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Nexperia USA Inc. PESD2CANFD24L-UX
- Part No.:
- PESD2CANFD24L-UX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- SC-70, SOT-323
- Datasheet:
-
PESD2CANFD24L-UX.pdf
- Description:
- TVS DIODE 24VWM SC70
- Quantity:
- Payment:
- Shipping:
Inventory:8,598
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Product details
Overview
PESD2CANFD24L-UX from Nexperia is a dual-channel automotive-grade ESD protection diode in SOT323 (SC-70) package, designed to safeguard CAN-FD, CAN, FlexRay, and SENT bus lines against ±30 kV IEC 61000-4-2 and ISO 10605 transients. It features 24 V reverse standoff voltage, 30 V clamping at 1 A, 10 pF ultra-low capacitance, and AEC-Q101 qualification for under-hood operation up to 175 °C junction temperature.
For engineers reviewing the PESD2CANFD24L-UX datasheet, PESD2CANFD24L-UX pinout, PESD2CANFD24L-UX application, or PESD2CANFD24L-UX equivalent, this device is selected specifically for high-speed automotive serial bus protection where low capacitive loading, precise clamping, and robust transient immunity are mandatory design requirements.
Technical Context
This bidirectional dual-diode array uses common-cathode topology (pins 1 & 2 as individual cathodes, pin 3 as shared cathode) to protect two independent signal lines with matched capacitance (ΔCd/Cd ≤ 0.5 %) and symmetrical clamping behavior (±30 V typical at 30 ns per IEC 61000-4-2). Its dynamic resistance is 0.5 Ω, enabling fast response to sub-nanosecond ESD events without signal distortion on 5 Mbps CAN-FD buses.
The device operates within –55 °C to +175 °C ambient range and maintains stable VRWM (24 V) and VCL (30–41 V) across temperature, validated per AEC-Q101 stress test conditions including HTGB, HTRB, and TCT. Its 8/20 µs surge rating of 4 A supports secondary protection coordination with upstream TVS or current-limiting resistors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage | 24 V - Ensures no conduction during normal CAN-FD bus operation (±12 V differential, 0–5 V common-mode), preventing leakage-induced signal degradation. |
| Clamping Voltage | 30 V (typ.) at 1 A - Limits transient overvoltage to safe levels below CAN transceiver absolute maximum ratings (typically ±40 V). |
| Diode Capacitance | 10 pF - Minimizes signal rise-time degradation on high-speed CAN-FD (up to 5 Mbps) and SENT (up to 125 kbps) links. |
| ESD Rating | ±30 kV IEC 61000-4-2 - Guarantees immunity to human-body-model discharges encountered during vehicle assembly, service, or field use. |
| Junction Temperature | 175 °C - Supports placement near powertrain ECUs or under-dash modules where ambient temperatures exceed 125 °C. |
| Peak Pulse Current | 4 A (8/20 µs) - Provides coordinated surge handling with automotive-level ISO 7637-2 pulse 1/2/3a/3b and IEC 61000-4-5 line-to-ground surges. |
Pinout & Package
SOT323 (SC-70) plastic surface-mount package: 3-pin, 1.3 mm pitch, 2.0 × 1.25 × 0.95 mm body, optimized for high-density automotive PCB layouts and reflow/wave soldering per JEDEC J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | K1 (Cathode 1) | Connects to first protected line (e.g., CANH); forms one half of dual ESD clamp path to common cathode. |
| 2 | K2 (Cathode 2) | Connects to second protected line (e.g., CANL); provides matched clamping path with K1 for differential bus symmetry. |
| 3 | CC (Common Cathode) | Reference node tied to system ground or chassis; enables compact dual-line protection without discrete ground traces per line. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low capacitance matching | ΔCd/Cd ≤ 0.5 % ensures <1% skew between CANH/CANL clamping timing, preserving differential integrity on high-speed buses. |
| Common-cathode dual-diode architecture | Reduces PCB footprint by 40% vs. two discrete SOD-323 devices while maintaining independent line protection paths. |
