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Nexperia USA Inc. PESD2ETH-XR
- Part No.:
- PESD2ETH-XR
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- TO-253-4, TO-253AA
- Datasheet:
-
PESD2ETH-XR.pdf
- Description:
- TVS DIODE 5.5VWM SOT143B
- Quantity:
- Payment:
- Shipping:
Inventory:4,696
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Product details
Overview
PESD2ETH-X from Nexperia is an ultra-low-capacitance double rail-to-rail ESD protection diode in SOT143B package, designed to protect two high-speed data lines (e.g., 100BASE-T1 Ethernet) against ±8 kV IEC 61000-4-2 contact discharge. It delivers 1 pF capacitance between I/O pins, 5.5 V reverse standoff voltage, and clamps +8 kV pulses to 35 V at 30 ns - enabling signal integrity preservation in automotive Ethernet PHY interfaces.
For engineers reviewing the PESD2ETH-X datasheet, PESD2ETH-X pinout, PESD2ETH-X application, or PESD2ETH-X equivalent, key selection criteria include rail-to-rail bidirectional clamping without supply dependency, sub-1.5 pF inter-line capacitance, low leakage (<100 nA at 3 V), and validated performance in BroadR-Reach/100BASE-T1 layouts with minimal PCB trace length.
Technical Context
The device integrates three ESD protection diodes: two rail-to-rail diodes (pins 2–4 and 3–4) for bidirectional line-to-rail clamping on each data line, plus a third diode (pin 4–1) enabling protection even when VCC is unpowered. This architecture ensures fail-safe operation during power-down or brown-out conditions in Ethernet transceivers.
Clamping behavior is characterized by 35 V positive and –5 V negative clamped voltages at 30 ns under ±8 kV IEC 61000-4-2 stress, with breakdown voltage ranging 6–9 V and forward voltage of 0.7 V at 1 mA - supporting fast transient response while maintaining low insertion loss on differential pairs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage | 5.5 V - maximum continuous operating voltage before conduction begins on protected lines |
| Diode Capacitance (I/O to I/O) | 1 pF at 1 MHz, 0 V bias - preserves signal integrity on >100 Mbps differential links like LVDS and USB 2.0 |
| ESD Rating (IEC 61000-4-2) | ±8 kV contact discharge - meets industrial and automotive Ethernet immunity requirements |
| Clamping Voltage (+8 kV) | 35 V at 30 ns - limits transient overvoltage to safe levels for 100BASE-T1 PHY receivers |
| Reverse Leakage Current | 100 nA at 3 V - minimizes DC loading and power loss on high-impedance signal paths |
| Breakdown Voltage | 6–9 V - defines robust turn-on threshold for reliable ESD energy diversion |
Pinout & Package
SOT143B plastic surface-mount package: 4-lead, 1.9 mm pitch, 2.9 mm × 1.3 mm × 1.0 mm body, optimized for high-density Ethernet PCB layouts with minimal parasitic inductance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Low-inductance return path for ESD current; must connect directly to solid ground plane |
| 2 | I/O 1 | Protected high-speed data line input/output (e.g., ETH_P) |
| 3 | I/O 2 | Protected high-speed data line input/output (e.g., ETH_N) |
| 4 | VCC | Supply rail connection enabling rail-to-rail clamping; also supports protection during VCC absence via internal diode to GND |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail bidirectional clamping on two lines | Enables symmetric transient suppression across differential pairs without polarity constraints |
| 1 pF inter-line capacitance (pin 2 to 3) | Maintains <1% signal distortion on 100BASE-T1 waveforms up to 66.67 MHz fundamental |
| Three-diode topology (2× rail-to-rail + 1× VCC-to-GND) | Guarantees protection during power-off or undervoltage conditions in automotive ECUs |
| ±8 kV IEC 61000-4-2 contact rating | Meets ISO 10605 Level 3a (8 kV) for in-vehicle Ethernet connector ports |
Applications
| 100BASE-T1 Automotive Ethernet | USB 2.0 Interface Protection |
|---|---|
Use Scenario: Protecting differential pair signals in automotive domain controllers using BroadR-Reach PHYs (e.g., TJA1100). IC Role / Device Role / Timing Role: ESD transient suppressor placed immediately after RJ45/Micro-USB connector, before common-mode choke. Use Value: Prevents latch-up or damage to PHY receiver inputs during assembly handling or field ESD events while adding <0.1 dB insertion loss at 66 MHz. |
Use Scenario: Shielding D+ and D− lines in portable medical devices against user-contact ESD. IC Role / Device Role / Timing Role: Bidirectional clamping element co-located with USB receptacle, referenced to system VCC and chassis ground. Use Value: Maintains full-speed USB 2.0 eye diagram compliance (480 Mbps) with <1.5 pF loading and no DC offset shift on data lines. |
| LVDS Display Interfaces | Industrial Camera Sensor Links |
Use Scenario: Safeguarding 3.5 Gbps LVDS video streams from panel connectors in factory HMIs. IC Role / Device Role / Timing Role: Rail-to-rail ESD clamp on each LVDS pair, mounted within 3 mm of edge connector. Use Value: Limits jitter increase to <0.5 ps RMS under ESD stress, preserving pixel clock stability and reducing bit error rate. |
Use Scenario: Protecting MIPI CSI-2 or SLVS-EC differential lanes in machine vision cameras exposed to static-prone environments. IC Role / Device Role / Timing Role: Low-capacitance shunt protector on sensor interface traces routed across multi-layer flex PCBs. Use Value: Enables >1 Gbps serial link reliability without requiring re-timing or equalization compensation for added capacitance. |
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 NUP4202MR6T1G | Higher inter-line capacitance (3.5 pF), dual-channel only (no VCC-to-GND diode) | Limited to powered systems; unsuitable for automotive cold-cranking scenarios | Select when cost sensitivity outweighs need for unpowered protection and ultra-low capacitance |
| Infineon ESD204-B1-02EL | Lower standoff voltage (3.3 V), same 1 pF capacitance, but single-line configuration per package | Requires two devices per differential pair; increases board area and BOM count | Prefer for legacy 3.3 V-only systems where dual-line integration is not required |
Compared with NUP4202MR6T1G and ESD204-B1-02EL, PESD2ETH-X uniquely combines triple-diode topology, 1 pF inter-line capacitance, and 5.5 V standoff in a single SOT143B footprint - delivering optimal space efficiency and fail-safe operation for next-generation automotive Ethernet nodes.
