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STMicroelectronics ESDCAN01-2BLY
- Part No.:
- ESDCAN01-2BLY
- Manufacturer:
- STMicroelectronics
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
ESDCAN01-2BLY.pdf
- Description:
- TVS DIODE 24VWM 40VC SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:40,360
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Product details
Overview
ESDCAN01-2BLY from STMicroelectronics is an AEC-Q101-qualified dual-line bidirectional TVS diode for CAN H and CAN L bus protection in automotive networks. It features 25 V breakdown voltage (VBR), 30 kV ESD immunity (IEC 61000-4-2, ISO 10605), 230 W peak pulse power (8/20 µs), 9 pF typical junction capacitance, and clamps to ≤40 V at 5.5 A IPP - enabling robust protection for high-speed CAN-FD and LIN buses without signal integrity degradation.
For engineers reviewing the ESDCAN01-2BLY datasheet, ESDCAN01-2BLY pinout, ESDCAN01-2BLY application, or ESDCAN01-2BLY equivalent, key selection criteria include its low clamping factor (VCL/VBR ≈ 1.6), SOT23-3L footprint compatibility with IPC7531, MSL Level 1 rating, and compliance with ISO 7637-3 Pulse 3a/3b (±150 V) and Pulse 2a (±85 V) for 12 V automotive systems.
Technical Context
This device operates as a dual-channel, symmetric, bidirectional transient voltage suppressor specifically engineered for CAN physical layer protection. Its low 9 pF line-to-ground capacitance ensures minimal signal distortion on buses up to 5 Mbps (CAN-FD), while the 25 V VBR and 40 V VCL at 5.5 A maintain tight voltage margins during transients like jump-start and reverse-battery events per ISO 16750-2.
The SOT23-3L package integrates both channels in a single 3-pin configuration with shared cathode topology - Pin 1 and Pin 3 are protected lines (CAN H / CAN L), Pin 2 is common cathode. Thermal design supports continuous operation from −40 °C to +150 °C junction temperature, validated per J-STD-020 MSL Level 1 reflow profile.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min) | 24 V - Ensures reliable standoff above 12 V automotive nominal rail and withstands ISO 16750-2 jump-start (up to 24 V) |
| VCL @ IPP=5.5 A | ≤40 V - Limits bus voltage excursion during ESD/EFT to preserve CAN transceiver input tolerance (typically ±40 V) |
| CJ (typ) | 9 pF - Enables <5% signal rise-time degradation on 5 Mbps CAN-FD buses; meets FlexRay/USB 2.0 AC coupling requirements |
| IPP (8/20 µs) | 5.5 A - Supports full ISO 10605 ±30 kV contact discharge (150 pF/330 Ω) with margin |
| PPPK (8/20 µs) | 230 W - Delivers sustained surge handling for ISO 7637-3 Pulse 3a/3b (−150 V/+150 V) without thermal runaway |
| Leakage (IR) | ≤0.1 µA @ 20 V - Prevents measurable DC loading on CAN bias networks and avoids false wake-up in low-power sleep modes |
Pinout & Package
ESDCAN01-2BLY is housed in a JEDEC-registered SOT23-3L package (3-pin, 2.75 × 1.37 mm body, 0.95 mm pitch), compliant with IPC7531 footprint guidelines and rated MSL Level 1. The device uses a common-cathode dual-diode configuration optimized for differential bus protection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | CAN H protection line (anode) | Connected to CAN H signal; clamps positive/negative transients to common cathode (Pin 2) |
| Pin 2 | Common cathode (GND reference) | Shared cathode node tied to system ground; defines clamping reference for both channels |
| Pin 3 | CAN L protection line (anode) | Connected to CAN L signal; provides symmetrical bidirectional clamping with Pin 1 |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive underhood use across −40 °C to +150 °C junction temperature with lifetime reliability testing |
| Low clamping factor (VCL/VBR) | 1.6 - Reduces voltage overshoot during fast transients, lowering stress on downstream CAN transceivers |
| Ultra-low line capacitance | 9 pF - Preserves signal integrity on CAN-FD (5 Mbps), LIN (20 kbps), and future CAN XL physical layers |
| Triple-standard ESD immunity | ±30 kV contact/air per ISO 10605 (150/330 pF, 330/2 kΩ) - exceeds automotive Tier 4 requirement |
| ECOPACK2 RoHS compliance | Lead-free, halogen-free, and compliant with EU RoHS Directive 2011/65/EU and REACH SVHC |
Applications
| Automotive CAN-FD Node Protection | LIN Bus ESD Hardening |
|---|---|
|
Use Scenario: Protecting ECUs in ADAS domain controllers where CAN-FD buses operate at 2–5 Mbps with strict signal integrity requirements. IC Role / Device Role / Timing Role: Dual-line TVS placed between CAN transceiver and connector, providing bidirectional clamping without adding propagation delay. Use Value: 9 pF capacitance limits rise-time degradation to <3%, ensuring bit error rate remains below 10−12 at 5 Mbps. |
Use Scenario: Securing LIN slave nodes (e.g., door modules, seat controls) against ESD events during assembly and field service. IC Role / Device Role / Timing Role: Low-leakage (≤0.1 µA) protection device mounted directly at connector interface to prevent false wake-up and latch-up. Use Value: 25 V VBR safely tolerates LIN bus voltage swings (0–18 V) while clamping ±30 kV ESD to <40 V. |
| 12 V Powertrain Communication Hub | Body Control Module (BCM) Gateway |
|
Use Scenario: Shielding CAN interfaces in engine control units exposed to ISO 7637-3 Pulse 2a (±85 V) and Pulse 3a/3b (±150 V) during load dump and battery reversal. IC Role / Device Role / Timing Role: Front-end transient suppressor absorbing energy before it reaches the CAN transceiver's internal protection network. Use Value: 230 W peak power rating sustains 150 V/100 ms pulses without parametric shift or failure. |
