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Vishay General Semiconductor - Diodes Division VCAN26B2-03G-E3-18
- Part No.:
- VCAN26B2-03G-E3-18
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- SC-70, SOT-323
- Datasheet:
-
VCAN26B2-03G-E3-18.pdf
- Description:
- ESD PROTECTION DIODE SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:5,380
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Product details
Overview
VCAN26B2-03G-E3-18 from Vishay Semiconductors is a bidirectional symmetrical (BiSy) dual-line ESD protection diode in SOT-323 package, designed for CAN bus and CAN FD interfaces. It provides ±26.5 V reverse stand-off voltage, 3 pF typical capacitance at 5 V, <0.05 μA leakage current, ±25 kV IEC 61000-4-2 contact ESD immunity, and AEC-Q101 qualification for automotive use.
For engineers reviewing the VCAN26B2-03G-E3-18 datasheet, VCAN26B2-03G-E3-18 pinout, VCAN26B2-03G-E3-18 application, or VCAN26B2-03G-E3-18 equivalent, this page delivers verified electrical parameters, package dimensions, CAN FD interface compatibility, clamping behavior under 2 A pulse, and direct alternative guidance per Vishay's official notice.
Technical Context
The VCAN26B2-03G-E3-18 integrates two matched, symmetrical ESD protection paths between pins 1–3 and 2–3, enabling dual-line CAN bus signal line protection without polarity sensitivity. Its BiSy architecture ensures identical clamping performance for positive and negative transients.
It operates across –55 °C to +150 °C junction temperature, supports peak pulse power of 100 W (8/20 μs), and maintains low 3–4 pF capacitance at 5 V - critical for preserving signal integrity in high-speed CAN FD data rates up to 5 Mbps.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Protection Type | Bidirectional symmetrical (BiSy) dual-line ESD clamp for CAN_H/CAN_L |
| Reverse Stand-off Voltage | 26.5 V - defines maximum continuous operating voltage before conduction |
| Clamping Voltage | 40–50 V at 2 A (8/20 μs) - limits transient voltage seen by downstream CAN transceiver |
| Capacitance | 3 pF typ. at 5 V - minimizes signal distortion and timing skew on CAN FD lines |
| ESD Immunity | ±25 kV contact / ±30 kV air (IEC 61000-4-2) - exceeds automotive system-level ESD requirements |
| Leakage Current | <0.05 μA at 26.5 V - avoids loading CAN bus bias networks or increasing quiescent power |
| AEC-Q101 Qualified | Yes - validated for automotive underhood and body control module environments |
Pinout & Package
SOT-323 package: 3-pin surface-mount plastic case with gull-wing leads; MSL level 1, peak reflow ≤260 °C; footprint matches JEDEC MO-203AA standard.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Line 1 Anode/Cathode (BiSy) | Connects to CAN_H or CAN_L; bidirectional path to Pin 3 |
| Pin 2 | Line 2 Anode/Cathode (BiSy) | Connects to second CAN signal line; independent bidirectional path to Pin 3 |
| Pin 3 | Common Cathode/Anode Reference | Shared low-impedance return for both protection paths; ties to ground or common reference plane |
Key Features
| Feature | Design Value |
|---|---|
| Dual-line BiSy architecture | Enables single-device protection of both CAN_H and CAN_L with matched clamping and capacitance |
| Low 3 pF capacitance at 5 V | Maintains signal rise/fall time integrity for CAN FD bit rates ≥2 Mbps |
| ±25 kV IEC 61000-4-2 contact ESD | Meets ISO 11898-2 system-level robustness requirements for automotive ECUs |
| AEC-Q101 qualification | Validated for temperature cycling, HTRB, and mechanical shock per automotive reliability standards |
| e3 tin-plated terminations | RoHS-compliant, lead-free, compatible with standard SnAgCu reflow profiles |
Applications
| Automotive CAN FD Node Protection | Industrial CAN Bus Interface |
|---|---|
Use Scenario: Protecting microcontroller-based CAN FD nodes in engine control units against ESD events during assembly or field operation. 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., TCAN1042, SN65HVD256) while adding only 3 pF load per line. |
Use Scenario: Securing RS-485-to-CAN gateways in factory automation systems exposed to electrostatic discharge from operator handling. IC Role / Device Role / Timing Role: Dual-line ESD clamp on differential CAN pair, referenced to system ground plane via Pin 3. Use Value: Maintains signal fidelity over 100 m cable runs while surviving ±30 kV air discharge per IEC 61000-4-2. |
| Body Control Module I/O Protection | EV Battery Management CAN Interface |
Use Scenario: Shielding door module CAN interfaces from ESD induced by plastic trim contact or relay switching noise. IC Role / Device Role / Timing Role: Low-capacitance shunt protector mounted adjacent to CAN connector, minimizing stub length. Use Value: Enables compact PCB layout with no signal integrity penalty - verified at 5 Mbps CAN FD data rate. |
Use Scenario: Safeguarding isolated CAN communication between BMS master and cell monitoring ICs in high-voltage battery packs. IC Role / Device Role / Timing Role: Secondary ESD barrier after isolation barrier, referenced to isolated ground domain. Use Value: Operates reliably from –40 °C to +125 °C ambient, supporting AEC-Q101 thermal stress 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 |
|---|---|---|---|
| VCAN26C2-03G-E3-18 | Higher clamping voltage (42–52 V at 2 A); same 26.5 V VRWM and 3 pF capacitance | Marginally reduced transient suppression headroom; otherwise drop-in replacement per Vishay | Preferred for new designs where higher surge margin is acceptable and legacy VCAN26B2-03G-E3-18 is obsolete |
| TPD2E001DRYR | Lower VRWM (5.5 V); 12 pF capacitance; not AEC-Q101 qualified | Limited to low-voltage, non-automotive CAN applications; unsuitable for 12 V/24 V bus systems | Only viable for prototyping or non-automotive industrial CAN where voltage rating and qualification are not required |
Compared with VCAN26B2-03G-E3-18, VCAN26C2-03G-E3-18 offers identical form factor and qualification but tighter clamping tolerance, while TPD2E001DRYR sacrifices voltage rating and automotive compliance for lower cost in non-critical applications.
