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Diodes Incorporated DESD5V2S2UTQ-7
- Part No.:
- DESD5V2S2UTQ-7
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
DESD5V2S2UTQ-7.pdf
- Description:
- GENERAL PROTECTION PP SOT23 T&R
- Quantity:
- Payment:
- Shipping:
Inventory:6,034
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Product details
Overview
DESD5V2S2UTQ-7 from Diodes Incorporated is a 2-channel unidirectional TVS diode designed for ESD protection of high-speed data lines. It features a 5.0 V reverse standoff voltage, 6.4 V minimum breakdown voltage, 14 V max clamping voltage at 18 A peak pulse current, and 130 pF typical channel input capacitance - optimized for USB and HDMI interfaces in portable electronics.
For engineers reviewing the DESD5V2S2UTQ-7 datasheet, DESD5V2S2UTQ-7 pinout, DESD5V2S2UTQ-7 application, or DESD5V2S2UTQ-7 equivalent, key selection criteria include IEC 61000-4-2 ±30 kV contact/air ESD rating, low capacitance for signal integrity, AEC-Q101 qualification for automotive use, and SOT23 package compatibility with space-constrained PCB layouts.
Technical Context
This TVS device uses silicon avalanche diode technology to clamp transient overvoltages before they damage downstream ICs. Its unidirectional configuration provides asymmetric protection with low leakage (<1 µA at 5.0 V) and fast response time (<1 ns), enabling robust defense against ESD events without distorting high-frequency signals.
The dual-channel layout shares a common cathode in SOT23-3 packaging, supporting independent protection of two signal lines (e.g., D+ and D− in USB 2.0). Thermal design relies on 250 mW power dissipation capability and 330 °C/W junction-to-ambient thermal resistance under standard MRP PCB mounting conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage (VRWM) | 5.0 V - Maximum continuous operating voltage before conduction begins; ensures no interference with 5 V logic or USB signaling. |
| Breakdown Voltage (VBR min) | 6.4 V - Confirmed avalanche onset threshold at 5 mA test current; guarantees reliable triggering above normal operating range. |
| Clamping Voltage (VC) | 14 V at 18 A - Peak voltage seen by protected circuit during worst-case 8/20 µs surge; limits stress on connected transceivers. |
| Peak Pulse Current (IPP) | 18 A - Maximum non-destructive surge current per channel under standardized 8/20 µs waveform; meets IEC 61000-4-5 Level 3. |
| Channel Input Capacitance (CT) | 130 pF at 0 V - Measured at 1 MHz; balances ESD robustness and signal integrity for ≤480 Mbps USB 2.0 operation. |
| ESD Rating | ±30 kV contact / ±30 kV air per IEC 61000-4-2 - Full compliance with highest industrial ESD immunity class. |
| Operating Temperature | −55 °C to +150 °C - Enables deployment in under-hood automotive modules and industrial edge devices. |
Pinout & Package
Package: SOT23-3, surface-mount plastic package with matte tin-plated copper leadframe, moisture sensitivity level 1, and UL 94V-0 flammability rating. Weight: 0.001 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode Channel 1 | Input terminal for first protected signal line (e.g., USB D+); connects to trace requiring ESD suppression. |
| Pin 2 | Cathode (Common) | Shared cathode node tied to system ground plane; enables compact dual-channel layout with single return path. |
| Pin 3 | Anode Channel 2 | Input terminal for second protected signal line (e.g., USB D−); electrically isolated from Pin 1 until clamping event. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including infotainment and ADAS sensor interfaces with PPAP support. |
| IATF 16949 manufacturing | Produced in certified facilities ensuring consistent quality control, change management, and traceability for OEM supply chains. |
| Lead-free & Halogen-free | Complies with RoHS 3 (2015/863/EU) and Diodes' "Green" definition (<900 ppm Br/Cl, <1000 ppm Sb). |
| Low-profile SOT23 footprint | Enables placement adjacent to connectors on dense PCBs without interfering with mechanical enclosures or flex cables. |
Applications
| USB 2.0 Interface Protection | HDMI™ Data Line Protection |
|---|---|
Use Scenario: Protecting D+ and D− differential pairs in portable USB peripherals against user-handling ESD events. IC Role / Device Role: Dual-channel unidirectional TVS clamping transient energy before it reaches the USB transceiver IC. Use Value: Maintains 480 Mbps signal fidelity while surviving repeated ±30 kV contact discharges per IEC 61000-4-2. |
Use Scenario: Safeguarding TMDS clock and data channels in HDMI source devices such as set-top boxes and monitors. IC Role / Device Role: Low-capacitance transient suppressor placed directly at HDMI connector to minimize stub length. Use Value: Limits clamping voltage to 14 V during 18 A surges, preventing latch-up or damage to HDMI PHY drivers. |
| Automotive Infotainment Ports | LVDS Camera Interface Protection |
Use Scenario: ESD hardening of USB-C or micro-USB ports in vehicle head units exposed to dry-climate static discharge. IC Role / Device Role: AEC-Q101-qualified TVS providing system-level immunity in temperature-cycled environments. Use Value: Operates reliably from −40 °C to +105 °C ambient with no derating required up to 85 °C. |
Use Scenario: Shielding LVDS video links between ADAS cameras and domain controllers from cable-induced transients. IC Role / Device Role: Dual-channel protector placed at camera-side connector to absorb coupling noise from nearby power lines. Use Value: 130 pF capacitance avoids skew between differential pairs, preserving timing margins in 1–2 Gbps links. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ5.0A | Single-channel, SMA package (4.5 mm × 2.7 mm), 600 W PPP, 100 pF CT | Higher power handling but larger footprint; unsuitable for dual-line miniaturized designs | Prefer when protecting individual high-energy lines where board space permits larger packages. |
| TPD2E001DRYR | 2-channel, SOT-553 package, 5.5 V VRWM, 12 V VC @ 1 A, 12 pF CT | Lower capacitance ideal for USB 3.0/PCIe, but rated only for 1 A IPP - insufficient for IEC 61000-4-2 ±30 kV | Choose only for low-energy ESD zones or supplemental protection behind primary TVS stages. |
Compared with SMAJ5.0A and TPD2E001DRYR, DESD5V2S2UTQ-7 uniquely delivers dual-channel ±30 kV ESD protection in SOT23 with balanced 130 pF capacitance and 18 A surge capability - making it optimal for cost-sensitive, space-constrained USB/HDMI endpoints requiring full automotive qualification.
