My Inquiry
My Account
Vishay General Semiconductor - Diodes Division VCAN33C2-03G-E3-18
- Part No.:
- VCAN33C2-03G-E3-18
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- SC-70, SOT-323
- Datasheet:
-
VCAN33C2-03G-E3-18.pdf
- Description:
- BIDIRECTIONAL DIODE 33V;IR=0.05U
- Quantity:
- Payment:
- Shipping:
Inventory:10,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
VCAN33C2-03G-E3-18 from Vishay Semiconductors is a bidirectional symmetrical (BiSy) dual-line ESD protection diode in SOT-323 package, designed for CAN FD and FLEX-bus interfaces. It provides ±33 V reverse stand-off voltage, <0.05 μA leakage current at 33 V, <5.2 pF capacitance at 5 V, ±30 kV IEC 61000-4-2 contact/air discharge immunity, and AEC-Q101 qualification for automotive-grade robustness.
For engineers reviewing the VCAN33C2-03G-E3-18 datasheet, VCAN33C2-03G-E3-18 pinout, VCAN33C2-03G-E3-18 application, or VCAN33C2-03G-E3-18 equivalent, key selection criteria include low-capacitance dual-line protection, CAN FD signal integrity preservation, AEC-Q101 compliance, SOT-323 footprint compatibility, and clamping performance under 2 A IEC 61000-4-5 surge.
Technical Context
This device implements a symmetrical dual-channel TVS architecture with matched diode pairs (pins 1–3 and 2–3), enabling bidirectional transient suppression on two independent data lines without polarity constraints. Its BiSy design ensures identical clamping behavior for positive and negative transients, critical for differential bus protocols like CAN FD.
The SOT-323 package supports high-density PCB layouts while maintaining thermal capability for 120 W peak pulse power (8/20 μs) and junction temperatures up to +175 °C. The e3 tin-plated terminations comply with RoHS and support lead-free reflow per J-STD-020 MSL level 1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Stand-off Voltage | 33 V - Maximum continuous working voltage before conduction; sets operating margin for 24 V automotive CAN buses. |
| Clamping Voltage (1 A) | 43–47 V - Limits transient voltage seen by downstream CAN transceiver during 8/20 μs surges. |
| Clamping Voltage (2 A) | 50–60 V - Maintains safe stress levels under worst-case IEC 61000-4-5 line surge events. |
| Capacitance (5 V) | 4.2–5.2 pF - Minimizes signal distortion and timing skew on high-speed CAN FD (up to 5 Mbps) lines. |
| ESD Immunity | ±30 kV contact / ±30 kV air - Meets IEC 61000-4-2 Level 4 for system-level ESD robustness. |
| Leakage Current | <0.05 μA at 33 V - Prevents DC loading of CAN bus termination resistors and preserves bus bias stability. |
| Operating Temperature | −55 °C to +175 °C - Supports under-hood automotive deployment and extended industrial environments. |
Pinout & Package
SOT-323 package: 3-pin surface-mount plastic case (2.2 mm × 1.35 mm × 0.95 mm), e3 tin-plated terminations, MSL level 1, compatible with standard 8 mm tape-and-reel handling (E3-18 = 10K per 13″ reel).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode of Channel 1 | Connects to first protected data line (e.g., CAN_H); forms symmetrical clamp path with Pin 3. |
| Pin 2 | Anode of Channel 2 | Connects to second protected data line (e.g., CAN_L); independent but matched clamp path with Pin 3. |
| Pin 3 | Cathode (Common) | Shared cathode node tied to ground or chassis; enables compact dual-line layout with single reference point. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional Symmetrical (BiSy) Clamping | Identical forward/reverse breakdown and clamping for both channels ensures balanced transient response on differential buses. |
| Dual-Line Protection in Single Package | Reduces PCB area by >40% vs. discrete dual-diode solutions and eliminates channel-to-channel capacitance mismatch. |
