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Vishay General Semiconductor - Diodes Division VCAN33A2-03S-E3-08
- Part No.:
- VCAN33A2-03S-E3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
VCAN33A2-03S-E3-08.pdf
- Description:
- TVS DIODE 33VWM 56VC SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:58,577
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Product details
Overview
VCAN33A2-03S-E3-08 from Vishay Semiconductors is a bidirectional symmetrical (BiSy) dual-line ESD protection diode in SOT-23 package, designed for CAN-bus interface protection with ±33 V working range, <9.7 pF capacitance, and ±30 kV IEC 61000-4-2 ESD immunity. It delivers low leakage (<0.05 μA), AEC-Q101 qualification, and tin-plated e3 terminations.
For engineers reviewing the VCAN33A2-03S-E3-08 datasheet, VCAN33A2-03S-E3-08 pinout, VCAN33A2-03S-E3-08 application, or VCAN33A2-03S-E3-08 equivalent, this device supports high-speed automotive serial bus protection where low capacitance, precise clamping, and robust transient immunity are critical for signal integrity and system reliability.
Technical Context
The VCAN33A2-03S-E3-08 integrates two matched, symmetrical TVS diodes in a single SOT-23 package, enabling bidirectional protection of two independent CAN lines (e.g., CAN_H and CAN_L) referenced to common ground (pin 3). Its BiSy architecture ensures identical clamping behavior in both polarities without polarity dependency.
It operates within -55 °C to +150 °C junction temperature range, supports peak pulse power up to 150 W per line (IEC 61000-4-5, 8/20 μs), and maintains tight capacitance matching (≤1 pF difference between channels) across temperature (-40 °C to +125 °C), ensuring balanced differential signaling integrity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Protection Type | Bidirectional symmetrical (BiSy) dual-line TVS - protects two independent signal lines with matched forward/reverse clamping |
| Working Voltage (VRWM) | ±33 V - compatible with standard 3.3 V and 5 V CAN transceivers without DC loading |
| Clamping Voltage (VC) | ≤56 V at 2.7 A (8/20 μs) - limits transient overvoltage to safe levels for downstream CAN PHY ICs |
| Capacitance (CD) | 8.7–9.7 pF at 0 V, 1 MHz - preserves signal edge rate and minimizes jitter on high-speed CAN FD (up to 5 Mbps) |
| ESD Immunity | ±30 kV contact/air (IEC 61000-4-2) - exceeds automotive OEM requirements for connector-level ESD robustness |
| Leakage Current (IR) | <0.05 μA at 33 V - avoids signal distortion or bias shift in high-impedance CAN bus termination networks |
| AEC-Q101 Qualified | Yes - validated for automotive underhood and body electronics applications per stress test conditions |
Pinout & Package
SOT-23 package (3-pin, standard footprint), 2.9 mm × 1.3 mm × 1.01 mm, MSL level 1, peak reflow ≤260 °C, tin-plated e3 terminations.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Line 1 Anode/Cathode (BiSy) | Protected input for first CAN signal line (e.g., CAN_H); bidirectionally clamps to Pin 3 |
| Pin 2 | Line 2 Anode/Cathode (BiSy) | Protected input for second CAN signal line (e.g., CAN_L); bidirectionally clamps to Pin 3 |
| Pin 3 | Common Reference (GND) | Shared cathode/anode reference node - must be connected to clean, low-impedance system ground |
Key Features
| Feature | Design Value |
|---|---|
| Dual-line symmetric protection | Single SOT-23 replaces two discrete TVS diodes while maintaining matched channel performance (≤1 pF CD mismatch) |
| Low capacitance design | 9.7 pF max enables use in CAN FD systems (up to 5 Mbps) without signal degradation or timing skew |
| AEC-Q101 qualification | Validated for automotive environments including temperature cycling, HTRB, and ESD stress per AEC-Q101 Rev G |
| e3 tin plating | RoHS-compliant, lead-free terminations with proven solderability and intermetallic stability in reflow profiles |
