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Vishay General Semiconductor - Diodes Division VCAN26A2-03GHE3-08
- Part No.:
- VCAN26A2-03GHE3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- SC-70, SOT-323
- Datasheet:
-
VCAN26A2-03GHE3-08.pdf
- Description:
- TVS DIODE 26.5VWM 50VC SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:16,049
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Product details
Overview
VCAN26A2-03GHE3-08 from Vishay Semiconductors is a bidirectional symmetrical (BiSy) dual-line ESD protection diode in SOT-323 package, rated for ±26.5 V reverse stand-off voltage, <0.05 μA leakage current at VRWM, <13 pF load capacitance, and ±30 kV IEC 61000-4-2 contact/air discharge immunity - deployed in CAN bus physical layer interfaces for automotive and industrial control networks.
For engineers reviewing the VCAN26A2-03GHE3-08 datasheet, VCAN26A2-03GHE3-08 pinout, VCAN26A2-03GHE3-08 application, or VCAN26A2-03GHE3-08 equivalent, key selection criteria include clamping voltage under 3 A pulse (≤50 V), dual-channel matching capacitance (≤1.5 pF mismatch), AEC-Q101 qualification status, SOT-323 footprint compatibility, and ±26.5 V working range alignment with ISO 11898-2 CAN transceiver rails.
Technical Context
This device implements two independent, matched, bidirectional ESD protection paths between pins 1–3 and 2–3, each featuring low-capacitance silicon avalanche diode structures optimized for high-speed data lines. Its symmetrical breakdown (VBR = 28–32 V) and clamping behavior (VC ≤ 40 V @ 1 A, ≤50 V @ 3 A) ensure robust transient suppression without signal distortion on differential CAN H/L pairs.
The SOT-323 package enables placement directly at connector or transceiver I/O pads, with MSL Level 1 moisture sensitivity and peak reflow tolerance up to 260 °C. Thermal design supports continuous operation from –55 °C to +175 °C junction temperature, meeting automotive under-hood environmental requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Stand-off Voltage | ±26.5 V - defines maximum continuous DC voltage across protected line before leakage rises significantly; matches ISO 11898-2 common-mode range. |
| Peak Pulse Current (8/20 μs) | 3 A - maximum single-shot surge current per channel without failure; sufficient for IEC 61000-4-5 Level 3 (1 kV) system-level testing. |
| Clamping Voltage @ 3 A | ≤50 V - voltage seen by downstream CAN transceiver during worst-case surge; ensures safe margin below typical 54 V absolute max rating. |
| Diode Capacitance @ 0 V | 10–13 pF - low loading on 1 Mbps CAN signals; preserves signal edge integrity and minimizes bit error rate. |
| Capacitance Matching | ≤1.5 pF difference between channels - critical for maintaining differential impedance balance and common-mode noise rejection. |
| ESD Immunity | ±30 kV contact / ±30 kV air (IEC 61000-4-2) - exceeds automotive OEM requirements for connector-level ESD robustness. |
| AEC-Q101 Qualified | Yes (H3B class >8 kV HBM) - validated for automotive electronics use with full stress test reporting per AEC standard. |
Pinout & Package
SOT-323 package: 3-terminal surface-mount plastic package with gull-wing leads, 1.3 mm × 1.8 mm body, 0.65 mm lead pitch, MSL Level 1, RoHS-compliant e3 tin plating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode of Channel 1 | Connects to CAN_H line; forms first bidirectional ESD path with Pin 3 (common cathode). |
| Pin 2 | Anode of Channel 2 | Connects to CAN_L line; forms second bidirectional ESD path with Pin 3 (common cathode). |
| Pin 3 | Common Cathode | Shared cathode node tied to ground plane; enables compact dual-channel layout with single ground connection. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional Symmetrical Protection | Enables identical clamping performance for positive and negative transients on both CAN_H and CAN_L - eliminates polarity-sensitive layout constraints. |
| Low Capacitance Matching | ≤1.5 pF inter-channel capacitance mismatch preserves differential signal symmetry and reduces common-mode conversion in high-noise environments. |
