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Diodes Incorporated D3V3L2BS3LPQ-7B
- Part No.:
- D3V3L2BS3LPQ-7B
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- 3-UFDFN
- Datasheet:
-
D3V3L2BS3LPQ-7B.pdf
- Description:
- GENERAL PROTECTION PP X1-DFN1006
- Quantity:
- Payment:
- Shipping:
Inventory:8,887
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Product details
Overview
D3V3L2BS3LPQ-7B from Diodes Incorporated is a bidirectional dual-channel TVS diode array designed for ESD and surge protection of high-speed digital I/O lines. It features a 3.3V reverse working voltage, ±30kV IEC 61000-4-2 contact/air ESD rating, 8A peak pulse current (8/20µs), 18pF typical junction capacitance, and AEC-Q101 qualification-targeting SPI/I²C and UART bus protection in automotive infotainment and body control modules.
For engineers reviewing the D3V3L2BS3LPQ-7B datasheet, D3V3L2BS3LPQ-7B pinout, D3V3L2BS3LPQ-7B application, or D3V3L2BS3LPQ-7B equivalent, key selection criteria include low clamping voltage (4.8V @ 1A), minimal signal distortion due to low capacitance, automotive-grade reliability, and compatibility with space-constrained DFN1006-3 layouts on high-density PCBs.
Technical Context
This device implements a symmetric bidirectional TVS structure across two independent channels (Pin1–Pin3 and Pin2–Pin3), enabling simultaneous protection of differential or single-ended data lines without polarity constraints. Each channel delivers identical ESD robustness (±30kV) and clamping performance (7.3V @ 8A).
Its X1-DFN1006-3 package integrates a common cathode (Pin3) shared between both anode terminals (Pin1/Pin2), supporting compact routing for adjacent I/O pairs while maintaining isolation between protected lines via controlled dynamic resistance (0.16Ω typical).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Working Voltage | 3.3V - Ensures no leakage or conduction during normal 3.3V I/O operation |
| Breakdown Voltage (Min) | 3.8V - Triggers clamping before damage to downstream 3.3V logic |
| Clamping Voltage @ 1A | 4.8V - Limits transient overvoltage to safe margin above VCC |
| Peak Pulse Current | 8A (8/20µs) - Withstands IEC 61000-4-5 Level 3 surges |
| Junction Capacitance | 18pF @ 0V - Preserves signal integrity on >10Mbps I²C/SPI buses |
| ESD Rating | ±30kV air/contact - Meets automotive ESD immunity requirements per ISO 10605 |
| Operating Temp Range | −55°C to +150°C - Supports under-hood and cabin-mounted ECUs |
Pinout & Package
Package: X1-DFN1006-3 (1.0 × 0.6 × 0.4 mm, 3-terminal, lead-free, halogen-free, moisture sensitivity level 1).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode Channel 1 | Protects first I/O line (e.g., I²C SDA); bidirectionally referenced to Pin 3 |
| Pin 2 | Anode Channel 2 | Protects second I/O line (e.g., I²C SCL); independent but shares cathode |
| Pin 3 | Common Cathode | Ground reference for both channels; must connect to low-impedance system GND |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional dual-channel architecture | Enables protection of two independent 3.3V data lines with single footprint, eliminating need for discrete diodes per line |
| AEC-Q101 qualified | Validated for automotive use including temperature cycling, HTRB, and ESD stress per stress test plan |
| Low 18pF capacitance | Minimizes rise-time degradation and bit errors on 1–10 Mbps serial buses |
| 0.16Ω dynamic resistance | Reduces clamping voltage overshoot during fast transients, improving protection margin |
| Green, RoHS-compliant construction | Meets automotive ELV directive and OEM substance restrictions (Br/Cl <900ppm, Sb <1000ppm) |
Applications
| Automotive Infotainment I²C Bus | Body Control Module UART |
|---|---|
Use Scenario: Protecting I²C clock/data lines between MCU and touch controller in center console display. IC Role / Device Role / Timing Role: Bidirectional transient suppressor placed directly at connector interface to shunt ESD events before reaching SoC GPIO. Use Value: Prevents lockup or reset caused by ±30kV ESD discharge while preserving 400kHz timing margins with <18pF loading. | Use Scenario: Safeguarding UART TX/RX lines between gateway ECU and door module actuator driver. IC Role / Device Role / Timing Role: Dual-line TVS absorbing coupled surges from 12V power rail transients during load dump events. Use Value: Maintains UART communication integrity during 8A/8–20µs surges without signal distortion or false framing. |
| ADAS Camera Sensor Interface | Electric Power Steering (EPS) CAN Subsystem |
Use Scenario: Shielding MIPI I²C configuration bus between image sensor and processor in rear-view camera module. IC Role / Device Role / Timing Role: Low-capacitance ESD clamp co-located with sensor flex connector to minimize stub length and impedance discontinuity. Use Value: Enables reliable hot-plug detection and register programming under repeated ESD exposure in humid environments. | Use Scenario: Protecting non-CAN but CAN-adjacent diagnostic UART or firmware update lines in EPS motor control unit. IC Role / Device Role / Timing Role: Secondary protection layer isolating debug interfaces from main CAN transceiver's ground bounce and supply noise. Use Value: Avoids unintended reboots during CAN FD traffic bursts by limiting coupling into 3.3V logic rails. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel TVS protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ3.3A-Q | Unidirectional, SMA package (4.5 × 2.7 mm), higher capacitance (150pF), lower ESD rating (±30kV air only) | Requires separate devices per line; unsuitable for high-speed buses due to capacitance | Select only for cost-sensitive, low-frequency (<100kHz), non-automotive industrial I/O where board space is not constrained. |
| SP1003-030 | 3.3V bidirectional, SOT-23-3, 12pF capacitance, ±30kV ESD, but rated only to 3A IPP (8/20µs) | Limited surge handling; insufficient for IEC 61000-4-5 Level 3 compliance in automotive | Preferable for consumer IoT UART lines where surge risk is low and ultra-low capacitance is critical. |
Compared with SMAJ3.3A-Q and SP1003-030, D3V3L2BS3LPQ-7B uniquely combines AEC-Q101 qualification, 8A surge capability, and 18pF capacitance in a 1.0×0.6mm footprint-making it the only option validated for automotive serial bus protection requiring both ESD robustness and signal fidelity.
