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Vishay VCAN36A2-03SHE3A18
- Part No.:
- VCAN36A2-03SHE3A18
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
VCAN36A2-03SHE3A18.pdf
- Description:
- ESD PROTECTION DIODE SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:6,396
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Product details
Overview
VCAN36A2-03SHE3A18 from Vishay Semiconductors is a bidirectional symmetrical (BiSy) dual-line ESD protection diode in SOT-23 package, rated for ±36 V working voltage, <10 pF load capacitance, and ±30 kV IEC 61000-4-2 contact/air discharge immunity - deployed on CAN bus signal lines in automotive body control modules.
For engineers reviewing the VCAN36A2-03SHE3A18 datasheet, VCAN36A2-03SHE3A18 pinout, VCAN36A2-03SHE3A18 application, or VCAN36A2-03SHE3A18 equivalent, key selection criteria include clamping voltage at 2.4 A (≤63 V), AEC-Q101 qualification, tin-plated e3 terminations, and dual-channel layout compatibility with space-constrained CAN transceiver interfaces.
Technical Context
The VCAN36A2-03SHE3A18 implements two independent, symmetrical Zener-based ESD protection paths between pins 1–3 and 2–3, each with 36 V reverse stand-off voltage and 39–45 V breakdown at 1 mA. Its low 8–10 pF capacitance ensures minimal signal integrity impact on high-speed CAN FD (up to 5 Mbps) and legacy CAN (1 Mbps) buses.
It meets AEC-Q101 stress requirements including HBM >8 kV and operates across –55 °C to +150 °C junction temperature, with MSL level 1 moisture sensitivity and peak reflow tolerance up to 260 °C - confirming suitability for under-hood automotive PCB assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Protection Type | Bidirectional symmetrical (BiSy) dual-line ESD clamp - enables identical protection for both CAN_H and CAN_L without polarity dependency |
| Reverse Stand-off Voltage | 36 V - defines maximum continuous operating voltage before leakage exceeds 0.05 μA, matching standard 12 V/24 V automotive supply rails |
| Clamping Voltage | 55–63 V at 2.4 A (8/20 μs pulse) - limits transient overvoltage to safe levels for ISO 11898-2-compliant CAN transceivers |
| Capacitance | 8–10 pF at 0 V, 1 MHz - preserves signal edge rate and minimizes bit error rate in CAN FD applications up to 5 Mbps |
| ESD Rating | ±30 kV contact / ±30 kV air per IEC 61000-4-2 - exceeds automotive OEM ESD immunity requirements for exterior-facing modules |
| AEC-Q101 Qualification | Qualified - validates reliability for automotive-grade production use, including temperature cycling, HTGB, and mechanical shock tests |
Pinout & Package
SOT-23 package (3-pin, 2.9 mm × 1.3 mm × 1.01 mm), MSL level 1, lead (Pb)-free with e3 tin plating, compatible with standard SOT-23 footprint per Vishay S8-V-3929.01-009.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | CAN_H protection anode/cathode | First bidirectional ESD path terminal - connects directly to CAN_H line upstream of transceiver |
| Pin 2 | CAN_L protection anode/cathode | Second independent bidirectional ESD path terminal - connects directly to CAN_L line, enabling differential-mode surge suppression |
| Pin 3 | Common cathode/anode reference | Shared ground-return node for both protection channels - must be tied to clean chassis or signal ground with low-inductance path |
Key Features
| Feature | Design Value |
|---|---|
| Dual-line BiSy architecture | Enables matched clamping response on CAN_H and CAN_L - eliminates skew-induced common-mode noise during ESD events |
| Low 8–10 pF capacitance | Maintains >70% signal rise/fall time retention at 5 Mbps CAN FD, avoiding timing margin loss in high-data-rate networks |
| AEC-Q101 qualification | Validates long-term reliability under automotive thermal, vibration, and humidity stress - required for Tier 1 BOM acceptance |
| ±30 kV IEC 61000-4-2 rating | Meets or exceeds OEM-level ESD robustness targets for gateway, junction box, and sensor node designs |
| e3 tin-plated terminations | Ensures solderability and intermetallic stability in lead-free reflow processes - supports IPC-J-STD-020 compliance |
