Vishay General Semiconductor - Diodes Division VCAN36C2-03GHE3-18
- Part No.:
- VCAN36C2-03GHE3-18
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- SC-70, SOT-323
- Datasheet:
-
VCAN36C2-03GHE3-18.pdf
- Description:
- BIDIRECTIONAL DIODE 36V;IR=0.05U
- Quantity:
- Payment:

- Shipping:

Inventory:20,000
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Product details
Overview
VCAN36C2-03GHE3-18 from Vishay Semiconductors is a bidirectional symmetrical (BiSy) dual-line ESD protection diode in SOT-323 package, designed for CAN FD and FLEX-bus interfaces. It provides ±36 V working range, <4.6 pF capacitance at 5 V reverse bias, <0.05 μA leakage current, ±27 kV IEC 61000-4-2 ESD immunity, and AEC-Q101 qualification for automotive-grade robustness.
For engineers reviewing the VCAN36C2-03GHE3-18 datasheet, VCAN36C2-03GHE3-18 pinout, VCAN36C2-03GHE3-18 application, or VCAN36C2-03GHE3-18 equivalent, key selection criteria include low-capacitance dual-line protection, AEC-Q101 compliance, SOT-323 footprint compatibility, and clamping performance under 1.8 A IEC 61000-4-5 surge conditions.
Technical Context
This device implements a symmetrical dual-channel TVS architecture with matched diode capacitance (<2% mismatch between lines) and identical forward/reverse clamping behavior. Its BiSy design ensures equal protection on both signal lines without polarity dependency, critical for differential bus protocols like CAN FD.
The VCAN36C2-03GHE3-18 operates across -55 °C to +175 °C junction temperature, supports peak pulse power of 120 W (8/20 μs), and maintains stable clamping voltage (≤66 V at 1.8 A) while delivering <5.5 pF typical capacitance at 0 V bias - enabling high-speed data integrity up to 5 Mbps.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Protection Type | Bidirectional symmetrical (BiSy) dual-line ESD protection for differential signaling |
| Working Voltage (VRWM) | ±36 V - supports full CAN FD common-mode range without DC blocking |
| Clamping Voltage (VC) | ≤66 V at 1.8 A (8/20 μs) - limits transients to safe levels for CAN transceivers |
| Capacitance (CD) | ≤4.6 pF at VR = 5 V - preserves signal integrity for >5 Mbps CAN FD data rates |
| ESD Immunity | ±27 kV contact/air discharge (IEC 61000-4-2) - exceeds automotive ESD requirements |
| AEC-Q101 Qualified | Yes - qualified for automotive under H3B human body model (>8 kV) |
| Leakage Current (IR) | ≤0.05 μA at 36 V - negligible loading on low-power CAN bus nodes |
Pinout & Package
SOT-323 package: 3-pin surface-mount, 2.2 mm × 1.35 mm × 0.95 mm body, MSL level 1, lead-free tin plating (e3), compatible with standard reflow profiles (peak 260 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode of Line 1 / Cathode of Line 2 | Shared center terminal for bidirectional clamping of two independent signal lines |
| Pin 2 | Anode of Line 2 / Cathode of Line 1 | Second line input/output terminal; electrically symmetric to Pin 1 |
| Pin 3 | Cathode of Line 1 & Line 2 | Common reference node tied to ground or bus shield; enables dual-line protection with single return path |
Key Features
| Feature | Design Value |
|---|---|
| Dual-line BiSy architecture | Enables simultaneous, polarity-agnostic ESD protection on CAN_H and CAN_L without external biasing |
| Capacitance matching (dCD) | ≤2% difference between Line 1–3 and Line 2–3 - minimizes skew in differential signaling |
| AEC-Q101 qualification | Validated for automotive under H3B (≥8 kV HBM), ensuring reliability in harsh vehicle environments |
| Low leakage current | ≤0.05 μA at VRWM - prevents bus loading and false wake-up in sleep-mode CAN nodes |
| SOT-323 footprint | Standardized 3-pin package with 0.65 mm pitch - drop-in compatible with existing CAN layout footprints |
Applications
| Automotive CAN FD Networks | Industrial FLEX-bus Interfaces |
|---|---|
