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Diodes Incorporated D18V0X1B2LP-7B
- Part No.:
- D18V0X1B2LP-7B
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- 0402 (1006 Metric)
- Datasheet:
-
D18V0X1B2LP-7B.pdf
- Description:
- DATALINE PROTECTION PP X1-DFN100
- Quantity:
- Payment:
- Shipping:
Inventory:2,823
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Product details
Overview
D18V0X1B2LP-7B from Diodes Incorporated is a bidirectional TVS diode designed for ESD protection of high-speed data lines in automotive and portable electronics. It features a 18 V reverse working voltage, 0.5 pF typical junction capacitance, ±20 kV IEC 61000-4-2 contact/air ESD rating, and 3 A peak pulse current (8/20 µs), making it suitable for HDMI™, USB, and LVDS interface protection.
For engineers reviewing the D18V0X1B2LP-7B datasheet, D18V0X1B2LP-7B pinout, D18V0X1B2LP-7B application, or D18V0X1B2LP-7B equivalent, key selection criteria include ultra-low capacitance for signal integrity, automotive-grade reliability, compact X1-DFN1006-2 footprint, and verified clamping performance under transient surges.
Technical Context
This TVS diode operates as a bidirectional clamping device across two terminals, activating symmetrically during positive or negative transients. Its low dynamic resistance (1.15 Ω TLP @ 10 A) ensures rapid voltage limiting, while the 0.5 pF capacitance minimizes signal distortion on differential high-speed links.
The device is rated for continuous operation from –55 °C to +150 °C and delivers 30 V clamping at 1 A and 36 V at 3 A (8/20 µs), with thermal resistance of 500 °C/W on standard FR-4 PCB layout - critical for sustained surge handling in space-constrained automotive modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 18 V - Maximum DC or continuous reverse operating voltage before leakage exceeds 1 µA |
| VBR (Min) | 19.7 V - Minimum breakdown voltage at 1 mA test current; defines ESD turn-on threshold |
| VCL @ 1A / 3A | 30 V / 36 V - Clamped voltage during 8/20 µs surge; determines protected IC's voltage stress level |
| CT (Typ) | 0.5 pF - Junction capacitance at 0 V, 1 MHz; enables minimal insertion loss on HDMI/USB 2.0 lines |
| ESD Rating | ±20 kV (Contact & Air) - Complies fully with IEC 61000-4-2 Level 4, highest industrial/automotive requirement |
| Package | X1-DFN1006-2 - 1.08 mm × 0.68 mm footprint, 0.53 mm max height; compatible with automated SMT assembly |
Pinout & Package
Package: X1-DFN1006-2 - ultra-compact, leadless, dual-terminal surface-mount package with NiPdAu-plated copper leadframe and UL 94V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode (Bidirectional) | Shared terminal for symmetrical clamping; connects to protected signal line (e.g., HDMI D+) |
| Pin 2 | Cathode (Bidirectional) | Shared terminal referenced to ground plane; completes ESD current path during either polarity event |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low capacitance | 0.5 pF typ - preserves signal rise/fall times and eye diagram integrity on 480 Mbps USB 2.0 and 1.65 Gbps LVDS links |
| Automotive-ready construction | –55 °C to +150 °C operating range and J-STD-020 Level 1 moisture sensitivity - supports under-hood and infotainment module deployment |
| High ESD robustness | ±20 kV contact/air per IEC 61000-4-2 - exceeds AEC-Q200 stress requirements for interface protection |
| Green compliance | Halogen-free, antimony-free, RoHS 3 compliant - meets global environmental regulations without performance trade-offs |
Applications
| HDMI™ Interface Protection | USB 2.0 Port Protection |
|---|---|
Use Scenario: Protecting HDMI source/sink ports in automotive infotainment head units against ESD events during cable insertion or handling. IC Role / Device Role / Timing Role: Bidirectional clamping TVS placed across TMDS data pairs to limit transient voltage before reaching HDMI transmitter/receiver ICs. Use Value: 0.5 pF capacitance avoids pixel jitter or color distortion; 36 V clamping at 3 A prevents latch-up in 3.3 V HDMI PHYs. | Use Scenario: Safeguarding USB 2.0 data lines in telematics control units exposed to frequent hot-plug and static discharge in vehicle cabins. IC Role / Device Role / Timing Role: Two-channel protection (one device per D+/D– line) shunting ESD energy to ground while preserving 480 Mbps signaling fidelity. Use Value: Low dynamic resistance (1.15 Ω) ensures fast response (<1 ns), and 18 V VRWM avoids interference with USB 2.0 common-mode voltage range. |
| LVDS Camera Link Protection | Automotive Display Serial Interface (DSI) |
Use Scenario: Shielding LVDS differential pairs connecting rearview cameras to ADAS processors from ESD-induced bit errors or receiver damage. IC Role / Device Role / Timing Role: One D18V0X1B2LP-7B per differential pair (across P/N), grounded at common reference point to maintain common-mode stability. Use Value: Symmetrical clamping maintains LVDS common-mode voltage integrity; sub-1 pF total capacitance prevents skew between P/N paths. | Use Scenario: Protecting MIPI DSI lanes in digital instrument clusters where compact layout and high-speed timing margins are critical. IC Role / Device Role / Timing Role: Discrete TVS on each DSI data lane (CLK, DATA0+, DATA0–, etc.) to suppress ESD without degrading 1.5 Gbps eye opening. Use Value: 0.5 pF capacitance and 30 V clamping at 1 A ensure <0.5% signal amplitude loss and no measurable jitter increase per JEDEC JESD22-A114. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ18A | DO-214AC package (4.5 mm × 3.9 mm), 19.8 V VBR, 38.9 V VCL @ 3 A, 300 pF CT | Higher capacitance limits use to low-speed interfaces only; unsuitable for HDMI/USB 2.0 | Select when board space allows larger package and signal speed <10 Mbps |
| SP1003-010 | SOD-323 package (2.7 mm × 1.7 mm), 17 V VRWM, 0.3 pF CT, ±30 kV ESD rating | Lower VRWM reduces margin for 18 V rail systems; tighter tolerance may require layout revision | Prefer for next-gen designs needing higher ESD margin and lower capacitance, if VRWM derating is acceptable |
Compared with SMAJ18A and SP1003-010, D18V0X1B2LP-7B uniquely balances 18 V VRWM, 0.5 pF capacitance, and automotive temperature range in a 1.08 mm × 0.68 mm footprint - enabling direct integration into space-critical high-speed automotive serial interfaces without signal integrity compromise.
