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Diodes Incorporated DT1140-04LPQ-7
- Part No.:
- DT1140-04LPQ-7
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- 10-UFDFN
- Datasheet:
-
DT1140-04LPQ-7.pdf
- Description:
- DATALINE PROTECTION PP U-DFN2510
- Quantity:
- Payment:
- Shipping:
Inventory:2,781
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Product details
Overview
DT1140-04LPQ from Diodes Incorporated is a 4-channel low-capacitance TVS diode array designed for high-speed data line ESD protection. It delivers 0.5 pF typical channel capacitance, 9 V clamping voltage at 10 A (100 ns TLP), ±20 kV IEC 61000-4-2 contact ESD rating, and AEC-Q101 qualification for automotive use in USB 2.0 and HDMI interfaces.
For engineers reviewing the DT1140-04LPQ datasheet, DT1140-04LPQ pinout, DT1140-04LPQ application, or DT1140-04LPQ equivalent, key selection criteria include channel input capacitance (0.5 pF), clamping performance under 6 A IEC 61000-4-5 surge, dynamic resistance (0.25 Ω), reverse working voltage (5.5 V), and U-DFN2510-10 package compatibility with high-density PCB layouts.
Technical Context
The DT1140-04LPQ integrates four independent bidirectional TVS diodes in a single U-DFN2510-10 package, each configured between I/O pins and VSS to suppress transient overvoltages on high-speed signal lines. Its low 0.5 pF capacitance minimizes signal integrity degradation, while its 0.25 Ω dynamic resistance ensures rapid energy dissipation during ESD events.
It operates within -55°C to +85°C ambient range and supports IEC 61000-4-2 (±20 kV air/±16 kV contact), IEC 61000-4-5 (±6 A, 8/20 µs), and AEC-Q101 stress testing. The device uses NiPdAu-plated copper leadframe and is halogen/antimony-free per Diodes' "Green" definition.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channel Count | 4 independent bidirectional ESD protection channels |
| Input Capacitance | 0.5 pF typical per channel - preserves signal integrity on USB 2.0/HDMI links |
| Clamping Voltage | 9 V at 6 A (8/20 µs) - limits transient voltage to safe levels for downstream ICs |
| ESD Rating | ±20 kV air / ±16 kV contact per IEC 61000-4-2 - exceeds industrial and automotive immunity requirements |
| Reverse Working Voltage | 5.5 V - compatible with 3.3 V and 5 V logic signaling rails |
| Dynamic Resistance | 0.25 Ω - enables fast response and low-voltage overshoot during TLP pulses |
| Package | U-DFN2510-10 (2.5 mm × 1.0 mm, 0.5 mm pitch) - supports fine-pitch, space-constrained routing |
Pinout & Package
Package: U-DFN2510-10 - ultra-thin, leadless, 10-terminal DFN with exposed thermal pad (not electrically connected), moisture sensitivity level 1, RoHS-compliant NiPdAu plating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 4, 5 | I/O Channel Terminals | Each connects to one protected high-speed signal line (e.g., USB D+, D−, HDMI TMDS+) |
| 3, 8 | VSS | Common cathode connection to system ground - must be low-inductance path for effective clamping |
| 6, 7, 9, 10 | No Connection | Unbonded terminals - no internal connection; must remain unconnected on PCB |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 Qualified | Validated for automotive applications including infotainment and ADAS interfaces requiring PPAP and IATF 16949 manufacturing control |
| 0.5 pF Channel Capacitance | Enables <1% signal attenuation at 480 MHz (USB 2.0 full-speed), preserving eye diagram integrity |
| 9 V Clamping at 10 A (TLP) | Ensures downstream PHY ICs see sub-10 V transients during worst-case ESD strikes |
| 0.25 Ω Dynamic Resistance | Reduces clamping voltage overshoot by >30% vs. higher-RDYN arrays under identical TLP conditions |
| Halogen/Antimony-Free "Green" | Meets <900 ppm Br, <900 ppm Cl, <1000 ppm Sb - compliant with automotive OEM environmental specifications |
Applications
| USB 2.0 Interface Protection | HDMI TMDS Line Protection |
|---|---|
Use Scenario: Protecting upstream/downstream USB 2.0 ports in automotive head units against ESD from hot-plug insertion and user contact. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed directly at connector, shunting transients from D+/D− to chassis ground before reaching USB transceiver. Use Value: 0.5 pF capacitance avoids signal rise-time degradation; 9 V clamping prevents PHY latch-up or damage during ±15 kV contact discharge. | Use Scenario: Safeguarding HDMI source/sink TMDS differential pairs in infotainment displays against cable-borne ESD and lightning-induced surges. IC Role / Device Role / Timing Role: Four-channel array protects all three TMDS pairs plus CEC line, referenced to common VSS plane adjacent to HDMI connector. Use Value: 6 A IEC 61000-4-5 surge rating handles induced surges on long cables; low capacitance maintains >1.65 Gbps data rate compliance. |
| Ethernet PHY Port Protection | PCIe Gen1/Gen2 Lane Protection |
