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Diodes Incorporated DESD12V0S1BLQ-7B
- Part No.:
- DESD12V0S1BLQ-7B
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- 0402 (1006 Metric)
- Datasheet:
-
DESD12V0S1BLQ-7B.pdf
- Description:
- DATALINE PROTECTION PP X1-DFN100
- Quantity:
- Payment:
- Shipping:
Inventory:9,446
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Product details
Overview
DESD12V0S1BLQ-7B from Diodes Incorporated is a bidirectional TVS diode designed for ESD protection of high-speed data lines in portable electronics. It features a 12 V reverse standoff voltage, ±30 kV IEC 61000-4-2 contact/air ESD rating, 20 pF typical junction capacitance, and an X1-DFN1006-2 (1.08 × 0.68 mm) package-enabling robust protection in space-constrained interfaces such as USB 2.0 and HDMI signal paths.
For engineers reviewing the DESD12V0S1BLQ-7B datasheet, DESD12V0S1BLQ-7B pinout, DESD12V0S1BLQ-7B application, or DESD12V0S1BLQ-7B equivalent, key selection criteria include low clamping voltage (33.5 V at 9 A), ultra-low capacitance for signal integrity, AEC-Q101 qualification for automotive infotainment, and compatibility with automated SMT assembly on fine-pitch PCBs.
Technical Context
This TVS diode operates as a voltage-clamped transient suppressor across a single bidirectional channel. Its silicon avalanche structure triggers at ≥15 V breakdown (VBR), clamps transients to ≤33.5 V under 9 A 8/20 µs pulses, and maintains ≤100 nA leakage at 12 V, ensuring minimal loading on sensitive analog or high-speed digital nodes.
Engineered for IEC 61000-4-2 Level 4 compliance, it delivers symmetrical ±30 kV air and contact ESD immunity without requiring external biasing. The DFN1006 footprint supports thermal dissipation up to 250 mW on standard FR-4 layouts while maintaining <0.53 mm profile height for thin mobile enclosures.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 12 V - Maximum continuous reverse operating voltage before leakage exceeds 100 nA; sets upper limit for protected line DC bias. |
| VBR (Min) | 15 V - Minimum breakdown voltage at 5 mA; ensures reliable turn-on above normal signal swing in 12 V systems. |
| VCL @ 9 A | 33.5 V - Clamping voltage during 8/20 µs surge; limits peak stress on downstream ICs like USB PHYs or audio codecs. |
| CT (Typ) | 20 pF - Junction capacitance at 0 V, 1 MHz; preserves signal integrity on 480 Mbps USB 2.0 or 720p video lines. |
| IPP (Max) | 8.5 A - Peak pulse current handling per IEC 61000-4-5; supports robust surge margin beyond ESD-only events. |
| ESD Rating | ±30 kV (Contact/Air) - Full IEC 61000-4-2 Level 4 compliance; eliminates need for secondary ESD stages in handheld designs. |
| AEC-Q101 | Qualified - Validated for automotive infotainment and telematics modules requiring change-controlled manufacturing and PPAP support. |
Pinout & Package
Package: X1-DFN1006-2 - 2-terminal, bottom-exposed thermal pad, 1.08 mm × 0.68 mm footprint, 0.53 mm max height, NiPdAu-plated terminals, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode | Bidirectional conduction path; connects to protected signal line (e.g., USB D+); symmetric with Pin 2. |
| 2 | Cathode | Bidirectional conduction path; connects to protected signal line (e.g., USB D−); electrically identical to Pin 1 in this TVS configuration. |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile DFN package | 0.53 mm max height enables integration into <8 mm thick smartphones and wearables without mechanical interference. |
| IEC 61000-4-2 ±30 kV protection | Eliminates field failures from repeated static discharge during user handling of exposed ports and buttons. |
| 20 pF typical capacitance | Permits use on 480 Mbps USB 2.0 differential pairs without measurable eye diagram degradation or jitter increase. |
| AEC-Q101 qualification | Supports deployment in automotive center displays and rear-seat entertainment systems with full PPAP documentation. |
| Halogen- and antimony-free "Green" construction | Meets EU RoHS 3 (2015/863/EU) and automotive ELV Directive requirements for sustainable supply chain compliance. |
Applications
| USB 2.0 Interface Protection | HDMI Signal Line Protection |
|---|---|
Use Scenario: Protecting D+ and D− lines in smartphone USB OTG circuits against user-induced ESD during cable insertion. IC Role / Device Role / Timing Role: Bidirectional transient voltage suppressor placed directly at connector, clamping fast-rising ESD pulses before they reach the USB controller. Use Value: Prevents latch-up or gate oxide damage in USB PHYs while maintaining <1% signal attenuation at 480 MHz due to 20 pF capacitance. |
Use Scenario: Shielding TMDS clock and data channels in portable projectors from ESD during HDMI cable hot-plug events. IC Role / Device Role / Timing Role: Low-capacitance TVS placed adjacent to HDMI receptacle to suppress ±30 kV discharges without distorting 165 MHz pixel clocks. Use Value: Enables HDMI 1.4 compliance in compact form factors where board space prohibits larger SO-8 or SOT-23 TVS solutions. |
| Automotive Infotainment Display | Digital Camera Sensor Interface |
Use Scenario: Safeguarding LVDS or FPD-Link II video bus lines between head unit MCU and TFT display in vehicles. IC Role / Device Role / Timing Role: AEC-Q101-qualified TVS deployed on each differential pair to meet ISO 10605 and OEM-specific ESD test plans. Use Value: Guarantees zero field returns from display flicker or black screen caused by ESD-induced data corruption in harsh automotive environments. |