Applications
| Automotive CAN Bus Nodes | Industrial CANopen Networks |
|---|---|
Use Scenario: Protection of LIN/CAN slave nodes in door modules, seat controllers, and mirror ECUs exposed to cable harness ESD coupling. IC Role / Device Role / Timing Role: Dual-channel transient voltage suppressor placed between connector and CAN transceiver input pins. Use Value: Prevents latch-up or permanent damage to NXP TJA1042 or ST TSN8251 transceivers during ±8 kV system-level ESD testing. |
Use Scenario: ESD hardening of CANopen drives and I/O modules in factory automation cabinets with frequent operator interaction. IC Role / Device Role / Timing Role: Line-side ESD clamp on differential CAN pair entering industrial controller backplane. Use Value: Maintains <1 ns added jitter and <0.5% bit error rate increase at 1 Mbps, verified per CiA 303-1 test plan. |
| Automotive Body Control Units | Heavy-Duty Vehicle J1939 Interfaces |
Use Scenario: Front-end protection for BCMs integrating multiple CAN channels (powertrain, comfort, infotainment) in shared harness routing. IC Role / Device Role / Timing Role: First-stage ESD barrier before common-mode choke and TVS array in multi-line CAN filter network. Use Value: Reduces post-surge leakage current to <0.05 μA after ±30 kV contact discharge - avoids false wake-up in low-power sleep modes. |
Use Scenario: J1939 data link protection in engine control units and telematics gateways subjected to truck/trailer coupling ESD events. IC Role / Device Role / Timing Role: High-energy clamping device rated for 150 W peak pulse power (8/20 μs) on 24 V vehicle systems. Use Value: Limits clamped voltage to ≤63 V at 2.4 A - stays below 70 V absolute max rating of Microchip MCP2562FD transceivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-line automotive ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NUP2114 | Single-channel, 3.3 V–5 V VRWM range; 12 pF capacitance; no AEC-Q101 qualification | Limited to low-voltage logic-level interfaces (e.g., USB, I²C); unsuitable for 12 V/24 V CAN bus | Select only for non-automotive, low-voltage digital signal lines where AEC-Q101 is not required |
| Infineon ESD204-B1-02EL | Quad-channel, 5.5 V VRWM, 0.5 pF capacitance, AEC-Q101 qualified - optimized for high-speed data (USB 3.0, HDMI) | Designed for sub-5 V, <1 GHz differential pairs; lacks 36 V standoff and dual-line CAN-specific clamping profile | Prefer for high-frequency serial links; avoid for CAN due to insufficient voltage rating and mismatched clamping curve |
Compared with NUP2114 and ESD204-B1-02EL, the VCAN36A2-03SHE3A18 uniquely delivers 36 V standoff, dual-channel BiSy symmetry, and AEC-Q101 validation - making it the only option among the three qualified for production CAN bus nodes in automotive and off-highway vehicles.
Availability
VCAN36A2-03SHE3A18 is available at Aetrix Electronics and suitable for automotive body electronics, industrial CANopen motion control, and heavy-duty vehicle J1939 communication systems requiring stable component supply and full AEC-Q101 traceability.
Supply support for VCAN36A2-03SHE3A18 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
Vishay Semiconductors is a global leader in discrete semiconductors, specializing in high-reliability passive and protection components for automotive, industrial, and computing markets.
The VCAN series is engineered specifically for CAN bus ESD protection, balancing low capacitance, high surge robustness, and AEC-Q101 compliance - targeting design-in across automotive ECUs and ruggedized industrial networks.
FAQ
What is the maximum clamping voltage of the VCAN36A2-03SHE3A18 at its rated peak pulse current?
The VCAN36A2-03SHE3A18 clamps to 55–63 V when subjected to its maximum rated peak pulse current of 2.4 A (8/20 μs waveform). This value is measured pin-to-pin (e.g., pin 1 to pin 3) and ensures protected CAN transceivers remain within their absolute maximum voltage ratings during IEC 61000-4-5 surge events. The VCAN36A2-03SHE3A18 datasheet specifies this range under "Electrical Characteristics" with test conditions clearly defined.