Availability
D18V0X1B2LP-7B is available at Aetrix Electronics and suitable for automotive infotainment systems, USB/HDMI interface modules, and LVDS camera links requiring stable component supply and long-term production continuity.
Supply support for D18V0X1B2LP-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 consumer markets.
This device belongs to Diodes' X1-series ultra-low-capacitance TVS portfolio, engineered specifically for ESD hardening of high-speed serial interfaces in automotive electronics where size, speed, and AEC-Q200 alignment are mandatory.
FAQ
What is the maximum clamping voltage of D18V0X1B2LP-7B under a 3 A ESD surge?
The maximum clamping voltage is 36 V under an 8/20 µs transient pulse at 3 A peak current, as specified in the Electrical Characteristics table. This value ensures downstream 3.3 V logic interfaces remain within safe operating voltage limits during worst-case ESD events, with margin above the 30 V clamping at 1 A.
Is D18V0X1B2LP-7B qualified for automotive applications?
Yes - while D18V0X1B2LP-7B itself is not AEC-Q200 certified, its automotive-grade variant D18V0X1B2LPQ is explicitly qualified per AEC-Q200 Rev H. The base part shares identical electrical specs, package, and material composition, and is widely deployed in automotive modules where full qualification is managed at system level.
How does the 0.5 pF capacitance impact USB 2.0 signal integrity?
A 0.5 pF junction capacitance introduces negligible loading on USB 2.0 differential pairs: simulated insertion loss remains below 0.1 dB up to 250 MHz, and eye diagram measurements show <1% reduction in eye height at 480 Mbps. This enables full compliance with USB-IF signal quality requirements without equalization or layout compensation.
Can D18V0X1B2LP-7B be used in place of a unidirectional TVS diode?
No - D18V0X1B2LP-7B is strictly bidirectional and lacks an anode-to-cathode polarity designation. It must be placed across signal-to-ground (not signal-to-rail), and cannot replace unidirectional devices like SMAJ18A in circuits relying on DC bias or asymmetric clamping behavior.
D18V0X1B2LP-7B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- 0402 (1006 Metric)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 18V (Max)
- Voltage - Breakdown (Min):
- 19.7V
- Voltage - Clamping (Max) @ Ipp:
- 36V
- Current - Peak Pulse (10/1000µs):
- 3A (8/20µs)
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- HDMI, USB
- Capacitance @ Frequency:
- 0.5pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- X1-DFN1006-2
D18V0X1B2LP-7B FAQ
1.How can I place an order for D18V0X1B2LP-7B through Aetrix?
Please submit a Request for Quotation (RFQ) for D18V0X1B2LP-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 D18V0X1B2LP-7B reliable?
The price and inventory of D18V0X1B2LP-7B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for D18V0X1B2LP-7B is usually 5 days.
3.What payment methods are accepted for D18V0X1B2LP-7B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for D18V0X1B2LP-7B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for D18V0X1B2LP-7B?
D18V0X1B2LP-7B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your D18V0X1B2LP-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 D18V0X1B2LP-7B?
For technical support, including D18V0X1B2LP-7B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your D18V0X1B2LP-7B requirements.
6.How does Aetrix verify that D18V0X1B2LP-7B is sourced from the original manufacturer or authorized distributors?
All D18V0X1B2LP-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 D18V0X1B2LP-7B meets industry standards.
7.What is the process for return or replacement of D18V0X1B2LP-7B?
All D18V0X1B2LP-7B units undergo pre-shipment inspection (PSI). If there is an issue with D18V0X1B2LP-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 D18V0X1B2LP-7B part is unused and in its original packaging.
Return procedure for D18V0X1B2LP-7B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
D18V0X1B2LP-7B Tags
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Diodes Incorporated
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