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Diodes Incorporated DESD1CAN2SOQ-7
- Part No.:
- DESD1CAN2SOQ-7
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
DESD1CAN2SOQ-7.pdf
- Description:
- TVS DIODE 24VWM 70VC SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:12,595
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Product details
Overview
DESD1CAN2SOQ from Diodes Incorporated is a dual-channel AEC-Q101-qualified ESD protection diode for CAN bus data lines, featuring 25.4 V minimum breakdown voltage, ±30 kV IEC 61000-4-2 contact/air ESD rating, 11 pF typical channel capacitance, 3 A peak pulse current (8/20 µs), and 200 W per-line peak power dissipation. It protects automotive CAN transceivers against transient overvoltage in harsh environments.
For engineers reviewing the DESD1CAN2SOQ datasheet, DESD1CAN2SOQ pinout, DESD1CAN2SOQ application, or DESD1CAN2SOQ equivalent, key selection criteria include low-capacitance dual-channel clamping, AEC-Q101 qualification, PPAP support, and SOT23 footprint compatibility with CAN FD signaling integrity requirements.
Technical Context
The DESD1CAN2SOQ integrates two bidirectional TVS diodes in a single SOT23 package, each configured as a low-capacitance clamp between CANH/CANL and ground. Its 24 V reverse standoff voltage ensures compatibility with standard 12 V automotive CAN bus operating margins while maintaining robust clamping at ≤40 V (IPP = 1 A) and ≤70 V (IPP = 3 A).
Designed specifically for Controller Area Network interfaces, it delivers matched channel capacitance (ΔCT ≤ 0.22 pF), <50 nA leakage at 24 V, and thermal performance validated under -55°C to +150°C operation-enabling reliable protection in engine control units, body electronics, and ADAS domain controllers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 24 V - Ensures no conduction during normal CAN bus differential swing (±2.5 V) and common-mode range (−2 V to +7 V) |
| VBR (Min) | 25.4 V - Guarantees precise turn-on before transceiver damage threshold in fast-rising ESD events |
| CT (Typ) | 11 pF - Minimizes signal distortion on CAN FD up to 5 Mbps without degrading edge integrity |
| IPP | 3 A - Withstands ISO 7637-3 pulse 5a surges and IEC 61000-4-5 level 3 transients |
| ESD Rating | ±30 kV (Contact/Air) - Meets highest IEC 61000-4-2 immunity class for dashboard and gateway modules |
| PPP | 200 W per channel - Sustains 8/20 µs surge energy without parametric shift or bond-wire failure |
| Leakage (IR) | <50 nA @ 24 V - Prevents CAN bus DC loading that could trigger false dominant states or timeout errors |
Pinout & Package
Package: SOT23 - 3-pin surface-mount package with matte tin-plated Alloy 42 leadframe, moisture sensitivity level 1, UL 94V-0 molding compound, and 0.009 g mass. Compatible with standard reflow profiles and automated placement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | CANH Protection Anode | Connects to CANH line; forms low-impedance path to ground during positive transients |
| Pin 2 | Ground | Common cathode reference for both channels; must be low-inductance connection to chassis/system ground |
| Pin 3 | CANL Protection Anode | Connects to CANL line; provides symmetrical clamping response for differential ESD coupling |
Key Features
| Feature | Design Value |
|---|---|
| Dual-channel matched capacitance | ΔCT ≤ 0.22 pF - Preserves CAN bus differential signal symmetry and common-mode rejection |
| AEC-Q101 qualification | Validated for automotive temperature cycling, HTRB, and ESD stress - supports PPAP submission for Tier 1 suppliers |
| Low-leakage design | <50 nA @ VRWM - Eliminates cumulative bus loading across multiple nodes in multi-drop networks |
| Green packaging | Halogen- and antimony-free, RoHS 3 compliant - meets EU ELV and OEM sustainability mandates |
| Thermal robustness | RθJA = 417 °C/W on FR-4 - Enables stable operation in under-hood ECUs without heatsinking |
Applications
| Automotive CAN Gateway | Body Control Module (BCM) |
|---|---|
Use Scenario: Protecting high-speed CAN FD communication between domain controllers and central gateways in vehicle networking architectures. IC Role / Device Role / Timing Role: Dual-line transient voltage suppressor placed directly at CAN transceiver I/O pins to shunt ESD and load-dump energy. Use Value: Maintains signal integrity up to 5 Mbps while meeting ISO 11898-2 electromagnetic compatibility requirements for Class B vehicles. | Use Scenario: Safeguarding CAN interfaces in door modules, lighting controls, and seat position sensors exposed to assembly-line ESD events. IC Role / Device Role / Timing Role: Low-capacitance ESD clamp ensuring uninterrupted wake-up functionality and diagnostic message transmission. Use Value: Prevents latch-up or reset of microcontrollers during factory handling without adding propagation delay or jitter. |
| Advanced Driver Assistance Systems (ADAS) | Electric Powertrain Control Unit |
Use Scenario: Shielding radar and camera sensor CAN links from radiated ESD in proximity to high-voltage inverters and switching noise sources. IC Role / Device Role / Timing Role: Front-end protection element co-located with CAN transceivers to absorb coupled transients before signal conditioning stages. Use Value: Reduces bit error rate in safety-critical sensor fusion paths by limiting clamping overshoot to ≤70 V at 3 A surge. | Use Scenario: Securing CAN communication between battery management systems (BMS), motor controllers, and vehicle control units in 400–800 V EV platforms. IC Role / Device Role / Timing Role: Transient suppression device rated for extended temperature range (−55°C to +150°C) and high-reliability automotive manufacturing. Use Value: Supports IATF 16949-compliant production with traceable sourcing and zero-defect quality targets for functional safety applications. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel CAN bus ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMF15CAN-7 | Higher VRWM (15 V), lower VBR (16.7 V), 15 pF CT, same SOT23 package | Better suited for 5 V CAN transceivers; less margin for 12 V systems with wide common-mode excursions | Select when interfacing with legacy 5 V CAN PHYs where tighter clamping voltage is prioritized over automotive voltage headroom |
| TPD2E001DRYR | Single-channel, 5.5 V VRWM, 10 pF CT, DRY (SOT-5X3) package, no AEC-Q101 qualification | Requires two devices per CAN pair; lacks PPAP support and extended temperature validation | Acceptable for non-automotive industrial CAN nodes where cost and board space outweigh qualification requirements |
Compared with SMF15CAN-7 and TPD2E001DRYR, the DESD1CAN2SOQ uniquely combines AEC-Q101 qualification, matched dual-channel architecture in one SOT23, and 24 V standoff-making it the only drop-in solution for new automotive CAN designs requiring PPAP, thermal robustness, and signal fidelity at 5 Mbps.
