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STMicroelectronics ESDCAN02-2BWY
- Part No.:
- ESDCAN02-2BWY
- Manufacturer:
- STMicroelectronics
- Category:
- TVS Diodes
- Package:
- SC-70, SOT-323
- Datasheet:
-
ESDCAN02-2BWY.pdf
- Description:
- TVS DIODE 26.5VWM 44VC SOT323-3
- Quantity:
- Payment:
- Shipping:
Inventory:97,082
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Product details
Overview
ESDCAN02-2BWY from STMicroelectronics is an AEC-Q101-qualified dual-line transient voltage suppressor (TVS) designed for bidirectional ESD and EOS protection of CAN H and CAN L signal lines in automotive networks. It features a breakdown voltage (VBR) of 28.5 V, clamping voltage (VCL) of 44 V at 3.7 A (8/20 µs), junction capacitance of 3 pF, and supports ISO 10605 ±30 kV contact/air discharge. It is deployed in high-speed CAN FD and LIN bus interfaces where low capacitance and fast response are critical.
For engineers reviewing the ESDCAN02-2BWY datasheet, ESDCAN02-2BWY pinout, ESDCAN02-2BWY application, or ESDCAN02-2BWY equivalent, key selection criteria include its SOT323-3L package footprint, 3 pF line-to-ground capacitance, -55 °C to +175 °C operating junction temperature, compliance with ISO 7637-3 Pulse 3a/3b, and verified performance under IEC 61000-4-4 EFT 4 kV.
Technical Context
This dual-channel TVS integrates two identical, symmetrically configured avalanche diodes in a single SOT323-3L package - one between CAN H and GND, the other between CAN L and GND - enabling simultaneous protection of both differential bus lines without polarity dependence. Its low dynamic impedance ensures rapid clamping during ISO 10605 ESD events and ISO 7637-3 load-dump transients.
The device operates with a stand-off voltage of 26.5 V (min), VBR = 28.5 V (typ), and achieves VCL = 44 V at 3.7 A peak pulse current (8/20 µs), delivering a clamping factor (VCL/VBR) of ~1.54. Its 3 pF capacitance per line preserves signal integrity on CAN FD buses up to 5 Mbps and supports compatibility with FlexRay and future CAN XL physical layers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min) | 26.5 V - Ensures reliable conduction onset above normal CAN bus common-mode range (±12 V) |
| VBR (typ) | 28.5 V - Matches automotive supply rail margins while avoiding false triggering |
| VCL @ 3.7 A | 44 V - Limits transient overvoltage to safe levels for CAN transceivers (e.g., TJA1042, SN65HVD230) |
| Junction capacitance | 3 pF - Enables <5 Mbps CAN FD operation with minimal signal rise-time degradation |
| ESD rating | ±30 kV (IEC 61000-4-2, contact/air) - Exceeds ISO 10605 Level 4 for robustness in assembly and field environments |
| Operating Tj | -55 °C to +175 °C - Supports placement near engine compartments or powertrain ECUs |
| Package | SOT323-3L - Standardized JEDEC footprint compatible with automated SMT assembly and IPC-7351B land patterns |
Pinout & Package
SOT323-3L is a 3-pin, surface-mount plastic package with gull-wing leads, JEDEC registered (MO-203AA), MSL Level 1, and ECOPACK2 RoHS-compliant construction. Dimensions: D = 2.00 mm (max), E = 1.25 mm (typ), e = 0.65 mm (typ), L = 0.20 mm (typ).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | CAN H connection | Anode of first TVS diode - connects directly to CAN H signal trace before transceiver |
| Pin 2 | GND | Common cathode node - ties both TVS diodes to chassis or signal ground plane |
| Pin 3 | CAN L connection | Anode of second TVS diode - connects directly to CAN L signal trace before transceiver |
Key Features
| Feature | Design Value |
|---|---|
| Dual-line symmetric protection | Independent, matched TVS paths for CAN H and CAN L preserve differential signaling integrity during transients |
| Low clamping factor (VCL/VBR ≈ 1.54) | Minimizes stress on downstream CAN transceiver I/O cells during 3.7 A surge events |
| 3 pF line-to-ground capacitance | Reduces insertion loss and maintains >90% signal amplitude at 10 MHz for CAN FD timing budgets |
| AEC-Q101 qualification | Validated for automotive under-hood deployment including temperature cycling, humidity bias, and mechanical shock |
| ISO 7637-3 Pulse 3a/3b compliance | Withstands -150 V / +150 V fast-edge transients without latch-up or parametric shift |
Applications
| Body Control Module (BCM) | Advanced Driver Assistance Systems (ADAS) Camera Link |
|---|---|
Use Scenario: Protecting CAN communication between door modules, lighting controllers, and central gateway in harsh 12 V vehicle electrical environments. IC Role / Device Role: Front-end transient suppression for TJA1055/TJA1043 transceivers against jump-start, reverse-battery, and ESD events. Use Value: Prevents bus lockup during ±30 kV ESD exposure and sustains CAN FD data rates up to 2 Mbps without signal distortion. | Use Scenario: Securing high-speed CAN FD links between radar sensors and domain controllers in ADAS sensor fusion architectures. IC Role / Device Role: Low-capacitance ESD clamp placed immediately upstream of MAX33040E or TCAN1042H transceivers. Use Value: Maintains <100 ps skew between CAN H/L lines while suppressing ISO 10605 ±30 kV discharges that would otherwise corrupt frame CRCs. |
| Electric Power Steering (EPS) ECU | Automotive Gateway Module |