Availability
D3V3L2BS3LPQ-7B is available at Aetrix Electronics and suitable for automotive infotainment systems, body control modules, ADAS camera interfaces, and electric power steering subsystems requiring stable component supply across extended product lifecycles.
Supply support for D3V3L2BS3LPQ-7B 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 TVS portfolio, engineered specifically for high-speed digital interface protection in harsh automotive environments where ESD immunity, small size, and thermal stability are mandatory.
FAQ
What is the maximum operating temperature for D3V3L2BS3LPQ-7B?
The device operates from −55°C to +150°C, fully compliant with AEC-Q101 temperature cycling and storage requirements. Its 500°C/W junction-to-ambient thermal resistance assumes mounting on a standard FR-4 PCB with 2oz copper per Diodes' recommended pad layout, enabling reliable operation in engine bay or under-dash locations.
Can D3V3L2BS3LPQ-7B protect both I²C and SPI simultaneously?
Yes-it protects two independent lines, making it ideal for I²C (SDA + SCL) or SPI (MOSI + MISO) pairs. Its 18pF capacitance ensures minimal impact on rise/fall times up to 10Mbps, and bidirectional clamping handles voltage reversals inherent in open-drain I²C and push-pull SPI signaling without polarity concerns.
Is the X1-DFN1006-3 package compatible with standard reflow profiles?
Yes-the package is rated for moisture sensitivity level 1 (MSL-1) and supports JEDEC J-STD-020-compliant reflow. Its NiPdAu-plated copper leadframe ensures solderability per MIL-STD-202 Method 208, and the 0.35mm pitch allows compatibility with standard 0201-class stencil apertures and pick-and-place tooling.
Does D3V3L2BS3LPQ-7B require external biasing or series resistors?
No-this is a passive TVS diode array requiring no external components. It connects directly between I/O line and ground (via Pin3). Series resistors are unnecessary because its low dynamic resistance (0.16Ω) provides rapid clamping without added propagation delay or voltage drop during transients.
D3V3L2BS3LPQ-7B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- 3-UFDFN
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 2
- Voltage - Reverse Standoff (Typ):
- 3.3V (Max)
- Voltage - Breakdown (Min):
- 3.8V
- Voltage - Clamping (Max) @ Ipp:
- 7.3V (Typ)
- Current - Peak Pulse (10/1000µs):
- 8A (8/20µs)
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 18pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- X1-DFN1006-3
D3V3L2BS3LPQ-7B FAQ
1.How can I place an order for D3V3L2BS3LPQ-7B through Aetrix?
Please submit a Request for Quotation (RFQ) for D3V3L2BS3LPQ-7B 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 D3V3L2BS3LPQ-7B reliable?
The price and inventory of D3V3L2BS3LPQ-7B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for D3V3L2BS3LPQ-7B is usually 5 days.
3.What payment methods are accepted for D3V3L2BS3LPQ-7B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for D3V3L2BS3LPQ-7B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for D3V3L2BS3LPQ-7B?
D3V3L2BS3LPQ-7B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your D3V3L2BS3LPQ-7B 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 D3V3L2BS3LPQ-7B?
For technical support, including D3V3L2BS3LPQ-7B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your D3V3L2BS3LPQ-7B requirements.
6.How does Aetrix verify that D3V3L2BS3LPQ-7B is sourced from the original manufacturer or authorized distributors?
All D3V3L2BS3LPQ-7B 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 D3V3L2BS3LPQ-7B meets industry standards.
7.What is the process for return or replacement of D3V3L2BS3LPQ-7B?
All D3V3L2BS3LPQ-7B units undergo pre-shipment inspection (PSI). If there is an issue with D3V3L2BS3LPQ-7B, 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 D3V3L2BS3LPQ-7B part is unused and in its original packaging.
Return procedure for D3V3L2BS3LPQ-7B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
D3V3L2BS3LPQ-7B Tags
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