Use Scenario: Protecting MIPI CSI-2 data lanes between image sensor and processor in compact action cameras exposed to frequent handling. IC Role / Device Role / Timing Role: Ultra-small TVS mounted within 2 mm of sensor connector to minimize stub inductance and preserve 1 GHz bandwidth. Use Value: Maintains clean image capture by preventing ESD-induced pixel noise or frame drop without adding trace-length mismatch. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional low-capacitance TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ12A | DO-214AC package (4.5 × 2.7 mm), 100 pF capacitance, 12 V VRWM, 300 W PPP | Higher capacitance limits use to DC/low-speed lines only; unsuitable for USB/HDMI | Select when cost priority outweighs board space and signal integrity requirements. |
| TPD2E001DRYR | 2-channel, 12 V, 12 pF, DRY (X2SON-6) package, ±8 kV IEC 61000-4-2 | Lower ESD rating restricts use to non-handheld consumer devices; dual-channel reduces component count | Choose for multi-line protection where ±8 kV suffices and layout allows 1.0 × 1.0 mm footprint. |
Compared with SMAJ12A and TPD2E001DRYR, DESD12V0S1BLQ-7B uniquely balances ultra-low capacitance (20 pF), full ±30 kV ESD immunity, and AEC-Q101 qualification in the smallest possible footprint-making it optimal for next-generation portable and automotive high-speed interfaces.
Availability
DESD12V0S1BLQ-7B is available at Aetrix Electronics and suitable for USB 2.0 interface protection, automotive infotainment displays, and digital camera sensor interfaces requiring stable component supply across high-volume production cycles.
Supply support for DESD12V0S1BLQ-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, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
This device belongs to Diodes' DESD series of ultra-low-capacitance TVS diodes, engineered specifically for ESD protection of high-speed serial interfaces in space-constrained portable and automotive electronics.
FAQ
What is the maximum clamping voltage of DESD12V0S1BLQ-7B under a 9 A 8/20 µs surge?
The maximum clamping voltage is 33.5 V, measured at 9 A peak pulse current with an 8/20 µs waveform. This value is specified in the Electrical Characteristics table of DS43644 Rev. 1–2 and ensures downstream ICs experience limited overvoltage stress during worst-case transients.
Is DESD12V0S1BLQ-7B suitable for protecting USB 3.0 SuperSpeed lines?
No-it is not recommended for USB 3.0 (5 Gbps) due to its 20 pF typical capacitance, which introduces excessive insertion loss and return loss at 2.5 GHz. It is validated for USB 2.0 (480 Mbps) and other sub-1 GHz interfaces like HDMI 1.4 TMDS and MIPI CSI-2 Gen 1.
Does the X1-DFN1006-2 package include a thermal pad?
No-the X1-DFN1006-2 package has no exposed thermal pad. Thermal dissipation relies on copper traces connected to Pins 1 and 2; the datasheet specifies 500 °C/W junction-to-ambient resistance using a standard 2 oz FR-4 PCB layout with defined pad dimensions.
How does AEC-Q101 qualification impact the manufacturing process for DESD12V0S1BLQ-7B?
AEC-Q101 qualification requires 100% wafer-level and final-test screening per automotive standards, IATF 16949-certified production facilities, PPAP documentation, and controlled change management-including notification and requalification for any process or material modifications affecting reliability.
DESD12V0S1BLQ-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):
- 12V (Max)
- Voltage - Breakdown (Min):
- 15V
- Voltage - Clamping (Max) @ Ipp:
- 33.5V
- Current - Peak Pulse (10/1000µs):
- 8.5A (8/20µs)
- Power - Peak Pulse:
- 300W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 20pF @ 1MHz
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- X1-DFN1006-2
DESD12V0S1BLQ-7B FAQ
1.How can I place an order for DESD12V0S1BLQ-7B through Aetrix?
Please submit a Request for Quotation (RFQ) for DESD12V0S1BLQ-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 DESD12V0S1BLQ-7B reliable?
The price and inventory of DESD12V0S1BLQ-7B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DESD12V0S1BLQ-7B is usually 5 days.
3.What payment methods are accepted for DESD12V0S1BLQ-7B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DESD12V0S1BLQ-7B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DESD12V0S1BLQ-7B?
DESD12V0S1BLQ-7B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DESD12V0S1BLQ-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 DESD12V0S1BLQ-7B?
For technical support, including DESD12V0S1BLQ-7B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DESD12V0S1BLQ-7B requirements.
6.How does Aetrix verify that DESD12V0S1BLQ-7B is sourced from the original manufacturer or authorized distributors?
All DESD12V0S1BLQ-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 DESD12V0S1BLQ-7B meets industry standards.
7.What is the process for return or replacement of DESD12V0S1BLQ-7B?
All DESD12V0S1BLQ-7B units undergo pre-shipment inspection (PSI). If there is an issue with DESD12V0S1BLQ-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 DESD12V0S1BLQ-7B part is unused and in its original packaging.
Return procedure for DESD12V0S1BLQ-7B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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