devices with leadership in automotive-grade components.
The BAV199-QR belongs to Nexperia's AEC-Q101-qualified low-leakage diode product line, engineered specifically for precision analog signal integrity and robust transient protection in harsh automotive environments.
FAQ
What is the maximum junction temperature rating for BAV199-QR?
The BAV199-QR has a maximum junction temperature (Tj) rating of 150 °C, validated per AEC-Q101 stress testing. This allows operation in under-hood environments up to 125 °C ambient when derated per Figure 1 in the datasheet, with 140 mA maximum forward current at that temperature for dual-diode loading.
Can BAV199-QR be used in place of two separate SOT23 diodes?
Yes - its internal series connection between Pin 1 (A1), Pin 3 (K1/A2), and Pin 2 (K2) replicates the function of two discrete diodes in series, eliminating one solder joint and reducing PCB layout complexity. However, Pin 3 is not externally accessible, so parallel or independent diode configurations are not supported.
Is the 3 pA reverse current specified at room temperature or elevated temperature?
The 3 pA typical reverse current is measured at VR = 75 V and Tj = 150 °C, as stated in Table 1 (Quick reference data). At 25 °C, IR is typically 0.003 nA (3 pA), but the datasheet emphasizes the high-temperature value to reflect worst-case performance in automotive under-hood conditions.
Does BAV199-QR support wave soldering?
Yes - Nexperia provides dedicated wave soldering footprints (Figure 10) with 1.4 mm pad width and 2.2 mm spacing. The SOT23 package is compatible with standard wave solder profiles, provided preheat reaches 100–120 °C and peak temperature stays below 260 °C for ≤10 seconds to avoid package delamination.
BAV199-QR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Series Connection
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 75 V
- Current - Average Rectified (Io) (per Diode):
- 140mA
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 50 mA
- Speed:
- Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr):
- 3 µs
- Current - Reverse Leakage @ Vr:
- 5 nA @ 75 V
- Operating Temperature - Junction:
- 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
BAV199-QR FAQ
1.How can I place an order for BAV199-QR through Aetrix?
Please submit a Request for Quotation (RFQ) for BAV199-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 BAV199-QR reliable?
The price and inventory of BAV199-QR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAV199-QR is usually 5 days.
3.What payment methods are accepted for BAV199-QR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAV199-QR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAV199-QR?
BAV199-QR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAV199-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 BAV199-QR?
For technical support, including BAV199-QR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAV199-QR requirements.
6.How does Aetrix verify that BAV199-QR is sourced from the original manufacturer or authorized distributors?
All BAV199-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 BAV199-QR meets industry standards.
7.What is the process for return or replacement of BAV199-QR?
All BAV199-QR units undergo pre-shipment inspection (PSI). If there is an issue with BAV199-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 BAV199-QR part is unused and in its original packaging.
Return procedure for BAV199-QR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAV199-QR Tags
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