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Diodes Incorporated DESD1CANFD24VSOQ-7
- Part No.:
- DESD1CANFD24VSOQ-7
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
DESD1CANFD24VSOQ-7.pdf
- Description:
- GENERAL PROTECTION PP SOT23 T&R
- Quantity:
- Payment:
- Shipping:
Inventory:5,995
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Product details
Overview
DESD1CANFD24VSOQ-7 from Diodes Incorporated is a dual-channel automotive-grade ESD protection diode for CAN FD bus lines, featuring 25.5V breakdown voltage, ±23kV IEC 61000-4-2 ESD rating, 5.2pF typical channel capacitance, 110W peak pulse power per line, and AEC-Q101 qualification for under-hood applications.
For engineers reviewing the DESD1CANFD24VSOQ-7 datasheet, DESD1CANFD24VSOQ-7 pinout, DESD1CANFD24VSOQ-7 application, or DESD1CANFD24VSOQ-7 equivalent, key selection criteria include low-capacitance dual-line protection, high-temperature operation up to +175°C, and compliance with automotive PPAP and IATF 16949 manufacturing requirements.
Technical Context
This device implements bidirectional TVS clamping across two independent CAN FD data lines (CANH/CANL), with matched junction capacitance (≤2% mismatch) and symmetric clamping behavior for differential signal integrity. It uses silicon avalanche diode structures optimized for fast transient response (sub-nanosecond turn-on) and low leakage (<50nA at 24V).
The SOT23 package enables compact placement near CAN transceiver I/O pins, while thermal design supports continuous operation at TJ = +175°C - critical for engine control units and ADAS domain controllers exposed to high ambient temperatures.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (Min) | 25.5V - Ensures reliable clamping onset above 24V CAN FD bus operating voltage without false triggering |
| IPP (Max) | 2.6A - Withstands ISO 16750-2 load dump surges and coupled transients on automotive data lines |
| CT (Typ) | 5.2pF - Minimizes signal distortion and timing skew on CAN FD high-speed (5 Mbps) differential pairs |
| VCL @ 1A | 33–42V - Limits transient overvoltage to safe levels for downstream CAN transceivers rated ≤40V abs max |
| TJ Range | −55°C to +175°C - Supports direct mounting in high-temperature zones (e.g., near engine ECU housings) |
| ESD Rating | ±23kV contact/air - Exceeds IEC 61000-4-2 Level 4, eliminating need for external ESD staging in most automotive modules |
Pinout & Package
Package: SOT23 - 3-pin surface-mount package with standard leadframe geometry (0.915mm pitch, 2.40mm length), RoHS-compliant matte tin plating, and UL 94V-0 molded compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PIN 1 | CAN FD Channel 1 Anode | Connects to CANH line; forms one half of bidirectional clamping path to VCC rail |
| PIN 2 | Common Cathode | Shared cathode node tied to 24V supply rail; enables dual-channel clamping with single reference |
| PIN 3 | CAN FD Channel 2 Anode | Connects to CANL line; mirrors PIN 1 for symmetrical differential protection |
Key Features
| Feature | Design Value |
|---|---|
| Dual-channel matched capacitance | ΔCT ≤ 2% between channels - preserves differential signal integrity and common-mode rejection in CAN FD physical layer |
| AEC-Q101 qualified & PPAP capable | Tested per stress conditions including HTGB, HTRB, TCT, and ESD - meets automotive production release requirements |
| +175°C junction rating | Validated operation at maximum temperature without derating - eliminates thermal margin concerns in compact ECUs |
| Low leakage current | IR ≤ 50nA @ 24V - prevents bus loading and voltage droop during sleep mode in always-on CAN FD networks |
Applications
| Engine Control Unit (ECU) | Advanced Driver Assistance System (ADAS) Camera Module |
|---|---|
Use Scenario: Protecting CAN FD communication between ECU and transmission control module in high-temperature engine bay environments. IC Role / Device Role / Timing Role: Dual-line transient voltage suppressor placed directly at CAN transceiver I/O pins to clamp ESD and load-dump induced spikes. Use Value: Prevents latch-up or damage to TI TCAN4550 or NXP TJA1044T CAN FD transceivers during vehicle cranking or alternator load dump events. | Use Scenario: Securing high-speed CAN FD links between surround-view camera ECU and central domain controller in autonomous driving platforms. IC Role / Device Role / Timing Role: Low-capacitance ESD guard for differential CAN FD signals running at 5 Mbps over flexible printed cables. Use Value: Maintains signal eye diagram integrity with <5.2pF per channel, enabling reliable bit error rate <10−12 at full data rate. |
| Electric Powertrain Inverter Control | Automotive Body Control Module (BCM) |
Use Scenario: Shielding CAN FD bus connecting motor control unit and battery management system inside high-voltage traction inverter enclosures. IC Role / Device Role / Timing Role: High-temperature-rated surge protector mounted adjacent to isolated CAN FD isolators (e.g., Silicon Labs SI86xx) on 175°C-rated PCBs. Use Value: Sustains protection function at sustained 150°C ambient, avoiding thermal shutdown during extended high-power drive cycles. | Use Scenario: Hardening low-speed and high-speed CAN FD interfaces in BCMs managing door modules, lighting, and HVAC subsystems. IC Role / Device Role / Timing Role: Dual-line ESD suppressor integrated into multi-protocol CAN/LIN gateway IC routing paths. Use Value: Enables single-device protection for both CAN FD and legacy CAN 2.0B lines without compromising board space or BOM count. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel automotive CAN FD ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESDALC6V1-2M3 | Higher CT = 12pF; lower VBR = 6.1V; not AEC-Q101 qualified | Targeted at non-automotive industrial CAN; unsuitable for 24V systems or PPAP-controlled programs | Select only for cost-sensitive 12V CAN designs where thermal rating and qualification are secondary |
| TPD2E001DRYR | Single-channel; CT = 3.5pF; VBR = 5.5V; no automotive qualification | Designed for USB/low-voltage logic I/O; lacks dual-line architecture and 24V standoff capability | Not suitable as drop-in replacement; requires redesign for dual-line coverage and higher voltage tolerance |
Compared with ESDALC6V1-2M3 and TPD2E001DRYR, DESD1CANFD24VSOQ-7 uniquely delivers AEC-Q101 qualification, 24V system compatibility, matched dual-channel capacitance, and +175°C operation - making it the only viable option for production automotive CAN FD nodes requiring zero-defect reliability and thermal resilience.
