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Diodes Incorporated DT1240A-04LPQ-7
- Part No.:
- DT1240A-04LPQ-7
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- 10-UFDFN
- Datasheet:
-
DT1240A-04LPQ-7.pdf
- Description:
- DATALINE PROTECTION PP U-DFN2510
- Quantity:
- Payment:
- Shipping:
Inventory:2,085
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Product details
Overview
DT1240A-04LPQ from Diodes Incorporated is a 4-channel low-capacitance TVS diode array designed for ESD and surge protection of high-speed I/O lines. It features 5V reverse breakdown voltage, 5.5A peak pulse current (IEC 61000-4-5), 0.55pF typical channel input capacitance, ±14kV contact/±16kV air ESD rating per IEC 61000-4-2, and AEC-Q101 qualification for automotive use.
For engineers reviewing the DT1240A-04LPQ datasheet, DT1240A-04LPQ pinout, DT1240A-04LPQ application, or DT1240A-04LPQ equivalent, key selection criteria include low clamping voltage (7.5V at 10A TLP), ultra-low capacitance for signal integrity, U-DFN2510-10 package footprint compatibility, and automotive-grade reliability in USB/HDMI/PCIe interface protection.
Technical Context
The DT1240A-04LPQ integrates four independent bidirectional TVS diodes in a single U-DFN2510-10 package, each with 3.3V working voltage and 5V minimum breakdown. Its dynamic resistance is 0.2Ω (TLP), enabling fast response to ESD transients while maintaining low clamping under 5.5A 8/20µs surges.
It operates across –55°C to +85°C, supports FR-4 PCB mounting with 360°C/W junction-to-ambient thermal resistance, and delivers stable clamping performance with <0.04pF capacitance variation over input voltage - critical for preserving signal rise time in USB 3.0 and HDMI 2.0 interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Working Voltage | 3.3V DC - defines maximum continuous operating voltage before leakage exceeds 1μA, ensuring safe integration into 3.3V I/O rails. |
| Breakdown Voltage (VBR) | 5V min at 1mA - guarantees reliable triggering above system logic levels while avoiding false conduction during normal operation. |
| Clamping Voltage (VC) | 8.2V typ at 5.5A (8/20µs) - limits transient voltage seen by protected ICs to safe levels during lightning-surge events. |
| Channel Input Capacitance | 0.55pF typ at 1MHz - preserves signal integrity and bandwidth in >5Gbps interfaces like USB 3.1 Gen 1 and HDMI 1.4. |
| ESD Rating | ±14kV contact / ±16kV air (IEC 61000-4-2) - meets industrial and automotive ESD immunity requirements without external shielding. |
| TLP Dynamic Resistance | 0.2Ω - minimizes voltage overshoot during fast ESD pulses, reducing stress on downstream PHY circuitry. |
| AEC-Q101 Qualified | Yes - validated for automotive applications including infotainment and ADAS data links requiring PPAP and IATF 16949 manufacturing control. |
Pinout & Package
Package: U-DFN2510-10 (2.5mm × 1.0mm, 0.5mm pitch, 0.575mm height), lead-free NiPdAu terminations, moisture sensitivity level 1, UL 94V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 4, 5 | I/O Channel Terminal | Each connects to one protected high-speed line (e.g., USB D+/D–, HDMI TMDS+/-); bidirectionally clamps transients to VSS. |
| 3, 8 | VSS (Ground Reference) | Common cathode connection point for all four TVS channels; must be low-inductance path to system ground plane. |
| 6, 7, 9, 10 | No Connection | Unbonded die pads; electrically isolated and must not be connected to any net to avoid parasitic coupling or mechanical stress. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-Low Capacitance | 0.55pF typical per channel enables minimal signal distortion in 5–10 Gbps serial links without equalization overhead. |
| Bidirectional Clamping | Single-device protection for both positive and negative transients on each I/O line, eliminating need for dual-diode configurations. |
| Automotive Qualification | AEC-Q101 qualified with PPAP support and IATF 16949 manufacturing ensures supply continuity and traceability for Tier-1 automotive designs. |
| Low Dynamic Resistance | 0.2Ω TLP resistance reduces clamping voltage overshoot during sub-nanosecond ESD events, improving margin for sensitive SerDes receivers. |
| Green Packaging | Halogen- and antimony-free, RoHS 3 compliant (≤900ppm Br/Cl, ≤1000ppm Sb), meeting global environmental compliance mandates. |
Applications
| USB 3.0 Interface Protection | HDMI 2.0 Signal Line Protection |
|---|---|
Use Scenario: Protecting SuperSpeed differential pairs (TX/RX) in laptop docking stations and external storage enclosures against ESD and cable discharge events. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed directly at connector, shunting transients to ground before reaching USB 3.0 controller PHY. Use Value: 0.55pF capacitance avoids signal integrity degradation at 5Gbps, while 7.5V TLP clamping prevents receiver latch-up or damage. | Use Scenario: Shielding TMDS clock and data channels in 4K60 HDMI 2.0 source devices (e.g., set-top boxes, media players) from hot-plug and ESD events. IC Role / Device Role / Timing Role: Four-channel discrete TVS array placed adjacent to HDMI connector, providing symmetric clamping on all three TMDS pairs plus clock. Use Value: Matched channel capacitance ensures skew control (<0.04pF delta), preserving eye diagram opening and HDCP handshake reliability. |
| PCIe Gen3 Lane Protection | Automotive Infotainment Display Link |
