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Vishay General Semiconductor - Diodes Division VCAN36A2-03GHE3-18
- Part No.:
- VCAN36A2-03GHE3-18
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- SC-70, SOT-323
- Datasheet:
-
VCAN36A2-03GHE3-18.pdf
- Description:
- TVS DIODE 36VWM 63VC SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:10,000
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Product details
Overview
VCAN36A2-03GHE3-18 from Vishay Semiconductors is a bidirectional symmetrical (BiSy) dual-line ESD protection diode in SOT-323 package, rated for ±36 V working voltage, <0.05 μA reverse leakage, <10 pF load capacitance, and ±30 kV IEC 61000-4-2 contact/air discharge immunity-designed for CAN bus signal line protection in automotive and industrial control systems.
For engineers reviewing the VCAN36A2-03GHE3-18 datasheet, VCAN36A2-03GHE3-18 pinout, VCAN36A2-03GHE3-18 application, or VCAN36A2-03GHE3-18 equivalent, key selection criteria include bidirectional clamping voltage (55–63 V at 2.4 A), AEC-Q101 qualification, low-capacitance interface compatibility, and SOT-323 footprint constraints for high-density PCB layouts.
Technical Context
This device implements a dual-channel, symmetric TVS structure with matched breakdown characteristics (VBR = 39–45 V) across both protected lines (pins 1–3 and 2–3), enabling balanced transient suppression on differential CAN H/L pairs without polarity sensitivity. Its BiSy architecture ensures identical clamping behavior regardless of surge direction.
Designed specifically for CAN physical layer compliance, it meets stringent ESD robustness requirements (±30 kV IEC 61000-4-2) and AEC-Q101 Class H3B (>8 kV HBM), while maintaining sub-10 pF capacitance to preserve signal integrity up to 1 Mbps CAN FD data rates without waveform distortion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Protection Type | Bidirectional symmetrical (BiSy) dual-line TVS for differential signal paths |
| Working Voltage (VRWM) | ±36 V - matches nominal CAN bus common-mode range and withstands transients without conduction |
| Clamping Voltage (VC) | 55–63 V at 2.4 A (8/20 µs) - limits peak voltage seen by downstream CAN transceiver inputs |
| Capacitance (CD) | 8–10 pF at 0 V, 1 MHz - minimizes signal rise-time degradation on high-speed CAN FD lines |
| ESD Rating | ±30 kV contact / ±30 kV air per IEC 61000-4-2 - exceeds automotive OEM ESD test requirements |
| AEC-Q101 Qualification | Qualified (H-grade) - validated for under-hood automotive operation from −55 °C to +175 °C junction temperature |
Pinout & Package
SOT-323 package: 3-pin ultra-small surface-mount plastic case (2.2 × 1.35 × 0.95 mm), MSL level 1, lead (Pb)-free tin-plated terminations (e3), compatible with standard reflow profiles (peak 260 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode of Channel 1 | Connects to CAN_H line; forms one half of bidirectional protection path to common cathode (Pin 3) |
| Pin 2 | Anode of Channel 2 | Connects to CAN_L line; forms second bidirectional path to shared cathode (Pin 3) |
| Pin 3 | Common Cathode | Reference node tied to ground or chassis; enables dual-channel clamping with single return path |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional Symmetry | Matched VBR (39–45 V) and VC on both channels ensures equal clamping for CAN_H and CAN_L surges |
| Low Capacitance | 8–10 pF enables use on 1–5 Mbps CAN FD buses without signal integrity loss or timing skew |
| AEC-Q101 H-Grade | Validated for 175 °C max junction temperature - suitable for engine control unit (ECU) and transmission module placement |
| e3 Tin Plating | RoHS-compliant Sn termination ensures reliable solderability and long-term intermetallic stability |
Applications
| Automotive CAN Bus Protection | Industrial Fieldbus Interface |
|---|---|
Use Scenario: Protecting CAN_H/CAN_L lines in engine control units against ISO 10605 and IEC 61000-4-2 ESD events during vehicle assembly or service. IC Role / Device Role / Timing Role: Bidirectional transient voltage suppressor placed directly at connector entry point before CAN transceiver. Use Value: Prevents latch-up or damage to CAN transceivers (e.g., TJA1042, SN65HVD230) while preserving signal edge fidelity via <10 pF loading. | Use Scenario: Shielding RS-485/422-based FLEX-bus nodes in factory automation PLCs from electrostatic discharge in dusty, high-static environments. IC Role / Device Role / Timing Role: Dual-line ESD clamp on differential data pair, referenced to local ground plane. Use Value: Maintains >1 Mbps data throughput without added jitter or reflection due to ultra-low 8–10 pF capacitance. |
| On-Board Charger (OBC) Communication | EV Battery Management System (BMS) |
Use Scenario: Securing CAN communication between OBC controller and vehicle ECU during high-voltage charging cycles where ground potential shifts occur. IC Role / Device Role / Timing Role: Common-cathode dual TVS providing symmetrical clamping on isolated CAN bus segment. Use Value: Enables robust operation across ±36 V common-mode window, accommodating battery pack voltage offsets without false triggering. | Use Scenario: Protecting inter-module CAN links in modular BMS stacks exposed to handling ESD and relay switching transients. IC Role / Device Role / Timing Role: Low-leakage (<0.05 μA) ESD protector ensuring no DC loading impact on precision voltage/current sensing references. Use Value: Eliminates risk of baseline drift in analog monitoring circuits while delivering ±30 kV ESD immunity per line. |
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 V), higher CD (15 pF), same SOT-323 package | Targeted for USB/low-voltage logic; unsuitable for 36 V CAN bus operating range | Select only for 3.3/5 V interfaces requiring higher ESD rating (±30 kV) but lower voltage tolerance |
| LITTELFUSE SP3222-04UTG | Quad-channel (4-line), 12 pF CD, ±24 V VRWM, SOT-23-6 package | Supports multi-signal protection (e.g., CAN + LIN); larger footprint and higher capacitance than VCAN36A2-03GHE3-18 | Choose when protecting additional signals on same board area; not drop-in for dual-line-only CAN layout |
Compared with RCLAMP0524P.TCT and SP3222-04UTG, VCAN36A2-03GHE3-18 uniquely balances ±36 V standoff, <10 pF capacitance, and AEC-Q101 H-grade qualification-making it the only option among the three qualified for under-hood automotive CAN applications requiring simultaneous high-voltage margin and signal integrity.
