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Diodes Incorporated DUP3105SOQ-7
- Part No.:
- DUP3105SOQ-7
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
DUP3105SOQ-7.pdf
- Description:
- TVS DIODE 32VWM 66VC SOT23 T&R
- Quantity:
- Payment:
- Shipping:
Inventory:819
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Product details
Overview
DUP3105SOQ-7 from Diodes Incorporated is a dual-channel automotive-grade TVS diode array designed for CAN bus line protection in AEC-Q101-compliant vehicle networks. It delivers 35.6V breakdown voltage, ±30kV IEC 61000-4-2 ESD immunity (contact/air), 8A peak pulse current (8/20µs), 30pF channel capacitance, and 59V clamping at 5A - enabling robust transient suppression for CAN transceivers in harsh automotive environments.
For engineers reviewing the DUP3105SOQ-7 datasheet, DUP3105SOQ-7 pinout, DUP3105SOQ-7 application, or DUP3105SOQ-7 equivalent, this device serves as a compact, RoHS-compliant, SOT23-packaged dual-line protector optimized for CAN/LIN physical layer interface integrity under ESD, EFT, and surge stress.
Technical Context
This dual-line TVS array uses bidirectional avalanche junctions per channel to clamp transient overvoltages above 35.6V while maintaining low leakage (<100nA at 32V) and minimal signal distortion via 30pF input capacitance. Its 350W peak power rating (8/20µs) and 417°C/W thermal resistance are specified for FR-4 PCB mounting with Diodes' recommended SOT23 pad layout.
The device operates across –65°C to +150°C, meets AEC-Q101 stress testing for high-reliability automotive use, and features matte tin-plated Alloy 42 leads compatible with standard reflow soldering per MIL-STD-202.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (Min) | 35.6V - Ensures reliable conduction onset above normal CAN common-mode range (±30V), preventing false triggering during bus idle states. |
| IPP (Max) | 8A - Withstands ISO 7637-2 Pulse 1/2a/3a surges without degradation when used with proper PCB layout. |
| CT | 30pF - Limits signal rise-time degradation on CAN FD (up to 5 Mbps) and LIN interfaces without violating timing budgets. |
| VCL @ 5A | 59V - Clamps transients below CAN transceiver absolute maximum rating (typically 70V), preserving IC integrity. |
| IR @ VRWM | 100nA max - Minimizes standby current draw and avoids loading of high-impedance bus termination networks. |
| Package | SOT23 - Enables space-constrained placement adjacent to CAN transceiver pins with standard pick-and-place compatibility. |
Pinout & Package
Package: SOT23 (3-pin, single-row, surface-mount). Dimensions per Diodes Inc. outline: 2.90mm × 1.30mm × 1.03mm (L × W × H), 0.915mm lead pitch, 0.009g weight. Moisture sensitivity level 1 (J-STD-020).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | CAN_H Line Anode | Connects to high-side CAN bus line; avalanche junction conducts during positive transients to ground. |
| Pin 2 | Ground (GND) | Common cathode reference for both channels; must be low-inductance connection to system ground plane. |
| Pin 3 | CAN_L Line Anode | Connects to low-side CAN bus line; symmetric clamping behavior matches Pin 1 for differential protection. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-channel bidirectional protection | Single SOT23 package protects both CAN_H and CAN_L lines simultaneously with matched VBR and CT, eliminating inter-channel skew. |
| IEC 61000-4-2 ±30kV ESD rating | Validated immunity ensures no latch-up or parametric shift after repeated contact/air discharges - critical for assembly-line handling and field reliability. |
| AEC-Q101 qualification | Passed temperature cycling, HTRB, AC/HAST, and mechanical shock tests required for under-hood automotive deployment. |
| Lead-free & halogen-free "Green" construction | Meets EU RoHS 2 (2011/65/EU) and automotive ELV directives with <900ppm Br/Cl and <1000ppm Sb - supports end-of-life recycling compliance. |
Applications
| Automotive CAN Bus Interface | Industrial CANopen Network Node |
|---|---|
Use Scenario: Protection of CAN transceivers (e.g., TJA1042, SN65HVD230) in engine control units exposed to load dump and ESD during service. IC Role / Device Role / Timing Role: Dual-line transient voltage suppressor placed directly at connector entry point, before bus termination resistors. Use Value: Prevents permanent damage from ±30kV ESD events and limits clamped voltage to 59V - below transceiver VCC-to-bus absolute max rating. | Use Scenario: Securing CANopen slave nodes in factory automation PLCs subject to cable coupling noise and maintenance-related ESD. IC Role / Device Role / Timing Role: Low-capacitance (30pF) protector preserving signal edge integrity up to 1 Mbps CAN baud rate without reflection-induced jitter. Use Value: Maintains bus timing margin by limiting added capacitance to <35pF per line - avoids bit error rate increase in multi-drop topologies. |
| Automotive LIN Bus Node | Body Control Module (BCM) Subsystem |
