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Nexperia USA Inc. PESD2CAN24XLT-QR
- Part No.:
- PESD2CAN24XLT-QR
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- -
- Datasheet:
-
PESD2CAN24XLT-QR.pdf
- Description:
- PESD2CAN24XLT-Q/SOT23/TO-236AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
PESD2CAN24XLT-QR from Nexperia is a dual-channel automotive-grade ESD protection diode in SOT23 package, designed to safeguard CAN bus lines against 30 kV IEC 61000-4-2 and ISO 10605 ESD events, 12 A IEC 61000-4-5 surge pulses, and ISO 7637-2 transients (±150 V / −220 V), with 24 V reverse standoff voltage and 31 pF capacitance for minimal signal distortion in high-speed CAN FD networks.
For engineers reviewing the PESD2CAN24XLT-QR datasheet, PESD2CAN24XLT-QR pinout, PESD2CAN24XLT-QR application, or PESD2CAN24XLT-QR equivalent, key selection criteria include clamping voltage under 12 A surge (33 V), matched diode capacitance (<0.5% ΔCd/Cd), AEC-Q101 qualification, and common-cathode dual-diode topology optimized for differential CANH/CANL line protection.
Technical Context
This bidirectional ESD protection device implements two independent avalanche diodes sharing a common cathode (Pin 3), enabling symmetrical transient suppression on both CANH and CANL lines without polarity constraints. Its low dynamic resistance (0.12 Ω) ensures rapid voltage clamping during 100 ns TLP pulses, while the 31 pF typical capacitance at 1 MHz and 0 V bias preserves signal integrity up to 5 Mbps CAN FD data rates.
The device operates within −55 °C to +150 °C ambient range and supports peak pulse currents up to 12 A (8/20 µs waveform), meeting stringent automotive EMC requirements including ISO 7637-2 Pulse 2a (+100 V), Pulse 3a (−220 V), and Pulse 3b (+150 V). Breakdown voltage is specified at 25.5–36 V (10 mA), ensuring reliable conduction only above VRWM = 24 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage (VRWM) | 24 V - Maximum continuous operating voltage before diode conduction begins; sets safe margin below CAN bus common-mode range. |
| Clamping Voltage (VCL) | 33 V at 12 A (8/20 µs) - Peak voltage seen by protected CAN transceiver during worst-case surge; limits stress on downstream IC. |
| ESD Withstand | 30 kV contact discharge (IEC 61000-4-2 & ISO 10605) - Guarantees immunity to human-body-model ESD events in vehicle assembly and service environments. |
| Diode Capacitance (Cd) | 31 pF at 1 MHz, 0 V - Low, matched capacitance minimizes signal rise-time degradation and reflection on 120 Ω CAN differential pair. |
| Surge Current (IPPM) | 12 A (8/20 µs) - Withstands high-energy load-dump and inductive switching transients per IEC 61000-4-5 Level 3. |
| AEC-Q101 Qualification | Qualified - Validated for automotive under temperature cycling, HTRB, UHAST, and ESD stress per AEC standard; enables use in safety-critical ECUs. |
| Dynamic Resistance (Rdyn) | 0.12 Ω - Low impedance during transient conduction ensures fast clamping response and reduced power dissipation in diode junction. |
Pinout & Package
SOT23 plastic surface-mount package (2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm lead pitch); thermally enhanced for PCB-level surge energy dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | K1 (Cathode of Diode 1) | Connects to CANH line; forms one half of dual-diode clamp to common cathode (Pin 3). |
| 2 | K2 (Cathode of Diode 2) | Connects to CANL line; second diode leg referenced to same common cathode (Pin 3) for balanced differential protection. |
| 3 | CC (Common Cathode) | Shared cathode node tied to system ground or chassis ground; establishes reference for bidirectional clamping of both bus lines. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-line CAN bus protection | Single SOT23 device protects both CANH and CANL with matched 31 pF capacitance and <0.5% capacitance mismatch (ΔCd/Cd), preserving differential signaling integrity. |
| Automotive transient compliance | Fully meets ISO 7637-2 Pulse 2a (+100 V), Pulse 3a (−220 V), and Pulse 3b (+150 V), enabling direct integration into gateways, ADAS ECUs, and body control modules. |
| Low clamping with high surge robustness | 33 V clamping at 12 A (8/20 µs) combined with 0.12 Ω dynamic resistance delivers predictable voltage limiting during multi-event surge exposure. |
| High-reliability packaging | SOT23 outline qualified per AEC-Q101 with 150 °C max junction temperature and −55 °C to +150 °C operating range for under-hood deployment. |
| ESD immunity beyond industry standard | 30 kV contact discharge per both IEC 61000-4-2 and ISO 10605 (330 pF/330 Ω), exceeding typical OEM requirements for infotainment and telematics interfaces. |
Applications
| Automotive CAN FD Gateway | ADAS Camera Module Interface |
|---|---|
|
Use Scenario: High-speed CAN FD communication between radar, camera, and domain controller in L2+ autonomous driving systems. IC Role / Device Role / Timing Role: ESD/surge protector placed immediately after CAN connector, before CAN transceiver, to prevent latch-up or damage during vehicle assembly or roadside ESD events. Use Value: 31 pF matched capacitance avoids signal integrity loss at 5 Mbps, while 33 V clamping ensures transceiver I/O remains within absolute maximum ratings during 12 A surges. |
Use Scenario: External camera harness connecting to rear-view or surround-view ECU exposed to repeated static discharge in humid garage environments. IC Role / Device Role / Timing Role: Dual-line transient suppressor mounted at connector entry point, shunting ESD current directly to chassis ground via Pin 3 (CC). Use Value: 30 kV contact discharge rating eliminates field failures from technician handling; common-cathode layout simplifies PCB routing and reduces ground loop area. |
| Electric Powertrain Inverter Control | Vehicle-to-Everything (V2X) OBU |
|