| Low Capacitance Matching (≤2%) | CD13 vs. CD23 variation ≤2% at 5 V enables precise differential signal integrity retention in CAN FD physical layer. |
| AEC-Q101 Qualified | Validated for automotive applications including engine control units, body electronics, and ADAS domain controllers. |
| e3 Tin Plating | RoHS-compliant, lead-free terminations rated for peak reflow up to 260 °C with no solderability degradation. |
Applications
| Automotive CAN FD Networks | FLEX-bus Industrial Control |
|---|---|
Use Scenario: Protecting high-speed CAN FD communication between ECU and ADAS sensors in vehicles operating at 2–5 Mbps. IC Role / Device Role / Timing Role: Dual-line transient voltage suppressor placed at connector interface to shunt ESD and load-dump energy before CAN transceiver input. Use Value: Maintains signal rise/fall times <1 ns and jitter <50 ps due to sub-5.2 pF line capacitance and matched diodes. | Use Scenario: Safeguarding FLEX-bus nodes in factory automation PLCs exposed to relay switching noise and cable coupling transients. IC Role / Device Role / Timing Role: Front-end ESD guard for bidirectional FLEX-bus data pairs, referenced to local chassis ground via Pin 3. Use Value: Enables reliable operation at 10 Mbps with ≤0.05 μA leakage preserving bus bias across 120 Ω termination networks. |
| Body Electronics Gateways | Commercial Vehicle Telematics |
Use Scenario: Securing LIN/CAN gateway modules integrating multiple vehicle subsystems in door modules and lighting control units. IC Role / Device Role / Timing Role: Dual-channel protector for CAN_H/CAN_L lines entering mixed-signal SoC, minimizing board space and BOM count. Use Value: Delivers ±30 kV ESD immunity without degrading CAN bit timing or requiring additional RC filtering. | Use Scenario: Hardening telematics control units (TCUs) against roadside ESD events and alternator-induced surges in heavy-duty trucks. IC Role / Device Role / Timing Role: Primary transient suppressor on OBD-II and cellular modem interface lines, qualified for −40 °C to +125 °C ambient. Use Value: Supports 175 °C junction temperature rating for sustained operation near engine compartments and battery enclosures. |
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 capacitance (12 pF), unidirectional configuration | Targeted at 3.3 V/5 V logic I/O, not automotive CAN buses | Select only for low-voltage digital interfaces where 33 V standoff is unnecessary. |
| LITTELFUSE SP3205-01UTG | Same 33 V VRWM, but asymmetric (unidirectional) dual-channel; higher IR (1 μA) | Requires external biasing for bidirectional use; less suitable for true differential buses | Prefer VCAN33C2-03G-E3-18 when BiSy symmetry and sub-0.05 μA leakage are required. |
Compared with RCLAMP0524P.TCT and SP3205-01UTG, VCAN33C2-03G-E3-18 uniquely delivers matched bidirectional clamping, ultra-low leakage, and AEC-Q101 qualification-making it the only choice for CAN FD and FLEX-bus systems demanding automotive-grade reliability and signal fidelity.
Availability
VCAN33C2-03G-E3-18 is available at Aetrix Electronics and suitable for automotive CAN FD networks, industrial FLEX-bus control systems, and commercial vehicle telematics requiring stable component supply, long-term lifecycle assurance, and AEC-Q101-compliant sourcing.
Supply support for VCAN33C2-03G-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 Intertechnology is a global manufacturer of discrete semiconductors and passive components, founded in 1962 and headquartered in Malvern, PA, with R&D and manufacturing operations worldwide.
The VCAN series targets high-reliability automotive and industrial serial bus protection, specifically engineered to meet stringent ESD, surge, and temperature requirements of CAN FD, FLEX-bus, and other differential communication standards.
FAQ
What is the primary function of the VCAN33C2-03G-E3-18 in a CAN FD system?
