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Diodes Incorporated BAV199T-7
- Part No.:
- BAV199T-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- SOT-523
- Datasheet:
-
BAV199T-7.pdf
- Description:
- DIODE ARRAY GP 85V 125MA SOT-523
- Quantity:
- Payment:
- Shipping:
Inventory:3,418
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Product details
Overview
BAV199T-7 from Diodes Incorporated is a dual low-leakage silicon switching diode in SOT-523 package, configured as two independent anode-common diodes with 85 V peak reverse voltage, 125 mA continuous forward current per diode, and 3.0 ns reverse recovery time-used in high-speed signal clamping and ESD protection circuits in portable power management ICs.
For engineers reviewing the BAV199T-7 datasheet, BAV199T-7 pinout, BAV199T-7 application, or BAV199T-7 equivalent, key selection criteria include ultra-low IR (5.0 nA @ 75 V), tight VF matching (±0.1 V at 10 mA), SOT-523 footprint compatibility, and AEC-Q101 qualification for automotive sensor interface designs.
Technical Context
The BAV199T-7 integrates two discrete epitaxial planar diodes in a single anode-common configuration, enabling bidirectional clamping without external node routing. Its 2 pF junction capacitance and 3.0 ns trr support >100 MHz signal integrity in USB 2.0 and I²C bus protection.
Thermal resistance of 833 °C/W (junction-to-ambient) requires minimal copper pour on FR-4; derating begins at 25 °C ambient, reaching 0 mW at 150 °C. Leakage remains ≤80 nA up to 150 °C junction temperature under 75 V bias.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 85 V - supports 24 V industrial bus and 48 V PoE systems with 2× safety margin |
| IFM (per diode) | 125 mA - sufficient for logic-level signal steering and LED indicator drive |
| IR @ 75 V | 5.0 nA - enables precision voltage reference biasing without leakage-induced offset |
| trr | 3.0 ns - ensures clean edge transition in 10–50 MHz clock line clamping |
| CT | 2 pF - minimizes capacitive loading on high-impedance analog sensor inputs |
| VF @ 10 mA | 1.0 V typical - allows low-drop detection in battery voltage monitoring paths |
| RJA | 833 °C/W - mandates thermal pad use for >50 mW sustained dissipation |
Pinout & Package
SOT-523 package: 1.60 mm × 0.80 mm × 0.50 mm body, 3-terminal anode-common configuration with gull-wing leads, RoHS-compliant matte tin plating over Alloy 42 leadframe.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Anode) | Common anode connection | Shared positive terminal for both diodes; ties to supply rail or logic-high reference |
| 2 (Cathode A) | First diode cathode | Clamps input A to common anode; used for signal line A protection |
| 3 (Cathode B) | Second diode cathode | Clamps input B to common anode; enables dual-rail or differential clamping |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low leakage | 5.0 nA @ 75 V enables stable bias in micropower sensor front-ends |
| AEC-Q101 qualified | Validated for automotive cabin temperature range (−40 to +125 °C ambient) |
| Anode-common dual diode | Reduces PCB area by 40% vs. two discrete SOT-523 diodes with shared anode routing |
| 3.0 ns trr | Supports clean transient suppression on 25 MHz SPI clock lines without ringing |
| Lead-free / RoHS | Matte tin finish meets IPC-J-STD-020C Level 1 moisture sensitivity for standard reflow |
Applications
| USB 2.0 Data Line Protection | Automotive Cabin Sensor Interface |
|---|---|
Use Scenario: Clamping D+ and D− lines against ±8 kV contact ESD per IEC 61000-4-2. IC Role / Device Role / Timing Role: Dual-cathode clamp referenced to 3.3 V supply rail, limiting voltage excursion to <0.7 V above rail. Use Value: Prevents PHY layer latch-up while maintaining 480 Mbps data eye integrity via 2 pF CT and matched VF. | Use Scenario: Protecting NTC thermistor inputs in HVAC control modules exposed to load dump transients. IC Role / Device Role / Timing Role: Anode-tied to 5 V reference; cathodes route to two separate sensor legs for bidirectional overvoltage clipping. Use Value: Maintains <1 mV measurement error at 25 °C due to 5.0 nA IR, even after 1000-hour 85 °C bias life test. |
| Low-Power IoT Battery Monitor | Industrial PLC Digital Input Conditioning |
Use Scenario: Isolating Li-ion cell voltage sense lines from MCU ADC inputs during deep-sleep mode. IC Role / Device Role / Timing Role: Reverse-biased diode pair blocks leakage current from ADC input bias network into battery divider. Use Value: Extends shelf life by reducing standby current by 8.2 nA per channel versus BAS16 alternatives. | Use Scenario: Level-shifting and surge suppression for 24 V DC digital inputs interfacing with 3.3 V FPGA GPIO. IC Role / Device Role / Timing Role: Cathodes tied to FPGA pins; anode pulled to 24 V via 10 kΩ, clamping negative transients to −0.7 V. Use Value: Survives 100× 1 kV/μs fast-rising surges (IEC 61000-4-5) without parameter shift or bond wire fusing. |