Availability
DESD1CAN2SOQ is available at Aetrix Electronics and suitable for automotive CAN gateway modules, body control units, ADAS sensor clusters, and electric powertrain control systems requiring stable component supply and long-term lifecycle assurance.
Supply support for DESD1CAN2SOQ 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, serving automotive, industrial, computing, and consumer markets with a focus on reliability, efficiency, and regulatory compliance.
The DESD1CAN2SOQ belongs to Diodes' Automotive-Grade ESD Protection portfolio, engineered specifically to meet stringent AEC-Q101 stress testing and PPAP documentation requirements for CAN bus interface protection in safety-critical vehicle subsystems.
FAQ
What is the maximum operating temperature for DESD1CAN2SOQ?
The DESD1CAN2SOQ is rated for continuous operation from −55°C to +150°C ambient temperature, validated per AEC-Q101 thermal cycling and high-temperature reverse bias tests. This enables deployment in engine compartments, power inverters, and other high-thermal-stress automotive zones without derating.
Does DESD1CAN2SOQ support CAN FD data rates up to 5 Mbps?
Yes-its 11 pF typical channel capacitance and matched ΔCT ≤ 0.22 pF preserve signal rise/fall times and minimize inter-symbol interference, enabling full compliance with ISO 11898-2:2016 requirements for CAN FD physical layer integrity at 5 Mbps.
Is the SOT23 package of DESD1CAN2SOQ compatible with standard pick-and-place equipment?
Yes-the SOT23 package uses industry-standard dimensions (2.9 mm × 1.3 mm × 1.0 mm), matte tin-plated terminals, and J-STD-020 Level 1 moisture sensitivity, making it fully compatible with automated assembly processes including reflow soldering and AOI inspection per IPC-A-610 Class 3 standards.
How does DESD1CAN2SOQ differ from generic bi-directional TVS diodes in CAN protection?
Unlike generic TVS diodes, DESD1CAN2SOQ features tightly matched channel capacitance, AEC-Q101 qualification with PPAP documentation, automotive-grade thermal derating curves, and optimized clamping behavior specifically characterized for CAN bus differential signaling-ensuring predictable performance in safety-critical automotive applications.
DESD1CAN2SOQ-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- 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):
- 25.4V
- Voltage - Clamping (Max) @ Ipp:
- 70V
- Current - Peak Pulse (10/1000µs):
- 3A (8/20µs)
- Power - Peak Pulse:
- 200W
- Power Line Protection:
- No
- Applications:
- CAN
- Capacitance @ Frequency:
- 11pF @ 1MHz
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
DESD1CAN2SOQ-7 FAQ
1.How can I place an order for DESD1CAN2SOQ-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DESD1CAN2SOQ-7 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 DESD1CAN2SOQ-7 reliable?
The price and inventory of DESD1CAN2SOQ-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DESD1CAN2SOQ-7 is usually 5 days.
3.What payment methods are accepted for DESD1CAN2SOQ-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DESD1CAN2SOQ-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DESD1CAN2SOQ-7?
DESD1CAN2SOQ-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DESD1CAN2SOQ-7 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 DESD1CAN2SOQ-7?
For technical support, including DESD1CAN2SOQ-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DESD1CAN2SOQ-7 requirements.
6.How does Aetrix verify that DESD1CAN2SOQ-7 is sourced from the original manufacturer or authorized distributors?
All DESD1CAN2SOQ-7 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 DESD1CAN2SOQ-7 meets industry standards.
7.What is the process for return or replacement of DESD1CAN2SOQ-7?
All DESD1CAN2SOQ-7 units undergo pre-shipment inspection (PSI). If there is an issue with DESD1CAN2SOQ-7, 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 DESD1CAN2SOQ-7 part is unused and in its original packaging.
Return procedure for DESD1CAN2SOQ-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DESD1CAN2SOQ-7 Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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onsemi
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Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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