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Diodes Incorporated DESD1CANFD24VWQ-7
- Part No.:
- DESD1CANFD24VWQ-7
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- SC-70, SOT-323
- Datasheet:
-
DESD1CANFD24VWQ-7.pdf
- Description:
- GENERAL PROTECTION PP SOT323 T&R
- Quantity:
- Payment:
- Shipping:
Inventory:5,750
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Product details
Overview
DESD1CANFD24VWQ-7 from Diodes Incorporated is a dual-channel AEC-Q101-qualified ESD protection diode for CAN FD automotive data lines, featuring 25.5V breakdown voltage, 5.2pF typical channel capacitance, ±23kV IEC 61000-4-2 contact/air ESD rating, and 110W peak pulse power per line at 8/20µs waveform.
For engineers reviewing the DESD1CANFD24VWQ-7 datasheet, DESD1CANFD24VWQ-7 pinout, DESD1CANFD24VWQ-7 application, or DESD1CANFD24VWQ-7 equivalent, key selection criteria include low-capacitance dual-line protection, high-temperature operation up to +175°C, AEC-Q101 qualification, and SOT323 package compatibility with space-constrained CAN FD node layouts.
Technical Context
This device implements bidirectional TVS clamping across two independent CAN FD signal paths (CANH/CANL), with matched junction capacitance (ΔCT/CT ≤ 0.5%) and tight VBR tolerance (25.5–35.5V) to preserve signal integrity at 5+ Mbps data rates. Its low 5.2pF CT minimizes timing skew and reflection in high-speed differential bus environments.
The SOT323 package supports thermal dissipation up to 300mW at +25°C ambient, with RθJA = 417°C/W on standard FR-4 layout, enabling reliable operation under transient surge conditions while maintaining TJ ≤ +175°C during 2.6A IPP events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (Min) | 25.5V - Ensures robust clamping onset above 24V CAN FD nominal bus voltage without false triggering |
| IPP (Max) | 2.6A - Withstands ISO 16750-2 load dump surges and coupled transients on automotive CAN networks |
| CT (Typ) | 5.2pF - Enables clean signal edges and minimal jitter for CAN FD bit rates up to 5 Mbps |
| VESD (Contact) | ±23kV - Meets stringent IEC 61000-4-2 Level 4 for in-vehicle ESD immunity testing |
| TJ Rating | +175°C - Supports placement near powertrain ECUs and under-hood modules with high ambient temperatures |
| Package | SOT323 - 2.15 × 2.10 × 0.95 mm footprint ideal for compact CAN FD transceiver PCB layouts |
Pinout & Package
Package: SOT323 - surface-mount plastic package with matte tin-plated Alloy 42 leadframe, moisture sensitivity level 1, UL 94V-0 rated molding compound, and 0.009g mass.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | CANH Protection Anode | Input terminal for high-side CAN bus line; connects to TVS cathode via internal structure for bidirectional clamping |
| Pin 2 | Anode Common / GND | Shared cathode connection point for both channels; must be tied to low-inductance chassis ground |
| Pin 3 | CANL Protection Anode | Input terminal for low-side CAN bus line; symmetrically matched to Pin 1 for differential ESD suppression |
Key Features
| Feature | Design Value |
|---|---|
| Dual-channel matched capacitance | ΔCT/CT ≤ 0.5% ensures <10 ps inter-channel timing skew critical for CAN FD differential signaling |
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, HTRB, and mechanical shock per Rev G requirements |
| Low leakage current | IRM ≤ 50 nA at 24V enables minimal standby power impact on battery-sensitive nodes |
| High-temperature operation | Rated continuous operation at TJ = +175°C supports integration into engine control and transmission modules |
Applications
| Automotive CAN FD Node Protection | ADAS Domain Controller Interface |
|---|---|
Use Scenario: Protecting CAN FD transceivers in body control modules exposed to ESD during assembly and service. IC Role / Device Role / Timing Role: Dual-line bidirectional TVS clamp placed directly at connector entry point before transceiver input pins. Use Value: Prevents latch-up and permanent damage from ±23kV contact discharge while preserving 5 Mbps signal fidelity via 5.2pF capacitance. | Use Scenario: Shielding high-speed CAN FD links between radar sensors and central ADAS domain controllers. IC Role / Device Role / Timing Role: Low-skew ESD suppressor mounted adjacent to transceiver to minimize stub length and maintain impedance continuity. Use Value: Maintains <1% signal distortion at 5 Mbps due to matched 5.2pF channels and sub-100ps response time. |
| Electric Powertrain Communication Hub | Commercial Vehicle Telematics Gateway |
Use Scenario: Safeguarding CAN FD communication between inverter controllers and battery management systems in EV platforms. IC Role / Device Role / Timing Role: High-reliability surge protector operating continuously at +150°C ambient near power electronics. Use Value: Sustains 2.6A surge current handling and 110W peak power dissipation without derating up to +175°C junction temperature. | Use Scenario: Securing fleet telematics gateways connecting multiple CAN FD networks (engine, chassis, infotainment) in Class 8 trucks. IC Role / Device Role / Timing Role: Dual-channel protector enabling single-device coverage of primary and backup CAN FD buses. Use Value: Reduces BOM count by eliminating discrete protectors per line while meeting ISO 11898-2 and IEC 61000-4-2 compliance. |
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 |
|---|---|---|---|
| TPD2E001DRYR | Single-channel, 5.5pF CT, ±15kV ESD rating, no AEC-Q101 qualification | Requires two devices for CAN FD; limited to non-safety-critical interior modules | Use only where AEC-Q101 is not mandated and board area allows dual placement |
| SP1006-01WTG | 2-channel, 6.5pF CT, ±20kV ESD, AEC-Q101 qualified, but 30V VBR min | Higher clamping threshold may allow more margin against false triggers but reduces headroom for 24V system transients | Select when higher VBR tolerance is prioritized over lowest possible capacitance |
Compared with TPD2E001DRYR and SP1006-01WTG, the DESD1CANFD24VWQ-7 uniquely combines AEC-Q101 qualification, ±23kV ESD rating, and 5.2pF capacitance in a single SOT323 package-enabling compact, high-fidelity CAN FD protection in mission-critical powertrain and ADAS nodes.
