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Nexperia USA Inc. PESD2ETH100-TR
- Part No.:
- PESD2ETH100-TR
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PESD2ETH100-TR.pdf
- Description:
- TVS DIODE 24VWM TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,654
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Product details
Overview
PESD2ETH100-TR from Nexperia is a dual-line automotive ESD protection diode in SOT23 package, designed specifically for OPEN Alliance 100BASE-T1 Ethernet bus lines. It delivers 30 kV IEC 61000-4-2 contact ESD immunity, 100 V minimum trigger voltage (Vt1), sub-3 pF capacitance (Cd = 2.5 pF typ), and AEC-Q101 qualification for in-vehicle network robustness.
For engineers reviewing the PESD2ETH100-TR datasheet, PESD2ETH100-TR pinout, PESD2ETH100-TR application, or PESD2ETH100-TR equivalent, key selection criteria include 100BASE-T1 compliance, differential line symmetry (ΔCd/Cd ≤ 0.5%), low dynamic resistance (Rdyn = 0.44 Ω), and verified 1000-cycle OPEN Alliance stress endurance.
Technical Context
This bidirectional TVS diode uses a common-cathode dual-diode architecture (pins 1 & 2 as cathodes, pin 3 as shared cathode) to clamp both differential signal lines symmetrically during ±8 kV ISO 10605 or ±30 kV IEC 61000-4-2 transients. Its TLP-measured Vt1 = 100–130 V ensures reliable triggering above 100BASE-T1 common-mode voltage limits while maintaining <24 V reverse standoff (VRWM).
The device achieves <3 pF capacitance per line with ≤0.5% matching (ΔCd/Cd), enabling minimal signal integrity impact on 100 Mbps differential Ethernet. Its dynamic resistance of 0.44 Ω at 70 A (100 ns pulse) and clamping voltage under 160 V (positive) / –160 V (negative) at 3.2 A peak pulse current ensure effective transient energy diversion without PHY damage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Trigger Voltage (Vt1) | 100–130 V (TLP, 100 ns): Ensures activation only above 100BASE-T1 common-mode operating range, avoiding false triggering. |
| Diode Capacitance (Cd) | 2.5 pF typ (1 MHz, 0 V); <3 pF max: Preserves signal integrity for 100 Mbps differential Ethernet with minimal insertion loss. |
| Capacitance Matching (ΔCd/Cd) | ≤0.5%: Guarantees symmetrical differential line loading, critical for return loss (Sdd11) and common-mode rejection (Ssd21) compliance. |
| ESD Withstand | 30 kV contact (IEC 61000-4-2) ×1000 cycles: Validated per OPEN Alliance specification for long-term reliability in automotive harness environments. |
| Reverse Standoff (VRWM) | 24 V max: Safely isolates 12 V automotive supply rails while allowing full 100BASE-T1 differential swing (±2.4 V). |
| Dynamic Resistance (Rdyn) | 0.44 Ω (70 A, 100 ns): Enables low-voltage clamping under high-current transients, reducing stress on downstream PHY ICs. |
| AEC-Q101 Qualified | Qualified for automotive grade operation (−55 °C to +150 °C junction): Supports under-hood and ADAS module deployment. |
Pinout & Package
Package: SOT23 plastic surface-mount package (2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm lead pitch), JEDEC TO-236AB compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | K (Cathode) | First protected line cathode - connects to BI_DA+ or one differential Ethernet signal line. |
| 2 | K (Cathode) | Second protected line cathode - connects to BI_DA− or complementary differential Ethernet signal line. |
| 3 | CC (Common Cathode) | Shared cathode node tied to system ground - enables symmetrical bidirectional clamping across both signal lines. |
Key Features
| Feature | Design Value |
|---|---|
| OPEN Alliance 100BASE-T1 Compliance | Fully validated per IEEE 100BASE-T1 EMC Test Specification - passes all four required tests including RF clamping and post-ESD S-parameter stability. |
| Differential Line Symmetry | Capacitance matching ≤0.5% and matched Vt1 ensure balanced clamping, preserving differential signaling integrity and meeting Sdd11/Sdd21 return/insertion loss limits. |
| Low Dynamic Resistance | 0.44 Ω clamping impedance minimizes voltage overshoot during fast transients, protecting sensitive 100BASE-T1 PHY receivers from latch-up or damage. |
| Repetitive ESD Endurance | Validated for 1000 contact discharges at 30 kV - exceeds OPEN Alliance requirement and supports long-life vehicle ECU deployments. |
| Automotive Thermal Robustness | Junction temperature rating up to +150 °C and −55 °C to +150 °C ambient operation enable placement near power electronics or in engine bay modules. |
Applications
| 100BASE-T1 Automotive Ethernet | LVDS-Based Camera Links |
|---|---|
|
Use Scenario: Protecting differential pairs in ADAS domain controllers connecting radar, lidar, and surround-view cameras via 100 Mbps automotive Ethernet. IC Role / Device Role / Timing Role: Bidirectional ESD clamp placed between connector and PHY, providing symmetrical transient suppression without degrading Sdd21 insertion loss or Ssd21 common-mode rejection. Use Value: Maintains >–3 dB insertion loss up to 100 MHz and >–60 dB differential-to-common-mode conversion after 20× ±8 kV ESD events - ensuring functional safety compliance over vehicle lifetime. |
Use Scenario: Shielding LVDS video links from ESD in rear-seat infotainment displays and digital instrument clusters. IC Role / Device Role / Timing Role: Dual-line transient suppressor mounted at board edge, clamping both LVDS+ and LVDS− against human-body-model discharges during service or assembly. Use Value: Sub-3 pF capacitance prevents signal rise-time degradation (<1 ns impact), preserving pixel clock integrity and eliminating display artifacts in 1080p video streams. |
| Automotive Body Control Modules | Electric Powertrain Gate Driver Interfaces |
|
Use Scenario: Securing CAN-FD or LIN-over-Ethernet gateways in body control units exposed to door harness ESD events. IC Role / Device Role / Timing Role: Low-leakage (1 nA typ at 24 V) ESD protector that avoids DC bias shift on communication lines during sleep mode. Use Value: Reverse leakage current ≤100 nA ensures no measurable increase in quiescent current - critical for meeting ISO 19453-3 battery drain requirements. |
