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Nexperia USA Inc. PESD2CANFD24U-TR
- Part No.:
- PESD2CANFD24U-TR
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PESD2CANFD24U-TR.pdf
- Description:
- TVS DIODE 24VWM 42VC TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:249
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Product details
Overview
PESD2CANFD24U-TR from Nexperia is a dual-channel automotive-grade ESD protection diode in SOT23 package, designed for CAN-FD and CAN bus lines with 24 V reverse standoff voltage, 33 V clamping at 1 A, and 3.5 pF capacitance. It protects two differential in-vehicle network signals against IEC 61000-4-2 ±15 kV and ISO 10605 ±15 kV (150 pF/330 Ω) transients while operating up to 175 °C junction temperature.
For engineers reviewing the PESD2CANFD24U-TR datasheet, PESD2CANFD24U-TR pinout, PESD2CANFD24U-TR application, or PESD2CANFD24U-TR equivalent, key selection criteria include bidirectional clamping performance on dual lines, low capacitance for high-speed CAN-FD signal integrity, AEC-Q101 qualification, thermal robustness in under-hood environments, and common-cathode SOT23 layout compatibility.
Technical Context
This device implements a dual-channel common-cathode TVS diode architecture, where pins 1 and 2 serve as independent cathodes for two protected lines and pin 3 is the shared cathode reference. Its bidirectional clamping behavior enables symmetric transient suppression on both CANH and CANL without polarity constraints.
The 3.5 pF typical diode capacitance (measured at 1 MHz, VR = ±2.5 V) ensures minimal signal distortion on CAN-FD buses operating up to 5 Mbps, while the 1.9 A peak pulse current rating (8/20 µs waveform) supports IEC 61000-4-5 surge immunity. Dynamic resistance of 1 Ω enables fast response to sub-nanosecond ESD events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage | 24 V - Ensures no conduction during normal CAN-FD bus operation (±2 V common-mode, 2.2–3.3 V differential). |
| Clamping Voltage | 33 V (typ) at 1 A - Limits transient voltage across protected lines to safe levels for CAN transceivers rated ≤ 40 V abs max. |
| Diode Capacitance | 3.5 pF - Maintains signal rise/fall time integrity on 5 Mbps CAN-FD links with <1% timing skew. |
| ESD Rating | ±15 kV IEC 61000-4-2 - Meets automotive OEM requirements for connector-level ESD immunity. |
| Junction Temperature | 175 °C - Supports placement near powertrain ECUs or in engine compartment locations. |
| AEC-Q101 Qualified | Qualified per stress test standard for discrete semiconductors - Validated for automotive production use. |
Pinout & Package
SOT23 (TO-236AB) plastic surface-mounted package: 3-terminal, 1.9 mm pitch, 2.9 mm × 1.3 mm × 1.0 mm body. RoHS-compliant, halogen-free, and qualified for reflow and wave soldering per JEDEC J-STD-020 and J-STD-006.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | K1 (Cathode 1) | Connects to first protected line (e.g., CANH); forms one half of dual-channel clamp path to common cathode. |
| 2 | K2 (Cathode 2) | Connects to second protected line (e.g., CANL); forms second half of dual-channel clamp path to common cathode. |
| 3 | CC (Common Cathode) | Shared return node for both clamping paths; must be routed to low-inductance ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-line common-cathode topology | Enables compact PCB layout with single ground connection for two differential bus lines, reducing routing complexity and parasitic inductance. |
| Low 3.5 pF capacitance matching | ΔCd/Cd ≤ 0.5% ensures balanced capacitive loading on CANH/CANL, preserving common-mode rejection and minimizing bit error rate. |
| 175 °C junction rating | Supports direct mounting on high-temperature automotive control units without derating or heatsinking. |
| IEC 61000-4-2 & ISO 10605 compliance | Validated for both international ESD standards using contact discharge methods, covering full automotive test scope. |
Applications
| Automotive CAN-FD Networks | Automotive CAN Legacy Networks |
|---|---|
Use Scenario: High-speed communication between ADAS domain controller and radar/sensor ECUs over 2–5 Mbps CAN-FD bus. IC Role / Device Role / Timing Role: Dual-line ESD clamp placed at connector interface to suppress coupling from chassis-ground transients during vehicle assembly or service. Use Value: Prevents latch-up or damage to 5 V CAN-FD transceivers (e.g., TJA1044) during ±15 kV ESD events while maintaining <1 ns inter-line skew. | Use Scenario: Body control module (BCM) communicating with door modules and lighting nodes via 125–500 kbps CAN. IC Role / Device Role / Timing Role: Bidirectional transient suppressor on differential pair, mounted within 5 mm of OBD-II connector to minimize stub inductance. Use Value: Enables robust operation in humid, vibration-prone cabin environments where repeated static discharge occurs during passenger entry/exit. |
| FlexRay Bus Protection | SENT Sensor Interface Protection |
