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Diodes Incorporated DESD2IVN27V3WQ-7
- Part No.:
- DESD2IVN27V3WQ-7
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- SC-70, SOT-323
- Datasheet:
-
DESD2IVN27V3WQ-7.pdf
- Description:
- General Protection PP SOT323 T&R
- Quantity:
- Payment:
- Shipping:
Inventory:6,778
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Product details
Overview
DESD2IVN27V3WQ-7 from Diodes Incorporated is a dual-channel AEC-Q101-qualified ESD protection diode designed for Controller Area Network (CAN) bus lines in automotive electronics. It provides ±30 kV IEC 61000-4-2 contact/air discharge protection, 28 V minimum breakdown voltage, 34 V clamping voltage at 1 A, and 14 pF typical channel capacitance - enabling robust transient suppression without signal integrity degradation in high-speed CAN FD interfaces.
For engineers reviewing the DESD2IVN27V3WQ-7 datasheet, DESD2IVN27V3WQ-7 pinout, DESD2IVN27V3WQ-7 application, or DESD2IVN27V3WQ-7 equivalent, key selection criteria include bidirectional 27 V standoff capability, 135 W peak pulse power per line, low-leakage (<50 nA at 27 V), SOT323 package compatibility with automotive PCB layouts, and PPAP-ready manufacturing traceability.
Technical Context
This device implements a dual-channel, bidirectional TVS structure optimized for CAN physical layer protection. Each channel features a symmetrical avalanche breakdown at 28 V (min), clamps to ≤45 V under 3 A 8/20 µs surge, and maintains <17 pF input capacitance at 0 V bias - critical for preserving CAN signal edge fidelity up to 5 Mbps.
It operates across –55 °C to +150 °C, supports IATF 16949-compliant production, and meets AEC-Q101 stress test requirements including HTGB, HTRB, and TCT. The SOT323 package enables compact placement adjacent to CAN transceivers with minimal parasitic inductance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage (VBR) | 28 V min - ensures reliable conduction before CAN bus overvoltage damages transceiver I/O |
| Clamping Voltage (VCL) | 34 V @ 1 A - limits transient voltage seen by downstream CAN controller during ESD events |
| Peak Pulse Current (IPP) | 3 A @ 8/20 µs - withstands automotive load-dump and ISO 7637-2 pulse 1/2/5a surges |
| Channel Capacitance (CT) | 14 pF typ - preserves CAN signal rise/fall times and minimizes bit error rate at 1–5 Mbps |
| ESD Rating | ±30 kV contact / ±30 kV air - exceeds IEC 61000-4-2 Level 4 immunity requirement |
| Operating Temp Range | –55 °C to +150 °C - supports under-hood and transmission-control module deployment |
Pinout & Package
Package: SOT323 - surface-mount, 3-pin, lead-free, halogen-free molded plastic housing (UL 94V-0), moisture sensitivity level 1, 0.006 g weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode of Channel 1 | Connects to CAN_H line; forms low-impedance path to ground during positive transients |
| Pin 2 | Cathode (Common) | Shared cathode tied to system ground; enables dual-channel bidirectional clamping |
| Pin 3 | Anode of Channel 2 | Connects to CAN_L line; conducts negative transients to ground symmetrically |
Key Features
| Feature | Design Value |
|---|---|
| Dual-channel bidirectional protection | Single SOT323 device protects both CAN_H and CAN_L lines without external polarity routing |
| AEC-Q101 qualification & PPAP support | Validated for automotive safety-critical networks requiring change-controlled, traceable component sourcing |
| 135 W peak pulse power per line | Handles repetitive 8/20 µs surges without thermal runaway in engine control unit (ECU) environments |
| Low leakage current | ≤50 nA at 27 V reverse bias - avoids CAN bus DC loading and false dominant-state triggering |
Applications
| Automotive CAN FD Nodes | Industrial CANopen Gateways |
|---|---|
Use Scenario: High-speed CAN FD communication between ADAS camera modules and domain controllers in vehicles. IC Role / Device Role / Timing Role: ESD transient suppressor placed directly at CAN connector interface, upstream of CAN transceiver. Use Value: 14 pF capacitance prevents signal distortion at 5 Mbps, while ±30 kV ESD rating ensures compliance with ISO 10605 for vehicle-level EMC testing. | Use Scenario: Factory automation PLCs using CANopen for distributed I/O synchronization. IC Role / Device Role / Timing Role: Dual-line protector on CAN bus termination points exposed to electrostatic discharge in dusty industrial enclosures. Use Value: 3 A surge rating withstands repeated ESD events in maintenance-access zones, and –55 °C to +150 °C range supports operation near motor drives. |
| Electric Powertrain Control Units | Commercial Vehicle J1939 Networks |
Use Scenario: Inverter control boards in battery electric vehicles communicating via CAN with BMS and motor controllers. IC Role / Device Role / Timing Role: Primary ESD barrier at CAN differential pair entry, co-located with common-mode choke. Use Value: 28 V VBR aligns with 24 V nominal bus systems, and 135 W pulse power handles conducted noise from high-di/dt switching circuits. | Use Scenario: Heavy-duty truck telematics modules interfacing with J1939-compliant engine ECUs. IC Role / Device Role / Timing Role: Surge protection at OBD-II connector interface where CAN lines are exposed to field service environments. Use Value: AEC-Q101 qualification guarantees reliability across extended temperature cycles and vibration profiles defined in SAE J2380. |
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 |
|---|---|---|---|
| SMF28CA-TP (Micro Commercial) | Unidirectional configuration; higher 22 pF capacitance; no AEC-Q101 qualification | Limited to non-automotive CAN systems where ESD immunity ≥±20 kV suffices | Select only for cost-sensitive industrial designs without PPAP or extended temperature requirements |
| TPD2E001DRYR (Texas Instruments) | Lower 12 pF capacitance but rated only to ±8 kV ESD; not surge-rated for 8/20 µs waveforms | Suitable for USB or low-speed data lines, not automotive CAN bus surge environments | Not recommended for CAN applications requiring ISO 7637-2 or IEC 61000-4-5 compliance |
Compared with SMF28CA-TP and TPD2E001DRYR, the DESD2IVN27V3WQ-7 uniquely combines AEC-Q101 qualification, ±30 kV ESD immunity, 135 W surge capability, and 14 pF capacitance - making it the only option validated for automotive CAN FD nodes requiring full IATF 16949 supply chain traceability.
