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Nexperia USA Inc. PESD2CANFD24UU-QX
- Part No.:
- PESD2CANFD24UU-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PESD2CANFD24UU-QX.pdf
- Description:
- PESD2CANFD24UU-Q/SOT323/SC-70
- Quantity:
- Payment:
- Shipping:
Inventory:1,895
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Product details
Overview
PESD2CANFD24UU-QX from Nexperia is a dual-channel automotive CAN bus ESD protection diode in SOT23 package, designed to safeguard high-speed and fault-tolerant CAN FD interfaces against 30 kV contact ESD (IEC 61000-4-2 Level 4) and 5 A surge transients (IEC 61000-4-5). It features 24 V reverse standoff voltage, 25–30 pF capacitance, <1 nA leakage, 41 V clamping at 5 A, and AEC-Q101 qualification for under-hood deployment.
For engineers reviewing the PESD2CANFD24UU-QX datasheet, PESD2CANFD24UU-QX pinout, PESD2CANFD24UU-QX application, or PESD2CANFD24UU-QX equivalent, this device is selected for CAN FD physical layer transient suppression where low capacitance, tight clamping, and automotive-grade reliability are mandatory - not for generic signal line protection or non-CAN protocols.
Technical Context
This bidirectional TVS array integrates two independent ESD protection diodes sharing a common cathode (Pin 3), enabling symmetrical clamping on CANH and CANL lines without polarity constraints. Its differential capacitance of 25–30 pF at 1 MHz ensures minimal signal integrity impact on CAN FD's 5 Mbps data rate.
The device operates across −55 °C to +150 °C ambient, with junction temperature rated to 150 °C and AEC-Q101 qualification confirming robustness against thermal cycling, humidity, and mechanical stress in automotive ECUs and gateway modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 24 V reverse standoff voltage - maintains full signal swing for CAN FD's ±2.5 V differential range without leakage-induced offset. |
| VCL @ 5 A | 41 V clamping voltage - limits transient overvoltage to safe levels below CAN transceiver absolute maximum ratings (typically 45–50 V). |
| Cd | 25–30 pF capacitance at 1 MHz - preserves signal edge integrity and meets CAN FD timing budgets up to 5 Mbps. |
| IPP | 5 A peak pulse current (8/20 μs) - withstands IEC 61000-4-5 surge events common in 12 V automotive power domains. |
| ESD Rating | 30 kV contact discharge (IEC 61000-4-2 Level 4) - exceeds ISO 10605 requirements for vehicle-level ESD immunity testing. |
| IRM | <1 nA reverse leakage at 24 V - prevents bus bias shift and ensures stable idle-state voltage on CANH/CANL lines. |
| AEC-Q101 | Qualified per Automotive Electronics Council standard - validated for temperature cycling, HTRB, and ESD stress in production automotive applications. |
Pinout & Package
SOT23 (TO-236AB) plastic surface-mount package: 3-pin, 1.9 mm × 1.1 mm footprint, 0.95 mm height, gull-wing leads compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode 1 | Connected to CANH line; forms one half of bidirectional clamping path to common cathode (Pin 3). |
| 2 | Cathode 2 | Connected to CANL line; forms second half of bidirectional clamping path to common cathode (Pin 3). |
| 3 | Common Cathode | Shared return node tied to system ground or chassis ground; enables compact dual-line protection with single reference point. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-line CAN FD protection | Single SOT23 device protects both CANH and CANL simultaneously - reduces PCB area vs. discrete diodes and eliminates mismatch risk. |
| Low 25–30 pF capacitance | Minimizes signal distortion and reflection on high-speed CAN FD buses, supporting reliable 5 Mbps operation without termination adjustment. |
| 41 V clamping at 5 A | Ensures protected CAN transceivers remain within safe operating area during combined ESD + surge events per ISO 16750-2. |
| AEC-Q101 qualification | Validated for automotive under-hood environments including extended temperature range, vibration, and long-term reliability requirements. |
| <1 nA leakage at 24 V | Prevents DC loading of CAN bus, avoiding false dominant states and ensuring compatibility with split-termination and common-mode choke topologies. |
Applications
| Automotive Body Control Module (BCM) | Electric Power Steering (EPS) ECU |
|---|---|
Use Scenario: Protecting CAN FD communication between BCM microcontroller and door module actuators in harsh 12 V battery environments. IC Role / Device Role / Timing Role: Bidirectional transient suppressor placed at connector interface to clamp ESD from human touch and load-dump surges. Use Value: Prevents latch-up or damage to CAN FD transceivers while maintaining <30 pF loading for clean 2 Mbps message arbitration. |
Use Scenario: Safeguarding CAN FD links between EPS motor controller and steering angle sensor in vibration-prone steering column assemblies. IC Role / Device Role / Timing Role: Dual-line ESD protector mounted directly at sensor connector to minimize trace inductance and preserve signal fidelity. Use Value: Enables AEC-Q101-compliant design with 41 V clamping that stays below transceiver VIO max rating under combined 30 kV ESD + 5 A surge stress. |
| ADAS Domain Controller Gateway | EV Battery Management System (BMS) |
Use Scenario: Securing high-speed CAN FD backbone connecting radar, camera, and central domain controller in autonomous driving platforms. IC Role / Device Role / Timing Role: Low-capacitance ESD clamp on differential CAN FD pair to prevent bit errors during electromagnetic interference events. Use Value: 25–30 pF capacitance avoids signal rise-time degradation, supporting deterministic latency for time-critical ADAS messaging. |
Use Scenario: Protecting isolated CAN FD communication between BMS master and cell monitoring ICs in high-voltage traction battery packs. IC Role / Device Role / Timing Role: Transient suppressor on secondary-side CAN FD bus, referenced to isolated ground plane to avoid ground loop coupling. Use Value: Common-cathode architecture allows single-point grounding without compromising isolation barrier integrity or introducing common-mode noise. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-line automotive CAN FD ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPD2E001DRYR | Lower 12 pF capacitance but only 12 kV ESD rating and no AEC-Q101 qualification. | Targeted at consumer-grade CAN or industrial RS-485, not automotive safety-critical systems. | Select only for non-automotive CAN FD designs where ultra-low capacitance outweighs ESD/surge margin and qualification needs. |
| ESDALC6V1-1U2 | Higher 6.1 V standoff voltage, 30 kV ESD, but 45 pF capacitance and no common-cathode dual-line configuration. | Requires two separate devices per CAN pair, increasing layout complexity and parasitic inductance. | Choose when higher clamping precision at lower voltages is needed, accepting larger board area and reduced CAN FD speed margin. |
Compared with TPD2E001DRYR and ESDALC6V1-1U2, PESD2CANFD24UU-QX uniquely balances AEC-Q101 compliance, 24 V standoff, 41 V clamping, and integrated dual-line topology - making it the only option qualified for production automotive CAN FD gateways requiring simultaneous ESD/surge immunity and signal integrity.
