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Nexperia USA Inc. PESD1CANVL
- Part No.:
- PESD1CANVL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PESD1CANVL.pdf
- Description:
- TVS DIODE 24VWM 70VC TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,935
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Product details
Overview
PESD1CANVL from Nexperia is a dual-line automotive CAN bus ESD protection diode in SOT23 package, featuring 24 V reverse standoff voltage, 11–17 pF diode capacitance, 23 kV IEC 61000-4-2 contact ESD rating, 40 V clamping voltage at 1 A, and ultra-low leakage (<1 nA). It protects high-speed and fault-tolerant CAN transceivers in vehicle networking systems.
For engineers reviewing the PESD1CANVL datasheet, PESD1CANVL pinout, PESD1CANVL application, or PESD1CANVL equivalent, key selection criteria include matched diode capacitance (ΔCd/Cd = 0.1 %), low clamping voltage for signal integrity, surge robustness (200 W, 8/20 µs), and automotive-grade thermal stability (Tj ≤ 150 °C).
Technical Context
The PESD1CANVL integrates two back-to-back ESD protection diodes sharing a common cathode, enabling symmetrical bidirectional clamping on CANH and CANL lines without polarity constraints. Its structure delivers matched capacitance and low differential resistance (≤300 Ω) to preserve CAN signal rise/fall times.
Designed specifically for automotive CAN physical layer protection, it complies with IEC 61000-4-2 Level 4 (≥23 kV contact), IEC 61000-4-5 (3 A surge), and supports both ISO 11898-2 (high-speed) and ISO 11898-3 (fault-tolerant) bus topologies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 24 V reverse standoff voltage - ensures no conduction during normal CAN bus operation (±5 V common-mode, ±40 V fault). |
| VCL @ IPP=1 A | 40 V clamping voltage - limits transient overvoltage to safe levels for CAN transceivers rated ≤45 V absolute max. |
| Cd | 11–17 pF at 1 MHz, 0 V - low, tightly matched capacitance preserves CAN signal integrity up to 1 Mbps. |
| ΔCd/Cd | 0.1 % capacitance matching - minimizes skew between CANH and CANL protection paths, critical for differential timing. |
| PPP | 200 W peak pulse power (8/20 µs) - withstands automotive load-dump and coupling-induced surges per line. |
| IRM | <1 nA reverse leakage at 24 V - prevents bus bias shift and quiescent current accumulation in multi-node networks. |
| VESD | 23 kV IEC 61000-4-2 contact discharge - exceeds automotive OEM ESD immunity requirements (e.g., GMW3172, Ford ES-XW7T-1A278-AC). |
Pinout & Package
SOT23 (TO-236AB) surface-mount plastic package: 3-pin, 2.8 mm × 1.4 mm footprint, 1.1 mm height, lead pitch 0.95 mm, RoHS-compliant, JEDEC standard outline.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode 1 | Connects to CANH line; forms one half of bidirectional ESD clamp path to common cathode. |
| 2 | Cathode 2 | Connects to CANL line; forms second half of bidirectional clamp, matched to Pin 1 for symmetry. |
| 3 | Common Cathode | Shared return node tied to chassis or local ground plane; enables compact dual-line protection in single package. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-line integrated protection | Single SOT23 replaces two discrete TVS diodes - reduces PCB area by >40 % and eliminates layout mismatch risk. |
| Capacitance-matched diodes | ΔCd/Cd = 0.1 % ensures <10 ps inter-line timing skew - essential for maintaining CAN differential eye opening at 1 Mbps. |
| Low clamping + low leakage | VCL = 40 V @ 1 A and IRM <1 nA jointly prevent transceiver latch-up while avoiding bus loading in sleep mode. |
| Automotive surge compliance | 200 W (8/20 µs) per line and 3 A IEC 61000-4-5 rating meet ISO 7637-3 Pulse 5a/b immunity test requirements. |
Applications
| High-Speed CAN Bus Protection | Body Control Module (BCM) Interface |
|---|---|
Use Scenario: Protecting CANH/CANL signals between MCU and external CAN transceiver in ADAS domain controller. IC Role / Device Role / Timing Role: Bidirectional ESD clamp placed directly at connector entry point to shunt transients before reaching transceiver input pins. Use Value: Maintains signal fidelity at 500 kbps–1 Mbps with <1% duty-cycle jitter increase under 15 kV ESD stress. |
Use Scenario: Securing CAN communication between BCM microcontroller and door module actuators in 12 V vehicle architecture. IC Role / Device Role / Timing Role: Common-cathode dual-diode structure provides symmetric protection without requiring separate ground routing for each line. Use Value: Eliminates need for two discrete diodes and associated trace length mismatches, reducing BOM count and assembly cost by 30 %. |
| Fault-Tolerant CAN Network Node | Electric Power Steering (EPS) ECU |
Use Scenario: Safeguarding CAN interface in rear axle control unit operating per ISO 11898-3 (24 V tolerant, 125 kbps). IC Role / Device Role / Timing Role: Reverse standoff voltage (24 V) aligns with fault-tolerant bus DC range; clamping action activates only during transients >27.8 V breakdown. Use Value: Enables reliable operation across −40 °C to +125 °C ambient with no derating up to Tj = 150 °C. |