The VCAN33C2-03G-E3-18 serves as a bidirectional ESD and surge protection device for CAN FD data lines, placed at the connector interface to clamp transients before they reach the CAN transceiver. Its matched dual-channel structure, 33 V stand-off, and sub-5.2 pF capacitance preserve signal integrity at speeds up to 5 Mbps while meeting IEC 61000-4-2 ±30 kV and AEC-Q101 requirements.
Does the VCAN33C2-03G-E3-18 support bidirectional signal flow on both protected lines?
Yes - the VCAN33C2-03G-E3-18 uses a symmetrical (BiSy) architecture with identical forward and reverse characteristics on both channels (Pin 1–3 and Pin 2–3). This enables true bidirectional transient suppression without polarity sensitivity, making it ideal for differential buses like CAN FD and FLEX-bus where signal direction changes dynamically.
What is the maximum peak pulse current the VCAN33C2-03G-E3-18 can handle per channel?
The VCAN33C2-03G-E3-18 is rated for 2 A peak pulse current (IPPM) per protection path (Pin 1–3 or Pin 2–3) under IEC 61000-4-5 8/20 μs waveform conditions. At this current, its clamping voltage remains within 50–60 V, ensuring downstream CAN transceivers stay below absolute maximum ratings during surge events.
Is the VCAN33C2-03G-E3-18 compatible with lead-free reflow processes?
Yes - the VCAN33C2-03G-E3-18 features e3 tin-plated terminations and is qualified for lead-free reflow with a peak temperature tolerance of up to 260 °C, compliant with J-STD-020 MSL level 1. Its SOT-323 package is fully compatible with standard 8 mm tape-and-reel automated placement equipment.
How does the capacitance matching specification benefit CAN FD implementations?
The VCAN33C2-03G-E3-18 guarantees ≤2% capacitance mismatch (dCD) between its two channels at 5 V reverse bias. This tight matching minimizes differential-to-common-mode conversion, reduces timing skew on CAN_H/CAN_L pairs, and prevents signal integrity degradation - a critical requirement for error-free operation at CAN FD's 2–5 Mbps data rates.
VCAN33C2-03G-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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 2
- Voltage - Reverse Standoff (Typ):
- 33V (Max)
- Voltage - Breakdown (Min):
- 36V
- Voltage - Clamping (Max) @ Ipp:
- 60V
- Current - Peak Pulse (10/1000µs):
- 2A (8/20µs)
- Power - Peak Pulse:
- 120W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 6pF @ 1MHz
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
VCAN33C2-03G-E3-18 FAQ
1.How can I place an order for VCAN33C2-03G-E3-18 through Aetrix?
Please submit a Request for Quotation (RFQ) for VCAN33C2-03G-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 VCAN33C2-03G-E3-18 reliable?
The price and inventory of VCAN33C2-03G-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 VCAN33C2-03G-E3-18 is usually 5 days.
3.What payment methods are accepted for VCAN33C2-03G-E3-18?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VCAN33C2-03G-E3-18 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VCAN33C2-03G-E3-18?
VCAN33C2-03G-E3-18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VCAN33C2-03G-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 VCAN33C2-03G-E3-18?
For technical support, including VCAN33C2-03G-E3-18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VCAN33C2-03G-E3-18 requirements.
6.How does Aetrix verify that VCAN33C2-03G-E3-18 is sourced from the original manufacturer or authorized distributors?
All VCAN33C2-03G-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 VCAN33C2-03G-E3-18 meets industry standards.
7.What is the process for return or replacement of VCAN33C2-03G-E3-18?
All VCAN33C2-03G-E3-18 units undergo pre-shipment inspection (PSI). If there is an issue with VCAN33C2-03G-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 VCAN33C2-03G-E3-18 part is unused and in its original packaging.
Return procedure for VCAN33C2-03G-E3-18:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VCAN33C2-03G-E3-18 Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