Use Scenario: Protection of high-speed CAN FD nodes in ADAS ECUs, battery management systems, and gateway modules exposed to ISO 10605 and IEC 61000-4-2 transients. IC Role / Device Role / Timing Role: Dual-line ESD clamp placed directly at connector interface to suppress fast-rising ESD events before they reach the CAN transceiver. Use Value: Maintains signal integrity up to 5 Mbps while surviving ±27 kV contact discharge - eliminating need for additional series impedance or RC filtering. | Use Scenario: ESD hardening of FLEX-bus communication links in factory automation controllers, PLC backplanes, and motor drives operating in electrically noisy environments. IC Role / Device Role / Timing Role: Symmetrical transient suppressor on differential FLEX-bus pairs, referenced to chassis ground via Pin 3. Use Value: Matches line-to-line capacitance within 2%, preserving timing margins and reducing jitter-induced bit errors in deterministic real-time networks. |
| On-Board Charger (OBC) Communication | EV Battery Pack Monitoring |
Use Scenario: CAN interface protection between EV on-board charger and vehicle control unit during high-voltage switching events and electromagnetic interference. IC Role / Device Role / Timing Role: Front-end ESD guard for isolated CAN transceivers, absorbing coupled transients from power stage switching noise. Use Value: Withstands 120 W peak pulse power (8/20 μs) and operates up to +175 °C junction temperature - suitable for under-hood thermal environments. | Use Scenario: Signal line protection in distributed battery monitoring units (BMUs) connected via CAN to central BMS, where long harness runs increase ESD coupling risk. IC Role / Device Role / Timing Role: Low-capacitance shunt protector on each cell-module CAN pair, minimizing added load on multi-node daisy-chained buses. Use Value: ≤4.6 pF capacitance at 5 V bias ensures minimal rise-time degradation - maintaining reliable communication across 10+ node topologies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-line ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SEMTECH RCLAMP0524P.TCT | Lower VRWM (5.5 V), higher capacitance (12 pF), no AEC-Q101 qualification | Targeted at consumer USB/USB-C, not automotive CAN FD | Select only for non-automotive, low-voltage, cost-sensitive designs where 36 V standoff is unnecessary |
| LITTELFUSE SP3222-04UTG | Same SOT-323 package, 36 V VRWM, but unidirectional configuration requiring external bias | Requires separate ground reference per line; not BiSy - unsuitable for true differential bus protection | Use only when circuit topology allows individual line referencing and polarity-aware layout |
Compared with RCLAMP0524P.TCT and SP3222-04UTG, the VCAN36C2-03GHE3-18 uniquely delivers AEC-Q101-qualified, bidirectional, matched-capacitance dual-line protection in a single SOT-323 device - eliminating layout complexity and enabling direct integration into CAN FD and FLEX-bus physical layers without redesign.
Availability
VCAN36C2-03GHE3-18 is available at Aetrix Electronics and suitable for automotive CAN FD networks, industrial FLEX-bus interfaces, on-board charger communication, and EV battery pack monitoring requiring stable component supply and long-term production continuity.
Supply support for VCAN36C2-03GHE3-18 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 Intertechnology is a global manufacturer of discrete semiconductors and passive components, specializing in high-reliability solutions for automotive, industrial, and computing markets.
The VCAN36C2-03GHE3-18 belongs to Vishay's BiSy ESD protection family, engineered specifically for high-speed differential automotive buses including CAN FD and FLEX-bus - balancing ultra-low capacitance, high surge robustness, and AEC-Q101 compliance.
FAQ
What is the primary function of the VCAN36C2-03GHE3-18 in a CAN FD system?
