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Nexperia USA Inc. PESD1IVN-UX
- Part No.:
- PESD1IVN-UX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- SC-70, SOT-323
- Datasheet:
-
PESD1IVN-UX.pdf
- Description:
- TVS DIODE 26.5VWM 53VC SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:2,978
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Product details
Overview
PESD1IVN-UX from Nexperia is a bidirectional ESD protection diode in SOT323 (SC-70) package, designed to safeguard single automotive in-vehicle network lines against IEC 61000-4-2 ESD (18 kV contact), IEC 61000-4-5 surge (3 A, 8/20 µs), and transient overvoltage. It features 26.5 V reverse standoff voltage, 8.5–11 pF capacitance at 1 MHz, and clamps to 38 V at 1 A peak pulse current. Used on CAN, LIN, FlexRay, and SENT bus interfaces.
For engineers reviewing the PESD1IVN-UX datasheet, PESD1IVN-UX pinout, PESD1IVN-UX application, or PESD1IVN-UX equivalent, this page delivers verified electrical parameters, validated automotive-grade performance (AEC-Q101), real-world layout guidance for ESD suppression, and precise bidirectional clamping behavior under standardized transients.
Technical Context
This device implements a symmetric, bidirectional TVS structure with dual cathodes (Pin 1 and Pin 3) and a floating center anode (Pin 2, n.c.). Its V-I curve exhibits sharp, low-dynamic-resistance (2 Ω) breakdown at ~30 V and stable clamping up to 53 V at 3 A surge, enabling robust protection without signal distortion on high-speed automotive buses.
Designed specifically for single-line protection, it avoids series impedance or ground-path dependency-unlike array devices-and maintains sub-11 pF capacitance across 0–2.5 V reverse bias, preserving signal integrity on CAN (1 Mbps) and LIN (20 kbps) physical layers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage (VRWM) | 26.5 V - Ensures no conduction during normal bus operation (e.g., CANH/CANL common-mode up to ±27 V). |
| Clamping Voltage (VCL) | 38 V at IPP = 1 A - Limits transient voltage to safe levels for downstream CAN/LIN transceivers rated ≤40 V abs max. |
| Diode Capacitance (Cd) | 8.5–11 pF at 1 MHz, VR = 0 V - Low enough to avoid signal rise-time degradation on 1 Mbps CAN or 20 kbps LIN. |
| ESD Rating | 18 kV per IEC 61000-4-2 (contact) - Meets automotive OEM ESD immunity requirements for exterior connectors and harness interfaces. |
| Surge Current (IPP) | 3 A at 8/20 µs waveform - Handles ISO 7637-3 pulse 5a/b surges on power-supplied vehicle networks. |
| Dynamic Resistance (Rdyn) | 2 Ω - Enables fast, low-impedance clamping response to sub-ns ESD events, minimizing voltage overshoot. |
| AEC-Q101 Qualified | Qualified for automotive underhood and cabin environments - Validated for temperature cycling (-55 °C to +150 °C) and humidity exposure. |
Pinout & Package
SOT323 (SC-70) plastic surface-mounted package: 1.35 mm × 2.2 mm footprint, 0.95 mm height, 3-terminal configuration with gull-wing leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode 1 (K1) | One terminal of bidirectional avalanche junction; connects to protected line (e.g., CANH or LIN). |
| 2 | Not Connected (n.c.) | No internal connection; electrically isolated - must remain unconnected on PCB. |
| 3 | Cathode 2 (K2) | Second terminal of same bidirectional junction; connects to same protected line as Pin 1 for symmetrical clamping. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Protects both positive and negative transients on a single line without polarity sensitivity - ideal for differential buses like CAN. |
| Low dynamic resistance | 2 Ω enables rapid energy shunting during ESD events, reducing clamping time and peak voltage overshoot. |
| Sub-11 pF capacitance | Maintains signal fidelity on 1 Mbps CAN and 20 kbps LIN by avoiding RC filtering effects on edge transitions. |
| AEC-Q101 qualification | Validated reliability for automotive underhood/cabin use, including thermal cycling, mechanical shock, and humidity testing. |
Applications
| CAN Bus Protection | LIN Bus Protection |
|---|---|
|
Use Scenario: ESD protection at OBD-II connector or ECU CANH/CANL pins exposed to service technician handling. IC Role / Device Role / Timing Role: Bidirectional transient voltage suppressor placed directly at connector entry point, clamping ±8 kV ESD pulses before reaching CAN transceiver. Use Value: Prevents latch-up or permanent damage to CAN PHY ICs while maintaining <1 ns response time and <38 V clamping. |
Use Scenario: LIN node protection in body control modules where wiring harnesses connect to door modules or sensors. IC Role / Device Role / Timing Role: Single-line ESD clamp on LIN bus line, mounted adjacent to LIN transceiver input to suppress contact discharge. Use Value: Enables compliance with ISO 10605 (25 kV air, 15 kV contact) without degrading 20 kbps data timing due to low 8.5 pF capacitance. |
| FlexRay Bus Protection | SENT Interface Protection |
|
Use Scenario: Protection of FlexRay communication lines in chassis domain ECUs subject to high-energy transients during vehicle startup/shutdown. IC Role / Device Role / Timing Role: Standalone bidirectional TVS on each FlexRay channel (A/B), placed before common-mode choke to limit surge-induced common-mode voltage. Use Value: Withstands 3 A, 8/20 µs surge (IEC 61000-4-5) and clamps to ≤53 V, preserving FlexRay PHY's 5.5 V supply margin. |