Use Scenario: Powertrain control unit connecting to engine management sensors via deterministic 10 Mbps FlexRay bus. IC Role / Device Role / Timing Role: Common-cathode dual clamp protecting both FlexRay A and B lines against ignition system EFT and load dump coupling. Use Value: Maintains signal fidelity under 200 V/µs slew-rate transients while adding <0.3 dB insertion loss at 10 MHz. | Use Scenario: Engine control unit receiving analog sensor data (e.g., knock, pressure) via single-wire SENT protocol. IC Role / Device Role / Timing Role: Single-line ESD protector (using K1–CC or K2–CC path) on SENT output, leveraging same footprint as dual-line CAN design. Use Value: Reduces BOM count by sharing SOT23 land pattern across multiple automotive serial interfaces without sacrificing clamping performance. |
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 |
|---|---|---|---|
| NUP4202MR6T1G | Higher 40 V clamping at 1 A; 5.5 pF capacitance; SO-8 package. | Requires larger PCB area; less suitable for space-constrained CAN-FD modules. | Select when higher surge margin is prioritized over signal integrity at >2 Mbps. |
| TPD2E007DRYR | Lower 12 V standoff; 10 pF capacitance; 3-pin SOT-553 package. | Not AEC-Q101 qualified; limited to non-safety-critical infotainment systems. | Select only for cost-sensitive, non-automotive industrial CAN nodes with relaxed ESD requirements. |
Compared with NUP4202MR6T1G and TPD2E007DRYR, PESD2CANFD24U-TR uniquely balances 24 V standoff, 3.5 pF capacitance, and AEC-Q101 qualification in SOT23-making it optimal for space-constrained, high-speed automotive bus protection where signal fidelity and qualification compliance are co-required.
Availability
PESD2CANFD24U-TR is available at Aetrix Electronics and suitable for automotive CAN-FD modules, body electronics ECUs, and ADAS sensor interfaces requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for PESD2CANFD24U-TR 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 consumer markets.
This device belongs to Nexperia's Automotive ESD Protection portfolio, engineered specifically for robust transient suppression on high-speed in-vehicle networks-including CAN-FD, CAN, FlexRay, and SENT-while meeting stringent AEC-Q101 and PPAP requirements.
FAQ
What is the maximum recommended trace length between PESD2CANFD24U-TR and the protected CAN connector?
Maximum recommended PCB trace length from either pin 1 or pin 2 to the connector is 5 mm, with pin 3 (CC) connected directly to a solid ground plane via ≥2 vias within 2 mm. Longer traces increase inductance, degrading clamping response during sub-nanosecond ESD events and risking transceiver damage.
Can PESD2CANFD24U-TR protect both CANH and CANL simultaneously using its common-cathode configuration?
Yes. Pins 1 and 2 independently clamp their respective lines to the common cathode (pin 3), enabling simultaneous bidirectional protection of the full differential pair. This eliminates need for separate devices and ensures matched clamping thresholds and capacitance on both lines.
Is the 3.5 pF capacitance specified per diode or total between pins 1–3 and 2–3?
The 3.5 pF value is specified per diode-i.e., capacitance measured between pin 1 and pin 3, and separately between pin 2 and pin 3-at 1 MHz and ±2.5 V reverse bias. Matching tolerance is ≤0.5%, ensuring balanced loading on differential bus pairs.
Does PESD2CANFD24U-TR require external series impedance for optimal ESD performance?
No external series resistor is required. The device's 1 Ω dynamic resistance and optimized layout (short traces, ground vias near pin 3) provide sufficient impedance control. Adding series resistance would degrade signal edge rate and violate CAN-FD timing budgets.
PESD2CANFD24U-TR 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:
- 42V
- Current - Peak Pulse (10/1000µs):
- 2.6A (8/20µs)
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 3.1pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
PESD2CANFD24U-TR FAQ
1.How can I place an order for PESD2CANFD24U-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for PESD2CANFD24U-TR 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 PESD2CANFD24U-TR reliable?
The price and inventory of PESD2CANFD24U-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PESD2CANFD24U-TR is usually 5 days.
3.What payment methods are accepted for PESD2CANFD24U-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PESD2CANFD24U-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PESD2CANFD24U-TR?
PESD2CANFD24U-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PESD2CANFD24U-TR 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 PESD2CANFD24U-TR?
For technical support, including PESD2CANFD24U-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PESD2CANFD24U-TR requirements.
6.How does Aetrix verify that PESD2CANFD24U-TR is sourced from the original manufacturer or authorized distributors?
All PESD2CANFD24U-TR 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 PESD2CANFD24U-TR meets industry standards.
7.What is the process for return or replacement of PESD2CANFD24U-TR?
All PESD2CANFD24U-TR units undergo pre-shipment inspection (PSI). If there is an issue with PESD2CANFD24U-TR, 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 PESD2CANFD24U-TR part is unused and in its original packaging.
Return procedure for PESD2CANFD24U-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PESD2CANFD24U-TR 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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