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Diodes Incorporated DT1240A-08LP3810-7
- Part No.:
- DT1240A-08LP3810-7
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- 9-UDFN
- Datasheet:
-
DT1240A-08LP3810-7.pdf
- Description:
- TVS DIODE 3.3VWM 10V U-DFN3810-9
- Quantity:
- Payment:
- Shipping:
Inventory:22,615
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Product details
Overview
DT1240A-08LP3810 from Diodes Incorporated is an 8-channel low-capacitance TVS diode array designed for high-speed I/O line protection in serial interface applications. It delivers 5V reverse working voltage, 0.6pF typical channel input capacitance, ±14kV contact/±16kV air ESD immunity per IEC 61000-4-2, and clamps to 7.5V at 5.5A (8/20µs), making it suitable for HDMI 2.0 and USB 3.1 data lanes.
For engineers reviewing the DT1240A-08LP3810 datasheet, DT1240A-08LP3810 pinout, DT1240A-08LP3810 application, or DT1240A-08LP3810 equivalent, key selection criteria include sub-1pF channel capacitance, multi-channel integrated ESD clamping, U-DFN3810-9 (Type B) footprint compatibility, and compliance with IEC 61000-4-2/4-5 surge standards for high-speed digital interfaces.
Technical Context
This device implements eight independent bidirectional TVS diodes in a single U-DFN3810-9 (Type B) package, each with a 5V reverse breakdown threshold and dynamic resistance of 0.25Ω under TLP testing. Its architecture enables simultaneous transient suppression across parallel high-speed signal pairs without crosstalk degradation.
The low 0.6pF input capacitance is achieved via optimized junction geometry and dielectric isolation, maintaining signal integrity up to 10Gbps in differential protocols. Clamping occurs at 7.5V (5.5A, 8/20µs) and 8.2V (10A, 100ns TLP), ensuring robust protection while minimizing voltage overshoot on sensitive transceivers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channels | 8 independent bidirectional ESD protection paths for parallel I/O lines |
| VRWM | 3.3V maximum reverse working voltage - ensures no leakage during normal 3.3V logic operation |
| VBR (Min) | 5V minimum breakdown voltage - triggers clamping before damage to 3.3V I/O buffers |
| CI/O (Typ) | 0.6pF typical input capacitance - preserves signal rise/fall times in USB 3.1/HDMI 2.0 links |
| IPP (Max) | 5.5A peak pulse current (8/20µs) - withstands IEC 61000-4-5 lightning surges |
| ESD Rating | ±14kV contact / ±16kV air per IEC 61000-4-2 - exceeds industrial ESD immunity requirements |
| Clamping Voltage | 7.5V at 5.5A (8/20µs) - limits transient overvoltage below 1.2× supply rail of protected ICs |
Pinout & Package
Package: U-DFN3810-9 (Type B), 3.8mm × 1.0mm × 0.5mm body, 9-terminal leadless plastic package with NiPdAu terminations and moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 5, 7, 9 | I/O Channel Anode | Input/output node for Channels 1–5; connects directly to protected signal line |
| 2, 4, 6, 8 | I/O Channel Cathode | Input/output node for Channels 6–8 and shared VSS return path; ties to ground plane |
| 9 (center) | VSS | Common cathode reference terminal - must be low-inductance connected to system ground |
Key Features
| Feature | Design Value |
|---|---|
| Low Capacitance Architecture | 0.6pF typical CI/O enables <1% signal distortion at 5GHz fundamental frequency |
| TLP Dynamic Resistance | 0.25Ω ensures minimal voltage overshoot during fast ESD events (tP = 100ns) |
| Multi-Standard Compliance | Fully meets IEC 61000-4-2 (ESD), -4-5 (surge), and RoHS 3 / Halogen-Free "Green" requirements |
| Thermal Performance | 360°C/W RθJA allows sustained 350mW power dissipation on standard FR-4 PCB layout |
Applications
| HDMI 2.0 Interface Protection | USB 3.1 Gen 1 Data Line Guarding |
|---|---|
|
Use Scenario: Protecting TMDS clock and data pairs in 4K@60Hz HDMI 2.0 sources and sinks against ESD events during hot-plug insertion. IC Role / Device Role / Timing Role: Bidirectional clamping diode array placed immediately adjacent to HDMI connector, shunting transients to ground before reaching SerDes PHY. Use Value: 0.6pF capacitance prevents eye diagram closure; 7.5V clamping avoids violating HDMI receiver's absolute maximum rating of 8.5V. |
Use Scenario: Safeguarding SuperSpeed differential pairs in USB 3.1 host controllers and peripheral devices during cable mating/unmating. IC Role / Device Role / Timing Role: Eight-channel ESD suppressor deployed per-lane (TX/RX × 2) with common VSS return to minimize ground bounce. Use Value: Sub-1pF loading maintains 5Gbps NRZ signal integrity; ±16kV air discharge rating covers worst-case human-body model exposure. |
| PCI Express Gen 3 Lane Shielding | DVI™ Dual-Link Video Path Protection |
|
Use Scenario: Securing PCIe Gen 3 x4 root complex and endpoint connectors against electrostatic discharge in embedded computing modules. IC Role / Device Role / Timing Role: Parallel TVS array placed at edge connector, with dedicated I/O pins routed to each differential lane (CLK, TX0–3, RX0–3). Use Value: 0.25Ω dynamic resistance limits clamping delay to <1ns, preventing bit errors during 8GT/s encoding transitions. |
Use Scenario: Protecting DVI dual-link TMDS channels (up to 24 data + 3 clock lines) in industrial display controllers and video processors. IC Role / Device Role / Timing Role: One DT1240A-08LP3810 per 8-signal group; multiple units used to cover full 27-pin DVI interface. Use Value: 5.5A IEC 61000-4-5 surge rating handles induced transients from nearby motor drives or relay switching in factory environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-channel low-capacitance TVS array applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ8.0A | Single-channel SMA package; 8.0V VBR; 12pF capacitance - not multi-channel or low-C | Requires 8 discrete devices; unsuitable for >1Gbps interfaces due to capacitance | Select only for cost-sensitive, low-speed (<100Mbps) parallel bus protection |
| SP1006-08UTG | 8-channel, 0.5pF CI/O, 5.5V VBR, but rated only to ±12kV ESD (IEC 61000-4-2) | Lacks IEC 61000-4-5 surge rating; lower clamping voltage (6.8V @ 5.5A) | Prefer where ESD-only threat model applies and tighter clamping is critical |
Compared with SMAJ8.0A and SP1006-08UTG, DT1240A-08LP3810 uniquely combines 8-channel integration, 0.6pF capacitance, ±16kV ESD, and 5.5A surge capability in a 3.8×1.0mm footprint - enabling compact, high-fidelity protection for modern high-speed serial links without trade-offs in speed or robustness.