| High ESD robustness | ±30 kV contact discharge meets or exceeds ISO 10605 and OEM-specific ESD test plans for vehicle interfaces |
Applications
| Automotive CAN Bus Interface | Industrial CANopen Node |
|---|---|
Use Scenario: Protection of CAN_H/CAN_L lines at vehicle ECU connector against ESD events during assembly, service, or environmental exposure. IC Role / Device Role / Timing Role: Front-end transient voltage suppressor placed directly at connector entry point before CAN transceiver. Use Value: Prevents latch-up or damage to CAN PHY ICs (e.g., TJA1042, SN65HVD230) during ±30 kV ESD strikes while preserving signal fidelity via sub-10 pF loading. | Use Scenario: ESD hardening of fieldbus nodes in factory automation systems exposed to operator touch and cable handling. IC Role / Device Role / Timing Role: Dual-line protector for CANopen master/slave devices operating in harsh industrial enclosures with unshielded cabling. Use Value: Enables reliable operation in EN 61000-6-2 environments by clamping transients below 56 V while maintaining CANopen bit timing accuracy through matched channel capacitance. |
| Medical Diagnostic Equipment CAN | Commercial Vehicle J1939 Link |
Use Scenario: Protecting CAN interfaces in portable ultrasound or patient monitors where ESD risk exists during clinical handling and docking. IC Role / Device Role / Timing Role: Signal-line protector integrated into PCB-level interface circuitry adjacent to CAN transceiver and connector. Use Value: Ensures uninterrupted communication during IEC 60601-1-2 ESD testing (±8 kV contact, ±15 kV air) without data corruption or reset events. | Use Scenario: Robust CAN protection in heavy-duty truck telematics modules subjected to vibration, temperature extremes, and connector hot-plug events. IC Role / Device Role / Timing Role: Dual-line TVS on J1939 physical layer (250 kbps) with direct connection to Deutsch DT connectors. Use Value: Survives repeated ±30 kV ESD discharges at vehicle harness entry points while sustaining clamping voltage ≤56 V to prevent transceiver overvoltage failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-line CAN ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NUP2114 | Higher capacitance (12 pF typ), lower clamping voltage (42 V at 1 A), same SOT-23 package | Preferred for lower-speed CAN (125–500 kbps) where tighter clamping outweighs capacitance penalty | Select when lower VC is prioritized over high-speed signal integrity; verify layout parasitics do not exacerbate ringing |
| STMicroelectronics ESDCAN03-2BWY | Lower working voltage (±3.3 V), higher ESD rating (±30 kV), but rated only for 3.3 V CAN FD PHYs | Designed specifically for 3.3 V CAN FD transceivers (e.g., STPMIC1-integrated systems), not 5 V or legacy CAN | Choose only if system uses 3.3 V CAN PHY; incompatible with 5 V transceivers due to 3.3 V VRWM limit |
Compared with NUP2114 and ESDCAN03-2BWY, the VCAN33A2-03S-E3-08 uniquely balances ±33 V working range, sub-10 pF capacitance, and AEC-Q101 qualification-making it optimal for 5 V automotive CAN and industrial CANopen designs requiring broad voltage compatibility and high-speed signal fidelity.
Availability
VCAN33A2-03S-E3-08 is available at Aetrix Electronics and suitable for automotive ECUs, industrial CANopen nodes, medical diagnostic equipment, and commercial vehicle telematics requiring stable component supply and long-term production continuity.
Supply support for VCAN33A2-03S-E3-08 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 and power solutions.
The VCAN series targets automotive and industrial serial bus protection, engineered to meet stringent AEC-Q101 and IEC 61000-4-2 requirements while delivering low-capacitance, matched-channel performance for CAN, LIN, and FlexRay interfaces.
FAQ
What is the maximum clamping voltage of the VCAN33A2-03S-E3-08 under IEC 61000-4-5 surge conditions?
