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Diodes Incorporated BAV199TQ-7-F
- Part No.:
- BAV199TQ-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- SOT-523
- Datasheet:
-
BAV199TQ-7-F.pdf
- Description:
- DIODE ARRAY GP 85V 215MA SOT-523
- Quantity:
- Payment:
- Shipping:
Inventory:9,384
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Product details
Overview
BAV199TQ-7-F from Diodes Incorporated is an ultra-small surface-mount dual low-leakage switching diode in SOT523 package, rated for 85 V peak reverse voltage, 215 mA forward current per diode, and featuring 5 nA max leakage at 75 V and 25°C. It is AEC-Q101 qualified and manufactured in IATF 16949 certified facilities for automotive signal routing and ESD protection circuits.
For engineers reviewing the BAV199TQ-7-F datasheet, BAV199TQ-7-F pinout, BAV199TQ-7-F application, or BAV199TQ-7-F equivalent, key selection criteria include ultra-low leakage (≤5 nA @ 75 V), fast reverse recovery (≤3.0 μs), SOT523 footprint compatibility, and automotive qualification status for under-hood sensor interfaces and CAN bus protection.
Technical Context
The BAV199TQ-7-F integrates two independent silicon epitaxial planar diodes in a single SOT523 package with common cathode configuration. Its low junction capacitance (2 pF typical @ 0 V, 1 MHz) and fast tRR support high-frequency signal steering and transient suppression in compact automotive electronics.
Designed for operation from –55°C to +150°C, it maintains ≤80 nA leakage at 75 V and +150°C, enabling reliable performance in engine control units and ADAS sensor modules where thermal stability and leakage control are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 85 V - Maximum repetitive reverse blocking voltage per diode, suitable for 24 V automotive supply rail clamping |
| IF (per diode) | 215 mA - Continuous forward current rating at 25°C, supports moderate-signal-level logic-level detection |
| IR @ 75 V, 25°C | 5.0 nA max - Ultra-low leakage enables precision biasing in high-impedance sensor front-ends |
| tRR | 3.0 μs max - Fast recovery time allows use in >100 kHz signal routing and pulse conditioning |
| CT @ 0 V, 1 MHz | 2 pF typical - Low junction capacitance minimizes signal distortion in RF-coupled or high-speed data lines |
| PD | 150 mW - Power dissipation limit on FR-4 board defines thermal design margin for PCB layout |
| TJ Range | –55°C to +150°C - Full automotive temperature range compliance for under-hood deployment |
Pinout & Package
SOT523 is a 3-terminal ultra-compact plastic surface-mount package measuring 1.60 × 1.60 × 0.75 mm (L × W × H), with gull-wing leads and common-cathode internal connection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode of Diode 1 | Input node for first diode path; connects to signal source or power rail requiring unidirectional conduction |
| 2 | Cathode (common) | Shared cathode terminal for both diodes; ties to reference potential (e.g., ground or bias rail) |
| 3 | Anode of Diode 2 | Input node for second independent diode path; enables dual-channel signal isolation or redundancy |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTOL, and ESD testing per stress requirements |
| Ultra-low leakage (5 nA @ 75 V) | Enables stable DC bias in high-impedance analog sensor circuits without drift or offset error |
| SOT523 footprint | Reduces PCB area by >50% vs. SOT23, supporting miniaturized ECUs and camera modules |
| Common-cathode dual-diode structure | Allows bidirectional signal clamping or dual-path ESD protection with single-component placement |
Applications
| Automotive Sensor Signal Conditioning | CAN Bus Transceiver Protection |
|---|---|
Use Scenario: Front-end interface for analog pressure or temperature sensors in engine control modules. IC Role / Device Role / Timing Role: Dual-diode clamp protecting ADC input pins from transients while preserving signal integrity via low CT and leakage. Use Value: Prevents sensor offset drift caused by leakage current and avoids signal attenuation due to 2 pF capacitance at 1 MHz. | Use Scenario: ESD and overvoltage protection on CAN_H and CAN_L lines in body control modules. IC Role / Device Role / Timing Role: Common-cathode dual diode provides symmetrical clamping to ground for differential bus lines. Use Value: Enables robust ±8 kV contact ESD protection per IEC 61000-4-2 while maintaining <3 μs recovery for CAN FD timing budgets. |
| Low-Power IoT Node Voltage Monitoring | Start-Stop System Battery Sensing |
Use Scenario: Precision battery voltage monitoring in always-on telematics units with microamp-level sleep current. IC Role / Device Role / Timing Role: Signal-level rectification and leakage-sensitive voltage divider isolation. Use Value: 5 nA leakage ensures <100 nA total added error in 100 kΩ/100 kΩ divider, preserving µA-level system sleep budget. | Use Scenario: Battery voltage sensing in 12 V start-stop systems exposed to load dump pulses up to 35 V. IC Role / Device Role / Timing Role: Reverse-polarity and transient clamp in front of voltage regulator input. Use Value: 85 V VRRM withstands ISO 7637-2 Pulse 5a (load dump), and 150 mW PD handles short-duration surges without thermal runaway. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual low-leakage diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BAV99W-7-F | Same SOT-323 package, but 70 V VRRM, 10 nA IR @ 75 V, not AEC-Q101 qualified | Limited to non-automotive consumer or industrial applications with lower voltage stress | Select when cost sensitivity outweighs automotive qualification and higher leakage is acceptable |
| NSR0230P2T5G | Single diode in SOD-523, 30 V VRRM, 100 nA IR @ 25 V, no AEC-Q101 | Not functionally equivalent: single-element, lower voltage, higher leakage, unsuitable for dual-path designs | Only consider for space-constrained single-diode roles where 85 V rating and dual topology are unnecessary |
Compared with BAV99W-7-F and NSR0230P2T5G, the BAV199TQ-7-F uniquely delivers AEC-Q101 qualification, 85 V blocking, and 5 nA leakage in a dual-common-cathode SOT523 - making it the only drop-in solution for automotive dual-signal protection where thermal and leakage margins are critical.