Use Scenario: Shielding 10/100/1000BASE-T Ethernet PHY differential pairs in telematics gateways from ESD and EFT events. IC Role / Device Role / Timing Role: Placed at RJ45 magnetics secondary side, clamping common-mode transients between MDI lines and system ground. Use Value: Symmetrical clamping and 0.5 pF ensure minimal skew between pair members; ±20 kV ESD rating exceeds EN 61000-4-2 Level 4. | Use Scenario: Protecting PCIe Gen1/Gen2 x1 or x4 lanes in ADAS domain controllers from board-level ESD during handling and operation. IC Role / Device Role / Timing Role: One DT1140-04LPQ per x4 link (or two per x8) placed at edge connector, clamping each lane independently to shared VSS. Use Value: 9 V clamping at 10 A TLP prevents receiver input overstress; U-DFN2510-10 footprint allows placement within 3 mm of connector without trace stubs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SP3222-04UTG | 0.35 pF typical capacitance; 12 V clamping at 6 A (8/20 µs); non-automotive grade | Lacks AEC-Q101 qualification and IATF 16949 manufacturing; rated for commercial temp only (–40°C to +85°C) | Select when lower capacitance is critical and automotive qualification is not required |
| SZ1.5SMC12A | Single-channel, 12 V standoff, 1500 W peak power; DO-214AB package; 100 pF capacitance | Not suitable for high-speed data lines due to excessive capacitance; intended for power rail or low-frequency signal protection | Use only for DC power line or low-bandwidth analog signal protection - not a functional substitute |
Compared with SP3222-04UTG, DT1140-04LPQ offers tighter clamping (9 V vs. 12 V) and automotive qualification but slightly higher capacitance (0.5 pF vs. 0.35 pF); compared with SZ1.5SMC12A, it provides true high-speed capability via ultra-low capacitance and multi-channel integration, whereas the latter is incompatible with data rates above ~10 Mbps.
Availability
DT1140-04LPQ is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial HDMI video interfaces, and high-reliability USB 2.0 peripheral designs requiring stable component supply across extended product lifecycles.
Supply support for DT1140-04LPQ 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-performance protection, signal integrity, and power management solutions for automotive, industrial, and consumer markets.
The DT1140-04LPQ belongs to Diodes' Automotive-Grade TVS Diode Array product line, engineered specifically to meet stringent ESD robustness, thermal stability, and process control requirements of modern vehicle electronics.
FAQ
What is the maximum operating temperature range for DT1140-04LPQ?
The DT1140-04LPQ is rated for continuous operation from –55°C to +85°C ambient temperature. This range is validated per AEC-Q101 stress testing and supported by thermal derating curves in the datasheet, ensuring reliable clamping performance across automotive cabin and engine bay environments.
Can DT1140-04LPQ be used on 5 V logic lines?
Yes - its 5.5 V reverse working voltage (VRWM) and 6.4 V reverse clamping voltage at 1 A make it fully compatible with 5 V tolerant I/O structures. It will not conduct during normal 5 V operation and activates only during transients exceeding ~9.5 V trigger voltage.
Is the U-DFN2510-10 package thermally enhanced?
No - the U-DFN2510-10 package has no exposed thermal pad. Thermal resistance is specified as 360°C/W (junction-to-ambient) on standard FR-4 with 2 oz copper, and heat dissipation relies on PCB copper area connected to VSS pins 3 and 8.
Does DT1140-04LPQ require external biasing or control signals?
No - it is a passive, bidirectional TVS array with no control inputs, bias pins, or enable functions. It operates automatically based on voltage threshold; connection requires only I/O lines to pins 1/2/4/5 and VSS to pins 3/8.
DT1140-04LPQ-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):
- 5.5V (Max)
- Voltage - Breakdown (Min):
- 6V
- Voltage - Clamping (Max) @ Ipp:
- 10V
- Current - Peak Pulse (10/1000µs):
- 6A (8/20µs)
- Power - Peak Pulse:
- 60W
- Power Line Protection:
- No
- Applications:
- Ethernet, HDMI, USB
- Capacitance @ Frequency:
- 0.5pF @ 1MHz
- Operating Temperature:
- -55°C ~ 85°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- U-DFN2510-10
DT1140-04LPQ-7 FAQ
1.How can I place an order for DT1140-04LPQ-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DT1140-04LPQ-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 DT1140-04LPQ-7 reliable?
The price and inventory of DT1140-04LPQ-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DT1140-04LPQ-7 is usually 5 days.
3.What payment methods are accepted for DT1140-04LPQ-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DT1140-04LPQ-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DT1140-04LPQ-7?
DT1140-04LPQ-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DT1140-04LPQ-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 DT1140-04LPQ-7?
For technical support, including DT1140-04LPQ-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DT1140-04LPQ-7 requirements.
6.How does Aetrix verify that DT1140-04LPQ-7 is sourced from the original manufacturer or authorized distributors?
All DT1140-04LPQ-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 DT1140-04LPQ-7 meets industry standards.
7.What is the process for return or replacement of DT1140-04LPQ-7?
All DT1140-04LPQ-7 units undergo pre-shipment inspection (PSI). If there is an issue with DT1140-04LPQ-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 DT1140-04LPQ-7 part is unused and in its original packaging.
Return procedure for DT1140-04LPQ-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DT1140-04LPQ-7 Tags
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ESD9B5.0ST5G
onsemi
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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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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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