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Diodes Incorporated DESD2CAN2SOQ-7
- Part No.:
- DESD2CAN2SOQ-7
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
DESD2CAN2SOQ-7.pdf
- Description:
- TVS DIODE 24VWM 41VC SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:34,464
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Product details
Overview
DESD2CAN2SOQ from Diodes Incorporated is a dual-channel automotive-grade ESD protection diode designed for Controller Area Network (CAN) bus lines, featuring 25.4V minimum breakdown voltage, ±30kV IEC 61000-4-2 contact/air ESD rating, 25pF typical channel capacitance, 5A peak pulse current (8/20µs), and AEC-Q101 qualification for under-hood CAN transceiver protection.
For engineers reviewing the DESD2CAN2SOQ datasheet, DESD2CAN2SOQ pinout, DESD2CAN2SOQ application, or DESD2CAN2SOQ equivalent, this device delivers validated low-capacitance transient suppression for high-speed CAN FD interfaces while maintaining signal integrity in automotive powertrain and body control modules.
Technical Context
The DESD2CAN2SOQ integrates two bidirectional TVS diodes in a single SOT23-3L package, each configured as a low-capacitance clamp with 24V reverse standoff and 34V clamping at 1A. Its differential capacitance matching (∆CT ≤ 0.55pF) ensures minimal skew between CANH and CANL lines.
It operates across –65°C to +150°C, supports PPAP documentation, and is manufactured in IATF 16949-certified facilities-enabling direct integration into AEC-compliant CAN physical layer designs without derating for temperature or surge waveform fidelity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (Min) | 25.4V - Ensures reliable triggering above CAN common-mode voltage range (±12V) without false clamping |
| IPP (Max) | 5A (8/20µs) - Withstands ISO 7637-3 pulse 3b and IEC 61000-4-5 surge events on automotive data lines |
| CT (Typ) | 25pF @ 1MHz - Maintains <1% signal distortion at CAN FD 5Mbps with matched channel capacitance |
| VCL @ 5A | 41V - Limits transients below CAN transceiver absolute maximum rating (typically 45V) |
| ESD Rating | ±30kV contact/air - Exceeds IEC 61000-4-2 Level 4 for robustness in assembly and field environments |
| Package | SOT23-3L - Enables PCB space savings vs. discrete dual-diode solutions; compatible with standard SMT reflow profiles |
Pinout & Package
SOT23-3L surface-mount package with matte tin-plated alloy 42 leadframe, UL 94V-0 molding compound, and moisture sensitivity level 1 per J-STD-020.
| 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 | GND | Common cathode reference for both channels; must be low-inductance connection to chassis ground |
| Pin 3 | CANL Protection Anode | Connects to CANL line; symmetric clamping response ensures differential mode immunity |
Key Features
| Feature | Design Value |
|---|---|
| Dual-channel matched capacitance | ∆CT ≤ 0.55pF - Preserves CAN differential timing integrity and reduces EMI radiation |
| AEC-Q101 qualified | Tested per stress conditions including HTGB, TCT, and HTRB - enables use in engine control units without additional qualification |
| Low leakage current | <10nA @ 24V - Prevents CAN bus bias shift and false wake-up in sleep-mode vehicle networks |
| Green RoHS compliance | Halogen- and antimony-free (<900ppm Br/Cl, <1000ppm Sb) - meets automotive OEM material declarations (e.g., GMW3059, Ford WSS-M99P9999-A1) |
Applications
| Powertrain CAN Gateway | Body Control Module (BCM) |
|---|---|
Use Scenario: Protecting CAN FD interface between engine ECU and transmission controller in harsh under-hood environments. IC Role / Device Role / Timing Role: Dual-line transient suppressor placed directly at connector entry point before CAN transceiver. Use Value: Clamps ISO 7637-3 pulse 3b surges to <41V while maintaining 25pF capacitance for clean 2Mbps+ signaling. | Use Scenario: Securing CAN communication between door module and central BCM in 12V battery-powered systems. IC Role / Device Role / Timing Role: ESD guard for exposed wiring harnesses subject to human-body-model discharges during service. Use Value: Delivers ±30kV air/contact ESD immunity without degrading signal rise time due to matched 25pF channel capacitance. |
| Advanced Driver Assistance Systems (ADAS) | Electric Vehicle Battery Management System (BMS) |
Use Scenario: Shielding radar sensor CAN interface from ESD events during vehicle assembly and field operation. IC Role / Device Role / Timing Role: Front-end protection for high-reliability CAN links operating at extended temperature ranges (–40°C to +125°C). Use Value: Maintains stable clamping performance across –65°C to +150°C ambient, supporting ASIL-B functional safety requirements. | Use Scenario: Safeguarding inter-module CAN communication in high-voltage battery packs exposed to thermal cycling and vibration. IC Role / Device Role / Timing Role: Surge protector mounted at BMS master node to absorb load-dump-induced transients on CAN bus lines. Use Value: 230W peak power dissipation per line handles repetitive 8/20µs surges without parametric drift or failure. |
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 |
|---|---|---|---|
| SMF24CA | Single-channel, higher 30pF capacitance, no differential matching spec | Requires two devices for CANH/CANL; introduces >1pF channel mismatch risk | Use only when board area permits discrete placement and skew tolerance >100ps |
| TPD2E001DRYR | 2-channel, 10pF typ, but rated only to ±15kV ESD and non-AEC-Q101 | Limited to infotainment or non-safety-critical CAN networks | Select only for cost-sensitive consumer-grade CAN interfaces without automotive qualification needs |
Compared with SMF24CA and TPD2E001DRYR, the DESD2CAN2SOQ uniquely combines AEC-Q101 qualification, sub-25pF matched capacitance, and ±30kV ESD rating in a single SOT23-3L footprint-making it the only drop-in solution for production automotive CAN FD nodes requiring zero design requalification.
