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Diodes Incorporated DT2042-04SOQ-7
- Part No.:
- DT2042-04SOQ-7
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- SOT-23-6
- Datasheet:
-
DT2042-04SOQ-7.pdf
- Description:
- DATALINE PROTECTION PP SOT26 T&R
- Quantity:
- Payment:
- Shipping:
Inventory:5,939
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Product details
Overview
DT2042-04SOQ from Diodes Incorporated is a 4-channel low-capacitance TVS diode array designed for high-speed data line ESD protection. It delivers ±30kV IEC 61000-4-2 contact/air ESD immunity, 1.2pF typical channel capacitance, 9V clamping at 10A (8/20μs), and AEC-Q101 qualification for automotive interfaces including USB 2.0, LVDS, and Ethernet 10/100/1000BASE-T.
For engineers reviewing the DT2042-04SOQ datasheet, DT2042-04SOQ pinout, DT2042-04SOQ application, or DT2042-04SOQ equivalent, key selection criteria include clamping voltage under IEC 61000-4-5 lightning surge, dynamic resistance for fast transient response, channel-to-ground topology, thermal derating above 25°C, and SOT26 footprint compatibility with high-density PCB layouts.
Technical Context
The DT2042-04SOQ integrates four independent bidirectional TVS diodes in a single SOT26 package, each configured as a grounded-anode/cathode pair between I/O pins and VSS. Its low 0.25Ω TLP dynamic resistance ensures minimal voltage overshoot during sub-100ns ESD events.
It operates with a 5.5V DC working voltage and 6–9V breakdown range, enabling robust protection of 3.3V/5V logic interfaces without false triggering. The device meets IEC 61000-4-4 (60A EFT) and IEC 61000-4-5 (±10A lightning) standards with defined 8/20μs pulse handling and thermal derating curves up to +150°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ESD Rating (IEC 61000-4-2) | ±30kV contact & air – guarantees immunity to worst-case human-body ESD events on exposed ports |
| Clamping Voltage (10A, 8/20μs) | 9V max – limits transient overvoltage below IC damage threshold for 3.3V/5V interface rails |
| Channel Capacitance | 1.2pF typical – preserves signal integrity on USB 2.0 (480Mbps) and 1000BASE-T (1Gbps) links |
| Dynamic Resistance (TLP) | 0.25Ω – reduces voltage overshoot during fast-rising ESD pulses (<1ns rise time) |
| Working Voltage (VRWM) | 5.5V – supports full swing of 5V-tolerant I/O while blocking normal operating voltages |
| Breakdown Voltage (VBR) | 6–9V at 1mA – ensures reliable turn-on before downstream IC damage thresholds are exceeded |
| AEC-Q101 Qualified | Validated for automotive use – includes PPAP capability and IATF 16949 manufacturing compliance |
Pinout & Package
Package: SOT26 - 6-pin, surface-mount plastic package with matte tin-plated copper leadframe; moisture sensitivity level 1 per J-STD-020; weight 0.016g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (I/O 1) | Protected Data Line Channel 1 | Bidirectional ESD path to VSS; connects to first high-speed signal (e.g., USB D+) |
| 2 (I/O 2) | Protected Data Line Channel 2 | Bidirectional ESD path to VSS; connects to second signal (e.g., USB D−) |
| 3 (VSS) | Common Ground Reference | Low-inductance return path for all four TVS channels; must be connected to clean system ground |
| 4 (I/O 3) | Protected Data Line Channel 3 | Bidirectional ESD path to VSS; used for auxiliary lines (e.g., SIM CLK or LVDS+) |
| 5 (I/O 4) | Protected Data Line Channel 4 | Bidirectional ESD path to VSS; used for fourth signal (e.g., SIM DATA or LVDS−) |
| 6 (NC) | No Connect | Internally unconnected; left floating or omitted in PCB layout to avoid parasitic coupling |
Key Features
| Feature | Design Value |
|---|---|
| Low Clamping Voltage | 9V at 10A (8/20μs) – keeps protected ICs within safe SOA during lightning surges |
| Ultra-Low Input Capacitance | 1.2pF per channel – avoids signal rise-time degradation and bit-error-rate increase on 480Mbps+ links |
| High ESD Withstand | ±30kV IEC 61000-4-2 – exceeds industrial and automotive ESD immunity requirements without external shielding |
| AEC-Q101 Qualification | Validated for automotive electronics – includes temperature cycling, HTRB, and ESD stress testing per AEC standard |
| SOT26 Footprint Compatibility | Standardized 3.0×2.8mm outline – enables drop-in replacement in space-constrained designs using existing reflow profiles |
Applications
| USB 2.0 Interface Protection | Ethernet 10/100/1000BASE-T |
|---|---|
|
Use Scenario: Protecting USB host/device connectors against repeated ESD events in consumer and automotive infotainment systems. IC Role / Device Role / Timing Role: Bidirectional transient voltage suppressor placed directly at connector, shunting ESD current to chassis ground before reaching PHY IC. Use Value: Maintains 480Mbps signal fidelity with <1.2pF loading while surviving >10,000 ±30kV contact discharges per IEC spec. |
Use Scenario: Safeguarding Ethernet PHY differential pairs (TX+/−, RX+/−) in industrial gateways and vehicle telematics modules. IC Role / Device Role / Timing Role: Four-channel TVS array protecting two differential lanes, each pair sharing common-mode clamp to VSS. Use Value: Enables compliance with IEC 61000-4-5 ±10A lightning surge test without degrading 100MHz differential impedance or jitter budget. |
| LVDS Display Interfaces | SIM Card Port Protection |
|
