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Diodes Incorporated DESD5V0S1BAQ-7
- Part No.:
- DESD5V0S1BAQ-7
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
DESD5V0S1BAQ-7.pdf
- Description:
- TVS DIODE 5VWM 14VC SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:13,533
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Product details
Overview
DESD5V0S1BAQ-7 from Diodes Incorporated is a bidirectional TVS diode designed for ESD protection of high-speed data lines in automotive infotainment systems. It features a 5.5 V minimum breakdown voltage (VBR), 12 A peak pulse current (IPP), 35 pF typical channel capacitance (CT), and ±30 kV IEC 61000-4-2 contact/air ESD rating - enabling robust protection for USB and HDMI interfaces without signal integrity degradation.
For engineers reviewing the DESD5V0S1BAQ-7 datasheet, DESD5V0S1BAQ-7 pinout, DESD5V0S1BAQ-7 application, or DESD5V0S1BAQ-7 equivalent, this device is selected for AEC-Q101-qualified automotive ESD suppression where low capacitance, fast clamping response, and SOD323 footprint compatibility are critical design constraints.
Technical Context
This TVS diode operates as a voltage-clamped transient suppressor across a single bidirectional signal path. Its 5 V reverse standoff voltage (VRWM) and 10–14 V clamping voltage (VCL) at 1–12 A ensure reliable overvoltage limiting during ESD events while maintaining signal fidelity on high-speed lines.
The device uses a planar silicon junction structure optimized for low differential resistance (0.4 Ω at 10 A) and stable thermal performance (RθJA = 625 °C/W on FR-4). Its SOD323 package supports automated placement and meets J-STD-020 moisture sensitivity Level 1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 5 V - Maximum continuous reverse operating voltage before leakage exceeds 100 nA; sets upper limit for safe signal swing. |
| VBR (min) | 5.5 V - Minimum breakdown voltage at 1 mA; ensures activation only during transients, not normal operation. |
| VCL @ 12 A | 14 V - Clamped voltage under full 8/20 µs surge; defines worst-case overvoltage seen by protected IC. |
| CT (typ) | 35 pF - Channel input capacitance at 0 V, 1 MHz; low enough to avoid signal distortion on USB 2.0/HDMI DDC lines. |
| IPP | 12 A - Peak pulse current per IEC 61000-4-5; validates surge handling capability beyond ESD-only stress. |
| ESD Rating | ±30 kV (contact/air) per IEC 61000-4-2 - Confirmed immunity to worst-case human-body-model ESD events. |
| PPP | 130 W - Peak pulse power dissipation (8/20 µs); determines thermal survivability during transient overload. |
Pinout & Package
Package: SOD323 - surface-mount, two-terminal plastic case (1.30 mm × 1.70 mm × 0.90 mm), matte tin-plated alloy 42 leadframe, UL 94V-0 rated, 0.005 g weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (Bidirectional) | Common terminal for symmetrical clamping; connects to signal line requiring ESD protection. |
| 2 | Cathode (Bidirectional) | Common terminal for symmetrical clamping; ties to same signal line as Pin 1 - forms single-channel bidirectional path. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD stress - required for infotainment ECUs. |
| Low 35 pF channel capacitance | Minimizes insertion loss and timing skew on 480 Mbps USB 2.0 and HDMI DDC channels without retuning PCB layout. |
| ±30 kV IEC 61000-4-2 ESD rating | Exceeds automotive OEM requirements for touch-panel and connector interface zones exposed to direct user contact. |
| SOD323 footprint | Enables high-density routing on compact head-unit PCBs and supports standard reflow profiles with MSL Level 1 handling. |
Applications
| USB 2.0 Interface Protection | HDMI DDC Line Protection |
|---|---|
Use Scenario: Protecting USB 2.0 data lines (D+/D−) in automotive head units against hot-plug ESD and cable discharge events. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed directly at connector entry point to shunt transients before reaching USB PHY. Use Value: 35 pF capacitance avoids signal rise-time degradation; 14 V clamping prevents PHY latch-up during ±30 kV contact discharge. | Use Scenario: Safeguarding HDMI Display Data Channel (DDC) lines (SCL/SDA) in infotainment displays from ESD induced by user interaction with touch overlays. IC Role / Device Role / Timing Role: Low-capacitance TVS mounted inline on 100 kHz I²C bus traces to preserve clock/data integrity during transient coupling. Use Value: 5 V VRWM aligns with DDC logic levels; ±30 kV rating covers worst-case panel-integrated ESD paths. |
| Automotive Infotainment Console | Telematics Control Unit (TCU) I/O |
Use Scenario: ESD hardening of auxiliary analog/digital I/O ports (e.g., CAN FD debug headers, audio jacks) in center-stack infotainment consoles. IC Role / Device Role / Timing Role: Discrete TVS deployed per-pin on exposed connectors to meet ISO 10605 and OEM-specific ESD test plans. Use Value: AEC-Q101 qualification ensures operation across −40°C to +125°C ambient; SOD323 allows placement adjacent to dense connector footprints. | Use Scenario: Protecting low-speed serial control lines (e.g., UART, SPI) between TCU baseband processor and modem module from board-level ESD coupling. IC Role / Device Role / Timing Role: Standoff-limited clamping device placed at module boundary to prevent transient propagation into RF-sensitive subsystems. Use Value: 0.4 Ω differential resistance ensures minimal voltage overshoot during fast-rising transients; RoHS/Green compliance satisfies Tier-1 supply chain mandates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ5.0A | Unidirectional; 5.0 V VRWM; 600 W PPP; SMA package (larger, higher CT ≈ 350 pF) | Requires polarity-aware layout; unsuitable for AC-coupled or bidirectional buses like USB/HDMI. | Select only for DC-biased power rails where polarity is fixed and capacitance is non-critical. |
| TPD2E001DRYR | Two-channel, 15 pF CT, 5.5 V VRWM, SOT-553 package; lower IPP (4 A) | Offers dual-line protection in same footprint but reduced surge margin; not AEC-Q101 qualified. | Prefer for consumer-grade portable devices; avoid in automotive due to missing AEC-Q101 validation. |
Compared with SMAJ5.0A and TPD2E001DRYR, DESD5V0S1BAQ-7 uniquely combines bidirectional operation, AEC-Q101 qualification, 35 pF capacitance, and SOD323 size - making it the only option validated for production automotive USB/HDMI ESD protection without layout or reliability trade-offs.