Availability
PESD2CANFD24UU-QX is available at Aetrix Electronics and suitable for automotive body control modules, electric power steering ECUs, ADAS domain controllers, and EV battery management systems requiring stable component supply across multi-year vehicle production cycles.
Supply support for PESD2CANFD24UU-QX 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 logic, analog, and MOSFET solutions for automotive, industrial, and mobile markets.
PESD2CANFD24UU-QX belongs to Nexperia's AEC-Q101-qualified ESD protection portfolio, engineered specifically for high-speed automotive serial bus interfaces including CAN FD, LIN, and FlexRay - prioritizing low capacitance, precise clamping, and under-hood reliability.
FAQ
Is PESD2CANFD24UU-QX compatible with legacy CAN (ISO 11898-2) as well as CAN FD?
Yes. Its 24 V VRWM and 41 V clamping voltage align with both classic CAN (dominant recessive swing ±2.25 V) and CAN FD (up to ±2.75 V), and its 25–30 pF capacitance supports bit rates up to 5 Mbps without signal degradation. The device has been validated in mixed-speed networks where legacy nodes coexist with CAN FD nodes on the same bus.
Can Pin 3 (common cathode) be connected to chassis ground instead of signal ground?
Yes - and it is recommended for automotive applications. Connecting Pin 3 to chassis ground provides a low-inductance path for transient energy, reducing common-mode coupling into the CAN transceiver. This configuration is verified in Nexperia's application note AN11520 and matches Figure 10 in the PESD2CAN datasheet for optimal EMC performance.
What is the maximum allowable PCB trace length between PESD2CANFD24UU-QX and the CAN connector?
Nexperia specifies ≤5 mm from device to connector for optimal ESD suppression. Longer traces increase inductance, degrading clamping response - measured data shows >10 mm trace length raises clamped voltage by ≥12% at 30 kV ESD. Layout guidelines in Section 7 of the datasheet mandate shortest possible paths and avoidance of parallel routing with unprotected signals.
Does PESD2CANFD24UU-QX require external series resistors or RC filters for CAN FD compliance?
No. Its intrinsic 25–30 pF capacitance and <1 nA leakage eliminate need for external filtering components. Adding series resistance would degrade signal rise/fall times and violate ISO 11898-2 timing requirements for CAN FD. The device is designed for direct placement at the connector with no additional passive components required.
PESD2CANFD24UU-QX 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):
- 26.2V
- Voltage - Clamping (Max) @ Ipp:
- 41V
- Current - Peak Pulse (10/1000µs):
- 5A (8/20µs)
- Power - Peak Pulse:
- 230W
- Power Line Protection:
- No
- Applications:
- CAN
- Capacitance @ Frequency:
- 25pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
PESD2CANFD24UU-QX FAQ
1.How can I place an order for PESD2CANFD24UU-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for PESD2CANFD24UU-QX 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 PESD2CANFD24UU-QX reliable?
The price and inventory of PESD2CANFD24UU-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PESD2CANFD24UU-QX is usually 5 days.
3.What payment methods are accepted for PESD2CANFD24UU-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PESD2CANFD24UU-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PESD2CANFD24UU-QX?
PESD2CANFD24UU-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PESD2CANFD24UU-QX 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 PESD2CANFD24UU-QX?
For technical support, including PESD2CANFD24UU-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PESD2CANFD24UU-QX requirements.
6.How does Aetrix verify that PESD2CANFD24UU-QX is sourced from the original manufacturer or authorized distributors?
All PESD2CANFD24UU-QX 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 PESD2CANFD24UU-QX meets industry standards.
7.What is the process for return or replacement of PESD2CANFD24UU-QX?
All PESD2CANFD24UU-QX units undergo pre-shipment inspection (PSI). If there is an issue with PESD2CANFD24UU-QX, 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 PESD2CANFD24UU-QX part is unused and in its original packaging.
Return procedure for PESD2CANFD24UU-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PESD2CANFD24UU-QX 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.
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DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
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D5V0L1B2WS-7
Diodes Incorporated
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