Availability
DESD1CANFD24VWQ-7 is available at Aetrix Electronics and suitable for automotive body control modules, ADAS domain controllers, electric powertrain communication hubs, and commercial vehicle telematics gateways requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for DESD1CANFD24VWQ-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 manufacturing.
The DESD1CANFD24VWQ-7 belongs to Diodes' AEC-Q101-qualified automotive ESD protection portfolio, engineered specifically to meet the signal integrity, thermal, and reliability demands of next-generation CAN FD networks in harsh under-hood and chassis environments.
FAQ
What is the maximum clamping voltage for DESD1CANFD24VWQ-7 at 1A peak pulse current?
The clamping voltage (VCL) is specified as 33–42V at IPP = 1A with an 8/20µs waveform. This ensures that protected CAN FD transceivers experience less than 42V stress during surge events, staying well below typical absolute maximum ratings of 45–50V for modern CAN FD PHYs.
Does DESD1CANFD24VWQ-7 support bidirectional ESD protection on both CANH and CANL lines simultaneously?
Yes - it integrates two symmetrical, bidirectional TVS diodes in one SOT323 package, with Pin 1 protecting CANH and Pin 3 protecting CANL against both positive and negative transients relative to the common cathode (Pin 2), enabling full differential-line ESD suppression without external biasing.
How does the 5.2pF channel capacitance affect CAN FD signal integrity at 5 Mbps?
At 5 Mbps, the 5.2pF capacitance introduces negligible rise-time degradation (<100ps added delay) and maintains differential impedance stability, preventing bit errors or eye closure. Matched capacitance (ΔCT/CT ≤ 0.5%) further ensures <10 ps inter-channel skew, preserving differential timing margins required by ISO 11898-2.
Is PPAP documentation available for DESD1CANFD24VWQ-7?
Yes - Diodes Incorporated provides full PPAP documentation (including PSW, DFMEA, control plans, and test reports) for DESD1CANFD24VWQ-7, supporting automotive Tier 1 qualification processes. Aetrix Electronics can supply certified PPAP packages upon order confirmation for production ramp programs.
DESD1CANFD24VWQ-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- 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):
- 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-323
DESD1CANFD24VWQ-7 FAQ
1.How can I place an order for DESD1CANFD24VWQ-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DESD1CANFD24VWQ-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 DESD1CANFD24VWQ-7 reliable?
The price and inventory of DESD1CANFD24VWQ-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DESD1CANFD24VWQ-7 is usually 5 days.
3.What payment methods are accepted for DESD1CANFD24VWQ-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DESD1CANFD24VWQ-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DESD1CANFD24VWQ-7?
DESD1CANFD24VWQ-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DESD1CANFD24VWQ-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 DESD1CANFD24VWQ-7?
For technical support, including DESD1CANFD24VWQ-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DESD1CANFD24VWQ-7 requirements.
6.How does Aetrix verify that DESD1CANFD24VWQ-7 is sourced from the original manufacturer or authorized distributors?
All DESD1CANFD24VWQ-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 DESD1CANFD24VWQ-7 meets industry standards.
7.What is the process for return or replacement of DESD1CANFD24VWQ-7?
All DESD1CANFD24VWQ-7 units undergo pre-shipment inspection (PSI). If there is an issue with DESD1CANFD24VWQ-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 DESD1CANFD24VWQ-7 part is unused and in its original packaging.
Return procedure for DESD1CANFD24VWQ-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DESD1CANFD24VWQ-7 Tags
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Diodes Incorporated
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