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Nexperia USA Inc. PESD2CANFD24LT-QR
- Part No.:
- PESD2CANFD24LT-QR
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PESD2CANFD24LT-QR.pdf
- Description:
- AUTOMOTIVE IN-VEHICLE NETWORK PR
- Quantity:
- Payment:
- Shipping:
Inventory:575
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Product details
Overview
PESD2CANFD24LT-QR from Nexperia is a dual-channel automotive-grade ESD protection diode in SOT23 package, designed for bidirectional transient suppression on CAN-FD and CAN bus lines. It delivers 24 V reverse standoff voltage, 30 V clamping at 1 A, 10 pF capacitance, 30 kV IEC 61000-4-2 ESD immunity, and operates up to 175 °C junction temperature - enabling robust protection in engine bay and ADAS communication interfaces.
For engineers reviewing the PESD2CANFD24LT-QR datasheet, PESD2CANFD24LT-QR pinout, PESD2CANFD24LT-QR application, or PESD2CANFD24LT-QR equivalent, this device is selected specifically for high-speed, low-capacitance ESD hardening of differential automotive serial buses where signal integrity and AEC-Q101 compliance are mandatory.
Technical Context
This dual-cathode TVS diode integrates two identical unidirectional protection paths (K1→CC and K2→CC) sharing a common cathode terminal, forming a symmetric clamp configuration ideal for differential bus lines. Its 10 pF capacitance per channel ensures minimal signal distortion on CAN-FD data rates up to 5 Mbps.
The device uses silicon avalanche technology with dynamic resistance of 0.5 Ω and is characterized under both IEC 61000-4-2 (30 kV contact) and ISO 10605 (30 kV, 150 pF/330 Ω) test conditions, with clamping validated at 8/20 µs surge waveforms per IEC 61000-4-5.
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 swing), preserving signal fidelity. |
| Clamping Voltage | 30 V at 1 A (8/20 µs) - Limits transients to safe levels below CAN transceiver absolute max ratings (typically 40–45 V). |
| Diode Capacitance | 10 pF - Enables use on 5 Mbps CAN-FD buses without measurable rise-time degradation or bit error rate impact. |
| ESD Withstand | 30 kV per IEC 61000-4-2 and ISO 10605 - Meets OEM-level ESD immunity requirements for exterior connectors and harness interfaces. |
| Junction Temperature | 175 °C - Supports placement near powertrain ECUs, battery management units, and under-hood modules without derating. |
| Peak Pulse Current | 4 A (8/20 µs) - Handles repetitive surges from load dump coupling or inductive switching in 12 V vehicle networks. |
| Leakage Current | 1 nA at 24 V - Prevents bus loading and voltage droop in low-power sleep modes (<100 µA standby current systems). |
Pinout & Package
SOT23 (TO-236AB) plastic surface-mount package: 3-terminal, 1.9 mm pitch, 2.9 mm × 1.3 mm × 1.0 mm body. RoHS-compliant, halogen-free, qualified per AEC-Q101.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K1) | Cathode of Diode 1 | Connects to CANH or FlexRay CH+ line; forms first ESD path to common cathode. |
| 2 (K2) | Cathode of Diode 2 | Connects to CANL or FlexRay CH− line; enables symmetrical clamping on differential pair. |
| 3 (CC) | Common Cathode | Connected to chassis or local ground plane; serves as shared return for both protection paths. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-channel architecture | Independent protection for CANH/CANL or CH+/CH− with matched 10 pF capacitance ensures balanced signal integrity. |
| AEC-Q101 qualification | Validated for automotive use across −55 °C to +175 °C ambient, including temperature cycling, HTRB, and ESD stress tests. |
| Ultra-low dynamic resistance | 0.5 Ω measured via TLP - minimizes voltage overshoot during fast ESD events (<1 ns rise time). |
| Common-cathode topology | Reduces PCB footprint vs. discrete dual-diode solutions and eliminates need for separate ground traces per channel. |
| Low leakage at VRWM | 1 nA max at 24 V - avoids false wake-up in CAN FD low-power sleep states and preserves bus bias stability. |
Applications
| Automotive CAN-FD Bus Protection | FlexRay Communication Interface |
|---|---|
|
Use Scenario: Protecting high-speed CAN-FD nodes in ADAS domain controllers and gateway ECUs exposed to connector-level ESD. IC Role / Device Role / Timing Role: Bidirectional transient voltage suppressor placed between CAN transceiver I/O pins and vehicle harness connector. Use Value: Maintains 5 Mbps data integrity while clamping 8 kV contact ESD pulses to ≤30 V, preventing transceiver latch-up or damage. |
Use Scenario: Hardening FlexRay physical layer in powertrain control modules subject to under-hood EMI and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance ESD clamp on CH+/CH− differential pair, mounted adjacent to FlexRay transceiver output pins. Use Value: 10 pF capacitance avoids skew between channels; 30 kV ISO 10605 rating meets OEM FlexRay interface immunity specs. |
| SENT Sensor Interface Protection | Automotive Body Control Module Bus |
|
Use Scenario: Safeguarding SENT (Single Edge Nibble Transmission) sensor inputs in engine management systems against harness-induced transients. IC Role / Device Role / Timing Role: Unidirectional ESD shunt on SENT signal line (pin 1 → CC) and supply rail (pin 2 → CC) using shared cathode. Use Value: 24 V VRWM aligns with 5 V SENT supply rails; sub-1 nA leakage prevents interference with 12-bit analog sensor resolution. |
Use Scenario: Protecting LIN/CAN mixed-bus gateways in body control modules connected to door modules and lighting nodes. IC Role / Device Role / Timing Role: Dual-line protector on CAN-LIN bridge IC's bus I/O, placed within 3 mm of connector entry point. Use Value: Common-cathode layout simplifies grounding; 175 °C rating supports placement in thermally constrained BCM housings. |
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 capacitance, 30 kV ESD rating, SOT-23 package | Lower standoff voltage limits use to 12 V nominal buses only; higher capacitance reduces margin for >2 Mbps CAN-FD. | Select when cost sensitivity outweighs 24 V margin and 5 Mbps timing headroom. |
| Vishay VEML6040-GS08 | 24 V VRWM, 8 pF capacitance, 25 kV ESD rating, SC-70 package | Smaller SC-70 footprint but lower ESD rating; not AEC-Q101 qualified - requires additional validation for automotive use. | Choose only for non-safety-critical infotainment subsystems where space is constrained and full AEC-Q101 is not mandated. |
Compared with NUF2221MUTAG and VEML6040-GS08, PESD2CANFD24LT-QR uniquely combines 24 V standoff, 10 pF capacitance, 30 kV ESD, and AEC-Q101 qualification in SOT23 - making it the only drop-in solution for production CAN-FD gateways requiring zero design requalification.