Availability
VCAN36A2-03GHE3-18 is available at Aetrix Electronics and suitable for automotive ECU design, industrial fieldbus interface development, and EV on-board charger communication systems requiring stable component supply and long-term lifecycle support.
Supply support for VCAN36A2-03GHE3-18 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 semiconductor manufacturer specializing in discrete components, sensors, and passive elements, with leadership in high-reliability protection devices and automotive-qualified solutions.
The VCAN series is engineered specifically for CAN bus physical layer protection, emphasizing low capacitance, bidirectional symmetry, and AEC-Q101 qualification to meet stringent automotive EMC and durability requirements.
FAQ
What is the maximum clamping voltage of the VCAN36A2-03GHE3-18 during an 8/20 µs surge?
The VCAN36A2-03GHE3-18 clamps to a maximum of 63 V at 2.4 A peak pulse current (IPPM) under IEC 61000-4-5 8/20 µs waveform conditions. This value is measured pin-to-pin (e.g., Pin 1 to Pin 3) and ensures downstream CAN transceivers remain within safe operating voltage limits during transient events. The typical clamping voltage is 55 V at the same current level.
Is the VCAN36A2-03GHE3-18 qualified for automotive under-hood applications?
Yes, the VCAN36A2-03GHE3-18 is AEC-Q101 qualified (H-grade) and rated for junction temperatures from −55 °C to +175 °C. Its construction, materials, and test validation-including thermal cycling, humidity bias, and ESD stress-meet automotive under-hood reliability requirements. The "H" in the part number explicitly denotes AEC-Q101 qualification.
How many signal lines does the VCAN36A2-03GHE3-18 protect, and how are they configured?
The VCAN36A2-03GHE3-18 protects two independent signal lines (e.g., CAN_H and CAN_L) using a common-cathode configuration: Pin 1 and Pin 2 serve as anodes for each channel, and Pin 3 is the shared cathode. This allows bidirectional, symmetrical clamping on both lines relative to ground or chassis reference without requiring separate return paths.
What is the load capacitance of the VCAN36A2-03GHE3-18, and why does it matter for CAN FD?
The VCAN36A2-03GHE3-18 exhibits 8–10 pF capacitance at 0 V reverse bias and 1 MHz. This low value is critical for CAN FD applications up to 5 Mbps, as excessive capacitance distorts signal edges, increases bit error rate, and violates ISO 11898-2 timing margins. The specified capacitance ensures minimal impact on rise/fall times and reflection coefficients.
Does the VCAN36A2-03GHE3-18 support both contact and air discharge ESD testing per IEC 61000-4-2?
Yes, the VCAN36A2-03GHE3-18 is rated for ±30 kV contact discharge and ±30 kV air discharge per IEC 61000-4-2 (10 pulses each). This performance is verified across all protected channels (Pin 1–3 and Pin 2–3) and confirms suitability for final assembly ESD testing and real-world handling scenarios in automotive and industrial manufacturing environments.
VCAN36A2-03GHE3-18 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:
- 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 ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
VCAN36A2-03GHE3-18 FAQ
1.How can I place an order for VCAN36A2-03GHE3-18 through Aetrix?
Please submit a Request for Quotation (RFQ) for VCAN36A2-03GHE3-18 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 VCAN36A2-03GHE3-18 reliable?
The price and inventory of VCAN36A2-03GHE3-18 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VCAN36A2-03GHE3-18 is usually 5 days.
3.What payment methods are accepted for VCAN36A2-03GHE3-18?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VCAN36A2-03GHE3-18 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VCAN36A2-03GHE3-18?
VCAN36A2-03GHE3-18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VCAN36A2-03GHE3-18 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 VCAN36A2-03GHE3-18?
For technical support, including VCAN36A2-03GHE3-18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VCAN36A2-03GHE3-18 requirements.
6.How does Aetrix verify that VCAN36A2-03GHE3-18 is sourced from the original manufacturer or authorized distributors?
All VCAN36A2-03GHE3-18 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 VCAN36A2-03GHE3-18 meets industry standards.
7.What is the process for return or replacement of VCAN36A2-03GHE3-18?
All VCAN36A2-03GHE3-18 units undergo pre-shipment inspection (PSI). If there is an issue with VCAN36A2-03GHE3-18, 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 VCAN36A2-03GHE3-18 part is unused and in its original packaging.
Return procedure for VCAN36A2-03GHE3-18:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VCAN36A2-03GHE3-18 Tags
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