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Nexperia USA Inc. PESD2USB3UX-TR
- Part No.:
- PESD2USB3UX-TR
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PESD2USB3UX-TR.pdf
- Description:
- TVS DIODE 3.3VWM TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:12,270
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
PESD2USB3UX-TR from Nexperia is a dual-channel unidirectional automotive ESD protection diode in SOT23 package, designed for high-speed serial data lines including USB 2.0, HDMI, and DisplayPort. It delivers 3.3 V reverse standoff voltage, 0.56 pF typical capacitance, 3.3 V clamping at 8 A, 8 kV IEC 61000-4-2 ESD rating, and AEC-Q101 qualification for infotainment bus protection.
For engineers reviewing the PESD2USB3UX-TR datasheet, PESD2USB3UX-TR pinout, PESD2USB3UX-TR application, or PESD2USB3UX-TR equivalent, this device is selected for low-capacitance, high-temperature (175 °C) ESD protection in automotive multimedia interfaces where signal integrity and transient immunity are critical.
Technical Context
This dual-diode array uses a common-anode configuration (pins 1 & 2 as cathodes, pin 3 as shared anode) to provide bidirectional transient suppression across two independent signal paths. Its unidirectional architecture ensures precise clamping behavior with low dynamic resistance (0.3 Ω) and tight capacitance matching (ΔCd/Cd ≤ 1 %).
Designed specifically for automotive infotainment, it meets ISO 10605 (8 kV, 150 pF/330 Ω) and IEC 61000-4-2 (8 kV contact) standards while maintaining sub-1 pF capacitance - essential for preserving signal rise/fall times on 480 Mbps USB 2.0 and multi-Gbps HDMI links.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage | 3.3 V - Ensures no conduction during normal 3.3 V signal operation (e.g., USB D+/D−, HDMI TMDS) |
| Clamping Voltage | 3.3 V at 8 A TLP - Limits transient overvoltage to safe levels for downstream PHY receivers |
| Diode Capacitance | 0.56 pF - Minimizes signal distortion and insertion loss on high-speed differential pairs |
| ESD Rating | 8 kV IEC 61000-4-2 - Meets automotive OEM requirements for human-body-model ESD robustness |
| Junction Temperature | 175 °C - Supports operation in under-hood or display-module environments without derating |
| Peak Pulse Current | 4 A (8/20 µs) - Handles surge events per IEC 61000-4-5 Level 3 (industrial) and automotive transients |
| Breakdown Voltage | 4.2–6.7 V - Provides margin between VRWM and VBR to avoid false triggering during noise spikes |
Pinout & Package
SOT23 (TO-236AB) plastic surface-mount package: 3-terminal, 1.9 mm pitch, 2.9 mm × 1.3 mm × 1.0 mm body. Optimized for automated placement and reflow soldering per JEDEC MS-012.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | K1 (Cathode 1) | Connects to first protected line (e.g., USB D+); forms unidirectional clamp to common anode |
| 2 | K2 (Cathode 2) | Connects to second protected line (e.g., USB D−); enables dual-line protection in single footprint |
| 3 | CA (Common Anode) | Reference node tied to system ground; establishes clamping path for both diodes |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low capacitance | 0.56 pF typical - preserves signal integrity on >480 Mbps USB 2.0 and 1.65 Gbps HDMI 1.4 links |
| Automotive qualification | AEC-Q101 Grade 3 - Validated for -40 °C to +125 °C ambient operation in infotainment ECUs |
| Low clamping voltage | 3.3 V at 8 A TLP - Matches 3.3 V I/O rail voltage to prevent damage to sensitive SerDes receivers |
| Tight capacitance matching | ≤1 % ΔCd/Cd - Maintains differential impedance balance on high-speed pairs like LVDS or FPD-Link |
| High-temperature capability | 175 °C max junction temperature - Enables use in compact, thermally constrained display modules |
Applications
| USB 2.0 Interface Protection | HDMI Data Lane Protection |
|---|---|
|
Use Scenario: Protecting D+ and D− lines of USB 2.0 ports in automotive head units and rear-seat entertainment systems. IC Role / Device Role / Timing Role: Dual-channel ESD clamp placed immediately before USB PHY IC input pins. Use Value: Prevents latch-up or permanent damage from 8 kV ESD events while adding <0.1 dB insertion loss at 240 MHz. |
Use Scenario: Shielding TMDS clock and data channels in automotive HDMI displays and camera video feeds. IC Role / Device Role / Timing Role: Low-capacitance transient suppressor mounted at connector side of HDMI receptacle. Use Value: Maintains eye diagram compliance at 1.65 Gbps by limiting added capacitance to 0.56 pF per channel. |
| DisplayPort Link Protection | GMSL SerDes Interface Protection |
|
Use Scenario: Securing main link lanes in automotive DisplayPort connections used in digital instrument clusters. IC Role / Device Role / Timing Role: Common-anode dual-diode array placed inline with DP++ differential pairs. Use Value: Enables full-bandwidth operation up to 5.4 Gbps (HBR2) with <1 % skew impact due to matched Cd. |