Availability
PESD2CANFD24LT-QR is available at Aetrix Electronics and suitable for automotive CAN-FD gateways, FlexRay powertrain modules, SENT-based engine sensors, and body control unit bus interfaces requiring stable component supply across extended temperature and lifecycle demands.
Supply support for PESD2CANFD24LT-QR 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-enhancing components, delivering high-performance, reliable, and scalable devices for automotive, industrial, and consumer markets.
PESD2CANFD24LT-QR belongs to Nexperia's Automotive ESD Protection portfolio, engineered specifically for high-speed serial bus hardening in harsh automotive environments - emphasizing low capacitance, AEC-Q101 reliability, and precise clamping behavior.
FAQ
What is the maximum recommended PCB trace length between PESD2CANFD24LT-QR and the protected CAN connector?
Per Nexperia application guidance, the total trace length from each protected line (CANH/CANL) to its respective K1/K2 pin must not exceed 3 mm, and the CC-to-ground path must be ≤2 mm with direct connection to a solid ground plane. Longer traces increase inductance, degrading clamping response and risking transceiver damage during 1 ns ESD rise times.
Can PESD2CANFD24LT-QR protect both CAN-FD and legacy CAN simultaneously on the same physical bus?
Yes - its 24 V VRWM and 30 V clamping are compatible with both legacy CAN (dominant recessive swing ±12 V) and CAN-FD (identical physical layer). The dual-channel structure protects the differential pair without affecting bus termination or common-mode voltage range, and has been validated in ISO 11898-2/3 compliant test setups.
Is the common cathode (pin 3) required to connect directly to chassis ground or can it tie to signal ground?
Pin 3 must connect to the lowest-impedance ground reference available - typically the main chassis ground plane or dedicated low-inductance ground pour beneath the device. Signal ground connections introduce impedance that raises clamping voltage; Nexperia specifies ≤20 mΩ impedance from CC to ground plane to achieve rated 30 V clamping at 1 A.
Does PESD2CANFD24LT-QR require external series resistors or RC filters for optimal performance?
No - the device is designed for direct placement between transceiver and connector without external components. Adding series resistance degrades ESD response speed and increases clamping voltage; RC filtering introduces signal distortion. Layout adherence (short traces, ground plane, no stubs) is the sole requirement per Nexperia's AN11520 application note.
PESD2CANFD24LT-QR 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):
- 25.5V
- Voltage - Clamping (Max) @ Ipp:
- 41V
- Current - Peak Pulse (10/1000µs):
- 4A (8/20µs)
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- CAN
- Capacitance @ Frequency:
- 9pF @ 1MHz
- Operating Temperature:
- -55°C ~ 175°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
PESD2CANFD24LT-QR FAQ
1.How can I place an order for PESD2CANFD24LT-QR through Aetrix?
Please submit a Request for Quotation (RFQ) for PESD2CANFD24LT-QR 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 PESD2CANFD24LT-QR reliable?
The price and inventory of PESD2CANFD24LT-QR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PESD2CANFD24LT-QR is usually 5 days.
3.What payment methods are accepted for PESD2CANFD24LT-QR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PESD2CANFD24LT-QR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PESD2CANFD24LT-QR?
PESD2CANFD24LT-QR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PESD2CANFD24LT-QR 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 PESD2CANFD24LT-QR?
For technical support, including PESD2CANFD24LT-QR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PESD2CANFD24LT-QR requirements.
6.How does Aetrix verify that PESD2CANFD24LT-QR is sourced from the original manufacturer or authorized distributors?
All PESD2CANFD24LT-QR 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 PESD2CANFD24LT-QR meets industry standards.
7.What is the process for return or replacement of PESD2CANFD24LT-QR?
All PESD2CANFD24LT-QR units undergo pre-shipment inspection (PSI). If there is an issue with PESD2CANFD24LT-QR, 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 PESD2CANFD24LT-QR part is unused and in its original packaging.
Return procedure for PESD2CANFD24LT-QR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PESD2CANFD24LT-QR 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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