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Vishay BAV99-HE3_A-08
- Part No.:
- BAV99-HE3_A-08
- Manufacturer:
- Vishay
- Category:
- Diode Arrays
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BAV99-HE3_A-08.pdf
- Description:
- DIODE ARRAY GP 70V 250MA SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:4,983
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Product details
Overview
BAV99-HE3_A-08 from Vishay Semiconductors is a dual small-signal switching diode in series configuration housed in an SOT-23 package, rated for 70 V repetitive peak reverse voltage, 350 mA forward current, and 6 ns reverse recovery time - used in high-speed polarity protection and signal clamping circuits in automotive body control modules.
For engineers reviewing the BAV99-HE3_A-08 datasheet, BAV99-HE3_A-08 pinout, BAV99-HE3_A-08 application, or BAV99-HE3_A-08 equivalent, key selection criteria include AEC-Q101 qualification, 1.5 pF diode capacitance at 0 V, 100 nA reverse leakage at 70 V, thermal resistance of 460 K/W on FR-4, and SOT-23 footprint compatibility with automated assembly.
Technical Context
The BAV99-HE3_A-08 integrates two silicon epitaxial planar diodes connected in series within a single SOT-23 package, enabling bidirectional clamping or sequential conduction paths without external wiring. Its fast 6 ns trr and low 1.5 pF capacitance support RF detector and high-frequency logic interface applications up to 100 MHz.
Designed for automotive-grade reliability, it meets AEC-Q101 stress testing requirements including temperature cycling, humidity bias, and mechanical shock. The device operates across -55 °C to +150 °C and features MSL 1 moisture sensitivity with UL 94 V-0 compliant molding compound.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Configuration | Dual diode in series - enables cascaded voltage drop or directional blocking without external interconnect |
| VRRM | 70 V - supports DC blocking in 24 V automotive systems with 3× safety margin |
| IF | 350 mA - sufficient for ESD transient suppression and logic-level signal routing |
| trr | 6 ns - ensures minimal switching distortion in 10–50 MHz clock/data lines |
| CD | 1.5 pF at 0 V, 1 MHz - preserves signal integrity in RF front-end bias networks |
| RthJA | 460 K/W on FR-4 - requires no heatsink for ≤100 mW dissipation in standard PCB layouts |
| Tj max | 150 °C - qualified for under-hood automotive environments per AEC-Q101 |
Pinout & Package
Package: SOT-23 (JEDEC TO-236AB), 3-terminal surface-mount plastic case, 2.9 mm × 1.3 mm × 0.95 mm, weight ≈ 9.2 mg, MSL 1, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode of Diode 1 | Input node for first diode in series chain; connects to signal source or supply rail |
| 2 | Cathode of Diode 1 / Anode of Diode 2 | Internal series junction - not externally accessible; defines mid-point voltage drop |
| 3 | Cathode of Diode 2 | Output node for second diode; ties to load, ground, or clamping reference |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements - enables use in BCM, lighting, and sensor interfaces without additional qualification |
| Series-connected dual diode | Eliminates need for two discrete SOT-23 placements and trace routing - reduces board area by ~40% vs. discrete pair |
| 6 ns reverse recovery time | Enables clean switching in 10–50 MHz digital signal paths without ringing or overshoot |
| 1.5 pF junction capacitance | Minimizes loading on high-impedance RF detector outputs and crystal oscillator feedback paths |
| UL 94 V-0 molding compound | Meets flammability safety standards for enclosed automotive and industrial enclosures |
Applications
| Automotive Body Control Module (BCM) | USB 2.0 Data Line Protection |
|---|---|
Use Scenario: Polarity reversal protection on LIN bus transceiver power input. IC Role / Device Role: Series-connected dual diode blocks reverse voltage while maintaining low forward drop during normal operation. Use Value: Prevents damage from battery jump-start misconnection; leverages AEC-Q101 rating and 150 °C operation for under-dash placement. | Use Scenario: ESD clamping on D+ and D− lines before USB PHY IC. IC Role / Device Role: Dual-diode string provides symmetrical bidirectional clamping to VDD and GND. Use Value: 6 ns trr and 1.5 pF CD preserve 480 Mbps signal integrity; SOT-23 fits tight layout near connector. |
| RF Detector Bias Network | Industrial PLC Digital Input Conditioning |
Use Scenario: DC bias feed to Schottky detector diode in 900 MHz ISM-band receiver. IC Role / Device Role: Low-capacitance series diode isolates bias rail from RF path while passing DC. Use Value: 1.5 pF CD avoids detuning matching network; 70 V VRRM accommodates transient spikes. | Use Scenario: Input surge suppression for 24 V digital inputs exposed to inductive load switching. IC Role / Device Role: Forward-biased series diode limits reverse polarity faults; cathode tied to 24 V rail. Use Value: 350 mA IF handles 100 ms overcurrent events; 460 K/W RthJA allows passive thermal management. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-series diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BAV99W-HE3-08 | SOT-323 package (smaller footprint); identical electrical specs and AEC-Q101 qualification | Better suited for space-constrained layouts where 1.3 mm × 1.75 mm SOT-323 is preferred over SOT-23 | Select when board real estate is critical and rework tolerance for smaller pitch is acceptable |
| MMBD7000-HE3-08 | Same SOT-23 package but dual diodes in common-cathode configuration; 100 V VRRM, 4 ns trr | Optimized for bidirectional clamping rather than unidirectional series blocking | Choose for ESD protection where symmetric voltage limiting is required instead of directional current flow |
Compared with BAV99-HE3_A-08, BAV99W-HE3-08 offers identical performance in a smaller footprint, while MMBD7000-HE3-08 shifts functionality toward bidirectional clamping - making the former a layout-reduction alternative and the latter a topology-alternative for different circuit roles.
