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Diodes Incorporated DESD24VL1BAQ-7
- Part No.:
- DESD24VL1BAQ-7
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
DESD24VL1BAQ-7.pdf
- Description:
- DATALINE PROTECTION PP SOD323 T&
- Quantity:
- Payment:
- Shipping:
Inventory:282
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Product details
Overview
DESD24VL1BAQ from Diodes Incorporated is a bidirectional TVS diode designed for ESD protection of high-speed data lines in automotive and portable electronics. It features a 24 V reverse standoff voltage, 25.0 V minimum breakdown voltage, 38 V clamping voltage at 3 A peak pulse current, 11 pF channel capacitance, and ±30 kV IEC 61000-4-2 contact/air ESD rating - deployed in HDMI, USB, and LVDS interfaces.
For engineers reviewing the DESD24VL1BAQ datasheet, DESD24VL1BAQ pinout, DESD24VL1BAQ application, or DESD24VL1BAQ equivalent, this device is selected for low-capacitance transient suppression in space-constrained, AEC-Q101-compliant signal paths where ESD robustness and signal integrity are co-critical.
Technical Context
This TVS operates as a bidirectional clamp between signal line and ground, triggering when transient voltage exceeds its 25.0 V breakdown threshold. Its 11 pF input capacitance ensures minimal signal distortion on 1–3 Gbps differential links, while the 38 V clamping level protects downstream transceivers rated for ≤40 V absolute maximum.
The device uses silicon avalanche junction technology with a SOD323 package optimized for thermal dissipation under repetitive 8/20 µs surges up to 230 W peak power. It is qualified to AEC-Q101, manufactured in IATF 16949 facilities, and supports PPAP documentation for automotive Tier-1 supply chains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage (VRWM) | 24 V - Maximum continuous operating voltage before clamping begins; sets upper limit for normal signal swing in protected interface. |
| Breakdown Voltage (VBR min) | 25.0 V - Guaranteed avalanche conduction onset; ensures reliable triggering above system operating voltage with margin. |
| Clamping Voltage (VC @ IPP) | 38 V @ 3 A - Peak voltage seen by protected IC during 8/20 µs surge; must remain below downstream component's absolute max rating. |
| Channel Capacitance (CT) | 11 pF @ 0 V, 100 MHz - Low enough to avoid insertion loss or jitter degradation on HDMI 1.4/USB 2.0 lines. |
| ESD Rating | ±30 kV contact / ±30 kV air - Meets highest IEC 61000-4-2 immunity class; eliminates need for secondary board-level ESD mitigation. |
| Peak Pulse Power (PPP) | 230 W @ 8/20 µs - Sustains single high-energy transients without parametric shift or failure. |
| Operating Temperature | −55 °C to +150 °C - Supports under-hood and infotainment module deployment in automotive environments. |
Pinout & Package
Package: SOD323 - surface-mount plastic package with 0.30 mm lead width, 1.30 mm body width, and 2.50 mm height; optimized for automated placement and reflow compatibility per J-STD-020 Level 1 moisture sensitivity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (A) | Input terminal for bidirectional clamping | Connected to protected signal line; forms symmetrical avalanche path with cathode during positive or negative transients. |
| Cathode (K) | Input terminal for bidirectional clamping | Connected to signal line opposite anode; completes low-impedance discharge path to ground reference during ESD events. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD stress - enables direct use in ADAS camera modules and infotainment ports. |
| Ultra-low 11 pF capacitance | Preserves signal rise/fall times and eye diagram integrity on 480 Mbps USB 2.0 and 1.65 Gbps LVDS links without equalization. |
| ±30 kV IEC 61000-4-2 rating | Eliminates need for external spark gaps or multi-stage protection in consumer handhelds and automotive display interfaces. |
| SOD323 footprint compatibility | Matches industry-standard 1.3 × 1.7 mm land pattern; allows drop-in replacement of legacy TVS devices without PCB redesign. |
Applications
| HDMI Interface Protection | Automotive Camera Link |
|---|---|
Use Scenario: Protecting HDMI 1.4 source/sink ports against ESD during cable hot-plug and handling. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed directly at connector, shunting transients before reaching SerDes PHY. Use Value: 11 pF capacitance avoids pixel clock jitter; 38 V clamping prevents damage to 3.3 V HDMI transmitter/receiver IO cells. | Use Scenario: Shielding FPD-Link III or GMSL serial video links in rear-view or surround-view cameras. IC Role / Device Role / Timing Role: Signal-line TVS on differential pairs carrying 1–3 Gbps video streams from image sensor to SoC. Use Value: AEC-Q101 qualification ensures operation across −40 °C to +105 °C ambient; low capacitance preserves eye opening. |
| USB 2.0 Port Protection | LVDS Display Interface |
Use Scenario: Safeguarding USB 2.0 D+/D− lines in portable medical monitors and industrial tablets. IC Role / Device Role / Timing Role: Dual-channel (shared cathode) TVS placed adjacent to USB connector, referenced to system ground. Use Value: 24 V VRWM accommodates VBUS-coupled noise; 38 V VC stays below 40 V USB transceiver abs-max rating. | Use Scenario: Securing 24-bit RGB LVDS timing signals between display controller and TFT panel in automotive dashboards. IC Role / Device Role / Timing Role: Per-lane TVS on each differential pair, minimizing skew impact via matched 11 pF loading. Use Value: Symmetrical bidirectional clamping maintains common-mode integrity; SOD323 size fits tight pitch (<0.5 mm) routing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ24A | Unidirectional, 24 V VRWM, 38.9 V VC @ 7.7 A, 100 pF CT | Higher capacitance limits use to DC/low-speed lines; lacks AEC-Q101 qualification | Select only for non-automotive, non-high-speed applications where cost outweighs signal integrity. |
| SP1003-020 | Bidirectional, 24 V VRWM, 36 V VC @ 3 A, 15 pF CT, AEC-Q101 qualified | 15 pF vs. 11 pF - measurable impact on >1 Gbps LVDS eye height | Prefer when existing layout tolerates higher capacitance and SP1003-020's larger SOD-123 footprint is acceptable. |
Compared with SMAJ24A and SP1003-020, DESD24VL1BAQ delivers the lowest channel capacitance (11 pF) among AEC-Q101-qualified 24 V TVS diodes in SOD323, making it uniquely suitable for HDMI 1.4, USB 2.0, and FPD-Link III interfaces where signal fidelity is constrained by parasitic loading.