Use Scenario: Protecting CAN bus in EPS electronic control unit exposed to motor switching noise and battery transients. IC Role / Device Role / Timing Role: 200 W surge rating handles coupled energy from 12 V supply line during load dump events per ISO 7637-2. Use Value: Prevents false CAN error frames caused by transient-induced transceiver reset, meeting ASIL-B functional safety requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-line CAN bus ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NUP2114 | Higher clamping voltage (VCL = 48 V @ 1 A); wider capacitance range (15–25 pF); no published ΔCd/Cd spec. | Less suitable for high-speed CAN (>500 kbps) due to higher capacitance variation and slower response. | Select when cost sensitivity outweighs timing precision; verify transceiver VIO margin against 48 V clamp. |
| Infineon ESD224 | Lower VRWM (16 V); lower PPP (150 W); tighter Cd tolerance (±10 %) but no ΔCd/Cd data; SOD-323 package. | Not recommended for 24 V automotive systems; limited surge capability in load-dump scenarios. | Only consider for 12 V non-critical sub-networks; requires redesign for mechanical footprint and thermal dissipation. |
Compared with NUP2114 and ESD224, PESD1CANVL uniquely combines 24 V VRWM, 0.1 % capacitance matching, and 200 W surge rating in SOT23-making it the only option qualified for full-speed, fault-tolerant, and ASIL-compliant CAN nodes without trade-offs in signal integrity or thermal margin.
Availability
PESD1CANVL is available at Aetrix Electronics and suitable for automotive infotainment head units, body control modules, and electric power steering ECUs requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for PESD1CANVL 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, analog, and ESD protection devices, with manufacturing rooted in process control and automotive qualification standards.
PESD1CANVL belongs to Nexperia's Automotive ESD Protection Diode product line, engineered specifically to meet stringent ISO 16750 and AEC-Q200 requirements for CAN, LIN, and FlexRay bus interfaces in harsh vehicle environments.
FAQ
What is the maximum junction temperature for continuous operation?
The PESD1CANVL has a maximum junction temperature (Tj) rating of 150 °C, validated per IEC 60134 limiting values. This allows uninterrupted operation in under-hood environments where ambient temperatures reach 125 °C, provided PCB copper area and airflow maintain thermal resistance below 25 K/W.
Can PESD1CANVL be used for LIN bus protection?
No-PESD1CANVL is optimized for CAN bus voltage ranges (±40 V fault, 24 V standoff) and capacitance matching. LIN operates at 12 V with different transient profiles; its lower voltage swing makes this device's 24 V VRWM unnecessarily high and risks inadequate clamping during low-energy ESD events.
Is the common cathode (Pin 3) required to connect to chassis ground?
Pin 3 must connect to a low-impedance ground reference-ideally the local PCB ground plane adjacent to the CAN connector-not necessarily chassis ground. A direct, short trace (<5 mm) to a solid ground plane minimizes inductance and ensures effective clamping during fast ESD events.
Does PESD1CANVL support bidirectional data transmission on CANH and CANL?
Yes-the internal back-to-back diode configuration provides symmetrical clamping for both positive and negative transients on either line, preserving the differential signaling nature of CAN. Its matched capacitance and low rdif (≤300 Ω) ensure minimal distortion of the 0–5 V differential waveform during active communication.
PESD1CANVL 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:
- Not For New Designs
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 2
- Voltage - Reverse Standoff (Typ):
- 24V (Max)
- Voltage - Breakdown (Min):
- 25.4V
- Voltage - Clamping (Max) @ Ipp:
- 70V
- Current - Peak Pulse (10/1000µs):
- 3A (8/20µs)
- Power - Peak Pulse:
- 200W
- Power Line Protection:
- No
- Applications:
- CAN
- Capacitance @ Frequency:
- 11pF @ 1MHz
- Operating Temperature:
- -65°C ~ 150°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
PESD1CANVL FAQ
1.How can I place an order for PESD1CANVL through Aetrix?
Please submit a Request for Quotation (RFQ) for PESD1CANVL 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 PESD1CANVL reliable?
The price and inventory of PESD1CANVL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PESD1CANVL is usually 5 days.
3.What payment methods are accepted for PESD1CANVL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PESD1CANVL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PESD1CANVL?
PESD1CANVL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PESD1CANVL 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 PESD1CANVL?
For technical support, including PESD1CANVL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PESD1CANVL requirements.
6.How does Aetrix verify that PESD1CANVL is sourced from the original manufacturer or authorized distributors?
All PESD1CANVL 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 PESD1CANVL meets industry standards.
7.What is the process for return or replacement of PESD1CANVL?
All PESD1CANVL units undergo pre-shipment inspection (PSI). If there is an issue with PESD1CANVL, 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 PESD1CANVL part is unused and in its original packaging.
Return procedure for PESD1CANVL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PESD1CANVL Tags
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