Use Scenario: ESD hardening of LIN transceivers (e.g., TLE7259-3GE) in door modules where harness routing increases susceptibility. IC Role / Device Role / Timing Role: Dual-channel TVS co-located with LIN transceiver IC to suppress fast-rising transients from nearby motor actuation. Use Value: 30pF capacitance prevents LIN 19.2 kbps waveform distortion, ensuring reliable header detection and checksum validation. | Use Scenario: Protecting CAN/LIN mixed-signal subsystems in BCMs integrating lighting, window lift, and mirror controls. IC Role / Device Role / Timing Role: Single-component solution covering both bus types reduces BOM count and PCB area versus discrete TVS arrays. Use Value: SOT23 footprint allows placement within 5mm of each transceiver, minimizing loop inductance and improving high-frequency surge rejection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-line CAN bus protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SM712-TP | Higher VBR (13.3V/26.5V asymmetrical), lower clamping (23V/40V), 100pF capacitance | Better suited for RS-485; excessive capacitance degrades CAN FD >2 Mbps signaling | Select only for legacy CAN 2.0B (125 kbps–1 Mbps) where lower clamping voltage outweighs bandwidth penalty. |
| SP1003-01UTG | Unidirectional configuration (single anode), 30pF, 30kV ESD, but requires external GND tie for dual-line use | Needs two devices + shared ground trace; increases layout complexity and parasitic inductance | Prefer only if existing design uses unidirectional TVS and cannot accommodate dual-anode topology. |
Compared with SM712-TP and SP1003-01UTG, DUP3105SOQ-7 uniquely combines symmetrical bidirectional clamping, 30pF capacitance, and AEC-Q101 qualification in one SOT23 package - making it the only drop-in solution for new automotive CAN/LIN designs requiring full compliance and signal fidelity.
Availability
DUP3105SOQ-7 is available at Aetrix Electronics and suitable for automotive ECUs, industrial CANopen nodes, and body control modules requiring stable component supply with full AEC-Q101 traceability and RoHS/Green compliance.
Supply support for DUP3105SOQ-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, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and the Americas.
This device belongs to Diodes' Automotive Protection Solutions product line, engineered specifically to meet stringent ISO 16750 and AEC-Q101 requirements for transient suppression in vehicle networking interfaces.
FAQ
What is the maximum operating temperature for DUP3105SOQ-7?
The DUP3105SOQ-7 is rated for continuous operation from –65°C to +150°C junction temperature. Its thermal resistance (RθJA) is 417°C/W on a standard FR-4 PCB with Diodes' recommended SOT23 pad layout, allowing safe dissipation of 300mW at +85°C ambient.
Does DUP3105SOQ-7 support CAN FD data rates?
Yes - its 30pF channel capacitance and symmetrical 35.6V breakdown ensure minimal signal distortion up to 5 Mbps CAN FD. Measured junction capacitance remains stable below 35pF across 0–32V reverse bias, preserving edge integrity required for high-speed arbitration and data phases.
How is the ground connection implemented in the SOT23 package?
Pin 2 is the dedicated ground terminal, serving as the common cathode for both TVS junctions. It must be connected to a low-inductance, solid ground plane - not a daisy-chained or narrow trace - to maintain clamping performance during 8/20µs surges exceeding 5A peak current.
Is DUP3105SOQ-7 PPAP capable for automotive production?
Yes - as stated in Diodes' datasheet notes, all automotive-grade parts including DUP3105SOQ-7 are PPAP capable. Full documentation (PSW, ISIR, test reports per AEC-Q101) is available upon request for Tier 1 supplier qualification and production part approval.
DUP3105SOQ-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):
- 32V (Max)
- Voltage - Breakdown (Min):
- 35.6V
- Voltage - Clamping (Max) @ Ipp:
- 66V
- Current - Peak Pulse (10/1000µs):
- 8A
- Power - Peak Pulse:
- 350W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 30pF @ 1MHz (Max)
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
DUP3105SOQ-7 FAQ
1.How can I place an order for DUP3105SOQ-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DUP3105SOQ-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 DUP3105SOQ-7 reliable?
The price and inventory of DUP3105SOQ-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DUP3105SOQ-7 is usually 5 days.
3.What payment methods are accepted for DUP3105SOQ-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DUP3105SOQ-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DUP3105SOQ-7?
DUP3105SOQ-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DUP3105SOQ-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 DUP3105SOQ-7?
For technical support, including DUP3105SOQ-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DUP3105SOQ-7 requirements.
6.How does Aetrix verify that DUP3105SOQ-7 is sourced from the original manufacturer or authorized distributors?
All DUP3105SOQ-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 DUP3105SOQ-7 meets industry standards.
7.What is the process for return or replacement of DUP3105SOQ-7?
All DUP3105SOQ-7 units undergo pre-shipment inspection (PSI). If there is an issue with DUP3105SOQ-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 DUP3105SOQ-7 part is unused and in its original packaging.
Return procedure for DUP3105SOQ-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DUP3105SOQ-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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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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