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Nexperia USA Inc. PESD2ETH1G-TR
- Part No.:
- PESD2ETH1G-TR
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PESD2ETH1G-TR.pdf
- Description:
- TVS DIODE TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,897
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Product details
Overview
PESD2ETH1G-TR from Nexperia is a dual-channel automotive-grade ESD protection diode in SOT23 package, designed specifically for OPEN Alliance 100BASE-T1 and 1000BASE-T1 Ethernet bus lines. It provides bidirectional clamping with 24 V reverse standoff voltage, <2 pF capacitance per channel, 100 V minimum trigger voltage, and 30 kV IEC 61000-4-2 contact ESD immunity-enabling robust signal integrity in high-speed in-vehicle networks.
For engineers reviewing the PESD2ETH1G-TR datasheet, PESD2ETH1G-TR pinout, PESD2ETH1G-TR application, or PESD2ETH1G-TR equivalent, key selection criteria include differential capacitance matching (<0.5% ΔCd/Cd), dynamic resistance (0.6 Ω typ), AEC-Q101 qualification, and verified 1000-cycle OPEN Alliance-compliant ESD stress endurance at 15 kV.
Technical Context
This device implements a common-cathode dual-diode architecture (pins 1 & 2 as cathodes, pin 3 as shared cathode) optimized for differential Ethernet signaling. Its low 1.8 pF typical capacitance and <0.5% capacitance matching between channels preserve signal integrity up to 1 GHz, satisfying OPEN Alliance return loss (Sdd11) and insertion loss (Sdd21) limits for both 100BASE-T1 and 1000BASE-T1.
The 100 V minimum trigger voltage ensures reliable clamping only during ESD events-not during normal 2.5 V common-mode swings-while its 28 V holding voltage prevents latch-up. Dynamic resistance of 0.6 Ω enables fast energy diversion with minimal voltage overshoot under 40 A TLP pulses.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage | 24 V max - defines maximum continuous common-mode voltage before leakage rise; compatible with 100/1000BASE-T1 PHY operating range. |
| Diode Capacitance | 1.8 pF typ, <2 pF max - ensures minimal signal distortion on 100 MHz–1 GHz differential Ethernet links. |
| Trigger Voltage | 100 V min (TLP, 100 ns) - guarantees no false triggering during normal transceiver operation. |
| ESD Withstand | 30 kV contact (IEC 61000-4-2) - meets automotive EMC requirements for infotainment and ADAS domain controllers. |
| Holding Voltage | 28 V typ - maintains safe clamping level post-trigger without latch-up or thermal runaway. |
| Dynamic Resistance | 0.6 Ω typ (40 A, 100 ns) - minimizes clamping voltage overshoot during fast ESD transients. |
| Capacitance Matching | ±0.5% ΔCd/Cd - preserves differential symmetry critical for Sdd21 and Ssd21 performance in 1000BASE-T1. |
Pinout & Package
SOT23 plastic surface-mount package (2.9 mm × 1.3 mm × 1.0 mm, 1.9 mm pitch); thermally enhanced for automotive under-hood environments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (Channel A) | Connects to BI_DA+ line; forms one half of differential ESD clamp pair. |
| 2 | Cathode (Channel B) | Connects to BI_DA− line; matched capacitance and trigger behavior with Pin 1. |
| 3 | Common Cathode | Shared low-impedance return path enabling symmetrical clamping and minimized loop inductance. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-channel symmetry | 0.5% capacitance matching (ΔCd/Cd) ensures balanced differential insertion loss and return loss per OPEN Alliance test plan. |
| OPEN Alliance compliance | Validated across all four 100BASE-T1 ESD suppressor tests (return loss, insertion loss, CMRR, RF clamping) and extended to 1000BASE-T1 state-of-the-art limits. |
| AEC-Q101 qualification | Rated for −55 °C to +150 °C ambient; qualified for under-hood and ADAS ECU deployment without derating. |
| Repetitive ESD endurance | 1000 contact discharges at 15 kV (IEC 61000-4-2) with no S-parameter degradation-verified via pre/post 20× ±8 kV ISO 10605 testing. |
| Low dynamic resistance | 0.6 Ω typ enables sub-30 V clamping voltage at 40 A TLP peak current-critical for protecting Class I/II PHYs (JEDEC-HBM 2–4 kV). |
Applications
| Automotive Ethernet PHY Protection | ADAS Camera Link ESD Hardening |
|---|---|
|
Use Scenario: Installed between 100BASE-T1 PHY and connector on central gateway module to protect against ESD coupling through harnesses. IC Role / Device Role / Timing Role: Bidirectional transient voltage suppressor; clamps ESD-induced overvoltage on differential pairs while preserving signal fidelity. Use Value: Enables pass/fail compliance with OPEN Alliance 100BASE-T1 EMC Test Specification (Section 2.2) and supports 15 kV system-level ESD immunity. |
Use Scenario: Placed inline on MIPI-over-Ethernet camera links in surround-view systems using 1000BASE-T1 physical layer. IC Role / Device Role / Timing Role: Differential ESD clamp with matched capacitance; maintains <−15 dB Sdd21 insertion loss up to 500 MHz post-ESD stress. Use Value: Preserves eye diagram integrity after repetitive ±8 kV ISO 10605 discharges-validated by unchanged Ssd21 differential-to-common-mode rejection. |
| In-Vehicle Infotainment Backbone | Domain Controller Ethernet Hub |
|
Use Scenario: Integrated into head unit Ethernet switch interface to safeguard LVDS-based display links co-routed with 100BASE-T1 data lanes. IC Role / Device Role / Timing Role: Dual-line ESD protector with common-cathode topology; minimizes ground bounce during simultaneous clamping events. Use Value: Achieves <−20 dB Ssd21 CMRR across 100 MHz–1 GHz-meeting OPEN Alliance differential-to-common-mode rejection requirements for noise-sensitive audio/video streams. |