Availability
DESD1CANFD24VSOQ-7 is available at Aetrix Electronics and suitable for automotive engine control units, ADAS camera modules, electric powertrain inverters, and body control modules requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for DESD1CANFD24VSOQ-7 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 components for automotive, industrial, and computing markets with IATF 16949-certified fabrication and assembly facilities.
This device belongs to Diodes' Automotive Protection Solutions product line, engineered specifically to meet stringent AEC-Q101 stress requirements and PPAP documentation needs for CAN FD and FlexRay data bus protection in safety-critical vehicle systems.
FAQ
What is the maximum clamping voltage of DESD1CANFD24VSOQ-7 during an 8/20μs surge event?
The clamping voltage is specified as 33V (typical) to 42V (maximum) at 1A peak pulse current under 8/20μs waveform conditions. This ensures downstream CAN FD transceivers - typically rated for 40V absolute maximum - remain within safe operating limits during transient events such as ISO 7637-2 pulse 1 and pulse 2b.
Can DESD1CANFD24VSOQ-7 be used for both CAN 2.0 and CAN FD protocols?
Yes - its 5.2pF channel capacitance and matched differential structure maintain signal integrity up to 5 Mbps, supporting both legacy CAN 2.0 (1 Mbps) and CAN FD (up to 5 Mbps). The 24V standoff voltage aligns with 24V automotive electrical systems where both protocols coexist in modern domain controllers.
Is the SOT23 package of DESD1CANFD24VSOQ-7 compatible with standard reflow profiles?
Yes - the device is qualified for moisture sensitivity level 1 per J-STD-020 and supports standard lead-free reflow profiles (peak temperature ≤260°C). Its matte tin finish and alloy 42 leadframe ensure reliable solder joint formation on FR-4 PCBs using industry-standard stencil and reflow parameters.
Does DESD1CANFD24VSOQ-7 require external biasing or additional circuitry?
No - it operates passively as a bidirectional TVS diode array with no external power or control signals required. The common cathode (PIN 2) connects directly to the 24V supply rail, and anodes (PINS 1 & 3) connect to CANH and CANL lines respectively - enabling plug-and-play integration with any CAN FD transceiver.
DESD1CANFD24VSOQ-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):
- 25.5V
- Voltage - Clamping (Max) @ Ipp:
- 42V
- Current - Peak Pulse (10/1000µs):
- 2.6A (8/20µs)
- Power - Peak Pulse:
- 110W
- Power Line Protection:
- No
- Applications:
- CAN
- Capacitance @ Frequency:
- 5.2pF @ 1MHz
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
DESD1CANFD24VSOQ-7 FAQ
1.How can I place an order for DESD1CANFD24VSOQ-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DESD1CANFD24VSOQ-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 DESD1CANFD24VSOQ-7 reliable?
The price and inventory of DESD1CANFD24VSOQ-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DESD1CANFD24VSOQ-7 is usually 5 days.
3.What payment methods are accepted for DESD1CANFD24VSOQ-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DESD1CANFD24VSOQ-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DESD1CANFD24VSOQ-7?
DESD1CANFD24VSOQ-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DESD1CANFD24VSOQ-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 DESD1CANFD24VSOQ-7?
For technical support, including DESD1CANFD24VSOQ-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DESD1CANFD24VSOQ-7 requirements.
6.How does Aetrix verify that DESD1CANFD24VSOQ-7 is sourced from the original manufacturer or authorized distributors?
All DESD1CANFD24VSOQ-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 DESD1CANFD24VSOQ-7 meets industry standards.
7.What is the process for return or replacement of DESD1CANFD24VSOQ-7?
All DESD1CANFD24VSOQ-7 units undergo pre-shipment inspection (PSI). If there is an issue with DESD1CANFD24VSOQ-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 DESD1CANFD24VSOQ-7 part is unused and in its original packaging.
Return procedure for DESD1CANFD24VSOQ-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DESD1CANFD24VSOQ-7 Tags
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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