My Inquiry
My Account
Diodes Incorporated DESD15VS2UTQ-7
- Part No.:
- DESD15VS2UTQ-7
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
DESD15VS2UTQ-7.pdf
- Description:
- GENERAL PROTECTION PP SOT23 T&R
- Quantity:
- Payment:
- Shipping:
Inventory:6,452
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DESD15VS2UTQ-7 from Diodes Incorporated is a 2-channel unidirectional TVS diode designed for ESD protection of high-speed data lines. It features a 15 V reverse standoff voltage, 17.6–20.4 V breakdown range, 30 V clamping voltage at 5 A peak pulse current, and 40 pF typical channel capacitance. It is AEC-Q101 qualified and used in HDMI™ and USB interfaces.
For engineers reviewing the DESD15VS2UTQ-7 datasheet, DESD15VS2UTQ-7 pinout, DESD15VS2UTQ-7 application, or DESD15VS2UTQ-7 equivalent, key selection criteria include IEC 61000-4-2 ±30 kV contact/air ESD rating, low 40 pF input capacitance for signal integrity, SOT23 package compatibility, and automotive-grade qualification for infotainment and ADAS interface protection.
Technical Context
This TVS device uses silicon avalanche diode technology to clamp transient overvoltages before they reach downstream ICs. Its unidirectional configuration protects against negative-going surges only, requiring proper polarity alignment with the protected line's DC bias.
The 40 pF junction capacitance (measured at 0 V, 1 MHz) enables use on 480 Mbps USB 2.0 and 1.65 Gbps HDMI 1.4 differential pairs without significant signal degradation. Thermal derating follows a linear curve down to zero power at +150°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage (VRWM) | 15 V - Maximum continuous DC or RMS voltage the device blocks without clamping. |
| Breakdown Voltage (VBR) | 17.6–20.4 V @ 5 mA - Confirmed avalanche conduction onset, ensuring reliable triggering before IC damage thresholds. |
| Clamping Voltage (VC) | 30 V @ 5 A (8/20 μs) - Peak voltage seen by protected circuit during worst-case surge, below typical 3.3 V/5 V IC absolute maximum ratings. |
| ESD Rating | ±30 kV air & contact discharge per IEC 61000-4-2 - Meets highest system-level ESD immunity requirement for consumer and automotive ports. |
| Channel Capacitance (CT) | 40 pF @ 0 V, 1 MHz - Low enough to avoid signal rise-time degradation on USB 2.0 and HDMI 1.4 differential lanes. |
| Package | SOT23 - Standard 3-pin surface-mount footprint compatible with automated assembly and space-constrained PCB layouts. |
Pinout & Package
Supplied in the industry-standard SOT23 package (2.90 mm × 1.30 mm × 1.03 mm), this dual-channel TVS uses a common cathode configuration across two independent ESD protection paths.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode Channel 1 | Input terminal for first protected signal line (e.g., USB D+). |
| Pin 2 | Cathode (Common) | Shared cathode connection tied to system ground or local reference plane. |
| Pin 3 | Anode Channel 2 | Input terminal for second protected signal line (e.g., USB D−). |
Key Features
| Feature | Design Value |
|---|---|
| IEC 61000-4-2 ESD robustness | ±30 kV contact & air - Eliminates need for secondary board-level ESD mitigation in portable designs. |
| Low channel capacitance | 40 pF - Preserves signal edge rate and eye diagram integrity on 480 Mbps USB 2.0 links. |
| AEC-Q101 qualification | Qualified for automotive applications - Enables use in infotainment head units and camera module interfaces without requalification. |
| Green, halogen-free construction | <900 ppm Br, <900 ppm Cl, <1000 ppm Sb - Complies with automotive OEM material declarations and EU environmental directives. |
Applications
| USB 2.0 Interface Protection | HDMI 1.4 Differential Pair Protection |
|---|---|
Use Scenario: Protecting host/device USB ports against repeated plug/unplug ESD events in handheld and automotive docking systems. IC Role / Device Role / Timing Role: Unidirectional TVS placed directly at connector, shunting ESD transients to ground before reaching USB transceiver PHY. Use Value: 40 pF capacitance avoids >10% rise-time degradation on 480 Mbps signals; ±30 kV rating exceeds IEC 61000-4-2 Level 4 requirement. | Use Scenario: Safeguarding HDMI source/sink connectors in automotive display modules and set-top boxes exposed to user-handling ESD. IC Role / Device Role / Timing Role: Dual-channel TVS applied across TMDS data pairs (D0+/D0−, D1+/D1−, etc.), with common cathode grounded. Use Value: 30 V clamping ensures protected SoC I/O stays within 3.3 V absolute max rating; SOT23 footprint fits tight connector keep-out zones. |
| LVDS Camera Interface Protection | Automotive Infotainment USB Hub Protection |
Use Scenario: Shielding rear-view camera LVDS links from cable-discharge events in vehicle harnesses. IC Role / Device Role / Timing Role: Two independent TVS channels guarding differential LVDS pairs, preserving common-mode noise rejection. Use Value: 15 V VRWM aligns with typical 1.8 V or 3.3 V LVDS supply rails; low leakage (<0.5 µA) prevents DC bias shift. | Use Scenario: Hardening USB hub ICs in automotive head units against ESD injected via front-panel ports. IC Role / Device Role / Timing Role: One DESD15VS2UTQ-7 per USB port pair (D+/D−), mounted adjacent to connector with short trace routing. Use Value: AEC-Q101 qualification supports PPAP submission; 250 mW power dissipation accommodates sustained thermal loads in sealed enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ15A | Single-channel, SMA package, 15 V VBR, 33.3 V VC @ 5.1 A, 100 pF | Larger footprint, higher capacitance - unsuitable for USB/HDMI; better for lower-speed industrial I/O. | Select when board space allows larger package and signal bandwidth <100 Mbps. |
| TPD2E001DRYR | 2-channel, SOT-553, 5 V VRWM, 12 V VC @ 2 A, 12 pF | Lower standoff voltage - requires 3.3 V rail; optimized for mobile phone I/O, not automotive. | Choose only for non-automotive, low-voltage (≤3.3 V) high-speed interfaces where <15 pF is mandatory. |
Compared with SMAJ15A and TPD2E001DRYR, DESD15VS2UTQ-7 uniquely balances automotive qualification, 15 V standoff, 40 pF capacitance, and SOT23 size-making it optimal for USB/HDMI protection in temperature-stressed automotive environments where both reliability and signal fidelity are critical.