Use Scenario: Safeguarding PCIe Gen3 x4 lanes in embedded GPU modules or NVMe SSD adapters exposed to handling ESD during field maintenance. IC Role / Device Role / Timing Role: Per-lane TVS protection at edge connector, with VSS pins tied to local ground plane to minimize loop inductance. Use Value: 5.5A IEC 61000-4-5 surge rating withstands board-level lightning-induced surges, while low capacitance maintains 8GT/s signal fidelity. | Use Scenario: ESD hardening of FPD-Link III or LVDS display interface cables in automotive head units and digital instrument clusters. IC Role / Device Role / Timing Role: AEC-Q101-qualified TVS array mounted at display connector, protecting serializer/deserializer I/Os in harsh vehicle environments. Use Value: –55°C to +85°C operating range and PPAP documentation support ensure long-term reliability in temperature-cycled cabin conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode array applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA6J33A-Q | Single-channel, 33V VBR, higher capacitance (≈30pF), DO-214AC package | Not suitable for high-speed data lines; intended for power rail or low-frequency signal protection | Select only for non-high-speed, non-differential applications where capacitance is not critical. |
| SP1006-04UTG | 4-channel, 3.3V VBR, 0.5pF capacitance, same U-DFN2510-10 package, but no AEC-Q101 qualification | Lacks automotive qualification and PPAP support; rated for commercial/industrial use only | Prefer for cost-sensitive consumer electronics where automotive compliance is unnecessary. |
Compared with SMA6J33A-Q and SP1006-04UTG, the DT1240A-04LPQ uniquely combines automotive qualification, 0.55pF capacitance, and 5V VBR in a space-constrained 2.5×1.0mm footprint - making it the only option for AEC-Q101-compliant high-speed serial interface protection.
Availability
DT1240A-04LPQ is available at Aetrix Electronics and suitable for USB 3.0, HDMI 2.0, and automotive infotainment display interfaces requiring stable component supply, long-term lifecycle assurance, and AEC-Q101-compliant sourcing.
Supply support for DT1240A-04LPQ 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 industrial, computing, and automotive markets.
The DT1240A-04LPQ belongs to Diodes' high-speed TVS diode array product line, engineered specifically for ESD and surge protection of multi-gigabit serial interfaces while maintaining signal fidelity and automotive-grade robustness.
FAQ
What is the maximum operating temperature range for the DT1240A-04LPQ?
The DT1240A-04LPQ operates reliably from –55°C to +85°C ambient temperature. This range is validated per AEC-Q101 stress testing and supports deployment in automotive engine bays, industrial control cabinets, and outdoor-connected devices without derating.
Can the DT1240A-04LPQ be used for HDMI 2.1 applications?
No - HDMI 2.1 requires ≤0.3pF channel capacitance to maintain signal integrity at 48Gbps. The DT1240A-04LPQ's 0.55pF typical capacitance exceeds this threshold and is validated only up to HDMI 2.0 (18Gbps). For HDMI 2.1, Diodes recommends the PTVS3.3S1UR series.
Are pins 6, 7, 9, and 10 required to be left floating in layout?
Yes - pins 6, 7, 9, and 10 are unconnected die pads with no internal bond wires. They must remain electrically isolated and unconnected to any net or copper pour to prevent mechanical stress, solder wicking, or unintended coupling that could degrade ESD performance.
Does the DT1240A-04LPQ support bidirectional signal paths like USB differential pairs?
Yes - each of the four I/O channels (pins 1, 2, 4, 5) is internally configured as a symmetrical bidirectional TVS structure. It clamps both positive and negative transients equally to VSS (pins 3 and 8), making it ideal for full-duplex differential interfaces without polarity constraints.
DT1240A-04LPQ-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- 10-UFDFN
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Steering (Rail to Rail)
- Unidirectional Channels:
- 4
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 3.3V (Max)
- Voltage - Breakdown (Min):
- 5V
- Voltage - Clamping (Max) @ Ipp:
- 9.5V
- Current - Peak Pulse (10/1000µs):
- 5.5A (8/20µs)
- Power - Peak Pulse:
- 52W
- Power Line Protection:
- Yes
- Applications:
- DVI, HDMI, USB
- Capacitance @ Frequency:
- 0.55pF @ 1MHz
- Operating Temperature:
- -55°C ~ 85°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- U-DFN2510-10
DT1240A-04LPQ-7 FAQ
1.How can I place an order for DT1240A-04LPQ-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DT1240A-04LPQ-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 DT1240A-04LPQ-7 reliable?
The price and inventory of DT1240A-04LPQ-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DT1240A-04LPQ-7 is usually 5 days.
3.What payment methods are accepted for DT1240A-04LPQ-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DT1240A-04LPQ-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DT1240A-04LPQ-7?
DT1240A-04LPQ-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DT1240A-04LPQ-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 DT1240A-04LPQ-7?
For technical support, including DT1240A-04LPQ-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DT1240A-04LPQ-7 requirements.
6.How does Aetrix verify that DT1240A-04LPQ-7 is sourced from the original manufacturer or authorized distributors?
All DT1240A-04LPQ-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 DT1240A-04LPQ-7 meets industry standards.
7.What is the process for return or replacement of DT1240A-04LPQ-7?
All DT1240A-04LPQ-7 units undergo pre-shipment inspection (PSI). If there is an issue with DT1240A-04LPQ-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 DT1240A-04LPQ-7 part is unused and in its original packaging.
Return procedure for DT1240A-04LPQ-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DT1240A-04LPQ-7 Tags
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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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Diodes Incorporated
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