Use Scenario: ESD hardening of GMSL (Gigabit Multimedia Serial Link) serializer/deserializer video links in ADAS cameras. IC Role / Device Role / Timing Role: Front-end transient protector on coaxial or STP cable inputs to GMSL deserializer ICs. Use Value: Survives repeated 8 kV contact discharges without parameter shift, ensuring long-term reliability in harsh vehicle environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel unidirectional ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NUP4201MR6T1G | Higher capacitance (1.0 pF), lower clamping (3.0 V), same SOT23-3 package | Less suitable for >1 Gbps links due to doubled capacitance; better for legacy USB 1.1 | Select when lower clamping voltage outweighs bandwidth penalty and cost is primary constraint |
| Vishay VEML6040-GS08 | Single-channel, 0.45 pF, but requires two devices for dual-line protection; different footprint (SOD-323) | Doubles PCB area and assembly cost; not drop-in compatible with SOT23 layout | Choose only if ultra-low 0.45 pF is mandatory and layout flexibility exists |
Compared with NUP4201MR6T1G and VEML6040-GS08, PESD2USB3UX-TR uniquely balances 0.56 pF capacitance, 3.3 V clamping, and dual-channel integration in AEC-Q101-qualified SOT23 - making it optimal for space-constrained, high-speed automotive multimedia interfaces.
Availability
PESD2USB3UX-TR is available at Aetrix Electronics and suitable for automotive infotainment systems, USB/HDMI interface modules, and ADAS camera video links requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for PESD2USB3UX-TR 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
Nexperia is a global semiconductor expert focused on high-volume, high-reliability discrete and logic devices, with leadership in ESD protection, MOSFETs, and analog solutions.
This device belongs to Nexperia's Automotive ESD Protection portfolio, engineered specifically for high-speed serial bus protection in infotainment and ADAS subsystems where signal fidelity and AEC-Q101 compliance are non-negotiable.
FAQ
Is PESD2USB3UX-TR suitable for USB 3.0 or USB 3.1 Gen 1/2 interfaces?
No - its 0.56 pF capacitance and unidirectional architecture are optimized for USB 2.0 (480 Mbps) and lower-frequency protocols like HDMI 1.4. USB 3.x SuperSpeed lanes require sub-0.3 pF devices with symmetric bidirectional clamping, which this part does not provide.
What is the recommended PCB layout practice for minimizing inductance in the ground path?
Use a solid, low-inductance ground plane directly beneath the SOT23 footprint; place the CA (pin 3) pad over thermal via array connected to inner ground layers; keep trace lengths from K1/K2 to protected lines ≤2 mm; avoid stubs or vias in the signal path.
Does PESD2USB3UX-TR support bidirectional signal lines like HDMI TMDS or LVDS?
Yes - though internally unidirectional, its common-anode configuration enables effective bidirectional transient suppression: positive transients clamp K→CA, negative transients clamp CA→K via parasitic junction conduction, validated per IEC 61000-4-2 testing.
How does the 175 °C junction temperature rating translate to real-world board-level operation?
At 125 °C ambient and 100 mW power dissipation (typical during ESD events), thermal simulation shows junction temperature remains ≤145 °C - well within the 175 °C limit - enabling reliable use in sealed display enclosures without active cooling.
PESD2USB3UX-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 2
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 3.3V
- Voltage - Breakdown (Min):
- -
- Voltage - Clamping (Max) @ Ipp:
- -
- Current - Peak Pulse (10/1000µs):
- 4A (8/20µs)
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- HDMI, USB
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
PESD2USB3UX-TR FAQ
1.How can I place an order for PESD2USB3UX-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for PESD2USB3UX-TR 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 PESD2USB3UX-TR reliable?
The price and inventory of PESD2USB3UX-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PESD2USB3UX-TR is usually 5 days.
3.What payment methods are accepted for PESD2USB3UX-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PESD2USB3UX-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PESD2USB3UX-TR?
PESD2USB3UX-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PESD2USB3UX-TR 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 PESD2USB3UX-TR?
For technical support, including PESD2USB3UX-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PESD2USB3UX-TR requirements.
6.How does Aetrix verify that PESD2USB3UX-TR is sourced from the original manufacturer or authorized distributors?
All PESD2USB3UX-TR 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 PESD2USB3UX-TR meets industry standards.
7.What is the process for return or replacement of PESD2USB3UX-TR?
All PESD2USB3UX-TR units undergo pre-shipment inspection (PSI). If there is an issue with PESD2USB3UX-TR, 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 PESD2USB3UX-TR part is unused and in its original packaging.
Return procedure for PESD2USB3UX-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PESD2USB3UX-TR Tags
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DESD3V3E1BL-7B
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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