Use Scenario: Shielding flat-panel display timing signals (e.g., clock, data lanes) in automotive instrument clusters and ADAS displays. IC Role / Device Role / Timing Role: Low-capacitance ESD clamp on each LVDS pair, minimizing skew between complementary signals. Use Value: Prevents pixel corruption or frame loss during hot-plug ESD events while preserving <10ps inter-pair skew tolerance. |
Use Scenario: Securing 3V/1.8V SIM card interface lines (CLK, DATA, RST, VCC) in mobile hotspots and telematics control units. IC Role / Device Role / Timing Role: Dedicated channel per signal line with 5.5V VRWM to avoid leakage on powered SIM VCC rail. Use Value: Eliminates SIM detection failures caused by ±30kV ESD-induced latch-up or oxide rupture in baseband processors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode array applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SP1006-04UTG (Littelfuse) | 1.0pF capacitance, 7.5V clamping at 10A, SOT23-6 package | Lower clamping but tighter 1.0pF capacitance; less robust for 1000BASE-T due to lower PPP (85W vs. 105W) | Prefer when ultra-low capacitance is critical and surge current ≤8A suffices |
| SMA6J5.0A-Q (ON Semiconductor) | Single-channel, 5.0V VRWM, DO-214AC package, 12pF capacitance | Higher capacitance and discrete layout increases board area; lacks multi-channel integration and AEC-Q101 auto rating | Only suitable for cost-sensitive non-automotive designs where space and channel count are secondary |
Compared with SP1006-04UTG and SMA6J5.0A-Q, the DT2042-04SOQ uniquely balances 1.2pF capacitance, 105W surge power, AEC-Q101 qualification, and integrated 4-channel SOT26 packaging-making it optimal for space-constrained automotive Ethernet and USB applications requiring validated reliability.
Availability
DT2042-04SOQ is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial Ethernet gateways, and high-speed display interfaces requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for DT2042-04SOQ 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 automotive, industrial, and computing markets.
The DT2042-04SOQ belongs to Diodes' Automotive-Grade TVS Diode Array product line, engineered specifically to meet stringent ESD, surge, and thermal requirements of modern vehicle communication buses and high-speed data interfaces.
FAQ
What is the maximum peak pulse power rating of the DT2042-04SOQ?
The DT2042-04SOQ has a peak pulse power rating of 105W per channel under IEC 61000-4-5 8/20μs waveform conditions. This value is measured between any I/O pin and VSS at TA = +25°C and derates linearly above that ambient temperature per Figure 1 in the datasheet.
Does the NC pin (Pin 6) require PCB connection or grounding?
No, Pin 6 is internally unconnected and must remain floating on the PCB. Connecting it to ground or any other net may introduce parasitic coupling or reduce ESD performance. The recommended layout follows Diodes' SOT26 pad dimensions with no metal under Pin 6.
How does the DT2042-04SOQ perform under high-temperature operating conditions?
The device maintains full functionality from −55°C to +150°C junction temperature. Electrical parameters such as clamping voltage and leakage current shift within specified limits across this range, and thermal resistance (RθJA = 417°C/W) assumes standard FR-4 PCB mounting with 2oz copper pads per Diodes' suggested layout.
Is the DT2042-04SOQ compatible with lead-free reflow soldering processes?
Yes, the DT2042-04SOQ uses matte tin-plated copper leadframe and complies with JEDEC J-STD-020 moisture sensitivity level 1. It supports standard lead-free reflow profiles up to 260°C peak temperature, with no pre-bake required prior to assembly.
DT2042-04SOQ-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- SOT-23-6
- 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:
- 10.5V
- Current - Peak Pulse (10/1000µs):
- 10A (8/20µs)
- Power - Peak Pulse:
- 105W
- Power Line Protection:
- Yes
- Applications:
- Ethernet, USB
- Capacitance @ Frequency:
- 1.2pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-26
DT2042-04SOQ-7 FAQ
1.How can I place an order for DT2042-04SOQ-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DT2042-04SOQ-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 DT2042-04SOQ-7 reliable?
The price and inventory of DT2042-04SOQ-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DT2042-04SOQ-7 is usually 5 days.
3.What payment methods are accepted for DT2042-04SOQ-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DT2042-04SOQ-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DT2042-04SOQ-7?
DT2042-04SOQ-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DT2042-04SOQ-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 DT2042-04SOQ-7?
For technical support, including DT2042-04SOQ-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DT2042-04SOQ-7 requirements.
6.How does Aetrix verify that DT2042-04SOQ-7 is sourced from the original manufacturer or authorized distributors?
All DT2042-04SOQ-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 DT2042-04SOQ-7 meets industry standards.
7.What is the process for return or replacement of DT2042-04SOQ-7?
All DT2042-04SOQ-7 units undergo pre-shipment inspection (PSI). If there is an issue with DT2042-04SOQ-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 DT2042-04SOQ-7 part is unused and in its original packaging.
Return procedure for DT2042-04SOQ-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DT2042-04SOQ-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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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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