Availability
BAV199TQ-7-F is available at Aetrix Electronics and suitable for automotive sensor interfaces, CAN bus protection, and start-stop battery monitoring requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for BAV199TQ-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, specializing in high-reliability components for automotive, industrial, and computing markets.
The BAV199TQ belongs to Diodes' automotive-qualified discrete diode product line, engineered specifically for signal integrity preservation and transient resilience in harsh-environment electronic control units.
FAQ
What is the polarity configuration of the BAV199TQ-7-F?
The BAV199TQ-7-F uses a common-cathode dual-diode configuration: Pin 1 is Anode 1, Pin 2 is the shared Cathode, and Pin 3 is Anode 2. This arrangement enables symmetrical clamping or dual-path signal routing with a single ground reference point, confirmed in the top-view marking diagram and electrical test setup of DS42773 Rev. 2–2.
Is the BAV199TQ-7-F suitable for 48 V mild-hybrid vehicle systems?
No - its 85 V VRRM rating is insufficient for 48 V system load dump events (ISO 7637-2 Pulse 5a specifies up to 60 V for Class D, but actual spikes exceed 80 V). It is qualified for conventional 12 V/24 V automotive systems only; use higher-voltage alternatives like BAV21W-7-F (200 V) for 48 V architectures.
Does the BAV199TQ-7-F require derating above 25°C?
Yes - its 150 mW power dissipation is specified at 25°C ambient. Above that, linear derating applies at 0.18 mW/°C (150 mW ÷ 833 °C/W), reaching zero dissipation at 105°C ambient per Figure 1. Layout must follow Diodes' recommended SOT523 pad dimensions to achieve stated RθJA.
Can the BAV199TQ-7-F replace the BAV199LT1G in existing designs?
No - BAV199LT1G uses SOT-23 package (3.0 × 1.4 × 1.1 mm) and has different thermal resistance (RθJA ≈ 350 °C/W), pinout (anode-cathode-anode), and leakage (100 nA @ 75 V). The SOT523 footprint, common-cathode topology, and 5 nA leakage make BAV199TQ-7-F incompatible as a drop-in replacement without PCB and schematic revision.
BAV199TQ-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOT-523
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Series Connection
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 85 V
- Current - Average Rectified (Io) (per Diode):
- 215mA (DC)
- Voltage - Forward (Vf) (Max) @ If:
- 1.25 V @ 150 mA
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 3 µs
- Current - Reverse Leakage @ Vr:
- 5 nA @ 75 V
- Operating Temperature - Junction:
- -55°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-523
BAV199TQ-7-F FAQ
1.How can I place an order for BAV199TQ-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BAV199TQ-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 BAV199TQ-7-F reliable?
The price and inventory of BAV199TQ-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 BAV199TQ-7-F is usually 5 days.
3.What payment methods are accepted for BAV199TQ-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAV199TQ-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAV199TQ-7-F?
BAV199TQ-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAV199TQ-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 BAV199TQ-7-F?
For technical support, including BAV199TQ-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAV199TQ-7-F requirements.
6.How does Aetrix verify that BAV199TQ-7-F is sourced from the original manufacturer or authorized distributors?
All BAV199TQ-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 BAV199TQ-7-F meets industry standards.
7.What is the process for return or replacement of BAV199TQ-7-F?
All BAV199TQ-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BAV199TQ-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 BAV199TQ-7-F part is unused and in its original packaging.
Return procedure for BAV199TQ-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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