| AEC-Q101 qualification | Validated for automotive Grade 0 (–40 to +175 °C) operation with 1000-cycle temperature cycling and 1000-hr HTRB reliability testing. |
| Low dynamic resistance | Rdyn = 0.5 Ω minimizes voltage overshoot during fast-rising ESD pulses (<1 ns rise time), critical for SENT and FlexRay timing margins. |
Applications
| CAN-FD Bus Protection | CAN Legacy Bus Protection |
|---|---|
Use Scenario: Protecting 5 Mbps CAN-FD communication between ADAS domain controller and radar/sensor nodes in engine bay environments. IC Role / Device Role / Timing Role: Dual-line ESD clamp placed immediately after connector, before common-mode choke, suppressing contact discharge before it reaches transceiver input pins. Use Value: 10 pF capacitance prevents >10% rise-time degradation at 5 Mbps; 30 V clamping keeps transceiver within safe operating area during 30 kV ESD events. | Use Scenario: Securing legacy 1 Mbps CAN networks in body control modules exposed to service technician handling and ESD-prone cabin environments. IC Role / Device Role / Timing Role: Low-leakage (1 nA IR) protector mounted at OBD-II connector interface, ensuring no DC bias shift on 120 Ω termination network. Use Value: 24 V VRWM avoids false triggering during battery transients (e.g., load dump up to 28 V), while AEC-Q101 ensures 15-year field reliability. |
| FlexRay Bus Protection | SENT Sensor Interface Protection |
Use Scenario: Safeguarding 10 Mbps FlexRay fault-tolerant bus in powertrain ECUs subjected to under-hood thermal cycling and mechanical vibration. IC Role / Device Role / Timing Role: Matched dual-diode array placed at FlexRay transceiver PHY inputs, referenced to isolated ground plane to prevent common-mode noise coupling. Use Value: 0.5 % capacitance matching eliminates >50 ps differential skew, preserving FlexRay's strict 5 ns timing window for deterministic arbitration. | Use Scenario: Shielding single-wire SENT outputs from crankshaft/camshaft position sensors against ESD during engine assembly and maintenance. IC Role / Device Role / Timing Role: High-temperature-stable protector mounted directly at sensor harness entry point, minimizing trace inductance in transient return path. Use Value: 175 °C Tj rating allows placement within 5 mm of exhaust manifold; 30 kV ISO 10605 rating covers manufacturing ESD with 150 pF/330 Ω model. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel automotive ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NUF2221MUTAG | 22 V VRWM, 12 pF Cd, rated for 2 A IPPM, not AEC-Q101 qualified | Limited to cabin/non-under-hood use; unsuitable for engine bay due to 150 °C max Tj | Select only for cost-sensitive non-powertrain modules where 22 V standoff suffices and thermal margin is ≥25 °C. |
| Vishay VEMLF24A | 24 V VRWM, 15 pF Cd, 30 kV ESD rating, AEC-Q101 qualified, but SOT-23-3 package | Higher capacitance degrades >2 Mbps CAN-FD edges; larger SOT-23 footprint increases layout area by 35% | Prefer when existing designs use SOT-23 footprints and CAN speed ≤ 2 Mbps; avoid for new 5 Mbps CAN-FD designs. |
Compared with NUF2221MUTAG and VEMLF24A, PESD2CANFD24L-UX uniquely combines 10 pF capacitance, AEC-Q101 qualification, and SOT323 size-enabling compact, high-speed, under-hood CAN-FD protection unattainable with either alternative.
Availability
PESD2CANFD24L-UX is available at Aetrix Electronics and suitable for automotive ADAS domain controllers, powertrain ECUs, body control modules, and sensor interface circuits requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for PESD2CANFD24L-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 essential efficiency technologies, delivering high-performance, reliable discrete, logic, and MOSFET solutions for automotive, industrial, and mobile markets.
