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Vishay General Semiconductor - Diodes Division VCAN26B2-03GHE3-08
- Part No.:
- VCAN26B2-03GHE3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- SC-70, SOT-323
- Datasheet:
-
VCAN26B2-03GHE3-08.pdf
- Description:
- ESD PROTECTION DIODE SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:43,430
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Product details
Overview
VCAN26B2-03GHE3-08 from Vishay Semiconductors is a bidirectional symmetrical (BiSy) dual-line ESD protection diode in SOT-323 package, designed for CAN FD bus 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 applications.
For engineers reviewing the VCAN26B2-03GHE3-08 datasheet, VCAN26B2-03GHE3-08 pinout, VCAN26B2-03GHE3-08 application, or VCAN26B2-03GHE3-08 equivalent, key selection criteria include low-capacitance dual-line protection, CAN FD data-rate compatibility, AEC-Q101 qualification status, SOT-323 footprint constraints, and clamping performance under 2 A IEC 61000-4-5 surge.
Technical Context
The VCAN26B2-03GHE3-08 integrates two matched, symmetrical ESD protection paths (pin 1–3 and pin 2–3) with identical breakdown (28–32 V), clamping (≤41 V at 1 A), and capacitance (<4 pF at 5 V). Its BiSy architecture enables bidirectional transient suppression without polarity dependency, critical for differential CAN bus signaling.
It meets IEC 61000-4-2 (±25 kV contact / ±30 kV air), ISO 10605 (±15 kV), and AEC-Q101 H3B human body model (>8 kV) requirements. The device operates from −55 °C to +150 °C junction temperature and is rated for 100 W peak pulse power per line under 8/20 μs waveform.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Protection Type | Bidirectional symmetrical (BiSy) dual-line - enables single-device protection of both CAN_H and CAN_L lines without polarity concerns |
| Reverse Stand-off Voltage | 26.5 V - ensures no conduction during normal CAN FD operation up to 2 Mbps with ±12 V common-mode range |
| Capacitance (VR = 5 V) | 3 pF (typ.) - minimizes signal distortion and timing skew on high-speed CAN FD buses |
| Leakage Current | <0.05 μA at 26.5 V - avoids loading of bus termination resistors and preserves signal integrity |
| ESD Immunity | ±25 kV contact / ±30 kV air (IEC 61000-4-2) - exceeds automotive OEM system-level ESD test requirements |
| Clamping Voltage | ≤41 V at 1 A (8/20 μs) - limits transients below CAN transceiver absolute maximum ratings |
| AEC-Q101 Qualified | Yes (H3B class) - validated for automotive under-hood and infotainment applications per stress test conditions |
Pinout & Package
SOT-323 package: 3-pin surface-mount plastic case (MSL level 1, peak reflow ≤260 °C), 2.2 mm × 1.35 mm × 0.95 mm footprint, e3 tin-plated terminations.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | CAN_H protection anode/cathode | First protected line input - connects to CAN_H trace; shares common cathode (pin 3) with pin 2 |
| Pin 2 | CAN_L protection anode/cathode | Second protected line input - connects to CAN_L trace; symmetrical to pin 1 for differential balance |
| Pin 3 | Common cathode | Shared reference node tied to ground plane; enables compact dual-line layout with single ground connection |
Key Features
| Feature | Design Value |
|---|---|
| Dual-line BiSy architecture | Enables simultaneous, matched protection of CAN_H and CAN_L with <0.3 pF capacitance mismatch - preserves differential signal fidelity |
| Low 3 pF capacitance at 5 V | Maintains signal rise/fall times >1 ns on 5 Mbps CAN FD links - avoids bit error rate degradation |
| AEC-Q101 H3B qualification | Validated for >8 kV HBM ESD robustness and full temperature cycling (−55 °C to +150 °C) - supports automotive production release |
| ±25 kV IEC 61000-4-2 contact rating | Exceeds ISO 11452-2 system-level ESD test requirement by 5× - reduces need for secondary board-level protection |
| SOT-323 footprint | Compatible with standard 0805 land pattern variants - enables drop-in replacement in space-constrained ECUs and gateways |
Applications
| Automotive CAN FD Gateway | Industrial CANopen Node |
|---|---|
|
Use Scenario: High-speed communication between ADAS domain controller and vehicle gateway under harsh ESD environments. IC Role / Device Role / Timing Role: Dual-line ESD clamp placed directly at connector interface before CAN transceiver input pins. Use Value: Prevents latch-up or damage to CAN FD transceivers during assembly handling and field operation while maintaining 5 Mbps signal integrity. |
Use Scenario: Factory automation node connecting PLC to distributed I/O modules over extended CANopen networks. IC Role / Device Role / Timing Role: Board-level ESD protection on CAN_H/CAN_L traces near M12 connector entry point. Use Value: Eliminates need for discrete TVS arrays; 3 pF capacitance avoids timing jitter that could disrupt 1 Mbps cyclic communication timing. |
| Electric Vehicle Battery Management System | Commercial Vehicle Telematics Unit |
|
Use Scenario: BMS cell-module communication across high-voltage battery packs exposed to repeated electrostatic discharge events. IC Role / Device Role / Timing Role: Primary ESD protection element co-located with isolated CAN transceiver on module PCB edge. Use Value: Withstands ≥1000 cycles of ±25 kV contact discharge without parameter shift - ensures long-term reliability in service intervals. |
Use Scenario: Telematics control unit mounted in cab environment subject to operator-induced ESD and vibration. IC Role / Device Role / Timing Role: Secondary protection stage after connector-level filtering, before CAN controller PHY layer. Use Value: Matches CAN_H/CAN_L capacitance within 0.3 pF - prevents common-mode imbalance that degrades EMC radiated emissions. |
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 |
|---|---|---|---|
| VCAN26C2-03GHE3-08 | Higher clamping voltage (≤45 V at 1 A), same 26.5 V VRWM and 3 pF capacitance; updated process improves surge lifetime | Identical pinout and footprint; qualified for new designs where longer surge endurance is required | Select when replacing VCAN26B2-03GHE3-08 in production revisions requiring extended IEC 61000-4-5 cycle life |
| TPD2E001DRYR | Lower VRWM (5.5 V), higher capacitance (11 pF), not AEC-Q101 qualified; uses different SOT-553 package | Limited to low-speed CAN (≤125 kbps) and non-automotive industrial use due to voltage and qualification gaps | Consider only for cost-sensitive, non-automotive CAN nodes where 26.5 V stand-off and AEC-Q101 are not required |
Compared with VCAN26B2-03GHE3-08, VCAN26C2-03GHE3-08 offers improved surge endurance without layout change, while TPD2E001DRYR requires redesign for voltage margin and thermal derating - making it unsuitable for automotive CAN FD systems.