Availability
BAV99-HE3_A-08 is available at Aetrix Electronics and suitable for automotive electronics, industrial PLC input conditioning, USB data line protection, and RF detector bias networks requiring stable component supply and AEC-Q101 compliance.
Supply support for BAV99-HE3_A-08 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
Vishay Intertechnology is a global manufacturer of discrete semiconductors and passive components, founded in 1962 and headquartered in Malvern, PA.
The BAV99 family belongs to Vishay's automotive-qualified small-signal diode product line, engineered specifically for high-reliability signal routing, polarity protection, and transient suppression in harsh-environment electronic control units.
FAQ
What is the pin configuration of the BAV99-HE3_A-08?
The BAV99-HE3_A-08 uses a 3-pin SOT-23 package with Pin 1 as Anode of Diode 1, Pin 2 as the internal connection between Cathode of Diode 1 and Anode of Diode 2 (not externally accessible), and Pin 3 as Cathode of Diode 2. This series configuration is fixed and non-reconfigurable. The BAV99-HE3_A-08 marking on the top surface aligns with standard SOT-23 orientation diagrams in Vishay's mechanical drawings.
Is the BAV99-HE3_A-08 suitable for automotive applications?
Yes, the BAV99-HE3_A-08 is explicitly AEC-Q101 qualified, tested across temperature cycling, humidity bias, and mechanical shock per automotive stress requirements. It operates from -55 °C to +150 °C and features UL 94 V-0 molding compound - making it suitable for engine bay, body control, and lighting modules. The BAV99-HE3_A-08 meets these criteria without derating under nominal conditions.
What is the maximum reverse voltage rating for the BAV99-HE3_A-08?
The BAV99-HE3_A-08 has a repetitive peak reverse voltage (VRRM) of 70 V and a non-repetitive peak reverse voltage (VRM) of 100 V. These ratings apply across the full operating temperature range and are validated per Vishay's absolute maximum ratings table. The BAV99-HE3_A-08 must not be subjected to sustained reverse bias exceeding 70 V in continuous operation.
How does the BAV99-HE3_A-08 compare to standard single diodes in terms of layout efficiency?
The BAV99-HE3_A-08 integrates two series-connected diodes in one SOT-23 footprint, eliminating the need for two separate SOT-23 placements, interconnecting traces, and associated solder joints. This reduces PCB area by approximately 40% versus discrete implementation and improves reliability by minimizing interconnect failure points. The BAV99-HE3_A-08 achieves this without compromising electrical performance - maintaining 6 ns trr and 1.5 pF CD.
What packaging options are available for the BAV99-HE3_A-08?
The BAV99-HE3_A-08 is supplied in 8 mm tape on 7″ reels containing 3,000 units per reel, with minimum order quantity of 15,000 units per box. This packaging supports high-speed pick-and-place assembly and complies with EIA-481 standards. Tape orientation follows standard SOT-23 carrier tape specifications, and the BAV99-HE3_A-08 marking is laser-etched for machine readability.
BAV99-HE3_A-08 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay
- 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):
- 70 V
- Current - Average Rectified (Io) (per Diode):
- 250mA
- Voltage - Forward (Vf) (Max) @ If:
- 1.25 V @ 150 mA
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 6 ns
- Current - Reverse Leakage @ Vr:
- 100 nA @ 70 V
- Operating Temperature - Junction:
- 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
BAV99-HE3_A-08 FAQ
1.How can I place an order for BAV99-HE3_A-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for BAV99-HE3_A-08 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 BAV99-HE3_A-08 reliable?
The price and inventory of BAV99-HE3_A-08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAV99-HE3_A-08 is usually 5 days.
3.What payment methods are accepted for BAV99-HE3_A-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAV99-HE3_A-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAV99-HE3_A-08?
BAV99-HE3_A-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAV99-HE3_A-08 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 BAV99-HE3_A-08?
For technical support, including BAV99-HE3_A-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAV99-HE3_A-08 requirements.
6.How does Aetrix verify that BAV99-HE3_A-08 is sourced from the original manufacturer or authorized distributors?
All BAV99-HE3_A-08 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 BAV99-HE3_A-08 meets industry standards.
7.What is the process for return or replacement of BAV99-HE3_A-08?
All BAV99-HE3_A-08 units undergo pre-shipment inspection (PSI). If there is an issue with BAV99-HE3_A-08, 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 BAV99-HE3_A-08 part is unused and in its original packaging.
Return procedure for BAV99-HE3_A-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAV99-HE3_A-08 Tags
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