The VCAN36C2-03GHE3-18 serves as a bidirectional symmetrical ESD protection diode for dual-line CAN FD interfaces. It clamps transient voltages on both CAN_H and CAN_L lines simultaneously, with matched capacitance and identical clamping behavior, ensuring signal integrity up to 5 Mbps while meeting ±27 kV IEC 61000-4-2 requirements. Its ±36 V standoff voltage aligns precisely with CAN FD bus operating ranges.
Does the VCAN36C2-03GHE3-18 require external biasing or direction-specific layout?
No - the VCAN36C2-03GHE3-18 uses a bidirectional symmetrical (BiSy) architecture that eliminates polarity dependency. Pins 1 and 2 serve as interchangeable signal terminals, while Pin 3 acts as the common cathode reference. This allows placement directly across differential pairs without orientation constraints or external bias resistors, simplifying PCB layout for CAN FD and FLEX-bus designs.
Is the VCAN36C2-03GHE3-18 qualified for automotive applications?
Yes - the VCAN36C2-03GHE3-18 is AEC-Q101 qualified and rated for H3B human body model (≥8 kV). It operates across -55 °C to +175 °C junction temperature and meets stringent automotive ESD, surge, and reliability standards. The "H" in the part number explicitly denotes AEC-Q101 qualification, making it suitable for under-hood and safety-critical CAN FD nodes.
What is the maximum clamping voltage of the VCAN36C2-03GHE3-18 under surge conditions?
The VCAN36C2-03GHE3-18 clamps to ≤66 V at its peak pulse current rating of 1.8 A (8/20 μs waveform per IEC 61000-4-5). At lower currents (e.g., 1 A), clamping is ≤55 V. This controlled voltage limit protects downstream CAN transceivers rated for absolute maximum 70 V, ensuring robust system-level surge resilience without overvoltage damage.
How does the capacitance matching specification benefit differential bus performance?
The VCAN36C2-03GHE3-18 guarantees ≤2% capacitance mismatch (dCD) between its two protection paths (Pin 1–3 and Pin 2–3). This tight matching minimizes differential-to-common-mode conversion and signal skew, preserving timing margins and reducing bit error rates in high-speed differential protocols like CAN FD - especially critical in multi-node, long-harness automotive networks.
VCAN36C2-03GHE3-18 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- SC-70, SOT-323
- 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:
- 66V
- Current - Peak Pulse (10/1000µs):
- 1.8A (8/20µs)
- Power - Peak Pulse:
- 120W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 5.5pF @ 1MHz
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
VCAN36C2-03GHE3-18 FAQ
1.How can I place an order for VCAN36C2-03GHE3-18 through Aetrix?
Please submit a Request for Quotation (RFQ) for VCAN36C2-03GHE3-18 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 VCAN36C2-03GHE3-18 reliable?
The price and inventory of VCAN36C2-03GHE3-18 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VCAN36C2-03GHE3-18 is usually 5 days.
3.What payment methods are accepted for VCAN36C2-03GHE3-18?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VCAN36C2-03GHE3-18 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VCAN36C2-03GHE3-18?
VCAN36C2-03GHE3-18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VCAN36C2-03GHE3-18 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 VCAN36C2-03GHE3-18?
For technical support, including VCAN36C2-03GHE3-18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VCAN36C2-03GHE3-18 requirements.
6.How does Aetrix verify that VCAN36C2-03GHE3-18 is sourced from the original manufacturer or authorized distributors?
All VCAN36C2-03GHE3-18 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 VCAN36C2-03GHE3-18 meets industry standards.
7.What is the process for return or replacement of VCAN36C2-03GHE3-18?
All VCAN36C2-03GHE3-18 units undergo pre-shipment inspection (PSI). If there is an issue with VCAN36C2-03GHE3-18, 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 VCAN36C2-03GHE3-18 part is unused and in its original packaging.
Return procedure for VCAN36C2-03GHE3-18:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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