Availability
DESD24VL1BAQ is available at Aetrix Electronics and suitable for HDMI interface protection, automotive camera links, USB 2.0 port hardening, and LVDS display interfaces requiring stable component supply across automotive production cycles and industrial design-in windows.
Supply support for DESD24VL1BAQ 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 consumer markets.
The DESDxxVL1BAQ series targets high-speed interface protection with AEC-Q101 qualification, low capacitance, and compact SOD323 packaging - engineered specifically for ESD-hardened USB, HDMI, LVDS, and automotive serial link designs.
FAQ
What is the maximum clamping voltage of DESD24VL1BAQ under ESD stress?
The maximum clamping voltage is 38 V at 3 A peak pulse current (8/20 µs waveform), measured per IEC 61000-4-2 test conditions. This value ensures compatibility with 3.3 V and 5 V interface ICs having absolute maximum ratings ≥40 V, preventing latch-up or oxide damage during transient events.
Is DESD24VL1BAQ suitable for bidirectional data lines like USB D+ and D−?
Yes - its symmetrical bidirectional structure provides identical clamping behavior for positive and negative transients on either line. The 11 pF capacitance introduces negligible skew or attenuation on USB 2.0 full-speed (12 Mbps) and high-speed (480 Mbps) differential pairs when placed within 5 mm of the connector.
Does DESD24VL1BAQ require external biasing or control signals?
No - it is a passive, two-terminal device that operates without power, ground connections, or enable logic. Conduction occurs solely via avalanche breakdown when voltage across its terminals exceeds 25.0 V, making it compatible with any unpowered or hot-pluggable interface.
How does the SOD323 package affect thermal performance in sustained surge conditions?
The SOD323 package has a thermal resistance of 500 °C/W (junction-to-ambient) on standard FR-4 with 2 oz copper. Under repetitive 8/20 µs surges, derating begins above +25 °C ambient per Figure 1; for continuous operation, average power must stay ≤250 mW to avoid thermal runaway or parameter drift.
DESD24VL1BAQ-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):
- 24V
- Voltage - Breakdown (Min):
- 24V
- Voltage - Clamping (Max) @ Ipp:
- 38V
- Current - Peak Pulse (10/1000µs):
- 3A
- Power - Peak Pulse:
- 230W
- Power Line Protection:
- No
- Applications:
- HDMI, USB
- Capacitance @ Frequency:
- 11pF @ 100MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
DESD24VL1BAQ-7 FAQ
1.How can I place an order for DESD24VL1BAQ-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DESD24VL1BAQ-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 DESD24VL1BAQ-7 reliable?
The price and inventory of DESD24VL1BAQ-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DESD24VL1BAQ-7 is usually 5 days.
3.What payment methods are accepted for DESD24VL1BAQ-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DESD24VL1BAQ-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DESD24VL1BAQ-7?
DESD24VL1BAQ-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DESD24VL1BAQ-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 DESD24VL1BAQ-7?
For technical support, including DESD24VL1BAQ-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DESD24VL1BAQ-7 requirements.
6.How does Aetrix verify that DESD24VL1BAQ-7 is sourced from the original manufacturer or authorized distributors?
All DESD24VL1BAQ-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 DESD24VL1BAQ-7 meets industry standards.
7.What is the process for return or replacement of DESD24VL1BAQ-7?
All DESD24VL1BAQ-7 units undergo pre-shipment inspection (PSI). If there is an issue with DESD24VL1BAQ-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 DESD24VL1BAQ-7 part is unused and in its original packaging.
Return procedure for DESD24VL1BAQ-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DESD24VL1BAQ-7 Tags
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ESD9B5.0ST5G
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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