My Inquiry
My Account
Diodes Incorporated DESD24VS2UTQ-7
- Part No.:
- DESD24VS2UTQ-7
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
DESD24VS2UTQ-7.pdf
- Description:
- GENERAL PROTECTION PP SOT23 T&R
- Quantity:
- Payment:
- Shipping:
Inventory:4,623
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DESD24VS2UTQ-7 from Diodes Incorporated is a 2-channel unidirectional TVS diode designed for ESD protection of high-speed data lines. It features a 24V reverse standoff voltage, 26.5–30.8V breakdown range, 45V clamping at 3A peak pulse current, and 30pF typical channel capacitance. It is AEC-Q101 qualified and used in automotive infotainment USB/HDMI interfaces.
For engineers reviewing the DESD24VS2UTQ-7 datasheet, DESD24VS2UTQ-7 pinout, DESD24VS2UTQ-7 application, or DESD24VS2UTQ-7 equivalent, key selection criteria include clamping voltage under 3A surge, low 30pF input capacitance for signal integrity, SOT23 package compatibility with high-density PCB layouts, and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This TVS device employs a planar silicon avalanche structure optimized for fast response to ±30kV IEC 61000-4-2 ESD events. Its unidirectional configuration provides robust protection for DC-biased signal lines such as USB D+/D− or HDMI TMDS pairs without interfering with normal signal swing.
The SOT23-3L package enables dual-channel integration in a footprint identical to a single discrete diode. Thermal design relies on 2oz copper pad layout per Diodes' MRP reference, supporting 250mW steady-state dissipation and derated pulse power up to 252W (8/20μs).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage (VRWM) | 24 V - Maximum continuous operating voltage before conduction begins; sets upper limit for protected line DC bias. |
| Breakdown Voltage (VBR) | 26.5–30.8 V @ 5 mA - Confirmed avalanche onset range; ensures reliable triggering above system operating voltage. |
| Clamping Voltage (VC) | 45 V @ 3 A - Peak voltage seen by protected IC during worst-case 8/20μs surge; directly limits stress on downstream transceivers. |
| Peak Pulse Current (IPP) | 3 A - Maximum non-destructive surge current capability under standard 8/20μs waveform. |
| Channel Capacitance (CT) | 30 pF @ 0 V - Measured at 1 MHz; low enough to avoid signal degradation on USB 2.0 or HDMI 1.4 differential pairs. |
| ESD Rating | ±30 kV air/contact - Complies with IEC 61000-4-2 Level 4; eliminates need for external ESD test margining. |
| Package | SOT23-3L - Surface-mount, 3-pin, 2.9 mm × 1.3 mm footprint; supports automated placement and reflow. |
Pinout & Package
Package: SOT23-3L, molded plastic with matte tin over copper leadframe, moisture sensitivity level 1, weight ≈ 0.001 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode of Channel 1 | Connected to protected signal line (e.g., USB D+); conducts to ground during positive ESD event. |
| Pin 2 | Cathode (Common Ground) | Shared cathode node tied to system ground plane; provides return path for both channels. |
| Pin 3 | Anode of Channel 2 | Connected to second protected signal line (e.g., USB D−); symmetric protection with Pin 1. |
Key Features
| Feature | Design Value |
|---|---|
| IEC 61000-4-2 ESD immunity | ±30 kV contact/air - Eliminates need for secondary board-level ESD mitigation in certified automotive modules. |
| Dual-channel unidirectional topology | Single SOT23-3L package protects two independent signal lines - Reduces BOM count and PCB area vs. discrete diodes. |
| Low 30 pF channel capacitance | Preserves signal rise/fall times on 480 Mbps USB 2.0 links - Avoids eye diagram closure or jitter accumulation. |
| AEC-Q101 qualification | Validated for automotive temperature range (−55°C to +150°C) and mechanical stress - Enables use in instrument clusters and ADAS camera links. |
Applications
| USB 2.0 Interface Protection | HDMI 1.4 TMDS Line Protection |
|---|---|
Use Scenario: Protecting USB 2.0 D+/D− lines in automotive infotainment head units exposed to repeated hot-plug and cable discharge events. IC Role / Device Role / Timing Role: Transient voltage suppressor placed between connector and USB transceiver IC; clamps ESD pulses within 1 ns. Use Value: Prevents latch-up or gate oxide damage in USB PHY while maintaining <1% signal attenuation at 480 MHz. | Use Scenario: Shielding HDMI 1.4 TMDS clock and data pairs in rear-seat entertainment systems against assembly-line ESD and user-handling surges. IC Role / Device Role / Timing Role: Unidirectional TVS on each differential pair; grounded cathode minimizes common-mode noise injection. Use Value: Maintains 100 Ω differential impedance and keeps insertion loss <0.5 dB up to 225 MHz. |
| Automotive Camera Link Protection | Industrial LVDS Display Interface |
