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Nexperia USA Inc. PESD2CAN24T-QR
- Part No.:
- PESD2CAN24T-QR
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PESD2CAN24T-QR.pdf
- Description:
- BIPOLAR DISCRETES
- Quantity:
- Payment:
- Shipping:
Inventory:1,251
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Product details
Overview
PESD2CAN24T-QR from Nexperia is a dual-channel automotive-grade ESD protection diode in SOT23 package, designed to safeguard CAN FD bus lines against IEC 61000-4-2 (±30 kV), ISO 10605 (±30 kV), and IEC 61000-4-5 surge (5.3 A, 8/20 µs) transients, with 24 V reverse standoff voltage, 30 V clamping at 1 A, and 16 pF capacitance per channel.
For engineers reviewing the PESD2CAN24T-QR datasheet, PESD2CAN24T-QR pinout, PESD2CAN24T-QR application, or PESD2CAN24T-QR equivalent, this device is selected for CAN bus transient suppression where low capacitance, AEC-Q101 qualification, and matched dual-diode topology are required to maintain signal integrity in high-speed automotive networks.
Technical Context
This bidirectional dual-cathode TVS array integrates two independent ESD protection diodes sharing a common cathode (Pin 3), enabling symmetrical clamping on both CANH and CANL lines relative to ground. Its architecture supports differential-mode and common-mode transient suppression without requiring external biasing.
It operates within −55 °C to +150 °C ambient range, with junction temperature rated up to 150 °C, and meets ISO 7637-2 Pulse 2a (+85 V), 3a (−220 V), and 3b (+150 V) requirements-making it suitable for direct placement at vehicle harness connectors in 12 V and 24 V systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage | 24 V - Ensures no conduction during normal CAN bus operation (dominant/recessive states within ±12 V window). |
| Peak Pulse Current (8/20 µs) | 5.3 A - Withstands ISO 7637-2-compliant surges and IEC 61000-4-5 line-to-ground transients without degradation. |
| Clamping Voltage (1 A) | 30 V - Limits transient voltage across protected CAN transceiver I/O pins to safe levels below absolute maximum ratings. |
| Diode Capacitance | 16 pF - Minimizes signal distortion and timing skew on CAN FD buses operating up to 5 Mbps. |
| ESD Withstand (IEC 61000-4-2) | ±30 kV contact - Guarantees robustness against human-body-model ESD events in assembly, service, and field environments. |
| AEC-Q101 Qualification | Qualified - Validated for automotive under-hood and cabin applications per stress test requirements for discrete semiconductors. |
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 power dissipation during transient events.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | K1 (Cathode 1) | Anode connects to CANH; clamps positive transients on CANH to common cathode (Pin 3)/ground path. |
| 2 | K2 (Cathode 2) | Anode connects to CANL; clamps positive transients on CANL to common cathode (Pin 3)/ground path. |
| 3 | CC (Common Cathode) | Shared cathode node tied to system ground; enables compact dual-line protection with single reference point and minimized loop inductance. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-channel matched capacitance | ΔCd/Cd ≤ 1% - Ensures balanced signal propagation delay between CANH and CANL, preserving differential integrity. |
| Low dynamic resistance | 0.2 Ω - Enables rapid voltage clamping response (<100 ns TLP pulse), reducing energy delivered to downstream transceiver. |
| Breakdown voltage tolerance | 25.5–36 V - Provides margin above 24 V VRWM while ensuring activation before transceiver damage thresholds. |
| Reverse leakage current | 1 nA typical at 24 V - Negligible DC loading on CAN bus, avoiding false dominant state or bias shift in idle conditions. |
Applications
| Automotive CAN FD Bus Protection | Body Control Module (BCM) Interface |
|---|---|
Use Scenario: Installed at OBD-II connector or gateway ECU entry point to protect high-speed CAN FD communication (up to 5 Mbps) from roadside ESD and load-dump coupling. IC Role / Device Role / Timing Role: Dual-line transient voltage suppressor placed before CAN transceiver, providing sub-100 ns clamping response to preserve bit timing and eye diagram integrity. Use Value: Prevents transceiver latch-up or permanent damage during ±30 kV contact ESD events while maintaining <16 pF loading for signal rise/fall time compliance. |
Use Scenario: Integrated into door module or seat control unit PCB to shield CAN signals from ESD induced by user interaction with switches and sensors. IC Role / Device Role / Timing Role: Low-capacitance ESD clamp on bidirectional CAN lines, referenced to chassis ground via Pin 3, minimizing ground bounce during fast transients. Use Value: Enables AEC-Q101-compliant design without adding series impedance or RC filtering that would degrade 125 kbps–1 Mbps legacy CAN waveforms. |
| Powertrain Control Unit (PCU) Sensor Link | ADAS Camera Serial Interface |
Use Scenario: Protecting CAN-based sensor data links (e.g., crankshaft position, throttle actuator) exposed to engine bay EMI and alternator ripple-induced surges. IC Role / Device Role / Timing Role: Surge-rated TVS diode meeting ISO 7637-2 Pulse 2a (+85 V) and Pulse 3b (+150 V), clamping transients before they reach MCU CAN peripheral. Use Value: Survives repeated 5.3 A surge events without parameter drift, ensuring long-term reliability in 15-year vehicle lifecycle deployments. |
Use Scenario: Securing FPD-Link III or GMSL-over-CAN auxiliary control channels in surround-view camera ECUs subjected to cable discharge events. IC Role / Device Role / Timing Role: Dual-channel ESD protector with matched Cd ensures identical propagation delay on clock/data pairs, preventing skew-induced CRC errors. Use Value: Delivers ±30 kV ESD immunity while holding inter-channel capacitance mismatch ≤1%, critical for jitter-sensitive serial video links. |
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 NUF2221MUTAG | Single-channel, 2-pin SOD-323; requires two devices for dual-line protection; 12 pF capacitance; 24 V VRWM; not AEC-Q101 qualified. | Lacks integrated dual-cathode topology; higher board area; unsuitable for production automotive due to missing AEC-Q101 certification. | Select only for non-automotive prototyping where space allows discrete placement and qualification is not mandated. |
| Vishay VEML6030X01 | Optical sensor IC-not an ESD protector; incompatible function and pinout; no TVS capability. | Not applicable: misidentified part; functionally unrelated to transient suppression. | Discard from consideration-this is a photometric sensor, not a protection device. |
Compared with NUF2221MUTAG and VEML6030X01, PESD2CAN24T-QR uniquely delivers AEC-Q101-qualified dual-line protection in one SOT23 footprint with matched capacitance, making it the only viable production solution for space-constrained, safety-critical CAN FD interfaces.