Availability
DESD2CAN2SOQ is available at Aetrix Electronics and suitable for automotive powertrain gateways, body control modules, ADAS sensor clusters, and EV battery management systems requiring stable component supply across long production lifecycles.
Supply support for DESD2CAN2SOQ 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, specializing in high-reliability protection, signal integrity, and power management solutions for automotive, industrial, and computing markets.
The DESD2CAN2SOQ belongs to Diodes' AEC-Q101-qualified CAN bus protection portfolio, engineered specifically to meet stringent electromagnetic compatibility and thermal endurance requirements of modern automotive serial communication networks.
FAQ
What is the maximum clamping voltage of DESD2CAN2SOQ at 5A peak pulse current?
The DESD2CAN2SOQ clamps to 41V at 5A peak pulse current (8/20µs waveform), as specified in its electrical characteristics table. This value ensures compatibility with standard CAN transceivers rated for 45V absolute maximum VCC, providing a 4V safety margin against destructive overvoltage events during load dump or ESD transients.
Does DESD2CAN2SOQ support CAN FD data rates up to 5 Mbps?
Yes, DESD2CAN2SOQ supports CAN FD operation up to 5 Mbps due to its 25pF typical channel capacitance and matched ∆CT ≤ 0.55pF, which minimizes signal distortion and inter-symbol interference. Measured eye diagrams in Diodes' application note AN-8028 confirm <5% jitter degradation at 5 Mbps with proper PCB layout.
Is the SOT23-3L package of DESD2CAN2SOQ compatible with standard automated optical inspection (AOI) systems?
Yes, the SOT23-3L package features a standardized outline with 0.915mm pin pitch and visible solderable terminals, fully supported by industry-standard AOI algorithms. Diodes' package drawing DS-0002 confirms pad coplanarity within 0.05mm, enabling reliable solder-joint defect detection during high-volume automotive PCB assembly.
How does DESD2CAN2SOQ's AEC-Q101 qualification differ from generic ESD diodes?
DESD2CAN2SOQ undergoes full AEC-Q101 stress testing-including 1000-cycle temperature cycling, 1000-hour high-temperature reverse bias, and mechanical shock-validated per IATF 16949 manufacturing controls. Generic ESD diodes lack this automotive-specific reliability validation and may fail latent defects after 2–3 years in vehicle service.
DESD2CAN2SOQ-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:
- 41V
- Current - Peak Pulse (10/1000µs):
- 5A (8/20µs)
- Power - Peak Pulse:
- 230W
- Power Line Protection:
- No
- Applications:
- CAN
- Capacitance @ Frequency:
- 25pF @ 1MHz
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
DESD2CAN2SOQ-7 FAQ
1.How can I place an order for DESD2CAN2SOQ-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DESD2CAN2SOQ-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 DESD2CAN2SOQ-7 reliable?
The price and inventory of DESD2CAN2SOQ-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DESD2CAN2SOQ-7 is usually 5 days.
3.What payment methods are accepted for DESD2CAN2SOQ-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DESD2CAN2SOQ-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DESD2CAN2SOQ-7?
DESD2CAN2SOQ-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DESD2CAN2SOQ-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 DESD2CAN2SOQ-7?
For technical support, including DESD2CAN2SOQ-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DESD2CAN2SOQ-7 requirements.
6.How does Aetrix verify that DESD2CAN2SOQ-7 is sourced from the original manufacturer or authorized distributors?
All DESD2CAN2SOQ-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 DESD2CAN2SOQ-7 meets industry standards.
7.What is the process for return or replacement of DESD2CAN2SOQ-7?
All DESD2CAN2SOQ-7 units undergo pre-shipment inspection (PSI). If there is an issue with DESD2CAN2SOQ-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 DESD2CAN2SOQ-7 part is unused and in its original packaging.
Return procedure for DESD2CAN2SOQ-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DESD2CAN2SOQ-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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