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Diodes Incorporated DT1240E-04LP-7
- Part No.:
- DT1240E-04LP-7
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- 10-UFDFN
- Datasheet:
-
DT1240E-04LP-7.pdf
- Description:
- TVS DIODE 3.3VWM 9.5VC 10DFN
- Quantity:
- Payment:
- Shipping:
Inventory:477
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Product details
Overview
DT1240E-04LP 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 0.55pF typical channel input capacitance, 5V reverse breakdown voltage (min), 7.5V clamping voltage at 10A TLP, and ±12kV contact/±14kV air ESD rating per IEC 61000-4-2 - deployed in HDMI 2.0, USB 3.0, and Serial ATA interfaces.
For engineers reviewing the DT1240E-04LP datasheet, DT1240E-04LP pinout, DT1240E-04LP application, or DT1240E-04LP equivalent, key selection criteria include channel capacitance matching for signal integrity, clamping voltage margin relative to I/O rail voltage (e.g., 3.3V), dynamic resistance under transient stress, and U-DFN2510-10 package thermal and layout compatibility with high-density PCBs.
Technical Context
This device implements four independent bidirectional TVS diodes between I/O pins and VSS, each with a 5V reverse standoff and sub-1Ω dynamic resistance (0.2Ω TLP). Its low 0.55pF capacitance minimizes signal distortion on differential pairs operating up to 5Gbps, while maintaining robust IEC 61000-4-5 lightning surge immunity (5A, 8/20µs).
The U-DFN2510-10 package enables compact placement near connectors, with NiPdAu terminals ensuring solderability and reliability. Thermal resistance (RθJA = 360°C/W) and 350mW power dissipation are validated on standard 2oz FR-4 layouts - critical for sustained transient energy absorption without thermal runaway.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Breakdown Voltage (VBR) | 5V min - ensures reliable triggering above 3.3V I/O rails without false conduction during normal operation |
| Clamping Voltage (VC) | 8.2V typ at 5A (8/20µs) - limits transient overvoltage to safe levels for downstream 3.3V logic |
| Channel Input Capacitance (CI/O) | 0.55pF typ - preserves signal integrity on USB 3.0 and HDMI 2.0 differential lanes |
| ESD Rating (IEC 61000-4-2) | ±12kV contact / ±14kV air - exceeds industrial and consumer interface immunity requirements |
| Dynamic Resistance (RDIF-R) | 0.2Ω - enables fast, low-voltage clamping response under high-current transients |
| Peak Pulse Current (IPP) | 5A per channel (IEC 61000-4-5) - handles lightning-induced surges without degradation |
Pinout & Package
Package: U-DFN2510-10 (10-pin, 2.5mm × 1.0mm × 0.575mm body height), lead-free, halogen-free, RoHS-compliant, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 4, 5 | I/O Channel Terminal | Each connects to one protected high-speed data line (e.g., HDMI TMDS+, USB D+, etc.) |
| 3, 8 | VSS (Ground) | Common cathode reference for all four TVS channels; requires low-inductance ground plane connection |
| 6, 7, 9, 10 | No Connection | Unbonded die pads - must remain unconnected in PCB layout to avoid parasitic coupling |
Key Features
| Feature | Design Value |
|---|---|
| Low Clamping Voltage | 7.5V at 10A TLP pulse - protects 3.3V I/O circuits within safe voltage margins |
| Ultra-Low Capacitance | 0.55pF typical per channel - avoids signal rise-time degradation on >1GHz serial links |
| High ESD Robustness | ±14kV air / ±12kV contact - meets IEC 61000-4-2 Level 4 for system-level ESD compliance |
| Compact Dual-Side Layout Support | U-DFN2510-10 footprint - allows placement adjacent to USB/HDMI connectors without trace stubs |
| Thermal Reliability | 360°C/W RθJA on 2oz FR-4 - sustains repeated 5A surges without junction overheating |
Applications
| HDMI 2.0 Interface Protection | USB 3.0 SuperSpeed Line Protection |
|---|---|
Use Scenario: Protecting TMDS differential pairs in 4K60 HDMI 2.0 source/sink devices against ESD events during hot-plug and handling. IC Role / Device Role / Timing Role: Bidirectional transient voltage suppressor placed directly at HDMI connector, clamping fast ESD pulses before they reach SerDes PHY. Use Value: 0.55pF capacitance prevents eye diagram closure; 7.5V clamping ensures TMDS common-mode voltage stays within 3.3V receiver tolerance. |
Use Scenario: Safeguarding USB 3.0 SuperSpeed RX/TX differential lanes in host controllers and peripheral hubs against electrostatic discharge. IC Role / Device Role / Timing Role: Four-channel TVS array integrated into USB Type-A/B/Type-C port layout, with dedicated I/O pins per lane pair. Use Value: Sub-1Ω dynamic resistance delivers rapid clamping response (<1ns), preserving 5Gbps signal fidelity during ±12kV contact ESD strikes. |
| Serial ATA (SATA III) Port Protection | DVI™ Digital Video Interface Protection |
Use Scenario: Shielding SATA III 6Gbps differential signaling paths in SSD enclosures and motherboard backplanes from board-level ESD. IC Role / Device Role / Timing Role: Point-of-entry TVS on SATA data lines (TX+/TX−, RX+/RX−), referenced to chassis ground via VSS pins. Use Value: 5V VBR and 8.2V VC ensure no false triggering during 3.3V SATA link training while limiting transient overshoot below 1.2× receiver ABS max. |