Availability
VCAN26B2-03G-E3-18 is available at Aetrix Electronics and suitable for automotive ECU design, industrial CAN gateway development, and EV battery management systems requiring stable component supply and long-term lifecycle support.
Supply support for VCAN26B2-03G-E3-18 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 Semiconductors is a global leader in discrete semiconductors, specializing in high-reliability diodes, MOSFETs, optoelectronics, and passive components for automotive, industrial, and computing markets.
The VCAN series targets high-speed serial bus protection, with VCAN26B2-03G-E3-18 engineered specifically for CAN FD compliance, low-capacitance signal preservation, and AEC-Q101 automotive qualification.
FAQ
Is VCAN26B2-03G-E3-18 still recommended for new designs?
No - Vishay explicitly marks VCAN26B2-03G-E3-18 as "Not For New Designs" and recommends VCAN26C2-03G-E3-18 as the designated alternative. The VCAN26B2-03G-E3-18 remains available for legacy production and repair, but new schematics should use the updated variant to ensure long-term supply and technical alignment.
What is the exact pin configuration and connection topology for VCAN26B2-03G-E3-18?
The VCAN26B2-03G-E3-18 uses a 3-pin SOT-323 package: Pin 1 protects Line 1 (e.g., CAN_H), Pin 2 protects Line 2 (e.g., CAN_L), and Pin 3 serves as the common reference terminal tied to ground. Both protection paths are bidirectional and symmetrical, with no anode/cathode polarity requirement.
Does VCAN26B2-03G-E3-18 meet AEC-Q101 requirements for automotive use?
Yes - VCAN26B2-03G-E3-18 is fully AEC-Q101 qualified, including stress testing for temperature cycling, high-temperature reverse bias (HTRB), and mechanical shock. This certification confirms its suitability for under-hood and body control module applications per automotive reliability standards.
How does the 3 pF capacitance of VCAN26B2-03G-E3-18 impact CAN FD signal integrity?
The 3 pF typical capacitance at 5 V ensures minimal loading on CAN FD differential pairs, preserving edge rates and reducing jitter. Measured clamping response and low capacitance allow reliable operation at 2–5 Mbps data rates without violating ISO 11898-2 timing budgets or inducing bit errors due to signal distortion.
What is the peak clamping voltage of VCAN26B2-03G-E3-18 under a 2 A transient?
The VCAN26B2-03G-E3-18 clamps to 40–50 V when subjected to a 2 A, 8/20 μs IEC 61000-4-5 surge pulse. This value is specified in the Absolute Maximum Ratings table and confirmed in Figure 4 of the datasheet, ensuring protected CAN transceivers see limited overvoltage stress during real-world surges.
VCAN26B2-03G-E3-18 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- SC-70, SOT-323
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 2
- Voltage - Reverse Standoff (Typ):
- 26.5V (Max)
- Voltage - Breakdown (Min):
- 28V
- Voltage - Clamping (Max) @ Ipp:
- 50V
- Current - Peak Pulse (10/1000µs):
- 2A (8/20µs)
- Power - Peak Pulse:
- 100W
- Power Line Protection:
- No
- Applications:
- CAN
- Capacitance @ Frequency:
- 4pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
VCAN26B2-03G-E3-18 FAQ
1.How can I place an order for VCAN26B2-03G-E3-18 through Aetrix?
Please submit a Request for Quotation (RFQ) for VCAN26B2-03G-E3-18 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 VCAN26B2-03G-E3-18 reliable?
The price and inventory of VCAN26B2-03G-E3-18 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VCAN26B2-03G-E3-18 is usually 5 days.
3.What payment methods are accepted for VCAN26B2-03G-E3-18?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VCAN26B2-03G-E3-18 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VCAN26B2-03G-E3-18?
VCAN26B2-03G-E3-18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VCAN26B2-03G-E3-18 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 VCAN26B2-03G-E3-18?
For technical support, including VCAN26B2-03G-E3-18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VCAN26B2-03G-E3-18 requirements.
6.How does Aetrix verify that VCAN26B2-03G-E3-18 is sourced from the original manufacturer or authorized distributors?
All VCAN26B2-03G-E3-18 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 VCAN26B2-03G-E3-18 meets industry standards.
7.What is the process for return or replacement of VCAN26B2-03G-E3-18?
All VCAN26B2-03G-E3-18 units undergo pre-shipment inspection (PSI). If there is an issue with VCAN26B2-03G-E3-18, 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 VCAN26B2-03G-E3-18 part is unused and in its original packaging.
Return procedure for VCAN26B2-03G-E3-18:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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