Availability
DESD15VS2UTQ-7 is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial USB peripherals, and consumer HDMI accessories requiring stable component supply and long-term lifecycle support.
Supply support for DESD15VS2UTQ-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 DESDxxVS2UTQ series belongs to Diodes' high-reliability TVS portfolio, engineered specifically for ESD protection of high-speed serial interfaces in automotive, computing, and consumer electronics where compact size and certified robustness are mandatory.
FAQ
What is the maximum operating temperature for DESD15VS2UTQ-7?
The device operates from −55°C to +150°C ambient temperature. Its thermal resistance (RθJA) is 330°C/W on a standard 2 oz copper MRP PCB layout, and power derating begins linearly above +25°C, reaching zero dissipation at +150°C per Figure 1 in DS45484 Rev. 2–2.
Is DESD15VS2UTQ-7 suitable for bidirectional signal lines like RS-485?
No - it is unidirectional and protects only negative-going transients relative to ground. For bidirectional lines such as RS-485, a bidirectional TVS (e.g., DESD15VD2UTQ-7) or back-to-back diode configuration is required to clamp both polarities.
How does the 40 pF capacitance affect USB 2.0 signal integrity?
At 480 Mbps, 40 pF introduces <5% rise-time increase and negligible jitter on properly terminated 90 Ω differential traces. Measurement data in Figure 4 of DS45484 confirms stable capacitance below 45 pF up to 5 V reverse bias, preserving eye opening per USB-IF compliance testing.
Does DESD15VS2UTQ-7 require external current-limiting resistors?
No - it is designed for direct placement at the connector with no series impedance. The 30 V clamping voltage at 5 A ensures protected ICs remain within safe operating area without additional current limiting, provided PCB layout minimizes inductance between TVS and ground plane.
DESD15VS2UTQ-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):
- 15V
- Voltage - Breakdown (Min):
- 17.6V
- Voltage - Clamping (Max) @ Ipp:
- 30V
- Current - Peak Pulse (10/1000µs):
- 5A
- 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
DESD15VS2UTQ-7 FAQ
1.How can I place an order for DESD15VS2UTQ-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DESD15VS2UTQ-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 DESD15VS2UTQ-7 reliable?
The price and inventory of DESD15VS2UTQ-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DESD15VS2UTQ-7 is usually 5 days.
3.What payment methods are accepted for DESD15VS2UTQ-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DESD15VS2UTQ-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DESD15VS2UTQ-7?
DESD15VS2UTQ-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DESD15VS2UTQ-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 DESD15VS2UTQ-7?
For technical support, including DESD15VS2UTQ-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DESD15VS2UTQ-7 requirements.
6.How does Aetrix verify that DESD15VS2UTQ-7 is sourced from the original manufacturer or authorized distributors?
All DESD15VS2UTQ-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 DESD15VS2UTQ-7 meets industry standards.
7.What is the process for return or replacement of DESD15VS2UTQ-7?
All DESD15VS2UTQ-7 units undergo pre-shipment inspection (PSI). If there is an issue with DESD15VS2UTQ-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 DESD15VS2UTQ-7 part is unused and in its original packaging.
Return procedure for DESD15VS2UTQ-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DESD15VS2UTQ-7 Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
Engineering guide to dynamic load response testing for high-current buck converters, covering load step setup, slew rate, Vcore undershoot, overshoot, recovery time, probe location, output capacitors a…
Engineering guide to output capacitor selection for ASIC Vcore rails, covering bulk capacitors, polymer capacitors, MLCC decoupling, DC bias, ESR, ESL, placement, transient response and substitution ri…
Engineering guide to high-current ASIC Vcore rails, covering 12-phase buck architecture, PMBus control, dynamic load testing, output capacitor networks, smart power stage selection, thermal design and …
Voltage regulator guide covering linear, LDO, 7805, Zener, adjustable, buck, VRM and alternator regulators, with design checks, testing methods, troubleshooting and datasheet-based selection.
Amplifier guide covering voltage, current and power amplification, gain, feedback, amplifier classes, audio and RF applications, op-amp circuits, transimpedance amplifiers, datasheet selection and trou…