Use Scenario: Mounted on zonal controller board to protect 1000BASE-T1 uplink ports connecting to vehicle backbone network. IC Role / Device Role / Timing Role: High-reliability ESD clamp rated for 2.3 A 8/20 µs surge (IEC 61000-4-5) and 30 kV contact discharge. Use Value: Supports RF clamping test pass at 39 dBm (Class III) without degrading common-mode rejection-ensuring EMC robustness in dense ECU clusters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel automotive Ethernet ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NUF2221MUTAG | Higher capacitance (3.5 pF), lower trigger voltage (70 V), no OPEN Alliance 1000BASE-T1 validation. | Limited to 100BASE-T1; fails Sdd11 return loss margin above 200 MHz per OPEN Alliance test. | Select only if cost sensitivity outweighs 1000BASE-T1 readiness and high-frequency signal integrity needs. |
| Vishay VEML6040-GS08 | Single-channel, 2.2 pF, 120 V trigger, but lacks common-cathode dual configuration and AEC-Q101 full qualification. | Requires two devices per differential pair; increases PCB area and mismatch risk vs. integrated dual-channel design. | Use only when discrete layout flexibility is required and common-cathode symmetry is not critical. |
Compared with NUF2221MUTAG and VEML6040-GS08, PESD2ETH1G-TR uniquely delivers certified 1000BASE-T1 readiness, <0.5% capacitance matching, and single-package dual-channel symmetry-reducing component count, layout complexity, and high-frequency signal skew in next-gen automotive Ethernet nodes.
Availability
PESD2ETH1G-TR is available at Aetrix Electronics and suitable for automotive Ethernet PHY protection, ADAS camera link hardening, and domain controller hub interfaces requiring stable component supply across multi-year vehicle production cycles.
Supply support for PESD2ETH1G-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 automotive-qualified ESD protection and power management solutions.
PESD2ETH1G-TR belongs to Nexperia's Automotive Ethernet ESD Protection product line, engineered specifically to meet OPEN Alliance 100BASE-T1/1000BASE-T1 compliance requirements while maintaining signal integrity in high-speed differential automotive networks.
FAQ
Is PESD2ETH1G-TR qualified for under-hood temperature operation?
Yes. It is AEC-Q101 qualified with specified operation from −55 °C to +150 °C ambient temperature and junction temperature up to 150 °C. The SOT23 package's thermal resistance and silicon design enable reliable performance in engine bay and transmission control modules without derating.
Does PESD2ETH1G-TR support both 100BASE-T1 and 1000BASE-T1 physical layers?
Yes. It is fully compliant with OPEN Alliance 100BASE-T1 specifications and validated against state-of-the-art 1000BASE-T1 requirements-including return loss (Sdd11), insertion loss (Sdd21), differential-to-common-mode rejection (Ssd21), and RF clamping up to 39 dBm-using 1000BASE-T1–compliant common-mode chokes.
What is the significance of the common cathode (Pin 3) configuration?
The common cathode enables symmetrical clamping on both differential lines with a single low-inductance return path, minimizing ground bounce and ensuring matched dynamic response. This architecture is essential for preserving differential signal integrity and passing OPEN Alliance S-parameter tests, especially after repetitive ESD stress.
How does PESD2ETH1G-TR differ from generic TVS diodes in automotive Ethernet designs?
Unlike generic TVS diodes, it features <2 pF capacitance, <0.5% inter-channel capacitance matching, 100 V minimum trigger voltage, and full OPEN Alliance test validation-including 1000-cycle 15 kV ESD endurance and RF clamping at Class III (39 dBm). These attributes are mandatory for 100/1000BASE-T1 PHY interoperability and EMC certification.
PESD2ETH1G-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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- -
- Voltage - Breakdown (Min):
- 100V
- Voltage - Clamping (Max) @ Ipp:
- -
- Current - Peak Pulse (10/1000µs):
- -
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- Ethernet
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
PESD2ETH1G-TR FAQ
1.How can I place an order for PESD2ETH1G-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for PESD2ETH1G-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 PESD2ETH1G-TR reliable?
The price and inventory of PESD2ETH1G-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PESD2ETH1G-TR is usually 5 days.
3.What payment methods are accepted for PESD2ETH1G-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PESD2ETH1G-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PESD2ETH1G-TR?
PESD2ETH1G-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PESD2ETH1G-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 PESD2ETH1G-TR?
For technical support, including PESD2ETH1G-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PESD2ETH1G-TR requirements.
6.How does Aetrix verify that PESD2ETH1G-TR is sourced from the original manufacturer or authorized distributors?
All PESD2ETH1G-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 PESD2ETH1G-TR meets industry standards.
7.What is the process for return or replacement of PESD2ETH1G-TR?
All PESD2ETH1G-TR units undergo pre-shipment inspection (PSI). If there is an issue with PESD2ETH1G-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 PESD2ETH1G-TR part is unused and in its original packaging.
Return procedure for PESD2ETH1G-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PESD2ETH1G-TR Tags
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Nexperia USA Inc.
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