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Nexperia USA Inc. PESD2ETHAD-QX
- Part No.:
- PESD2ETHAD-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- SC-74, SOT-457
- Datasheet:
-
PESD2ETHAD-QX.pdf
- Description:
- PESD2ETHAD-Q/SOT457/SC-74
- Quantity:
- Payment:
- Shipping:
Inventory:3,007
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Product details
Overview
PESD2ETHAD-Q from Nexperia is an ultra-low-capacitance double rail-to-rail ESD protection diode in SOT457 (SC-74/TSOP6) package, designed to protect two high-speed automotive data lines-specifically 100BASE-T1 Ethernet and LVDS-against ESD up to 12 kV (IEC 61000-4-2) and 23 kV (ISO 10605), with per-channel capacitance of 2.0–2.3 pF at 1 MHz and reverse standoff voltage of 5.5 V.
For engineers reviewing the PESD2ETHAD-Q datasheet, PESD2ETHAD-Q pinout, PESD2ETHAD-Q application, or PESD2ETHAD-Q equivalent, this device is selected for automotive Ethernet signal integrity where sub-2.5 pF channel capacitance, rail-to-rail clamping, and AEC-Q101 qualification are mandatory design requirements.
Technical Context
This dual-channel ESD protector integrates two ultra-low-capacitance rail-to-rail diodes plus a dedicated VCC-to-ground Zener diode, enabling full protection even when supply is absent. It delivers bidirectional clamping with dynamic resistance of 0.83 Ω (positive) and 0.62 Ω (negative), and clamps transients to ≤12.3 V at 3.5 A (8/20 µs).
The device operates across –55 °C to +150 °C ambient, supports 100BASE-T1 differential signaling by placing directly at connector entry, and maintains <100 nA reverse leakage at 5.5 V, ensuring minimal signal loading on high-speed lines.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Capacitance (per I/O) | 2.0–2.3 pF @ 1 MHz, 0 V - preserves signal integrity on 100BASE-T1/LVDS links up to 100+ MHz |
| Reverse Standoff Voltage | 5.5 V - matches 3.3 V/5 V automotive bus rails without false triggering |
| ESD Rating (IEC 61000-4-2) | ±12 kV contact - exceeds automotive OEM ESD immunity requirements for exterior-facing ports |
| Clamping Voltage | 12.3 V @ 3.5 A (8/20 µs) - limits transient overvoltage to safe levels for PHY IC inputs |
| Dynamic Resistance | 0.83 Ω (positive), 0.62 Ω (negative) - enables fast, low-loss energy diversion during ESD events |
| AEC-Q101 Qualified | Yes - validated for automotive underhood and infotainment applications per stress test standard |
| Package | SOT457 (SC-74/TSOP6) - 6-pin surface-mount footprint with 0.65 mm pitch, optimized for high-density PCB layout |
Pinout & Package
SOT457 (SC-74/TSOP6) plastic surface-mount package: 6-lead, 1.7 mm × 3.1 mm body, 0.65 mm lead pitch, 0.95 mm height, with gull-wing leads and pin 1 index marker.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | I/O 1 | Protected high-speed differential line (e.g., 100BASE-T1 TD+) |
| 2 | GND | Low-inductance ESD return path; must connect to solid ground plane |
| 3 | I/O 2 | Protected high-speed differential line (e.g., 100BASE-T1 TD−) |
| 4 | I/O 2 | Second terminal of I/O 2 rail-to-rail diode pair (shared cathode/anode configuration) |
| 5 | VCC | Supply-referenced Zener clamp node; enables active protection when powered |
| 6 | I/O 1 | Second terminal of I/O 1 rail-to-rail diode pair (shared cathode/anode configuration) |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail bidirectional clamping | Enables protection of both positive and negative transients on each I/O line without polarity constraints |
| Dedicated VCC-to-GND Zener diode | Ensures full ESD protection remains active even during power-down or supply brownout conditions |
| 2.0–2.3 pF per channel capacitance | Minimizes signal distortion and insertion loss on 100BASE-T1 (66.67 MHz fundamental) and LVDS channels |
| 0.62–0.83 Ω dynamic resistance | Reduces clamping voltage overshoot and improves energy dissipation efficiency during fast ESD pulses |
| AEC-Q101 qualification | Validates reliability for automotive under-hood and ADAS domain controller deployments over full temperature range |
Applications
| 100BASE-T1 Automotive Ethernet | Automotive LVDS Links |
|---|---|
Use Scenario: Protection of differential pairs in automotive Ethernet PHY interfaces compliant with OPEN Alliance BroadR-Reach specification. IC Role / Device Role / Timing Role: ESD transient suppressor placed immediately at connector entry before common-mode choke. Use Value: Maintains <2.3 pF loading per line to preserve signal rise/fall times and eye diagram integrity at 100 Mbps. |
Use Scenario: Signal line protection for camera sensor links (e.g., rear-view, surround-view) using LVDS output. IC Role / Device Role / Timing Role: Bidirectional rail-to-rail clamp on LVDS TX/RX pairs to prevent latch-up in serializer/deserializer ICs. Use Value: Clamps ±12 kV ESD strikes to <12.3 V while adding negligible jitter due to ultra-low capacitance. |
| USB 2.0 Automotive | Automotive Infotainment Display Interfaces |
Use Scenario: ESD hardening of USB 2.0 D+/D− lines in vehicle head units or telematics control units. IC Role / Device Role / Timing Role: Low-capacitance shunt protector placed between connector and USB transceiver IC. Use Value: Meets USB 2.0 eye mask requirements with <2.3 pF per line and <100 nA leakage at 5.5 V standoff. |
Use Scenario: Protection of high-speed display pixel clock and data lanes (e.g., FPD-Link III, LVDS) in digital instrument clusters. IC Role / Device Role / Timing Role: Dual-channel rail-to-rail clamp on parallel video data buses operating up to 1.5 Gbps. Use Value: Prevents display corruption or panel reset caused by ESD-induced latch-up in timing controller ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NUP4105MR6T1G | Single-channel, 0.5 pF typical capacitance, 5.5 V standoff, ±15 kV IEC 61000-4-2 rating | Requires two devices for dual-line protection; lacks integrated VCC clamp | Preferred only when lowest possible capacitance (<0.6 pF) is prioritized over integration and supply-independent operation |
| Vishay VEML6030X01 | Not applicable - optical ambient light sensor, not an ESD protector | N/A - incorrect functional category | Excluded from consideration; misidentified as ESD protection device |
Compared with NUP4105MR6T1G, PESD2ETHAD-Q provides integrated dual-channel rail-to-rail protection with VCC-referenced clamping in one SOT457 package, reducing PCB area and eliminating inter-device skew-critical for differential automotive Ethernet signals.