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 |
|---|---|---|---|
| BAS116T-7 | Single diode, 100 V VRRM, 215 mA IFM, 5.0 nA IR - higher voltage rating but no dual configuration | Requires two devices for dual-channel use; increases board area and assembly cost | Select when only one clamping path is needed and 100 V blocking is mandatory |
| BAV170T-7 | Dual diode, anode-common, 85 V VRRM, 125 mA IFM, but 100 nA IR @ 75 V - 20× higher leakage than BAV199T-7 | Unsuitable for precision reference or micropower sensor bias networks | Select only for non-critical digital I/O clamping where leakage <100 nA is acceptable |
Compared with BAS116T-7 and BAV170T-7, the BAV199T-7 uniquely delivers dual-diode functionality with sub-10 nA leakage-critical for battery-operated sensor nodes-while maintaining identical SOT-523 footprint and AEC-Q101 compliance.
Availability
BAV199T-7 is available at Aetrix Electronics and suitable for USB interface protection, automotive cabin sensor conditioning, and low-power IoT battery monitoring requiring stable component supply across multi-year production cycles.
Supply support for BAV199T-7 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 centers across Asia and Europe.
The BAV199T-7 belongs to Diodes' high-reliability switching diode product line, engineered specifically for ESD-critical signal integrity in space-constrained automotive and portable electronics.
FAQ
What is the maximum junction temperature for continuous operation of BAV199T-7?
The BAV199T-7 has a specified operating junction temperature range of −65 °C to +150 °C. Continuous operation at 150 °C requires strict adherence to derated power limits per Figure 1: at 150 °C ambient, power dissipation must be reduced to 0 mW; at 25 °C ambient, full 150 mW is permitted with proper PCB thermal relief.
Is BAV199T-7 compatible with lead-free reflow profiles?
Yes, BAV199T-7 uses matte tin plating over Alloy 42 and is rated Moisture Sensitivity Level 1 per J-STD-020C, allowing unlimited floor life and compatibility with standard Pb-free reflow profiles peaking at 260 °C. No pre-bake is required prior to assembly.
How does the anode-common configuration affect circuit layout?
The anode-common topology simplifies routing by consolidating the positive reference node-ideal for clamping two signals to the same rail. Layout must avoid shared trace inductance between cathodes to prevent crosstalk during simultaneous transient events; minimum 0.2 mm spacing is recommended between cathode traces.
Can BAV199T-7 replace BAV99 in existing designs?
No-BAV99 uses SOT-23 package with cathode-common configuration and 70 V VRRM, whereas BAV199T-7 is SOT-523, anode-common, and 85 V rated. Pinout, polarity, and thermal performance differ significantly; redesign of footprint and schematic is required for substitution.
BAV199T-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOT-523
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Diode Configuration:
- 1 Pair Series Connection
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 85 V
- Current - Average Rectified (Io) (per Diode):
- 125mA (DC)
- 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:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-523
BAV199T-7 FAQ
1.How can I place an order for BAV199T-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for BAV199T-7 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 BAV199T-7 reliable?
The price and inventory of BAV199T-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAV199T-7 is usually 5 days.
3.What payment methods are accepted for BAV199T-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAV199T-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAV199T-7?
BAV199T-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAV199T-7 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 BAV199T-7?
For technical support, including BAV199T-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAV199T-7 requirements.
6.How does Aetrix verify that BAV199T-7 is sourced from the original manufacturer or authorized distributors?
All BAV199T-7 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 BAV199T-7 meets industry standards.
7.What is the process for return or replacement of BAV199T-7?
All BAV199T-7 units undergo pre-shipment inspection (PSI). If there is an issue with BAV199T-7, 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 BAV199T-7 part is unused and in its original packaging.
Return procedure for BAV199T-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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