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Diodes Incorporated DUP1105SOQ-7
- Part No.:
- DUP1105SOQ-7
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
DUP1105SOQ-7.pdf
- Description:
- TVS DIODE 24VWM 44VC SOT23 T&R
- Quantity:
- Payment:
- Shipping:
Inventory:6,000
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Product details
Overview
DUP1105SOQ from Diodes Incorporated is a dual-channel automotive-grade TVS diode array designed for CAN/LIN bus line protection. It provides ±30kV IEC 61000-4-2 ESD immunity, clamps transients to ≤44V at 8A (8/20µs), and features 24V reverse standoff voltage and 60pF channel capacitance-enabling robust signal integrity in automotive body control modules and LIN sensor networks.
For engineers reviewing the DUP1105SOQ datasheet, DUP1105SOQ pinout, DUP1105SOQ application, or DUP1105SOQ equivalent, this device serves as a compact, AEC-Q101-qualified transient suppressor for bidirectional CAN/LIN data lines where low capacitance, high surge rating, and automotive reliability are mandatory.
Technical Context
This dual-line TVS array uses avalanche breakdown clamping to limit transient overvoltages on two independent signal paths. Each channel has a specified breakdown voltage of 25.7V (min) and clamps to 40V at 5A and 44V at 8A under standardized 8/20µs waveforms.
Its 60pF input capacitance and 100nA leakage at 24V ensure minimal signal distortion on low-speed automotive buses. The device operates across –65°C to +150°C and is qualified per AEC-Q101 for high-reliability automotive deployment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage | 24 V - Maximum continuous operating voltage before clamping begins; matches typical CAN/LIN common-mode range. |
| Breakdown Voltage (VBR) | 25.7 V (min) - Confirmed avalanche initiation threshold at 1mA; ensures reliable triggering above bus operating voltage. |
| Clamping Voltage (IPP = 8A) | 44 V - Peak voltage seen by protected transceiver during worst-case 8/20µs surge; stays within IC absolute max ratings. |
| Peak Pulse Power | 350 W - Sustained transient energy handling per channel; meets ISO 7637-3 pulse 3b requirements. |
| Channel Capacitance | 60 pF - Measured at 0V, 1MHz; preserves signal edge rate on LIN (≤20kbps) and low-speed CAN (≤125kbps). |
| ESD Rating (IEC 61000-4-2) | ±30 kV contact / ±30 kV air - Full system-level ESD immunity without external shielding or layout mitigation. |
| Leakage Current (IRM) | 100 nA max at 24V - Negligible DC loading on bus bias networks; avoids false wake-up in sleep-mode nodes. |
Pinout & Package
Package: SOT23 - surface-mount, 3-pin plastic package with matte tin-plated Alloy 42 leadframe; moisture sensitivity level 1; UL 94V-0 rated molding compound; weight ≈ 0.009 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode of Channel 1 | Connects to LIN/CAN data line (e.g., LIN Bus); forms cathode-to-rail clamp path with Pin 2. |
| Pin 2 | Cathode (Common) | Shared cathode tied to ground plane; enables bidirectional clamping for both channels via single reference node. |
| Pin 3 | Anode of Channel 2 | Connects to second signal line (e.g., CAN_H or auxiliary LIN); symmetric protection topology with Pin 1. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-channel monolithic integration | Single SOT23 package protects two independent bus lines-reduces PCB area vs. discrete TVS pairs and eliminates inter-channel skew. |
| AEC-Q101 qualification | Validated for automotive temperature cycling, HTRB, and ESD stress-ensures long-term reliability in engine bay and chassis-mounted ECUs. |
| Low 60pF capacitance | Maintains signal rise/fall times on LIN (≤20kbps) and fault-tolerant CAN without added termination or equalization. |
| ±30kV IEC 61000-4-2 rating | Eliminates need for secondary ESD protection stages in assembly; simplifies design validation for OEM EMC test plans. |
| Lead-free & halogen-free | Complies with RoHS 3 and automotive "Green" standards (<900ppm Br/Cl, <1000ppm Sb); supports global vehicle recycling mandates. |
Applications
| Body Control Module (BCM) | LIN Slave Node Protection |
|---|---|
Use Scenario: Protecting LIN communication between BCM and door module actuators (window lifters, mirror controls) exposed to cable harness ESD events. IC Role / Device Role / Timing Role: Bidirectional transient suppressor on LIN bus line; clamps ESD pulses before they reach the LIN transceiver's input stage. Use Value: Prevents latch-up or permanent damage to the LIN transceiver IC while maintaining <1µs response time and <60pF loading. | Use Scenario: Safeguarding LIN sensors (e.g., rain/light sensors) mounted on vehicle exterior surfaces subject to direct human contact discharge. IC Role / Device Role / Timing Role: Primary ESD interface protector placed at connector entry point; shunts ±30kV contact discharge to ground. Use Value: Enables single-stage protection architecture-no additional RC filters or ferrites required for IEC 61000-4-2 compliance. |
| CAN Gateway Interface | Automotive Diagnostic Port (OBD-II) |