| AEC-Q101 Qualification | Validated for automotive applications including engine control, body electronics, and ADAS sensor networks requiring long-term reliability under thermal cycling and vibration. |
| High-Temperature Operation | Junction temperature rating up to +175 °C supports placement near powertrain ECUs or under-hood modules without derating. |
| Small SOT-323 Footprint | Minimizes PCB real estate and parasitic inductance - critical for effective high-frequency ESD suppression at connector entry points. |
Applications
| Automotive CAN Bus Interface | Industrial Fieldbus Node |
|---|---|
Use Scenario: Protection of CAN_H/CAN_L lines at OBD-II connector or gateway module I/O against ESD events during vehicle service or cable mating. IC Role / Device Role / Timing Role: Dual-channel transient voltage suppressor placed between connector and CAN transceiver, operating as passive clamp during sub-100 ns ESD pulses. Use Value: Prevents latch-up or permanent damage to ISO 11898-2 compliant transceivers (e.g., TJA1042, SN65HVD230) while maintaining 1 Mbps signal integrity via <13 pF loading. |
Use Scenario: ESD hardening of RS-485/CAN-based PROFIBUS or DeviceNet nodes in factory automation cabinets exposed to operator touch and relay switching noise. IC Role / Device Role / Timing Role: Bidirectional line protector on differential bus pairs, referenced to local chassis ground with common-cathode architecture. Use Value: Enables compliance with IEC 61000-4-2 Level 4 (±8 kV contact) without adding series resistance or degrading rise time due to ultra-low capacitance. |
| Heavy-Duty Vehicle Telematics | Off-Highway Equipment Control |
Use Scenario: Securing CAN FD links in telematics control units mounted in cab environments subject to wide ambient temperature swings (–40 °C to +85 °C ambient). IC Role / Device Role / Timing Role: High-reliability ESD guard for 2 Mbps CAN FD physical layer, leveraging ±175 °C TJ max rating for extended thermal margin. Use Value: Eliminates need for derating or thermal shielding while sustaining ±30 kV ESD immunity across full automotive temperature range. |
Use Scenario: Protecting J1939-compliant engine control modules in construction or agricultural machinery where connectors are frequently mated/demated in dusty, high-vibration conditions. IC Role / Device Role / Timing Role: Dual-line transient suppressor with matched capacitance ensuring balanced differential signaling despite mechanical wear-induced impedance asymmetry. Use Value: Maintains EMC robustness over product lifetime by preventing cumulative degradation of transceiver input stages from repeated low-energy ESD exposure. |
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 CD (15 pF), same SOT-323 package and ±30 kV ESD rating. | Designed for 5 V logic buses (USB, GPIO); unsuitable for 24 V CAN due to premature conduction. | Select only for low-voltage digital interfaces - not a functional substitute for VCAN26A2-03GHE3-08 in CAN systems. |
| LITTELFUSE SP1003-03HTG | Higher VRWM (33 V), slightly higher VC (≤55 V @ 3 A), same dual-channel BiSy topology and AEC-Q101 qualification. | Targeted at 24 V commercial vehicle CAN; broader voltage margin but less optimal clamping for 26.5 V nominal rails. | Acceptable alternative if system tolerates higher clamping voltage and requires extended overvoltage headroom. |
Compared with RCLAMP0524P.TCT and SP1003-03HTG, VCAN26A2-03GHE3-08 delivers optimal voltage alignment (±26.5 V) and lowest clamping (≤50 V @ 3 A) for ISO 11898-2 CAN, with tighter capacitance matching (≤1.5 pF) critical for high-fidelity differential signaling.
Availability
VCAN26A2-03GHE3-08 is available at Aetrix Electronics and suitable for automotive ECU design, industrial fieldbus node development, and heavy-duty vehicle telematics requiring stable component supply with guaranteed long-term sourcing.
Supply support for VCAN26A2-03GHE3-08 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 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 designed specifically for CAN bus physical layer protection, emphasizing low capacitance, precise voltage thresholds, and AEC-Q101 validation to meet stringent automotive EMC and durability requirements.
