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Diodes Incorporated DT1240A-04LP-7
- Part No.:
- DT1240A-04LP-7
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- 10-UFDFN
- Datasheet:
-
DT1240A-04LP-7.pdf
- Description:
- TVS DIODE 3.3VWM 9.5VC 10DFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,638
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DT1240A-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, featuring 0.55 pF typical channel capacitance, 5 V reverse breakdown voltage (min), 5.5 A peak pulse current (IEC 61000-4-5), and ±14 kV contact / ±16 kV air ESD rating per IEC 61000-4-2 - deployed in USB 3.0, HDMI 2.0, and Serial ATA interfaces.
For engineers reviewing the DT1240A-04LP datasheet, DT1240A-04LP pinout, DT1240A-04LP application, or DT1240A-04LP equivalent, key selection criteria include channel input capacitance (<0.65 pF), clamping voltage at 5.5 A (8.2 V), dynamic resistance (0.2 Ω), package footprint compatibility (U-DFN2510-10), and compliance with IEC 61000-4-2/4-5 for high-speed serial port hardening.
Technical Context
The DT1240A-04LP integrates four independent bidirectional TVS diodes between I/O pins and VSS, each with a 5 V nominal breakdown threshold and sub-10 V clamping under 5.5 A 8/20 µs surge. Its U-DFN2510-10 package enables compact routing for differential pairs without signal integrity degradation.
It operates within -55°C to +85°C ambient, supports 3.6 V DC working voltage, and delivers 7.5 V ESD clamping (TLP, 10 A, 100 ns) with 0.2 Ω dynamic resistance - enabling fast transient response while maintaining <1 µA leakage at 3.3 V reverse bias.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channels | 4 independent bidirectional ESD protection paths |
| VBR (Min) | 5 V - ensures reliable triggering above 3.3 V I/O rail without false activation |
| CI/O (Typ) | 0.55 pF - preserves signal integrity on >5 Gbps links (e.g., USB 3.0, HDMI 2.0) |
| IPP (Max) | 5.5 A (8/20 µs) - withstands lightning-induced surges per IEC 61000-4-5 Level 3 |
| VC @ 5.5 A | 8.2 V - limits downstream IC stress during surge events |
| ESD Rating | ±14 kV contact / ±16 kV air - exceeds IEC 61000-4-2 Level 4 immunity requirement |
Pinout & Package
Package: U-DFN2510-10 (2.5 mm × 1.0 mm, 0.5 mm pitch, 0.575 mm height), lead-free, halogen-free, 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., USB D+/D−, HDMI TMDS+) |
| 3, 8 | VSS (Ground) | Common cathode connection point for all four TVS diodes; requires low-inductance ground plane |
| 6, 7, 9, 10 | No Connection | Unbonded die pads - no internal connection; must remain floating or grounded per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional ESD Clamping | 7.5 V at 10 A TLP - protects AC-coupled and differential signals without polarity constraints |
| Low Dynamic Resistance | 0.2 Ω - minimizes voltage overshoot during fast transients (tP = 100 ns) |
| Ultra-Low Capacitance Matching | ΔCI/O = 0.04 pF max - ensures <0.5% skew between parallel channels in multi-lane interfaces |
| RoHS & Green Compliance | Lead-free, halogen-free (<900 ppm Br/Cl, <1000 ppm Sb), UL 94V-0 molding compound |
Applications
| USB 3.0 SuperSpeed Interface | HDMI 2.0 TMDS Channels |
|---|---|
|
Use Scenario: Protecting differential TX/RX pairs in host/device ports against ESD events during hot-plug insertion. IC Role / Device Role / Timing Role: Passive bidirectional clamping device placed immediately before connector, referenced to system ground. Use Value: 0.55 pF capacitance avoids signal rise-time degradation (<10 ps impact on 5 Gbps eye diagram), while 8.2 V clamping prevents damage to SerDes PHYs rated for 1.2 V core and 3.3 V I/O. |
Use Scenario: Shielding TMDS clock and data lanes from electrostatic discharge in consumer AV equipment and embedded displays. IC Role / Device Role / Timing Role: Four-channel TVS array with matched capacitance across all lanes to preserve differential timing skew. Use Value: ΔCI/O ≤ 0.04 pF ensures <0.3° phase mismatch at 3 GHz (HDMI 2.0 max pixel clock), preventing jitter-induced bit errors. |
| Serial ATA III (6 Gbps) | PCI Express® Gen 2 (5 GT/s) |
|