Use Scenario: Safeguarding MIPI D-PHY lanes in surround-view camera modules subjected to ISO 10605 discharge in humid environments. IC Role / Device Role / Timing Role: Dual-channel TVS placed at FPC connector entry point; operates within −40°C to +105°C ambient. Use Value: Ensures >100,000 mating cycles without performance drift; validated per AEC-Q101 HBM and MM tests. | Use Scenario: Protecting LVDS pixel clock and data buses in factory automation HMIs where ESD occurs during panel servicing. IC Role / Device Role / Timing Role: Low-capacitance clamp on each LVDS pair; prevents false triggering of receiver comparators during surge. Use Value: Delivers <5 ps added jitter and zero bit errors after 500× ±8 kV contact discharge testing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ24A | Single-channel, SMA package, 38.9V clamping @ 5.8A, 100pF capacitance | Higher capacitance limits use to lower-speed interfaces (≤10 Mbps); larger footprint requires redesign. | Select only if higher surge rating is required and space/capacitance constraints are relaxed. |
| TPD2E001DRYR | 2-channel, SOT-553, 15V VRWM, 25V clamping @ 1A, 12pF capacitance | Lower standoff voltage restricts use to 3.3V/5V logic; insufficient for 24V automotive supply-rail referenced lines. | Prefer for USB ports on consumer devices; not suitable for 24V-biased automotive signal lines. |
Compared with SMAJ24A and TPD2E001DRYR, DESD24VS2UTQ-7 uniquely balances 24V standoff, 30pF capacitance, and AEC-Q101 compliance in SOT23-making it the only option for space-constrained, high-speed, automotive-grade dual-channel protection.
Availability
DESD24VS2UTQ-7 is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial display interfaces, and USB-based embedded diagnostics requiring stable component supply across extended product lifecycles.
Supply support for DESD24VS2UTQ-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' automotive-qualified TVS portfolio, engineered specifically for high-reliability ESD protection in compact, high-speed serial interfaces under harsh environmental conditions.
FAQ
What is the maximum operating temperature for DESD24VS2UTQ-7?
The device is rated for junction and storage temperatures from −55°C to +150°C, fully compliant with AEC-Q101 requirements. Its thermal resistance (RθJA = 330°C/W) assumes mounting on a 2oz copper MRP pad layout; derating applies above +70°C ambient per Figure 1 in DS45484 Rev. 2–2.
Can DESD24VS2UTQ-7 protect bidirectional signal lines like RS-485?
No-it is unidirectional and intended only for DC-biased lines such as USB or HDMI. For true bidirectional protection, a symmetrical TVS array (e.g., DESD24V5S2UTQ-7) or back-to-back diode configuration is required; using this part on AC-coupled or floating lines risks forward conduction during normal operation.
How does the 30pF capacitance impact USB 2.0 signal integrity?
At 30pF per channel, the device adds <0.1 UI jitter and <0.3 dB insertion loss at 240 MHz (half of USB 2.0's 480 MHz fundamental), well within USB-IF compliance margins. Layout best practices-short traces, ground cutouts under pads, and matched D+/D− lengths-preserve eye opening and ensure full-speed interoperability.
Is lead-free and RoHS compliance verified for this part?
Yes-DESD24VS2UTQ-7 is fully RoHS 3 compliant (2015/863/EU), lead-free, halogen-free (<900 ppm Br/Cl, <1000 ppm Sb), and manufactured in IATF 16949-certified facilities. Certificate of Compliance and material declarations are available via Diodes' Quality Portal at https://www.diodes.com/quality/product-definitions/.
DESD24VS2UTQ-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):
- 24V
- Voltage - Breakdown (Min):
- 26.5V
- Voltage - Clamping (Max) @ Ipp:
- 45V
- Current - Peak Pulse (10/1000µs):
- 3A
- 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
DESD24VS2UTQ-7 FAQ
1.How can I place an order for DESD24VS2UTQ-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DESD24VS2UTQ-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 DESD24VS2UTQ-7 reliable?
The price and inventory of DESD24VS2UTQ-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DESD24VS2UTQ-7 is usually 5 days.
3.What payment methods are accepted for DESD24VS2UTQ-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DESD24VS2UTQ-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DESD24VS2UTQ-7?
DESD24VS2UTQ-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DESD24VS2UTQ-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 DESD24VS2UTQ-7?
For technical support, including DESD24VS2UTQ-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DESD24VS2UTQ-7 requirements.
6.How does Aetrix verify that DESD24VS2UTQ-7 is sourced from the original manufacturer or authorized distributors?
All DESD24VS2UTQ-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 DESD24VS2UTQ-7 meets industry standards.
7.What is the process for return or replacement of DESD24VS2UTQ-7?
All DESD24VS2UTQ-7 units undergo pre-shipment inspection (PSI). If there is an issue with DESD24VS2UTQ-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 DESD24VS2UTQ-7 part is unused and in its original packaging.
Return procedure for DESD24VS2UTQ-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DESD24VS2UTQ-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
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
