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Diodes Incorporated BAV99T-7
- Part No.:
- BAV99T-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- SOT-523
- Datasheet:
-
BAV99T-7.pdf
- Description:
- DIODE ARRAY GP 85V 75MA SOT-523
- Quantity:
- Payment:
- Shipping:
Inventory:4,655
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Product details
Overview
BAV99T-7 from Diodes Incorporated is a dual high-speed switching diode in SOT523 package, featuring 85 V peak repetitive reverse voltage, 155 mA forward current per diode, 4.0 ns reverse recovery time, and 0.81 pF total capacitance at 0 V. It serves as a compact signal routing or clamping element in low-voltage digital interface protection circuits.
For engineers reviewing the BAV99T-7 datasheet, BAV99T-7 pinout, BAV99T-7 application, or BAV99T-7 equivalent, key selection criteria include fast switching performance (trr ≤ 4.0 ns), low junction capacitance for high-frequency signal integrity, dual-diode configuration in ultra-small SOT523, and compatibility with automated SMT assembly on space-constrained PCBs.
Technical Context
This dual diode integrates two independent, series-anode-connected silicon switching diodes in a single SOT523 package. Each diode exhibits matched electrical characteristics including identical VF (0.715–1.25 V across 1–150 mA), IR ≤ 2.0 µA at VR = 75 V, and CT = 0.81 pF at 1 MHz and 0 V bias.
The device operates across –55 °C to +150 °C, with thermal resistance RθJA = 833 °C/W on FR-4 board, and supports pulsed forward currents up to 500 mA (IFRM) while maintaining stable reverse blocking up to 85 V (VRRM).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 85 V - ensures reliable blocking in 24 V industrial control and 3.3/5 V logic-level signal clamping applications |
| IF (per diode) | 155 mA continuous - supports sustained operation in low-power data line conditioning without thermal derating |
| trr | 4.0 ns - enables clean edge transitions in >100 MHz digital signal routing and ESD transient suppression |
| CT | 0.81 pF at 0 V - minimizes capacitive loading on high-speed I²C, USB, or GPIO lines |
| RθJA | 833 °C/W - defines thermal limits for layout-dependent power dissipation in unheatsinked SMT designs |
| PD | 150 mW - sets maximum steady-state power handling under standard FR-4 mounting conditions |
Pinout & Package
Package: SOT523 - ultra-compact surface-mount plastic package (1.60 × 1.60 × 0.75 mm), moisture sensitivity level 1, lead-free matte tin terminals, weight ≈ 0.002 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode of Diode 1 | Input node for first diode path; connects to signal source in clamp or steering configurations |
| Pin 2 | Cathode of Diode 1 / Anode of Diode 2 | Common terminal enabling series-anode dual-diode topology; used for bidirectional clamping or polarity-selective routing |
| Pin 3 | Cathode of Diode 2 | Output node for second diode path; ties to reference rail (e.g., VCC or GND) in protection networks |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-fast switching | 4.0 ns reverse recovery time enables use in >100 MHz clock/data line protection without signal distortion |
| Dual-diode integration | Two matched silicon diodes in one SOT523 footprint reduce PCB area by ~40% vs. discrete SOT23 solutions |
| Low junction capacitance | 0.81 pF at zero bias preserves signal rise/fall times in high-speed interfaces like I²C and SPI |
| High conductance | Forward voltage ≤ 0.855 V at 10 mA ensures minimal voltage drop in low-voltage logic-level translation paths |
Applications
| USB 2.0 Data Line Protection | I²C Bus Level Translation |
|---|---|
Use Scenario: Protecting D+ and D− lines against ESD transients and overvoltage during hot-plug events. IC Role / Device Role / Timing Role: Dual-diode clamping network referenced to VCC and GND, leveraging matched VF and low CT to preserve 480 Mbps signal integrity. Use Value: Prevents damage to USB PHY ICs while adding <0.1 ns jitter due to sub-1 pF capacitance and symmetric conduction. | Use Scenario: Translating logic levels between 3.3 V master and 1.8 V slave devices on shared I²C bus. IC Role / Device Role / Timing Role: Passive bidirectional level shifter using common-cathode/anode configuration with pull-up resistors. Use Value: Enables interoperability without active circuitry; 4.0 ns trr avoids pulse narrowing at 400 kHz clock rates. |
| GPIO Signal Conditioning | Low-Voltage Power Rail Clamp |
Use Scenario: Filtering noise and limiting voltage excursions on microcontroller GPIO pins exposed to external sensors. IC Role / Device Role / Timing Role: Input protection diode pair routing transients to VDD and GND rails. Use Value: Limits pin voltage to within ±0.3 V of rails using low VF (0.715 V @ 1 mA), preventing latch-up in 3.3 V CMOS I/O. | Use Scenario: Suppressing inductive kickback from small solenoids or relays driven by 5 V logic-level MOSFETs. IC Role / Device Role / Timing Role: Freewheeling path for stored inductor energy, placed across coil terminals. Use Value: Dissipates 155 mA continuous current without thermal runaway; 85 V VRRM accommodates 2× supply voltage spikes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual high-speed switching diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BAV99LT1G | Same SOT-23 package; higher RθJA (400 °C/W), larger footprint, 5.0 ns trr | Less suitable for ultra-dense layouts; marginally slower switching affects >50 MHz signal fidelity | Select when legacy SOT-23 reflow profiles or higher power dissipation capability are required |
| MMBD7000LT1G | SOT-23 package; 100 V VRRM, 3.5 ns trr, but 1.2 pF CT | Higher reverse voltage margin but increased capacitive loading degrades >20 MHz signal edges | Prefer for 12–24 V industrial interfaces where speed is secondary to voltage headroom |
Compared with BAV99T-7, BAV99LT1G trades miniaturization for thermal robustness and MMDB7000LT1G prioritizes voltage rating over high-frequency response-making BAV99T-7 optimal for space- and speed-critical 3.3 V embedded signal paths.