Use Scenario: Safeguarding CAN communication between torque sensor, motor driver, and MCU in safety-critical steering control loops. IC Role / Device Role: Dual-line TVS co-located with transceiver to limit transient-induced bit errors during ISO 7637-3 Pulse 2a (±85 V) load dump recovery. Use Value: Guarantees <1 µs response time and <44 V clamping to prevent MCU reset or transceiver latch-up during power system faults. | Use Scenario: Enabling robust multi-bus bridging (CAN FD ↔ LIN ↔ Ethernet) in zonal architecture gateways exposed to diverse EMI sources. IC Role / Device Role: First-stage protection for CAN FD ports handling firmware updates and OTA diagnostics traffic. Use Value: Delivers 170 W peak pulse power handling (8/20 µs) while maintaining 3 pF capacitance to avoid violating CAN XL pre-sampling window requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-line CAN bus TVS applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NUP4202MR6T1G | Higher capacitance (12 pF), lower VBR (14 V), rated for 12 V systems only | Limited to legacy CAN (≤1 Mbps); unsuitable for CAN FD or LIN due to bandwidth restriction | Select only for cost-sensitive 12 V body electronics with no high-speed bus requirements |
| TPD2E001DRYR | Single-line configuration, 3.5 pF, 5 V VBR, not AEC-Q101 qualified | Requires two devices per CAN pair; lacks automotive qualification and ISO 7637-3 Pulse 3a/3b validation | Acceptable for non-automotive industrial CAN nodes but not for OEM production |
Compared with NUP4202MR6T1G and TPD2E001DRYR, ESDCAN02-2BWY uniquely combines AEC-Q101 qualification, 3 pF capacitance, 28.5 V VBR, and full ISO 7637-3 Pulse 3a/3b compliance - making it the only option qualified for CAN FD in safety-critical automotive domains.
Availability
ESDCAN02-2BWY is available at Aetrix Electronics and suitable for Body Control Modules, ADAS camera links, Electric Power Steering ECUs, and automotive gateway modules requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for ESDCAN02-2BWY 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power ICs, sensors, and protection devices for automotive, industrial, and consumer markets.
The ESDCANxx series was developed specifically for automotive CAN/LIN physical layer protection, emphasizing low capacitance, high surge robustness, and seamless integration into space-constrained ECU PCB layouts.
FAQ
What is the maximum peak pulse current rating for ESDCAN02-2BWY?
The ESDCAN02-2BWY is rated for 3.7 A peak pulse current under the 8/20 µs waveform per IEC 61000-4-5. This value is measured at 25 °C ambient and derates linearly to approximately 2.2 A at 125 °C junction temperature, as confirmed by Figure 2 in DS12789 Rev 3.
Does ESDCAN02-2BWY require external biasing or control signals?
No. ESDCAN02-2BWY is a passive, bidirectional TVS diode array with no pins requiring voltage bias, enable signals, or configuration. It operates solely via avalanche breakdown when transient voltage exceeds VBR, and draws zero static current below 26.5 V.
Can ESDCAN02-2BWY be used on LIN bus lines?
Yes. With its 26.5–28.5 V VBR, 3 pF capacitance, and ±30 kV ESD rating, ESDCAN02-2BWY protects LIN bus lines against ESD and load-dump transients while preserving the 19.2 kbps data rate and 12 V supply margin required by LIN 2.2A specifications.
Is the SOT323-3L package lead-free and RoHS compliant?
Yes. ESDCAN02-2BWY uses ST's ECOPACK2-compliant SOT323-3L package, certified to RoHS Directive 2011/65/EU and halogen-free per IEC 61249-2-21. The device meets UL94 V0 flammability rating and J-STD-020 MSL Level 1 moisture sensitivity classification.
ESDCAN02-2BWY Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- 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):
- 28.5V
- Voltage - Clamping (Max) @ Ipp:
- 44V
- Current - Peak Pulse (10/1000µs):
- 3A (8/20µs)
- Power - Peak Pulse:
- 250W
- Power Line Protection:
- No
- Applications:
- CAN
- Capacitance @ Frequency:
- 3pF @ 1MHz
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323-3
ESDCAN02-2BWY FAQ
1.How can I place an order for ESDCAN02-2BWY through Aetrix?
Please submit a Request for Quotation (RFQ) for ESDCAN02-2BWY 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 ESDCAN02-2BWY reliable?
The price and inventory of ESDCAN02-2BWY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ESDCAN02-2BWY is usually 5 days.
3.What payment methods are accepted for ESDCAN02-2BWY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ESDCAN02-2BWY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ESDCAN02-2BWY?
ESDCAN02-2BWY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ESDCAN02-2BWY 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 ESDCAN02-2BWY?
For technical support, including ESDCAN02-2BWY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ESDCAN02-2BWY requirements.
6.How does Aetrix verify that ESDCAN02-2BWY is sourced from the original manufacturer or authorized distributors?
All ESDCAN02-2BWY 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 ESDCAN02-2BWY meets industry standards.
7.What is the process for return or replacement of ESDCAN02-2BWY?
All ESDCAN02-2BWY units undergo pre-shipment inspection (PSI). If there is an issue with ESDCAN02-2BWY, 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 ESDCAN02-2BWY part is unused and in its original packaging.
Return procedure for ESDCAN02-2BWY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ESDCAN02-2BWY Tags
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