Availability
DESD5V0S1BAQ-7 is available at Aetrix Electronics and suitable for automotive infotainment systems, USB 2.0 interface modules, and HDMI display subsystems requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for DESD5V0S1BAQ-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, specializing in high-reliability protection, power management, and signal integrity solutions for automotive, industrial, and computing markets.
The DESD5V0S1BAQ-7 belongs to Diodes' AEC-Q101-qualified TVS diode product line, engineered specifically for ESD-hardened automotive infotainment and telematics interfaces where low capacitance and small footprint are mandatory.
FAQ
What is the maximum clamping voltage of DESD5V0S1BAQ-7 at 12 A?
The clamping voltage (VCL) is 14 V under an 8/20 µs surge waveform at 12 A peak pulse current, as specified in the Electrical Characteristics table. This value represents the maximum voltage imposed on the protected line during worst-case transient conditions and is measured with defined test setup per IEC 61000-4-5.
Is DESD5V0S1BAQ-7 suitable for USB 3.0 or HDMI 2.0 applications?
No - its 35 pF typical capacitance exceeds recommended limits for USB 3.0 SuperSpeed (≤1.5 pF) and HDMI 2.0 (≤2 pF) differential pairs. It is validated only for USB 2.0, HDMI DDC, and other ≤480 Mbps interfaces where capacitance tolerance is ≥25 pF.
Does DESD5V0S1BAQ-7 require external biasing or control signals?
No - it is a passive, two-terminal device with no bias, enable, or configuration pins. It operates automatically: conducting only during overvoltage transients above VBR, remaining high-impedance (<100 nA leakage) during normal 0–5 V signal operation.
How does the SOD323 package affect thermal performance in high-density PCB layouts?
With RθJA = 625 °C/W on standard FR-4 (2 oz copper), the SOD323 package relies on adjacent copper pour for heat spreading. In dense layouts, thermal relief must be minimized and local ground planes maximized - especially when multiple units operate simultaneously near connectors under repeated ESD stress.
DESD5V0S1BAQ-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- SC-76, SOD-323
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 5V (Max)
- Voltage - Breakdown (Min):
- 5.5V
- Voltage - Clamping (Max) @ Ipp:
- 14V
- Current - Peak Pulse (10/1000µs):
- 12A (8/20µs)
- Power - Peak Pulse:
- 130W
- Power Line Protection:
- No
- Applications:
- HDMI, USB
- Capacitance @ Frequency:
- 35pF @ 1MHz
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
DESD5V0S1BAQ-7 FAQ
1.How can I place an order for DESD5V0S1BAQ-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DESD5V0S1BAQ-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 DESD5V0S1BAQ-7 reliable?
The price and inventory of DESD5V0S1BAQ-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DESD5V0S1BAQ-7 is usually 5 days.
3.What payment methods are accepted for DESD5V0S1BAQ-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DESD5V0S1BAQ-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DESD5V0S1BAQ-7?
DESD5V0S1BAQ-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DESD5V0S1BAQ-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 DESD5V0S1BAQ-7?
For technical support, including DESD5V0S1BAQ-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DESD5V0S1BAQ-7 requirements.
6.How does Aetrix verify that DESD5V0S1BAQ-7 is sourced from the original manufacturer or authorized distributors?
All DESD5V0S1BAQ-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 DESD5V0S1BAQ-7 meets industry standards.
7.What is the process for return or replacement of DESD5V0S1BAQ-7?
All DESD5V0S1BAQ-7 units undergo pre-shipment inspection (PSI). If there is an issue with DESD5V0S1BAQ-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 DESD5V0S1BAQ-7 part is unused and in its original packaging.
Return procedure for DESD5V0S1BAQ-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DESD5V0S1BAQ-7 Tags
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