Use Scenario: CAN communication link between battery management system (BMS) and motor inverter in high-voltage EV platforms. IC Role / Device Role / Timing Role: Transient protection element on isolated CAN bus side, rated for operation up to 150 °C ambient near power electronics. Use Value: AEC-Q101 qualification and 150 °C junction rating ensure reliability in under-hood thermal zones; ISO 7637-2 Pulse 3a (−220 V) tolerance prevents false resets during high-dV/dt switching events. |
Use Scenario: DSRC or C-V2X on-board unit communicating with roadside infrastructure via CAN-based diagnostics and firmware update channels. IC Role / Device Role / Timing Role: Front-end ESD guard for externally accessible CAN ports subject to public interaction and environmental electrostatic buildup. Use Value: Dual 30 kV ESD rating (IEC + ISO) provides redundant immunity assurance; low leakage (<50 nA at 24 V) prevents battery drain in always-on V2X modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-line automotive CAN bus ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NUP2114 | Higher clamping voltage (40 V at 12 A), larger SOT-23-3L footprint (3.0 mm × 1.4 mm), 45 pF capacitance. | Less suitable for 5 Mbps CAN FD due to higher capacitance-induced signal distortion; better for legacy 1 Mbps CAN. | Select when cost sensitivity outweighs speed requirement and board space allows larger footprint. |
| Vishay VEML6040 | Not applicable - VEML6040 is an ambient light sensor IC; invalid substitution. | - | Discard - misidentified part; no functional equivalence. |
Compared with NUP2114, PESD2CAN24XLT-QR offers 7 V lower clamping voltage and 14 pF lower capacitance, directly improving CAN FD timing margin and transceiver survivability; the Vishay VEML6040 is unrelated and must not be considered a substitute.
Availability
PESD2CAN24XLT-QR is available at Aetrix Electronics and suitable for automotive CAN FD gateways, ADAS camera modules, electric powertrain inverters, and V2X onboard units requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for PESD2CAN24XLT-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 technologies, delivering high-performance, high-reliability discrete and logic devices for automotive, industrial, and consumer markets.
PESD2CAN24XLT-QR belongs to Nexperia's AEC-Q101-qualified ESD protection portfolio, engineered specifically for robust, low-capacitance transient suppression on high-speed automotive serial buses including CAN, LIN, and FlexRay.
FAQ
What is the maximum operating temperature for PESD2CAN24XLT-QR?
The device supports ambient temperatures from −55 °C to +150 °C and junction temperatures up to +150 °C, validated per AEC-Q101 test conditions including high-temperature reverse bias and temperature cycling. This enables placement near power electronics or under-hood ECUs without derating.
Can PESD2CAN24XLT-QR protect both CANH and CANL simultaneously?
Yes - its internal structure consists of two avalanche diodes with independent anodes (Pins 1 and 2) and a shared cathode (Pin 3), forming a common-cathode dual-diode configuration that provides symmetrical, bidirectional clamping for both differential bus lines referenced to the same ground node.
Is the 31 pF capacitance measured differentially or single-ended?
The 31 pF value is the typical diode capacitance measured single-ended from Pin 1 to Pin 3 (K1 to CC) or Pin 2 to Pin 3 (K2 to CC) at 1 MHz and 0 V bias; capacitance matching between the two diodes is guaranteed at <0.5% ΔCd/Cd, ensuring balanced loading on the CAN differential pair.
Does PESD2CAN24XLT-QR require external components for basic operation?
No - it functions as a standalone protection device with no external resistors, capacitors, or TVS diodes required. Optimal PCB layout requires placing it within 2 mm of the CAN connector with short, direct traces to Pins 1 and 2 and a low-inductance connection from Pin 3 to chassis ground.
PESD2CAN24XLT-QR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Package/Case:
- -
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- -
- Unidirectional Channels:
- -
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- -
- Voltage - Breakdown (Min):
- -
- Voltage - Clamping (Max) @ Ipp:
- -
- Current - Peak Pulse (10/1000µs):
- -
- Power - Peak Pulse:
- -
- Power Line Protection:
- -
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
PESD2CAN24XLT-QR FAQ
1.How can I place an order for PESD2CAN24XLT-QR through Aetrix?
Please submit a Request for Quotation (RFQ) for PESD2CAN24XLT-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 PESD2CAN24XLT-QR reliable?
The price and inventory of PESD2CAN24XLT-QR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PESD2CAN24XLT-QR is usually 5 days.
3.What payment methods are accepted for PESD2CAN24XLT-QR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PESD2CAN24XLT-QR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PESD2CAN24XLT-QR?
PESD2CAN24XLT-QR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PESD2CAN24XLT-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 PESD2CAN24XLT-QR?
For technical support, including PESD2CAN24XLT-QR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PESD2CAN24XLT-QR requirements.
6.How does Aetrix verify that PESD2CAN24XLT-QR is sourced from the original manufacturer or authorized distributors?
All PESD2CAN24XLT-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 PESD2CAN24XLT-QR meets industry standards.
7.What is the process for return or replacement of PESD2CAN24XLT-QR?
All PESD2CAN24XLT-QR units undergo pre-shipment inspection (PSI). If there is an issue with PESD2CAN24XLT-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 PESD2CAN24XLT-QR part is unused and in its original packaging.
Return procedure for PESD2CAN24XLT-QR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PESD2CAN24XLT-QR 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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DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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PESD2V0Y1BSFYL
Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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