Use Scenario: ESD safeguard for SENT sensor interface lines (e.g., pressure or temperature sensors) routed through engine bay harnesses. IC Role / Device Role / Timing Role: Low-capacitance clamp on SENT data line, positioned at sensor connector to prevent ESD-induced bit errors or reset events. Use Value: Sub-11 pF capacitance avoids pulse-width distortion in SENT's 5–30 µs pulse encoding, ensuring accurate sensor data decoding. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESD5Z3.3T5G (ON Semiconductor) | Lower VRWM (3.3 V), higher Cd (15 pF), unidirectional - requires external biasing for bidirectional protection. | Only suitable for low-voltage digital I/O (e.g., microcontroller GPIO), not automotive bus lines. | Select only if protecting 3.3 V logic signals; not drop-in for CAN/LIN due to voltage rating mismatch and asymmetry. |
| TPD2E001DRYR (Texas Instruments) | 2-channel array, 10 pF per line, 12 V VRWM - designed for USB/low-speed data, not AEC-Q101 qualified. | Targeted at consumer electronics; lacks automotive temperature range and surge rating. | Use only in non-automotive, commercial-grade designs; insufficient for ISO 16750 or AEC-Q101 compliance. |
Compared with ESD5Z3.3T5G and TPD2E001DRYR, PESD1IVN-UX uniquely combines AEC-Q101 qualification, 26.5 V standoff, bidirectional symmetry, and sub-11 pF capacitance - making it the only validated solution for single-line CAN/LIN/FlexRay/SENT protection in production automotive ECUs.
Availability
PESD1IVN-UX is available at Aetrix Electronics and suitable for automotive ECU design, in-vehicle network module production, and Tier-1 supplier BOMs requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for PESD1IVN-UX 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 leadership in automotive-grade components and advanced packaging.
PESD1IVN-UX belongs to Nexperia's Automotive ESD Protection Diode product line, engineered specifically for robust, low-capacitance transient suppression on high-speed in-vehicle networks including CAN, LIN, FlexRay, and SENT.
FAQ
What is the maximum operating temperature for PESD1IVN-UX?
The PESD1IVN-UX is rated for junction temperatures up to 150 °C and ambient operating temperatures from –55 °C to +150 °C, fully compliant with AEC-Q101 thermal cycling and high-temperature operating life requirements for under-hood automotive applications.
Can PESD1IVN-UX protect both CANH and CANL simultaneously?
No - PESD1IVN-UX protects only one line. For full CAN differential pair protection, two devices are required: one on CANH and one on CANL. Each device connects between its respective line and ground, using Pins 1 and 3 as cathodes and Pin 2 left unconnected.
Is the 26.5 V VRWM sufficient for 24 V automotive systems?
Yes - the 26.5 V VRWM exceeds typical 24 V system transients (e.g., ISO 16750-2 load dump peaks at 35 V but is clamped upstream). It ensures zero leakage during nominal 12/24 V bus operation while allowing clean clamping above 28 V breakdown.
Why is Pin 2 marked "n.c." and how should it be handled on the PCB?
Pin 2 is internally unconnected and must remain unconnected on the PCB layout. Routing or soldering to Pin 2 creates parasitic coupling and may compromise ESD performance. The SOT323 footprint must assign Pin 2 to a non-plated or isolated pad per Nexperia's recommended land pattern.
PESD1IVN-UX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Package/Case:
- SC-70, SOT-323
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 26.5V (Max)
- Voltage - Breakdown (Min):
- 28V
- Voltage - Clamping (Max) @ Ipp:
- 53V
- Current - Peak Pulse (10/1000µs):
- 3A (8/20µs)
- Power - Peak Pulse:
- 150W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 8.5pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
PESD1IVN-UX FAQ
1.How can I place an order for PESD1IVN-UX through Aetrix?
Please submit a Request for Quotation (RFQ) for PESD1IVN-UX 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 PESD1IVN-UX reliable?
The price and inventory of PESD1IVN-UX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PESD1IVN-UX is usually 5 days.
3.What payment methods are accepted for PESD1IVN-UX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PESD1IVN-UX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PESD1IVN-UX?
PESD1IVN-UX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PESD1IVN-UX 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 PESD1IVN-UX?
For technical support, including PESD1IVN-UX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PESD1IVN-UX requirements.
6.How does Aetrix verify that PESD1IVN-UX is sourced from the original manufacturer or authorized distributors?
All PESD1IVN-UX 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 PESD1IVN-UX meets industry standards.
7.What is the process for return or replacement of PESD1IVN-UX?
All PESD1IVN-UX units undergo pre-shipment inspection (PSI). If there is an issue with PESD1IVN-UX, 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 PESD1IVN-UX part is unused and in its original packaging.
Return procedure for PESD1IVN-UX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PESD1IVN-UX Tags
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Diodes Incorporated
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Nexperia USA Inc.
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