Availability
PESD2ETHAD-Q is available at Aetrix Electronics and suitable for automotive Ethernet PHY interfaces, LVDS camera links, and USB 2.0 infotainment systems requiring stable component supply with AEC-Q101 compliance and traceable sourcing.
Supply support for PESD2ETHAD-Q 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 for automotive and industrial markets.
PESD2ETHAD-Q belongs to Nexperia's automotive-grade ESD protection portfolio, engineered specifically for high-speed differential data lines in vehicles-emphasizing ultra-low capacitance, rail-to-rail clamping, and robust AEC-Q101 qualification.
FAQ
What is the maximum clamping voltage of PESD2ETHAD-Q during an 8/20 µs surge event?
The clamping voltage is 12.3 V at a peak pulse current of 3.5 A under 8/20 µs waveform conditions (IEC 61000-4-5). This value is measured from I/O pins to GND and ensures protected downstream PHY ICs remain within absolute maximum ratings during surge events.
Can PESD2ETHAD-Q protect signal lines when VCC is unpowered?
Yes. The device includes a dedicated Zener diode between pin 5 (VCC) and GND, enabling full rail-to-rail ESD protection on both I/O channels even when no supply voltage is applied-verified per ISO 10605 testing with 23 kV contact discharge.
How does the 2.0–2.3 pF capacitance impact 100BASE-T1 signal integrity?
At 66.67 MHz fundamental frequency, this capacitance introduces <0.1 dB insertion loss and <0.5° phase shift-well within OPEN Alliance eye mask tolerances. Layout best practices (short traces, ground vias near pins) maintain signal fidelity up to 150 MHz harmonics.
Is PESD2ETHAD-Q compatible with reflow soldering per J-STD-020?
Yes. The SOT457 package is qualified for standard lead-free reflow profiles (peak 260 °C, 20–40 sec above 217 °C), with recommended solder paste stencil apertures of 0.55 mm × 0.70 mm per pad and 6× land pattern per JEDEC MO-178AA.
PESD2ETHAD-QX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Package/Case:
- SC-74, SOT-457
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Steering (Rail to Rail)
- Unidirectional Channels:
- 2
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5.5V (Max)
- Voltage - Breakdown (Min):
- 6V
- Voltage - Clamping (Max) @ Ipp:
- 12.3V
- Current - Peak Pulse (10/1000µs):
- 3.5A (8/20µs)
- Power - Peak Pulse:
- -
- Power Line Protection:
- Yes
- Applications:
- Ethernet, USB
- Capacitance @ Frequency:
- 2pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-TSOP
PESD2ETHAD-QX FAQ
1.How can I place an order for PESD2ETHAD-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for PESD2ETHAD-QX 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 PESD2ETHAD-QX reliable?
The price and inventory of PESD2ETHAD-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PESD2ETHAD-QX is usually 5 days.
3.What payment methods are accepted for PESD2ETHAD-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PESD2ETHAD-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PESD2ETHAD-QX?
PESD2ETHAD-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PESD2ETHAD-QX 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 PESD2ETHAD-QX?
For technical support, including PESD2ETHAD-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PESD2ETHAD-QX requirements.
6.How does Aetrix verify that PESD2ETHAD-QX is sourced from the original manufacturer or authorized distributors?
All PESD2ETHAD-QX 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 PESD2ETHAD-QX meets industry standards.
7.What is the process for return or replacement of PESD2ETHAD-QX?
All PESD2ETHAD-QX units undergo pre-shipment inspection (PSI). If there is an issue with PESD2ETHAD-QX, 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 PESD2ETHAD-QX part is unused and in its original packaging.
Return procedure for PESD2ETHAD-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PESD2ETHAD-QX Tags
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Nexperia USA Inc.
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