Use Scenario: Shielding low-speed CAN lines connecting gateway MCU to legacy sub-networks (e.g., instrument cluster, HVAC) in mixed-speed architectures. IC Role / Device Role / Timing Role: Line-side TVS on CAN_H/CAN_L differential pair; suppresses coupled transients from adjacent power wiring. Use Value: Limits clamped voltage to ≤44V-well below ISO 11898-2 transceiver absolute maximum ratings-preserving data integrity during load dump events. | Use Scenario: Hardening OBD-II connector pins against accidental ESD during technician probing or aftermarket tool attachment. IC Role / Device Role / Timing Role: First-line defense on diagnostic bus lines (K-Line, L-Line); absorbs fast-rising ESD without affecting protocol timing. Use Value: Guarantees uninterrupted diagnostics session startup-even after repeated ±30kV contact discharges-without firmware reset or bus arbitration loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel automotive TVS applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMF15A (ON Semiconductor) | Single-channel, 15V VRWM, 300W PPP, 100pF capacitance | Requires two devices for dual-line protection; higher capacitance degrades LIN edge rate | Use only if board space allows discrete placement and 100pF is acceptable for target data rate. |
| TPD2E001DRYR (Texas Instruments) | Two-channel, 5V VRWM, 200W PPP, 12pF capacitance, integrated ESD diodes | Designed for USB/I²C; not AEC-Q101 qualified; insufficient clamping headroom for 24V CAN/LIN | Not suitable for automotive bus protection-lacks voltage rating and qualification for harsh environments. |
Compared with SMF15A and TPD2E001DRYR, DUP1105SOQ uniquely delivers AEC-Q101 qualification, 24V standoff, 60pF capacitance, and 350W per-channel surge capability in a single SOT23-making it the only drop-in solution for space-constrained, high-reliability CAN/LIN interfaces.
Availability
DUP1105SOQ is available at Aetrix Electronics and suitable for automotive body electronics, industrial control networks, and LIN/CAN-based sensor systems requiring stable component supply across extended product lifecycles.
Supply support for DUP1105SOQ 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.
The DUP1105SOQ belongs to Diodes' Automotive TVS Diode Array product line-engineered specifically for ESD and surge protection of serial bus interfaces in vehicles meeting stringent AEC-Q101 and ISO 16750 requirements.
FAQ
What is the maximum clamping voltage of DUP1105SOQ under an 8A 8/20µs surge?
The maximum clamping voltage is 44V, measured at 8A peak pulse current with an 8/20µs waveform per Figure 1 in DS37478 Rev. 2–2. This value is guaranteed across the full operating temperature range (–65°C to +150°C) and ensures compatibility with standard CAN/LIN transceivers rated for ≤58V absolute maximum.
Is DUP1105SOQ compatible with both LIN and high-speed CAN physical layers?
DUP1105SOQ is optimized for LIN and low-speed/fault-tolerant CAN (≤125kbps) due to its 60pF channel capacitance. While it meets ISO 11898-3 requirements for fault-tolerant CAN, its capacitance exceeds recommended limits for high-speed CAN (ISO 11898-2, >500kbps), where <30pF is typically required to maintain signal integrity.
Does DUP1105SOQ require external biasing or series impedance for proper operation?
No external biasing or series impedance is required. DUP1105SOQ operates passively as a shunt TVS device-connected directly between signal line and ground. Its low leakage (<100nA at 24V) avoids loading LIN pull-up resistors or disturbing CAN common-mode voltage.
How is the AEC-Q101 qualification verified for DUP1105SOQ?
AEC-Q101 qualification was performed per stress test conditions including HTGB (1000h @ 150°C), TCT (1000 cycles, –40°C to +150°C), and ESD (HBM ≥2kV, MM ≥200V). Full test reports are available through Diodes Incorporated's PPAP documentation package upon request for qualified automotive customers.
DUP1105SOQ-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:
- 2
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 24V (Max)
- Voltage - Breakdown (Min):
- 25.7V
- Voltage - Clamping (Max) @ Ipp:
- 44V
- Current - Peak Pulse (10/1000µs):
- 8A
- Power - Peak Pulse:
- 350W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 60pF @ 1MHz (Max)
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
DUP1105SOQ-7 FAQ
1.How can I place an order for DUP1105SOQ-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DUP1105SOQ-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 DUP1105SOQ-7 reliable?
The price and inventory of DUP1105SOQ-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DUP1105SOQ-7 is usually 5 days.
3.What payment methods are accepted for DUP1105SOQ-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DUP1105SOQ-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DUP1105SOQ-7?
DUP1105SOQ-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DUP1105SOQ-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 DUP1105SOQ-7?
For technical support, including DUP1105SOQ-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DUP1105SOQ-7 requirements.
6.How does Aetrix verify that DUP1105SOQ-7 is sourced from the original manufacturer or authorized distributors?
All DUP1105SOQ-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 DUP1105SOQ-7 meets industry standards.
7.What is the process for return or replacement of DUP1105SOQ-7?
All DUP1105SOQ-7 units undergo pre-shipment inspection (PSI). If there is an issue with DUP1105SOQ-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 DUP1105SOQ-7 part is unused and in its original packaging.
Return procedure for DUP1105SOQ-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DUP1105SOQ-7 Tags
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