Use Scenario: Safeguarding SATA transmitter/receiver pins on motherboards and storage controllers against handling ESD. IC Role / Device Role / Timing Role: Low-capacitance shunt protector located at PCB edge, minimizing stub length to preserve 100 Ω differential impedance. Use Value: 0.2 Ω dynamic resistance limits clamping overshoot to <150 mV above VBR, avoiding false triggering of SATA link training sequences. |
Use Scenario: Hardening PCIe root complex and endpoint lanes in industrial computing modules against board-level ESD. IC Role / Device Role / Timing Role: Per-lane TVS protection with shared VSS reference to reduce ground bounce during multi-pin discharge events. Use Value: ±16 kV air discharge rating meets EN 55032 Class B immunity requirements for PCIe add-in cards operating in noisy factory environments. |
Availability
DT1240A-04LP is available at Aetrix Electronics and suitable for USB 3.0 interface protection, HDMI 2.0 display subsystems, and Serial ATA III storage controllers requiring stable component supply with full RoHS and green compliance.
Supply support for DT1240A-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.
The DT1240A-04LP belongs to Diodes' high-speed TVS diode array product line, engineered specifically for ESD-hardened high-bandwidth serial interfaces where sub-1 pF capacitance and nanosecond response are mandatory.
FAQ
What is the maximum operating temperature range for DT1240A-04LP?
The DT1240A-04LP is rated for operation from -55°C to +85°C ambient temperature. This range is validated per JEDEC JESD22-A104 and supports deployment in extended-temperature industrial and automotive cabin applications when paired with appropriate thermal design.
Can DT1240A-04LP be used for unidirectional protection?
No - the DT1240A-04LP is inherently bidirectional due to its symmetrical TVS structure between each I/O pin and VSS. It provides equal clamping for positive and negative transients and is not configurable for unidirectional operation.
Is the U-DFN2510-10 package compatible with standard reflow profiles?
Yes - the U-DFN2510-10 package is qualified for IPC/JEDEC J-STD-020 moisture sensitivity level 1 and supports standard lead-free reflow profiles (peak 260°C, 60 seconds max). Recommended pad layout dimensions are published in Diodes' package outline document #AP02009.
Does DT1240A-04LP meet AEC-Q200 requirements?
No - the DT1240A-04LP is not AEC-Q200 qualified. Diodes offers automotive-grade variants (e.g., D3V3M4UQ) with AEC-Q200 certification; this part is intended for commercial and industrial applications only.
DT1240A-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):
- 5.5A (8/20µs)
- Power - Peak Pulse:
- 52W
- 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
DT1240A-04LP-7 FAQ
1.How can I place an order for DT1240A-04LP-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DT1240A-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 DT1240A-04LP-7 reliable?
The price and inventory of DT1240A-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 DT1240A-04LP-7 is usually 5 days.
3.What payment methods are accepted for DT1240A-04LP-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DT1240A-04LP-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DT1240A-04LP-7?
DT1240A-04LP-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DT1240A-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 DT1240A-04LP-7?
For technical support, including DT1240A-04LP-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DT1240A-04LP-7 requirements.
6.How does Aetrix verify that DT1240A-04LP-7 is sourced from the original manufacturer or authorized distributors?
All DT1240A-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 DT1240A-04LP-7 meets industry standards.
7.What is the process for return or replacement of DT1240A-04LP-7?
All DT1240A-04LP-7 units undergo pre-shipment inspection (PSI). If there is an issue with DT1240A-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 DT1240A-04LP-7 part is unused and in its original packaging.
Return procedure for DT1240A-04LP-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DT1240A-04LP-7 Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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onsemi
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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ESD5Z5.0T1G
onsemi
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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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