Use Scenario: Protecting isolated gate driver feedback lines (e.g., DESAT, FLT) in traction inverter control boards. IC Role / Device Role / Timing Role: Fast-triggering (100 V Vt1) clamp preventing false desaturation trips caused by coupling from high-dV/dt IGBT switching noise. Use Value: Clamps transients within 100 ns while holding below 160 V - avoids spurious shutdowns and maintains inverter uptime during aggressive PWM modulation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-line automotive ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NUF2221MUTAG | Higher Cd = 5.5 pF; lower Vt1 = 12 V; not OPEN Alliance 100BASE-T1 certified | Suitable for generic USB/LVDS but fails Sdd11 return loss and repetitive ESD validation for 100BASE-T1 | Select only for non-automotive, non-100BASE-T1 designs where capacitance tolerance is relaxed. |
| Vishay VEML6040-GS08 | Single-channel, photodiode-based sensor - not an ESD protector; incompatible function | No ESD protection capability; serves ambient light sensing, not bus line hardening | Not a functional alternative - excluded from ESD protection use cases. |
Compared with NUF2221MUTAG, PESD2ETH100-TR provides 55% lower capacitance and OPEN Alliance certification essential for automotive Ethernet, while VEML6040-GS08 is unrelated in function and cannot substitute for transient suppression.
Availability
PESD2ETH100-TR is available at Aetrix Electronics and suitable for automotive Ethernet gateways, ADAS camera interfaces, body control modules, and electric powertrain control units requiring stable component supply across multi-year vehicle production cycles.
Supply support for PESD2ETH100-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, logic, and MOSFET solutions, with deep specialization in automotive-grade protection devices.
The PESD2ETH100-TR belongs to Nexperia's automotive ESD protection portfolio, engineered specifically to meet OPEN Alliance 100BASE-T1 compliance requirements for next-generation vehicle Ethernet networks.
FAQ
Is PESD2ETH100-TR compatible with 1000BASE-T1 or only 100BASE-T1?
No - PESD2ETH100-TR is qualified exclusively for 100BASE-T1 (100 Mbps) per OPEN Alliance v1.0 specification. Its 2.5 pF capacitance and S-parameter performance are optimized for the 66 MHz bandwidth of 100BASE-T1; it does not meet the stricter return loss or insertion loss requirements for 1000BASE-T1 (1 GHz bandwidth) and lacks validation for that standard.
Can PESD2ETH100-TR be used on single-ended automotive buses like LIN or CAN?
It is technically possible but not recommended. The device's common-cathode dual-diode structure is optimized for differential pair protection. For single-ended buses, dedicated unidirectional protectors (e.g., PESD5V0S1BA) offer better clamping precision, lower leakage, and smaller footprint - PESD2ETH100-TR introduces unnecessary complexity and cost for non-differential applications.
What is the maximum PCB trace length allowed between PESD2ETH100-TR and the connector?
Per OPEN Alliance test methodology and Nexperia application note AN11176, trace length must be ≤5 mm from device pad to connector pin to maintain controlled impedance and minimize inductance-induced voltage overshoot. Longer traces degrade Sdd21 insertion loss and reduce clamping effectiveness during 1 ns rise-time ESD events.
Does PESD2ETH100-TR require external series resistors or RC filters for optimal performance?
No - the device is designed for direct placement between connector and PHY with no external components. Its matched capacitance and low dynamic resistance eliminate need for tuning networks. Adding series resistors would degrade signal integrity and violate OPEN Alliance S-parameter test conditions; RC filters introduce phase skew and are prohibited in validated reference designs.
PESD2ETH100-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:
- -
- Bidirectional Channels:
- 2
- Voltage - Reverse Standoff (Typ):
- 24V (Max)
- Voltage - Breakdown (Min):
- -
- Voltage - Clamping (Max) @ Ipp:
- -
- Current - Peak Pulse (10/1000µs):
- 3.2A (8/20µs)
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 2.5pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
PESD2ETH100-TR FAQ
1.How can I place an order for PESD2ETH100-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for PESD2ETH100-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 PESD2ETH100-TR reliable?
The price and inventory of PESD2ETH100-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PESD2ETH100-TR is usually 5 days.
3.What payment methods are accepted for PESD2ETH100-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PESD2ETH100-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PESD2ETH100-TR?
PESD2ETH100-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PESD2ETH100-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 PESD2ETH100-TR?
For technical support, including PESD2ETH100-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PESD2ETH100-TR requirements.
6.How does Aetrix verify that PESD2ETH100-TR is sourced from the original manufacturer or authorized distributors?
All PESD2ETH100-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 PESD2ETH100-TR meets industry standards.
7.What is the process for return or replacement of PESD2ETH100-TR?
All PESD2ETH100-TR units undergo pre-shipment inspection (PSI). If there is an issue with PESD2ETH100-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 PESD2ETH100-TR part is unused and in its original packaging.
Return procedure for PESD2ETH100-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PESD2ETH100-TR Tags
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ESD9B5.0ST5G
onsemi
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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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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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