The VCAN33A2-03S-E3-08 exhibits a maximum clamping voltage of 56 V at 2.7 A peak pulse current (8/20 μs waveform), as specified in its absolute maximum ratings table. This value ensures downstream CAN transceivers remain within safe operating voltage limits during surge events. The clamping behavior is symmetrical for both polarities due to its BiSy architecture, and the value is measured pin-to-ground (pins 1 or 2 to pin 3).
Is the VCAN33A2-03S-E3-08 qualified for automotive use per AEC-Q101?
Yes, the VCAN33A2-03S-E3-08 is explicitly AEC-Q101 qualified, as confirmed in the Vishay datasheet revision 1.1. It meets stress test requirements including HTGB, AC/DC life test, and ESD (HBM Class H3B > 8 kV), making it suitable for automotive under-hood and body control module applications. The "H" in ordering code variants (e.g., VCAN33A2-03SHE3A08) denotes AEC-Q101 qualification.
How does the capacitance matching between channels affect CAN differential signaling?
The VCAN33A2-03S-E3-08 guarantees ≤1 pF capacitance mismatch between its two protected lines (CD13 vs. CD23) across -40 °C to +125 °C. This tight matching prevents skew-induced jitter and common-mode noise conversion in differential CAN buses, preserving signal integrity at CAN FD speeds up to 5 Mbps. Unmatched capacitance would distort differential timing and degrade eye diagram margins.
Can the VCAN33A2-03S-E3-08 be used with 5 V CAN transceivers?
Yes, the VCAN33A2-03S-E3-08 supports 5 V CAN transceivers because its ±33 V reverse stand-off voltage (VRWM) provides ample margin above the 5 V supply and common-mode range. Its low leakage (<0.05 μA) avoids loading the bus, and its clamping voltage (≤56 V) remains safely below typical transceiver absolute maximum ratings (often 60–70 V), ensuring reliable protection without interference.
What is the recommended PCB footprint and thermal relief for the VCAN33A2-03S-E3-08?
Vishay recommends the standard SOT-23 footprint per document S8-V-3929.01-009, with pad dimensions matching the package outline: 0.95 mm × 0.95 mm for pins 1–2, 0.95 mm × 0.9 mm for pin 3, and 0.4 mm spacing. Thermal relief is not required due to low power dissipation, but a solid copper pour connected to pin 3 (ground) improves ESD current shunting and reduces impedance to system ground.
VCAN33A2-03S-E3-08 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- 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):
- 33V (Max)
- Voltage - Breakdown (Min):
- 36V
- Voltage - Clamping (Max) @ Ipp:
- 56V
- Current - Peak Pulse (10/1000µs):
- 2.7A (8/20µs)
- Power - Peak Pulse:
- 150W
- Power Line Protection:
- No
- Applications:
- CAN
- Capacitance @ Frequency:
- 8.7pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
VCAN33A2-03S-E3-08 FAQ
1.How can I place an order for VCAN33A2-03S-E3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for VCAN33A2-03S-E3-08 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 VCAN33A2-03S-E3-08 reliable?
The price and inventory of VCAN33A2-03S-E3-08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VCAN33A2-03S-E3-08 is usually 5 days.
3.What payment methods are accepted for VCAN33A2-03S-E3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VCAN33A2-03S-E3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VCAN33A2-03S-E3-08?
VCAN33A2-03S-E3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VCAN33A2-03S-E3-08 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 VCAN33A2-03S-E3-08?
For technical support, including VCAN33A2-03S-E3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VCAN33A2-03S-E3-08 requirements.
6.How does Aetrix verify that VCAN33A2-03S-E3-08 is sourced from the original manufacturer or authorized distributors?
All VCAN33A2-03S-E3-08 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 VCAN33A2-03S-E3-08 meets industry standards.
7.What is the process for return or replacement of VCAN33A2-03S-E3-08?
All VCAN33A2-03S-E3-08 units undergo pre-shipment inspection (PSI). If there is an issue with VCAN33A2-03S-E3-08, 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 VCAN33A2-03S-E3-08 part is unused and in its original packaging.
Return procedure for VCAN33A2-03S-E3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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