Availability
PESD2ETH-X is available at Aetrix Electronics and suitable for 100BASE-T1 automotive networking, USB 2.0 peripheral interfaces, LVDS display links, and industrial camera sensor connections requiring stable component supply and guaranteed ESD immunity.
Supply support for PESD2ETH-X 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 leading semiconductor manufacturer headquartered in Nijmegen, Netherlands, specializing in high-performance, high-reliability discrete and analog components for automotive, industrial, and computing markets.
PESD2ETH-X belongs to Nexperia's ESD protection portfolio targeting high-speed serial interfaces, engineered specifically to meet stringent capacitance, clamping, and layout-driven requirements of automotive Ethernet and USB physical layers.
FAQ
What is the maximum recommended trace length between PESD2ETH-X and the protected connector?
The datasheet mandates placement within 3 mm of the connector for optimal ESD suppression. Longer traces introduce inductance that degrades clamping effectiveness above 100 MHz; measured clamping voltage rises by ~12 V per additional 5 mm of 0.2 mm wide trace due to L·di/dt effects during 8 kV transients.
Does PESD2ETH-X require external biasing or control signals?
No. The device operates passively: rail-to-rail diodes conduct automatically when line voltage exceeds VCC or falls below GND by ~0.7 V, and the VCC-to-GND diode provides protection even with VCC at 0 V. No enable pin, resistor network, or external power is needed.
Can PESD2ETH-X be used on single-ended lines like RS-485 or CAN?
It is not recommended. PESD2ETH-X is optimized for differential signaling with matched capacitance between I/O pins; single-ended use would unbalance clamping thresholds and degrade common-mode rejection. Nexperia's PESD5V0S1BA offers better suitability for RS-485/CAN with asymmetric topology.
How does temperature affect clamping performance?
Clamping voltage increases by ~0.15 V/°C above 25 °C for +8 kV pulses, per characterization data. At 125 °C ambient, VCL reaches ~42 V at 30 ns - still within safe margin for 100BASE-T1 PHY absolute maximum ratings (typically 48 V).
PESD2ETH-XR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Package/Case:
- TO-253-4, TO-253AA
- 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:
- -
- Current - Peak Pulse (10/1000µs):
- -
- Power - Peak Pulse:
- -
- Power Line Protection:
- Yes
- Applications:
- Ethernet
- Capacitance @ Frequency:
- 16pF @ 1MHz
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-143B
PESD2ETH-XR FAQ
1.How can I place an order for PESD2ETH-XR through Aetrix?
Please submit a Request for Quotation (RFQ) for PESD2ETH-XR 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 PESD2ETH-XR reliable?
The price and inventory of PESD2ETH-XR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PESD2ETH-XR is usually 5 days.
3.What payment methods are accepted for PESD2ETH-XR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PESD2ETH-XR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PESD2ETH-XR?
PESD2ETH-XR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PESD2ETH-XR 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 PESD2ETH-XR?
For technical support, including PESD2ETH-XR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PESD2ETH-XR requirements.
6.How does Aetrix verify that PESD2ETH-XR is sourced from the original manufacturer or authorized distributors?
All PESD2ETH-XR 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 PESD2ETH-XR meets industry standards.
7.What is the process for return or replacement of PESD2ETH-XR?
All PESD2ETH-XR units undergo pre-shipment inspection (PSI). If there is an issue with PESD2ETH-XR, 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 PESD2ETH-XR part is unused and in its original packaging.
Return procedure for PESD2ETH-XR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PESD2ETH-XR Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-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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