Availability
BAV99T-7 is available at Aetrix Electronics and suitable for USB 2.0 interface protection, I²C level translation, and GPIO conditioning requiring stable component supply in high-mix, low-volume production.
Supply support for BAV99T-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, manufacturing, and sales operations across Asia, Europe, and North America.
The BAV99T-7 belongs to Diodes' general-purpose high-speed switching diode product line, engineered specifically for compact, high-reliability signal routing and protection in consumer, computing, and industrial electronics.
FAQ
What is the polarity configuration of the BAV99T-7?
The BAV99T-7 contains two diodes connected in series-anode configuration: Pin 1 is the anode of Diode 1, Pin 2 is the common cathode/anode node, and Pin 3 is the cathode of Diode 2. This arrangement supports bidirectional clamping when referenced to complementary rails and is confirmed by the top-view marking diagram in DS30260 Rev. 13–2.
Is the BAV99T-7 suitable for automotive applications?
The standard BAV99T-7 is not AEC-Q101 qualified; only the BAV99TQ variant carries that qualification and PPAP capability. BAV99T-7 is rated for –55 °C to +150 °C operating temperature and RoHS-compliant, but lacks automotive-specific change control, test reporting, and IATF16949 manufacturing certification.
How does the SOT523 package affect thermal performance?
With RθJA = 833 °C/W on FR-4, the SOT523 package limits continuous power dissipation to 150 mW at 25 °C ambient. Derating begins above 25 °C per Fig. 4 in DS30260; at 75 °C ambient, usable power drops to ~90 mW. Layout with recommended pad dimensions (C = 1.29 mm, X = 0.40 mm) is essential to achieve rated thermal performance.
Can the BAV99T-7 replace a single SOT-23 diode in existing designs?
No-BAV99T-7 is a dual-diode device with three terminals and series-anode topology, unlike single-diode SOT-23 parts (e.g., 1N4148W). Direct substitution would require schematic and layout revision to accommodate the third pin and functional dual-diode behavior; it is not a drop-in replacement for single-diode footprints or functions.
BAV99T-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):
- 75mA (DC)
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 50 mA
- Speed:
- Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr):
- 4 ns
- Current - Reverse Leakage @ Vr:
- 2 µA @ 75 V
- Operating Temperature - Junction:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-523
BAV99T-7 FAQ
1.How can I place an order for BAV99T-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for BAV99T-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 BAV99T-7 reliable?
The price and inventory of BAV99T-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAV99T-7 is usually 5 days.
3.What payment methods are accepted for BAV99T-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAV99T-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAV99T-7?
BAV99T-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAV99T-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 BAV99T-7?
For technical support, including BAV99T-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAV99T-7 requirements.
6.How does Aetrix verify that BAV99T-7 is sourced from the original manufacturer or authorized distributors?
All BAV99T-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 BAV99T-7 meets industry standards.
7.What is the process for return or replacement of BAV99T-7?
All BAV99T-7 units undergo pre-shipment inspection (PSI). If there is an issue with BAV99T-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 BAV99T-7 part is unused and in its original packaging.
Return procedure for BAV99T-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAV99T-7 Tags
-
BAV99-7-F
Diodes Incorporated
-
BAT54C-7-F
Diodes Incorporated
-
BAV99,215
Nexperia USA Inc.
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BAT54SLT1G
onsemi
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BAV70LT1G
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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
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