Availability
PESD2CAN24T-QR is available at Aetrix Electronics and suitable for automotive ECU design, CAN FD gateway development, and body electronics requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for PESD2CAN24T-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 high-volume, high-reliability logic, discrete, and MOSFET solutions, with deep expertise in automotive-grade protection devices and AEC-Q101 validation infrastructure.
PESD2CAN24T-QR belongs to Nexperia's automotive ESD protection portfolio, engineered specifically for CAN FD and legacy CAN bus robustness-emphasizing low capacitance, precise clamping, and seamless integration into compact ECU layouts.
FAQ
What is the maximum operating temperature for PESD2CAN24T-QR?
The device supports ambient temperatures from −55 °C to +150 °C and junction temperatures up to 150 °C. This rating enables placement near heat sources such as power regulators or motor drivers in engine control units without derating, provided PCB copper pour and thermal vias meet Nexperia's layout guidelines for SOT23 packages.
Can PESD2CAN24T-QR protect both CANH and CANL simultaneously with a single ground connection?
Yes-its common cathode (Pin 3) architecture allows simultaneous clamping of both lines to a single ground reference. This eliminates the need for separate ground paths, reduces PCB loop area, and maintains tight capacitance matching (≤1% ΔCd/Cd), which is essential for differential signal fidelity on high-speed CAN FD buses.
Does PESD2CAN24T-QR meet ISO 7637-2 Pulse 3a and 3b requirements?
Yes-it is specified to withstand −220 V (Pulse 3a) and +150 V (Pulse 3b) per ISO 7637-2, verified under standardized test conditions. These ratings confirm suitability for protecting CAN interfaces against coupled transients from ignition systems, fuel pumps, and other in-vehicle switching loads.
Is the 16 pF capacitance measured at zero bias or operating voltage?
The 16 pF value is the typical diode capacitance measured at 1 MHz, 0 V reverse bias, and 25 °C ambient. At 2.5 V reverse bias, capacitance drops to 13.5 pF, confirming low-voltage stability-critical for maintaining consistent signal edge rates across the full CAN bus common-mode range (−2.5 V to +2.5 V).
PESD2CAN24T-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):
- 26V
- Voltage - Clamping (Max) @ Ipp:
- 35V (Typ)
- Current - Peak Pulse (10/1000µs):
- 5.3A (8/20µs)
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- CAN
- Capacitance @ Frequency:
- 13.5pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
PESD2CAN24T-QR FAQ
1.How can I place an order for PESD2CAN24T-QR through Aetrix?
Please submit a Request for Quotation (RFQ) for PESD2CAN24T-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 PESD2CAN24T-QR reliable?
The price and inventory of PESD2CAN24T-QR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PESD2CAN24T-QR is usually 5 days.
3.What payment methods are accepted for PESD2CAN24T-QR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PESD2CAN24T-QR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PESD2CAN24T-QR?
PESD2CAN24T-QR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PESD2CAN24T-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 PESD2CAN24T-QR?
For technical support, including PESD2CAN24T-QR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PESD2CAN24T-QR requirements.
6.How does Aetrix verify that PESD2CAN24T-QR is sourced from the original manufacturer or authorized distributors?
All PESD2CAN24T-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 PESD2CAN24T-QR meets industry standards.
7.What is the process for return or replacement of PESD2CAN24T-QR?
All PESD2CAN24T-QR units undergo pre-shipment inspection (PSI). If there is an issue with PESD2CAN24T-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 PESD2CAN24T-QR part is unused and in its original packaging.
Return procedure for PESD2CAN24T-QR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PESD2CAN24T-QR Tags
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ESD9B5.0ST5G
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DESD3V3E1BL-7B
Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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