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Diodes Incorporated DESD2FLEX2SOQ-7
- Part No.:
- DESD2FLEX2SOQ-7
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
DESD2FLEX2SOQ-7.pdf
- Description:
- TVS DIODE 24VWM 41VC SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,648
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Product details
Overview
DESD2FLEX2SOQ-7 from Diodes Incorporated is a dual-channel AEC-Q101-qualified ESD protection diode designed specifically for automotive FlexRay bus lines. It delivers 230W peak pulse power per channel (8/20µs), clamps transients to ≤41V at 5A, and features 25pF typical channel capacitance with ±30kV IEC 61000-4-2 contact/air discharge rating.
For engineers reviewing the DESD2FLEX2SOQ-7 datasheet, DESD2FLEX2SOQ-7 pinout, DESD2FLEX2SOQ-7 application, or DESD2FLEX2SOQ-7 equivalent, key selection criteria include channel-to-channel capacitance matching, low-leakage operation (<10nA at 24V), AEC-Q101 qualification status, SOT23 package thermal resistance (417°C/W), and FlexRay-specific clamping voltage compliance.
Technical Context
This device implements bidirectional TVS architecture across two independent channels in a single SOT23-3L package, enabling symmetrical transient suppression on differential FlexRay bus pairs. Its 25.4V minimum breakdown voltage and 34V clamping at 1A ensure robust protection without interfering with 2.5V–5.5V FlexRay signal swing.
The 25pF typical input capacitance is optimized to minimize signal integrity degradation at FlexRay's 10Mbps data rate, while its 0.4Ω differential resistance supports fast transient response under 5A 8/20µs surges. Thermal design relies on FR-4 PCB pad layout per Diodes' SOT23 outline, delivering 300mW steady-state dissipation capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage (VBR) | 25.4V min - ensures reliable triggering above FlexRay common-mode voltage range |
| Clamping Voltage (VCL) | 41V max at 5A - limits bus voltage excursion during worst-case surge events |
| Channel Capacitance (CT) | 25pF typ - preserves signal integrity at 10Mbps FlexRay data rates |
| ESD Rating | ±30kV air/contact - exceeds IEC 61000-4-2 Level 4 immunity requirements |
| Peak Pulse Power | 230W per channel - sustains 8/20µs transients without degradation |
| Leakage Current (IRM) | <10nA at 24V - prevents bus loading and signal distortion in idle state |
Pinout & Package
Package: SOT23-3L, surface-mount, lead-free, RoHS-compliant, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Channel 1 Anode | Connects to FlexRay CH0 line; forms bidirectional clamp with Pin 2 |
| Pin 2 | Common Cathode | Shared cathode node for both channels; ties to system ground reference |
| Pin 3 | Channel 2 Anode | Connects to FlexRay CH1 line; forms bidirectional clamp with Pin 2 |
Key Features
| Feature | Design Value |
|---|---|
| Dual-channel FlexRay protection | Independent 25pF channels preserve differential signaling integrity at 10Mbps |
| AEC-Q101 qualification | Validated for automotive underhood environments (-65°C to +150°C operating range) |
| Low leakage performance | <10nA IR at VRWM enables minimal bus loading during sleep mode |
| Green packaging | Halogen- and antimony-free molding compound meets automotive environmental mandates |
Applications
| Automotive FlexRay Bus Nodes | Industrial CAN-FlexRay Gateways |
|---|---|
Use Scenario: Protecting ECUs connected to high-speed FlexRay backbone in ADAS domain controllers. IC Role / Device Role / Timing Role: Dual-channel bidirectional TVS diode placed directly at connector interface to suppress ESD and load dump transients. Use Value: Maintains <25pF channel capacitance to avoid signal rise/fall time degradation at 10Mbps, while clamping surges to ≤41V. | Use Scenario: Shielding mixed-protocol gateways that bridge CAN FD and FlexRay networks in vehicle body control modules. IC Role / Device Role / Timing Role: Front-end transient suppressor on FlexRay differential pair prior to physical layer transceiver input. Use Value: Enables coexistence of protocols by preventing cross-talk-induced latch-up via low-leakage (<10nA) operation at 24V standoff. |
| Automotive Powertrain FlexRay Sensors | FlexRay-Based X-by-Wire Systems |
Use Scenario: Safeguarding crankshaft/camshaft position sensors transmitting timing-critical data over FlexRay in engine control units. IC Role / Device Role / Timing Role: Point-of-entry ESD clamp on sensor-side FlexRay lines, mounted adjacent to connector pins. Use Value: Guarantees ≤41V clamping at 5A surge ensures downstream PHY ICs remain within absolute maximum ratings during cranking transients. | Use Scenario: Protecting steer-by-wire and brake-by-wire ECUs where FlexRay carries safety-critical actuation commands. IC Role / Device Role / Timing Role: Redundant dual-channel protector on primary and backup FlexRay buses per ISO 26262 ASIL-D requirements. Use Value: AEC-Q101 qualification and PPAP capability support functional safety documentation for ASIL-D decomposition. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel automotive ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SP1006-02UTG | Higher 30pF typical capacitance; lower 20V VBR; same SOT23-3L footprint | Better suited for lower-voltage LIN/CAN; marginal for 24V FlexRay standoff | Select only if system VRWM ≤20V and data rate ≤500kbps |
| TPD2E001DRYR | Single-channel, 10pF CT, no AEC-Q101 rating; DRY package (SOT-553) | Requires two devices per FlexRay pair; lacks automotive qualification and PPAP support | Acceptable for non-automotive industrial FlexRay prototypes only |
Compared with SP1006-02UTG and TPD2E001DRYR, DESD2FLEX2SOQ-7 uniquely combines AEC-Q101 qualification, 25.4V VBR, 25pF CT, and dual-channel integration in SOT23-making it the only drop-in solution for production automotive FlexRay nodes requiring PPAP and ASIL-aligned validation.