Is the VCAN36A2-03SHE3A18 qualified to AEC-Q101, and what does that mean for automotive use?
Yes, the VCAN36A2-03SHE3A18 is AEC-Q101 qualified - confirmed in Vishay's ordering information table and Absolute Maximum Ratings section. This qualification covers stress tests including HBM (>8 kV), temperature cycling, and high-temperature operating life, validating its suitability for automotive under-hood and cabin applications. The VCAN36A2-03SHE3A18 meets the reliability baseline required by Tier 1 suppliers for CAN interface protection in production vehicles.
How many protection channels does the VCAN36A2-03SHE3A18 provide, and how are they configured?
The VCAN36A2-03SHE3A18 provides two independent, bidirectional symmetrical (BiSy) ESD protection channels: one between pin 1 and pin 3, and another between pin 2 and pin 3. This configuration allows simultaneous protection of both CAN_H and CAN_L lines referenced to a common ground (pin 3), preserving differential signaling integrity. The VCAN36A2-03SHE3A18 achieves matched clamping behavior across both channels without external biasing.
What is the typical capacitance of the VCAN36A2-03SHE3A18, and why does it matter for CAN bus performance?
The VCAN36A2-03SHE3A18 exhibits 8–10 pF typical capacitance at 0 V reverse bias and 1 MHz - a critical parameter for maintaining signal fidelity on CAN buses. At 5 Mbps (CAN FD), this low capacitance limits rise-time degradation to <15%, preventing bit misalignment and ensuring compliance with ISO 11898-2 timing budgets. The VCAN36A2-03SHE3A18's capacitance is verified in Figure 4 of its datasheet and directly impacts eye diagram opening in high-speed implementations.
Does the VCAN36A2-03SHE3A18 support both contact and air discharge ESD testing per IEC 61000-4-2?
Yes, the VCAN36A2-03SHE3A18 is rated for ±30 kV contact discharge and ±30 kV air discharge per IEC 61000-4-2 (10 pulses at 25 °C), as stated in both the Features and Absolute Maximum Ratings sections. This dual-mode rating confirms robustness against real-world ESD threats encountered during assembly, service, and field operation - a requirement validated during AEC-Q101 qualification. The VCAN36A2-03SHE3A18 maintains functional integrity after full-stress testing without parametric shift.
VCAN36A2-03SHE3A18 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay
- 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):
- 36V (Max)
- Voltage - Breakdown (Min):
- 39V
- Voltage - Clamping (Max) @ Ipp:
- 63V
- Current - Peak Pulse (10/1000µs):
- 2.4A (8/20µs)
- Power - Peak Pulse:
- 150W
- Power Line Protection:
- No
- Applications:
- CAN
- Capacitance @ Frequency:
- 8pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
VCAN36A2-03SHE3A18 FAQ
1.How can I place an order for VCAN36A2-03SHE3A18 through Aetrix?
Please submit a Request for Quotation (RFQ) for VCAN36A2-03SHE3A18 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 VCAN36A2-03SHE3A18 reliable?
The price and inventory of VCAN36A2-03SHE3A18 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VCAN36A2-03SHE3A18 is usually 5 days.
3.What payment methods are accepted for VCAN36A2-03SHE3A18?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VCAN36A2-03SHE3A18 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VCAN36A2-03SHE3A18?
VCAN36A2-03SHE3A18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VCAN36A2-03SHE3A18 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 VCAN36A2-03SHE3A18?
For technical support, including VCAN36A2-03SHE3A18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VCAN36A2-03SHE3A18 requirements.
6.How does Aetrix verify that VCAN36A2-03SHE3A18 is sourced from the original manufacturer or authorized distributors?
All VCAN36A2-03SHE3A18 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 VCAN36A2-03SHE3A18 meets industry standards.
7.What is the process for return or replacement of VCAN36A2-03SHE3A18?
All VCAN36A2-03SHE3A18 units undergo pre-shipment inspection (PSI). If there is an issue with VCAN36A2-03SHE3A18, 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 VCAN36A2-03SHE3A18 part is unused and in its original packaging.
Return procedure for VCAN36A2-03SHE3A18:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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