Availability
DESD5V2S2UTQ-7 is available at Aetrix Electronics and suitable for USB interface protection, HDMI port hardening, and automotive infotainment subsystems requiring stable component supply across production lifecycles.
Supply support for DESD5V2S2UTQ-7 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, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
The DESDxxVxS2UTQ series belongs to Diodes' ESD protection product line, engineered specifically for high-density, high-reliability data interface protection in portable and automotive electronics.
FAQ
What is the maximum clamping voltage of DESD5V2S2UTQ-7 during an ESD event?
The maximum clamping voltage is 14 V at 18 A peak pulse current under 8/20 µs waveform conditions, measured per IEC 61000-4-5 test methodology. This value ensures downstream transceivers experience limited overvoltage stress while maintaining functional integrity during ±30 kV contact discharge events.
Is DESD5V2S2UTQ-7 suitable for bidirectional signal lines like RS-485?
No - DESD5V2S2UTQ-7 is unidirectional and configured with a common cathode, making it appropriate only for single-polarity signal paths such as USB D+/D− or HDMI TMDS pairs referenced to ground. Bidirectional lines require symmetrical (bidirectional) TVS devices like DESD5V2SC2UTQ-7.
How does the 130 pF channel capacitance affect USB 2.0 signal integrity?
At 130 pF, the device introduces minimal loading on 90 Ω differential USB 2.0 traces, resulting in <0.5 dB insertion loss at 240 MHz and negligible rise-time degradation. This capacitance was validated in Diodes' reference layouts to maintain eye diagram compliance per USB-IF specifications.
Does DESD5V2S2UTQ-7 require external current-limiting resistors?
No - the device operates as a shunt protector and does not require series impedance. Its low dynamic resistance (<0.5 Ω during clamping) and fast response (<1 ns) enable direct placement between signal line and ground, provided PCB layout follows recommended pad dimensions and minimizes trace inductance.
DESD5V2S2UTQ-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Series:
- DESDxxVxS2UTQ
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 2
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5V
- Voltage - Breakdown (Min):
- 6.4V
- Voltage - Clamping (Max) @ Ipp:
- 14V
- Current - Peak Pulse (10/1000µs):
- 18A
- Power - Peak Pulse:
- 252W
- Power Line Protection:
- No
- Applications:
- HDMI, USB
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
DESD5V2S2UTQ-7 FAQ
1.How can I place an order for DESD5V2S2UTQ-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DESD5V2S2UTQ-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 DESD5V2S2UTQ-7 reliable?
The price and inventory of DESD5V2S2UTQ-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DESD5V2S2UTQ-7 is usually 5 days.
3.What payment methods are accepted for DESD5V2S2UTQ-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DESD5V2S2UTQ-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DESD5V2S2UTQ-7?
DESD5V2S2UTQ-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DESD5V2S2UTQ-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 DESD5V2S2UTQ-7?
For technical support, including DESD5V2S2UTQ-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DESD5V2S2UTQ-7 requirements.
6.How does Aetrix verify that DESD5V2S2UTQ-7 is sourced from the original manufacturer or authorized distributors?
All DESD5V2S2UTQ-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 DESD5V2S2UTQ-7 meets industry standards.
7.What is the process for return or replacement of DESD5V2S2UTQ-7?
All DESD5V2S2UTQ-7 units undergo pre-shipment inspection (PSI). If there is an issue with DESD5V2S2UTQ-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 DESD5V2S2UTQ-7 part is unused and in its original packaging.
Return procedure for DESD5V2S2UTQ-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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