Use Scenario: Enabling reliable communication between BCM and infotainment head unit via high-speed CAN, while meeting OEM EMC validation requirements. IC Role / Device Role / Timing Role: Dual-channel TVS integrated into PCB layout with matched trace lengths to preserve differential mode rejection. Use Value: Symmetric VBR (24 V min) and VCL (≤40 V) ensure balanced clamping on both CAN H/L, minimizing common-mode noise injection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-line automotive CAN bus protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESDCAN24-2BLY | VBR = 24 V (min), VCL = 43 V @ 5.5 A, CJ = 9 pF - identical package and footprint | Slightly higher clamping voltage reduces margin for transceivers with narrow absolute maximum ratings (e.g., ±36 V) | Select when tighter VBR tolerance is required or when matching legacy designs using ESDCAN24-2BLY |
| ESDCAN04-2BLY | VBR = 25.5 V (min), VCL = 43 V @ 3.7 A, CJ = 9 pF - same SOT23-3L package | Lower IPP (3.7 A vs. 5.5 A) reduces surge capability for ISO 7637-3 Pulse 3b (+150 V) in high-impedance harnesses | Prefer for cost-sensitive LIN-only applications where full CAN-FD surge margin is not required |
Compared with ESDCAN24-2BLY and ESDCAN04-2BLY, ESDCAN01-2BLY delivers the optimal balance of low clamping (40 V), high surge current (5.5 A), and precise 25 V VBR, making it the preferred choice for new CAN-FD designs requiring maximum bus voltage margin and signal fidelity.
Availability
ESDCAN01-2BLY is available at Aetrix Electronics and suitable for automotive ECU development, CAN-FD gateway integration, and LIN-based body electronics requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for ESDCAN01-2BLY 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.
ESDCAN01-2BLY belongs to ST's ESDCANxx-2BLY series - a family of AEC-Q101-qualified dual-line TVS diodes engineered specifically to meet stringent ISO 7637-3, ISO 10605, and ISO 16750-2 requirements for automotive CAN and LIN physical layer protection.
FAQ
Is ESDCAN01-2BLY pin-compatible with other ESDCANxx-2BLY variants?
Yes - all ESDCANxx-2BLY devices (including ESDCAN24-2BLY, ESDCAN04-2BLY, and ESDCAN06-2BLY) share identical SOT23-3L pinout, footprint, and thermal characteristics. This enables drop-in replacement during design iteration or qualification without PCB changes.
Does ESDCAN01-2BLY require external biasing or series impedance?
No - ESDCAN01-2BLY is a passive bidirectional TVS diode that operates without bias voltage or current. It connects directly between CAN H/CAN L and ground with no external components required, maintaining signal integrity through its 9 pF capacitance and low leakage (<0.1 µA).
What is the maximum recommended trace length between ESDCAN01-2BLY and the CAN connector?
For optimal ESD suppression, ST recommends placing ESDCAN01-2BLY within 2 mm of the connector entry point, with symmetric, equal-length traces to CAN H and CAN L. Longer traces (>5 mm) increase inductance and degrade clamping response time, risking transceiver damage during ±30 kV ESD events.
Can ESDCAN01-2BLY be used on non-automotive buses such as USB or RS-485?
Yes - its 9 pF capacitance, ±30 kV ESD rating, and 25 V VBR make it suitable for protecting USB 2.0 data lines (D+/D−) and RS-485 half-duplex pairs, provided system voltage stays below 20 V and surge energy remains within 230 W (8/20 µs). Layout must maintain differential symmetry.
ESDCAN01-2BLY Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 2
- Voltage - Reverse Standoff (Typ):
- 24V (Max)
- Voltage - Breakdown (Min):
- 25V
- Voltage - Clamping (Max) @ Ipp:
- 40V
- Current - Peak Pulse (10/1000µs):
- 5.5A (8/20µs)
- Power - Peak Pulse:
- 230W
- Power Line Protection:
- No
- Applications:
- CAN
- Capacitance @ Frequency:
- 30pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
ESDCAN01-2BLY FAQ
1.How can I place an order for ESDCAN01-2BLY through Aetrix?
Please submit a Request for Quotation (RFQ) for ESDCAN01-2BLY 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 ESDCAN01-2BLY reliable?
The price and inventory of ESDCAN01-2BLY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ESDCAN01-2BLY is usually 5 days.
3.What payment methods are accepted for ESDCAN01-2BLY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ESDCAN01-2BLY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ESDCAN01-2BLY?
ESDCAN01-2BLY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ESDCAN01-2BLY 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 ESDCAN01-2BLY?
For technical support, including ESDCAN01-2BLY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ESDCAN01-2BLY requirements.
6.How does Aetrix verify that ESDCAN01-2BLY is sourced from the original manufacturer or authorized distributors?
All ESDCAN01-2BLY 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 ESDCAN01-2BLY meets industry standards.
7.What is the process for return or replacement of ESDCAN01-2BLY?
All ESDCAN01-2BLY units undergo pre-shipment inspection (PSI). If there is an issue with ESDCAN01-2BLY, 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 ESDCAN01-2BLY part is unused and in its original packaging.
Return procedure for ESDCAN01-2BLY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ESDCAN01-2BLY Tags
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