FAQ
What is the maximum clamping voltage of the VCAN26A2-03GHE3-08 under a 3 A IEC 61000-4-5 surge?
The VCAN26A2-03GHE3-08 exhibits a maximum clamping voltage of 50 V when subjected to a 3 A, 8/20 μs peak pulse current per channel, as specified in its Electrical Characteristics table. This value ensures safe operation with ISO 11898-2 transceivers that typically feature 54 V absolute maximum ratings on their I/O pins. The clamping performance is verified across temperature and process variations per Vishay's qualification testing.
Is the VCAN26A2-03GHE3-08 qualified to AEC-Q101, and what does that qualification cover?
Yes, the VCAN26A2-03GHE3-08 is AEC-Q101 qualified, specifically meeting Class H3B for human body model (HBM) ESD with >8 kV rating. The qualification includes full stress testing per AEC-Q101 Rev D: HTGB, AC/DC life test, temperature cycling, mechanical shock, and ESD robustness. This confirms suitability for automotive applications such as powertrain, chassis, and body electronics where long-term reliability under thermal and mechanical stress is mandatory.
How does the capacitance matching specification benefit CAN bus performance?
The VCAN26A2-03GHE3-08 guarantees ≤1.5 pF difference in capacitance between its two protection channels (CD13 vs. CD23). This tight matching preserves differential impedance balance on CAN_H/CAN_L lines, minimizing common-mode conversion and signal skew - critical for maintaining waveform fidelity at 1 Mbps and enabling reliable operation in electrically noisy environments like automotive powertrains or industrial motor drives.
Can the VCAN26A2-03GHE3-08 be used in CAN FD applications?
Yes, the VCAN26A2-03GHE3-08 supports CAN FD applications up to 2 Mbps due to its low 10–13 pF capacitance and fast response time (<1 ns), which prevent signal degradation on high-speed edges. Its ±26.5 V working range aligns with CAN FD transceivers operating on 24 V supply rails, and its clamping behavior remains effective under fast-rising transients typical of modern vehicle networks.
What is the recommended PCB layout practice for the VCAN26A2-03GHE3-08 in a CAN interface?
Place the VCAN26A2-03GHE3-08 as close as possible to the CAN connector or transceiver I/O pins, with short, symmetric traces to Pins 1 and 2 and a low-inductance ground connection to Pin 3. Use a solid ground plane beneath the device, avoid vias in protection paths, and follow Vishay's recommended SOT-323 footprint (Document No. 6.541-5040.02-4) to ensure thermal and electrical performance consistency across manufacturing lots.
VCAN26A2-03GHE3-08 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- SC-70, SOT-323
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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):
- 3A (8/20µs)
- Power - Peak Pulse:
- 150W
- Power Line Protection:
- No
- Applications:
- CAN
- Capacitance @ Frequency:
- 10pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
VCAN26A2-03GHE3-08 FAQ
1.How can I place an order for VCAN26A2-03GHE3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for VCAN26A2-03GHE3-08 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 VCAN26A2-03GHE3-08 reliable?
The price and inventory of VCAN26A2-03GHE3-08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VCAN26A2-03GHE3-08 is usually 5 days.
3.What payment methods are accepted for VCAN26A2-03GHE3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VCAN26A2-03GHE3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VCAN26A2-03GHE3-08?
VCAN26A2-03GHE3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VCAN26A2-03GHE3-08 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 VCAN26A2-03GHE3-08?
For technical support, including VCAN26A2-03GHE3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VCAN26A2-03GHE3-08 requirements.
6.How does Aetrix verify that VCAN26A2-03GHE3-08 is sourced from the original manufacturer or authorized distributors?
All VCAN26A2-03GHE3-08 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 VCAN26A2-03GHE3-08 meets industry standards.
7.What is the process for return or replacement of VCAN26A2-03GHE3-08?
All VCAN26A2-03GHE3-08 units undergo pre-shipment inspection (PSI). If there is an issue with VCAN26A2-03GHE3-08, 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 VCAN26A2-03GHE3-08 part is unused and in its original packaging.
Return procedure for VCAN26A2-03GHE3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VCAN26A2-03GHE3-08 Tags
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