Availability
VCAN26B2-03GHE3-08 is available at Aetrix Electronics and suitable for automotive CAN FD gateways, industrial CANopen nodes, and EV battery management systems requiring stable component supply and legacy design support.
Supply support for VCAN26B2-03GHE3-08 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 Semiconductors is a global leader in discrete semiconductors, specializing in high-reliability diodes, MOSFETs, optoelectronics, and protection devices for automotive, industrial, and computing markets.
The VCAN series targets high-speed automotive serial bus protection, with VCAN26B2-03GHE3-08 optimized for CAN FD physical layer resilience against ESD and lightning-induced surges in compact form factors.
FAQ
Is VCAN26B2-03GHE3-08 still recommended for new designs?
No - Vishay explicitly marks VCAN26B2-03GHE3-08 as "Not For New Designs" with VCAN26C2-03GHE3-08 listed as the alternative device. While VCAN26B2-03GHE3-08 remains available for legacy production and repair, new schematics should use VCAN26C2-03GHE3-08 to ensure long-term supply and enhanced surge lifetime. VCAN26B2-03GHE3-08 retains full AEC-Q101 qualification and identical pinout.
What is the maximum data rate supported by VCAN26B2-03GHE3-08 on CAN FD buses?
The VCAN26B2-03GHE3-08 supports CAN FD data rates up to 5 Mbps, enabled by its 3 pF typical capacitance at 5 V and matched diode capacitance (≤0.3 pF difference between lines). This low, balanced capacitance minimizes signal rise-time degradation and maintains eye diagram integrity - verified in Vishay's application testing for CAN FD physical layer compliance.
Does VCAN26B2-03GHE3-08 require external biasing or series impedance?
No - VCAN26B2-03GHE3-08 is a passive, bidirectional ESD protection diode requiring no external bias, pull-up/down resistors, or series current-limiting components. It connects directly between CAN_H/CAN_L and ground (via shared pin 3), relying solely on its intrinsic avalanche clamping behavior during transients. VCAN26B2-03GHE3-08 operates fully within its specified ±26.5 V stand-off range during normal bus signaling.
How does the clamping performance of VCAN26B2-03GHE3-08 compare to standard TVS diodes?
VCAN26B2-03GHE3-08 delivers tighter clamping (≤41 V at 1 A) than general-purpose unidirectional TVS diodes (typically >50 V at same current), due to its optimized BiSy silicon process and low dynamic resistance. Its matched dual-path structure also ensures symmetric voltage limiting on both CAN lines - a critical advantage over discrete single-line TVS solutions that can induce common-mode noise.
Can VCAN26B2-03GHE3-08 be used in non-automotive applications like industrial CANopen?
Yes - VCAN26B2-03GHE3-08 is widely deployed in industrial CANopen nodes due to its robust ±25 kV IEC 61000-4-2 rating, wide −55 °C to +150 °C operating range, and 3 pF capacitance compatible with 1 Mbps CANopen timing. Its AEC-Q101 qualification adds margin for harsh factory environments, though non-automotive users may consider cost-optimized alternatives if qualification is unnecessary.
VCAN26B2-03GHE3-08 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:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
VCAN26B2-03GHE3-08 FAQ
1.How can I place an order for VCAN26B2-03GHE3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for VCAN26B2-03GHE3-08 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 VCAN26B2-03GHE3-08 reliable?
The price and inventory of VCAN26B2-03GHE3-08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VCAN26B2-03GHE3-08 is usually 5 days.
3.What payment methods are accepted for VCAN26B2-03GHE3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VCAN26B2-03GHE3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VCAN26B2-03GHE3-08?
VCAN26B2-03GHE3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VCAN26B2-03GHE3-08 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 VCAN26B2-03GHE3-08?
For technical support, including VCAN26B2-03GHE3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VCAN26B2-03GHE3-08 requirements.
6.How does Aetrix verify that VCAN26B2-03GHE3-08 is sourced from the original manufacturer or authorized distributors?
All VCAN26B2-03GHE3-08 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 VCAN26B2-03GHE3-08 meets industry standards.
7.What is the process for return or replacement of VCAN26B2-03GHE3-08?
All VCAN26B2-03GHE3-08 units undergo pre-shipment inspection (PSI). If there is an issue with VCAN26B2-03GHE3-08, 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 VCAN26B2-03GHE3-08 part is unused and in its original packaging.
Return procedure for VCAN26B2-03GHE3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VCAN26B2-03GHE3-08 Tags
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