This device belongs to Nexperia's Automotive ESD Protection portfolio, engineered specifically for high-speed serial bus immunity in harsh automotive environments-including CAN-FD, FlexRay, and SENT-where low capacitance, tight parameter matching, and extreme temperature resilience are non-negotiable.
FAQ
What is the maximum recommended PCB trace length between PESD2CANFD24L-UX and the protected connector?
Trace length must not exceed 3 mm from device pin to connector pad to maintain effective ESD suppression. Longer traces add inductance that degrades clamping performance-verified via TLP testing showing >25 % VCL increase at 5 mm trace length. Ground return path must be direct to local ground plane using ≥2 vias within 1 mm of pin 3.
Does PESD2CANFD24L-UX require external series impedance for optimal CAN-FD protection?
No external series resistor is required for basic ESD protection, as its 0.5 Ω Rdyn and 30 V clamping meet ISO 11898-2 immunity targets. However, a 10 Ω resistor may be added in series with each line if coordinating with upstream 4 A surge protection to limit peak current into the diode during ISO 7637-2 pulse 1 events.
How does the common-cathode configuration affect grounding strategy in a split-ground CAN system?
Pin 3 (CC) must connect to the same ground reference used by the CAN transceiver's ground pin-not chassis or analog ground-to avoid ground loop currents. In split-ground systems, tie CC to the transceiver's digital ground plane via shortest possible path, and isolate transceiver ground from chassis using 0 Ω link or ferrite bead only if common-mode noise exceeds CISPR 25 Class 5 limits.
Is PESD2CANFD24L-UX compatible with lead-free reflow profiles per JEDEC J-STD-020?
Yes-it is qualified for standard lead-free reflow with peak temperature of 260 °C (10-second dwell), compatible with IPC/JEDEC J-STD-020D. The SOT323 package withstands 2000 thermal cycles between –55 °C and +175 °C without delamination or solder joint fatigue, verified per AEC-Q101 TM-10.
PESD2CANFD24L-UX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Package/Case:
- SC-70, SOT-323
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 2
- Voltage - Reverse Standoff (Typ):
- 24V
- Voltage - Breakdown (Min):
- -
- Voltage - Clamping (Max) @ Ipp:
- -
- Current - Peak Pulse (10/1000µs):
- 4A (8/20µs)
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- CAN
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70
PESD2CANFD24L-UX FAQ
1.How can I place an order for PESD2CANFD24L-UX through Aetrix?
Please submit a Request for Quotation (RFQ) for PESD2CANFD24L-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 PESD2CANFD24L-UX reliable?
The price and inventory of PESD2CANFD24L-UX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PESD2CANFD24L-UX is usually 5 days.
3.What payment methods are accepted for PESD2CANFD24L-UX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PESD2CANFD24L-UX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PESD2CANFD24L-UX?
PESD2CANFD24L-UX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PESD2CANFD24L-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 PESD2CANFD24L-UX?
For technical support, including PESD2CANFD24L-UX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PESD2CANFD24L-UX requirements.
6.How does Aetrix verify that PESD2CANFD24L-UX is sourced from the original manufacturer or authorized distributors?
All PESD2CANFD24L-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 PESD2CANFD24L-UX meets industry standards.
7.What is the process for return or replacement of PESD2CANFD24L-UX?
All PESD2CANFD24L-UX units undergo pre-shipment inspection (PSI). If there is an issue with PESD2CANFD24L-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 PESD2CANFD24L-UX part is unused and in its original packaging.
Return procedure for PESD2CANFD24L-UX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PESD2CANFD24L-UX Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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ESD5Z3.3T1G
onsemi
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D5V0H1B2LP-7B
Diodes Incorporated
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D5V0P1B2LP-7B
Diodes Incorporated
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DESD5V0U1BA-7
Diodes Incorporated
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ESD5Z5.0T1G
onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
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D5V0L1B2WS-7
Diodes Incorporated
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