Availability
DT1240A-08LP3810 is available at Aetrix Electronics and suitable for HDMI 2.0, USB 3.1, and PCI Express Gen 3 applications requiring stable component supply, consistent parametric performance, and long-term production continuity.
Supply support for DT1240A-08LP3810 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, signal integrity, and power management solutions for industrial, computing, and consumer markets.
DT1240A-08LP3810 belongs to Diodes' high-speed ESD protection product line, engineered specifically to meet the stringent capacitance, clamping, and footprint demands of next-generation serial interface standards including HDMI 2.0, USB 3.1, and DisplayPort.
FAQ
What is the maximum operating temperature range for DT1240A-08LP3810?
The DT1240A-08LP3810 operates reliably from –55°C to +150°C ambient temperature. This extended range supports deployment in automotive infotainment head units, industrial video encoders, and outdoor digital signage systems where thermal cycling and high-temperature PCB environments are common.
Does DT1240A-08LP3810 require external biasing or control signals?
No. DT1240A-08LP3810 is a passive, bidirectional TVS array with no external control pins or bias requirements. It functions automatically upon transient detection, drawing zero quiescent current during normal operation and activating only during ESD or surge events.
Can DT1240A-08LP3810 be used for unidirectional signal lines?
Yes - though optimized for bidirectional use, its symmetrical clamping behavior allows safe deployment on unidirectional lines. The 5V VBR and 7.5V clamping voltage ensure compatibility with 3.3V CMOS logic, and its low capacitance avoids signal degradation even in single-ended configurations.
Is there an automotive-grade version of this part?
Yes - the DT1240A-08LP3810Q is the AEC-Q101 qualified automotive variant, sharing identical electrical specs and package but tested to extended temperature range (–40°C to +125°C) and enhanced reliability standards for vehicle infotainment and ADAS camera interfaces.
DT1240A-08LP3810-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- 9-UDFN
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Steering (Rail to Rail)
- Unidirectional Channels:
- 8
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 3.3V (Max)
- Voltage - Breakdown (Min):
- 5V
- Voltage - Clamping (Max) @ Ipp:
- 10V
- Current - Peak Pulse (10/1000µs):
- 5.5A (8/20µs)
- Power - Peak Pulse:
- 55W
- Power Line Protection:
- No
- Applications:
- DVI, HDMI, USB
- Capacitance @ Frequency:
- 0.6pF @ 1MHz
- Operating Temperature:
- -55°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- U-DFN3810-9 (Type B)
DT1240A-08LP3810-7 FAQ
1.How can I place an order for DT1240A-08LP3810-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DT1240A-08LP3810-7 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-08LP3810-7 reliable?
The price and inventory of DT1240A-08LP3810-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DT1240A-08LP3810-7 is usually 5 days.
3.What payment methods are accepted for DT1240A-08LP3810-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DT1240A-08LP3810-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DT1240A-08LP3810-7?
DT1240A-08LP3810-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DT1240A-08LP3810-7 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-08LP3810-7?
For technical support, including DT1240A-08LP3810-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DT1240A-08LP3810-7 requirements.
6.How does Aetrix verify that DT1240A-08LP3810-7 is sourced from the original manufacturer or authorized distributors?
All DT1240A-08LP3810-7 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-08LP3810-7 meets industry standards.
7.What is the process for return or replacement of DT1240A-08LP3810-7?
All DT1240A-08LP3810-7 units undergo pre-shipment inspection (PSI). If there is an issue with DT1240A-08LP3810-7, 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-08LP3810-7 part is unused and in its original packaging.
Return procedure for DT1240A-08LP3810-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DT1240A-08LP3810-7 Tags
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ESD9B5.0ST5G
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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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onsemi
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Diodes Incorporated
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Diodes Incorporated
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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