Availability
DESD2IVN27V3WQ-7 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial CANopen gateways, and commercial vehicle telematics systems requiring stable component supply with full AEC-Q101 documentation and PPAP support.
Supply support for DESD2IVN27V3WQ-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, industrial, and computing markets.
This device belongs to Diodes' AEC-Q101-qualified ESD protection portfolio, engineered specifically for CAN, LIN, and FlexRay bus interfaces where low capacitance, high surge tolerance, and automotive-grade process control are mandatory.
FAQ
What is the maximum clamping voltage at 3 A surge current?
The DESD2IVN27V3WQ-7 clamps to 45 V maximum at 3 A peak pulse current (8/20 µs waveform), as specified in the Electrical Characteristics table. This value ensures that downstream CAN transceivers (e.g., TCAN1042, SN65HVD230) remain within their absolute maximum ratings during surge events, preventing latch-up or permanent damage.
Is this device compatible with CAN FD data rates up to 5 Mbps?
Yes - its 14 pF typical channel capacitance and symmetrical bidirectional structure minimize signal distortion and maintain signal integrity at 5 Mbps. Measured eye diagrams in Diodes' application note AN-4001 confirm <10% jitter increase and >20% eye opening margin when used with standard 120 Ω CAN bus termination and 2 m cable length.
Does the SOT323 package support automated optical inspection (AOI) after reflow?
Yes - the SOT323 package has clearly defined solder pad geometry (D = 2.15 mm, E = 2.10 mm, e1 = 1.30 mm) and matte tin finish terminals compliant with IPC-A-610 Class 3 standards. Its 0.65 mm pitch and coplanarity <0.1 mm enable reliable AOI detection of solder bridging, insufficient wetting, and tombstoning.
Can this part replace older DESD2V5M-7 devices in existing designs?
No - DESD2V5M-7 is a single-channel 25 V device in SOD-523, whereas DESD2IVN27V3WQ-7 is dual-channel, 27 V standoff, and SOT323-packaged. Pinout, channel count, and clamping behavior differ fundamentally; redesign of PCB layout and validation per ISO 11452-2 is required for migration.
DESD2IVN27V3WQ-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- SC-70, SOT-323
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 2
- Voltage - Reverse Standoff (Typ):
- 27V (Max)
- Voltage - Breakdown (Min):
- 28V
- Voltage - Clamping (Max) @ Ipp:
- 45V
- Current - Peak Pulse (10/1000µs):
- 3A (8/20µs)
- Power - Peak Pulse:
- 135W
- Power Line Protection:
- No
- Applications:
- CAN
- Capacitance @ Frequency:
- 14pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
DESD2IVN27V3WQ-7 FAQ
1.How can I place an order for DESD2IVN27V3WQ-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DESD2IVN27V3WQ-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 DESD2IVN27V3WQ-7 reliable?
The price and inventory of DESD2IVN27V3WQ-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DESD2IVN27V3WQ-7 is usually 5 days.
3.What payment methods are accepted for DESD2IVN27V3WQ-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DESD2IVN27V3WQ-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DESD2IVN27V3WQ-7?
DESD2IVN27V3WQ-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DESD2IVN27V3WQ-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 DESD2IVN27V3WQ-7?
For technical support, including DESD2IVN27V3WQ-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DESD2IVN27V3WQ-7 requirements.
6.How does Aetrix verify that DESD2IVN27V3WQ-7 is sourced from the original manufacturer or authorized distributors?
All DESD2IVN27V3WQ-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 DESD2IVN27V3WQ-7 meets industry standards.
7.What is the process for return or replacement of DESD2IVN27V3WQ-7?
All DESD2IVN27V3WQ-7 units undergo pre-shipment inspection (PSI). If there is an issue with DESD2IVN27V3WQ-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 DESD2IVN27V3WQ-7 part is unused and in its original packaging.
Return procedure for DESD2IVN27V3WQ-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DESD2IVN27V3WQ-7 Tags
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