Availability
DESD2FLEX2SOQ-7 is available at Aetrix Electronics and suitable for automotive FlexRay bus nodes, industrial CAN-FlexRay gateways, and x-by-wire systems requiring stable component supply across multi-year production cycles.
Supply support for DESD2FLEX2SOQ-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 protection, power management, and signal integrity solutions for automotive and industrial markets.
The DESD2FLEX2SOQ-7 belongs to Diodes' AEC-Q101-qualified FLEXRAY ESD protection product line, engineered specifically to meet stringent electromagnetic compatibility and functional safety requirements of automotive serial bus architectures.
FAQ
What is the maximum clamping voltage of DESD2FLEX2SOQ-7 at 5A surge current?
The maximum clamping voltage is 41V under 8/20µs waveform conditions at 5A peak pulse current, measured per Figure 1 in DS39060 Rev. 2-2. This value ensures downstream FlexRay transceivers remain within their absolute maximum ratings during ISO 7637-2 Pulse 5a load dump events.
Does DESD2FLEX2SOQ-7 support bidirectional ESD protection on each channel?
Yes - each channel uses a back-to-back diode configuration between anode and common cathode, enabling symmetrical ±30kV ESD suppression per IEC 61000-4-2 on both FlexRay CH0 and CH1 lines without polarity constraints.
Is the SOT23-3L package of DESD2FLEX2SOQ-7 compatible with standard reflow profiles?
Yes - the device is qualified for IPC/JEDEC J-STD-020 moisture sensitivity level 1 and supports standard lead-free reflow profiles up to 260°C peak temperature, with matte tin plating ensuring solderability per MIL-STD-202 Method 208.
How does DESD2FLEX2SOQ-7 differ from generic dual TVS diodes in FlexRay applications?
Unlike generic dual TVS diodes, DESD2FLEX2SOQ-7 specifies 25pF typical capacitance at 5MHz, 25.4V minimum VBR, and AEC-Q101 qualification - all validated for 10Mbps FlexRay timing margins and automotive underhood thermal cycling, whereas generic parts lack this application-specific characterization.
DESD2FLEX2SOQ-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:
- -
- Capacitance @ Frequency:
- 25pF @ 5MHz
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
DESD2FLEX2SOQ-7 FAQ
1.How can I place an order for DESD2FLEX2SOQ-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DESD2FLEX2SOQ-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 DESD2FLEX2SOQ-7 reliable?
The price and inventory of DESD2FLEX2SOQ-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DESD2FLEX2SOQ-7 is usually 5 days.
3.What payment methods are accepted for DESD2FLEX2SOQ-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DESD2FLEX2SOQ-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DESD2FLEX2SOQ-7?
DESD2FLEX2SOQ-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DESD2FLEX2SOQ-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 DESD2FLEX2SOQ-7?
For technical support, including DESD2FLEX2SOQ-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DESD2FLEX2SOQ-7 requirements.
6.How does Aetrix verify that DESD2FLEX2SOQ-7 is sourced from the original manufacturer or authorized distributors?
All DESD2FLEX2SOQ-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 DESD2FLEX2SOQ-7 meets industry standards.
7.What is the process for return or replacement of DESD2FLEX2SOQ-7?
All DESD2FLEX2SOQ-7 units undergo pre-shipment inspection (PSI). If there is an issue with DESD2FLEX2SOQ-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 DESD2FLEX2SOQ-7 part is unused and in its original packaging.
Return procedure for DESD2FLEX2SOQ-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DESD2FLEX2SOQ-7 Tags
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