Use Scenario: ESD hardening of DVI™ dual-link TMDS channels in digital signage controllers and video processors. IC Role / Device Role / Timing Role: One DT1240E-04LP per DVI connector protecting four critical TMDS data lines (not clock), minimizing skew across channels. Use Value: Matched 0.55pF capacitance across all four channels maintains inter-pair timing alignment essential for dual-link pixel clock recovery. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode array applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ5.0A-Q | Single-channel, SMA package, 600W peak power, 12pF capacitance | Requires four discrete devices; unsuitable for >1Gbps interfaces due to high capacitance | Select only for cost-sensitive, low-speed DC/low-frequency I/O where layout density is not constrained |
| SP1003-04UTG | 4-channel, SOT-23-6 package, 0.8pF capacitance, 12V clamping at 5A | Larger footprint; higher capacitance degrades USB 3.0 eye margin; higher VC risks 3.3V I/O overstress | Acceptable for USB 2.0 or HDMI 1.4 only; avoid for HDMI 2.0 or SATA III designs requiring <0.6pF |
Compared with SMAJ5.0A-Q and SP1003-04UTG, DT1240E-04LP uniquely combines ultra-low 0.55pF capacitance, 0.2Ω dynamic resistance, and U-DFN2510-10 packaging - enabling direct integration into next-generation high-speed interface layouts without signal integrity compromise.
Availability
DT1240E-04LP is available at Aetrix Electronics and suitable for HDMI 2.0, USB 3.0, and Serial ATA III applications requiring stable component supply, consistent parametric performance across production lots, and long-term lifecycle support.
Supply support for DT1240E-04LP 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 consumer markets.
DT1240E-04LP belongs to Diodes' high-speed ESD protection product line, engineered specifically for preserving signal fidelity in multi-gigabit serial interfaces while delivering certified IEC 61000-4-2/4-5 immunity.
FAQ
What is the maximum operating temperature for DT1240E-04LP?
The DT1240E-04LP supports an operating junction temperature range of –55°C to +150°C. Its thermal resistance (RθJA = 360°C/W) is characterized on a standard 2oz FR-4 PCB layout; derating is required above +70°C ambient per Figure 1 in DS39294 Rev. 3–2.
Can DT1240E-04LP be used for unidirectional protection?
No - DT1240E-04LP is a bidirectional TVS array with symmetrical clamping behavior on each I/O pin relative to VSS. It is not configured for DC-biased or unidirectional applications; its design assumes AC-coupled or ground-referenced high-speed signals like HDMI or USB differential pairs.
Is the U-DFN2510-10 package compatible with standard reflow profiles?
Yes - the U-DFN2510-10 package is qualified for lead-free reflow per J-STD-020, with moisture sensitivity level 1. Recommended peak temperature is 260°C, and the NiPdAu terminal finish ensures reliable wetting and joint strength under IPC-A-610 Class 2/3 conditions.
Does DT1240E-04LP meet AEC-Q200 for automotive use?
No - DT1240E-04LP is not AEC-Q200 qualified. The datasheet explicitly states that automotive-grade variants require specific change control, PPAP capability, and IATF 16949 manufacturing - customers needing automotive qualification must contact Diodes Incorporated directly for approved alternatives.
DT1240E-04LP-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):
- 5A (8/20µs)
- Power - Peak Pulse:
- 47W
- Power Line Protection:
- Yes
- Applications:
- -
- Capacitance @ Frequency:
- 0.55pF @ 1MHz
- Operating Temperature:
- -55°C ~ 85°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- U-DFN2510-10
DT1240E-04LP-7 FAQ
1.How can I place an order for DT1240E-04LP-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DT1240E-04LP-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 DT1240E-04LP-7 reliable?
The price and inventory of DT1240E-04LP-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DT1240E-04LP-7 is usually 5 days.
3.What payment methods are accepted for DT1240E-04LP-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DT1240E-04LP-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DT1240E-04LP-7?
DT1240E-04LP-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DT1240E-04LP-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 DT1240E-04LP-7?
For technical support, including DT1240E-04LP-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DT1240E-04LP-7 requirements.
6.How does Aetrix verify that DT1240E-04LP-7 is sourced from the original manufacturer or authorized distributors?
All DT1240E-04LP-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 DT1240E-04LP-7 meets industry standards.
7.What is the process for return or replacement of DT1240E-04LP-7?
All DT1240E-04LP-7 units undergo pre-shipment inspection (PSI). If there is an issue with DT1240E-04LP-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 DT1240E-04LP-7 part is unused and in its original packaging.
Return procedure for DT1240E-04LP-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DT1240E-04LP-7 Tags
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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