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Diodes Incorporated DESD3V3Z1BCSFQ-7
- Part No.:
- DESD3V3Z1BCSFQ-7
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- 0201 (0603 Metric)
- Datasheet:
-
DESD3V3Z1BCSFQ-7.pdf
- Description:
- GENERAL PROTECTION PP X2-DSN0603
- Quantity:
- Payment:
- Shipping:
Inventory:8,295
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Product details
Overview
DESD3V3Z1BCSFQ-7 from Diodes Incorporated is a bidirectional TVS diode designed for ESD protection of high-speed data lines. It features 3.3V reverse standoff voltage, ±8kV IEC 61000-4-2 contact/air ESD rating, 0.17pF typical input capacitance, 3A peak pulse current, and is qualified to AEC-Q101 for automotive use in USB3.1 and Thunderbolt 3 interfaces.
For engineers reviewing the DESD3V3Z1BCSFQ-7 datasheet, DESD3V3Z1BCSFQ-7 pinout, DESD3V3Z1BCSFQ-7 application, or DESD3V3Z1BCSFQ-7 equivalent, key selection criteria include low-capacitance transient suppression, automotive-grade reliability, I/O line clamping performance at 3A/4.5V, and compatibility with ultra-high-speed serial interfaces requiring sub-0.2pF loading.
Technical Context
This TVS diode operates as a low-capacitance, bidirectional clamping device placed directly across differential or single-ended signal lines to shunt ESD transients to ground. Its 0.17pF CIN minimizes signal integrity impact on 5–10 GHz links, while its 4.5V clamping voltage at 3A ensures logic-level-safe voltage limiting during IEC 61000-4-2 events.
The X2-DSN0603-2 chip-scale package integrates NiAu bump terminals for fine-pitch SMT assembly and exposes electrically active silicon sidewalls-requiring controlled solder paste volume and reflow profile to prevent shorts. Its 500°C/W junction-to-ambient thermal resistance assumes FR-4 PCB mounting per Diodes' recommended pad layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage | 3.3 V - Maximum continuous operating voltage before conduction begins; sets upper limit for signal swing in protected interface |
| Clamping Voltage (IPP = 3A) | 4.5 V - Peak voltage seen by downstream IC during 8/20μs surge; ensures safe margin below 5V logic thresholds |
| Input Capacitance (VR = 0V) | 0.17 pF - Minimal parasitic loading on high-speed lines; preserves signal integrity up to 10 GHz |
| ESD Rating (IEC 61000-4-2) | ±8 kV contact / ±8 kV air - Full compliance with industrial and automotive ESD immunity requirements |
| Peak Pulse Current | 3 A - Sustained surge handling capability under standardized 8/20μs waveform |
| Breakdown Voltage | 5–9 V - Confirmed avalanche onset range at 1mA test current; guarantees robust turn-on margin |
| Differential Dynamic Resistance | 0.4 Ω - Low on-state impedance during clamping; reduces voltage overshoot under fast transients |
Pinout & Package
The DESD3V3Z1BCSFQ-7 uses the X2-DSN0603-2 chip-scale package: 0.60 × 0.30 mm body, 0.14 mm height, NiAu bump terminals, moisture sensitivity level 1, and electrically active silicon sidewalls requiring non-contact soldering process control.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Anode) | Signal Line Input (I/O) | Bidirectional ESD path terminal connected to protected data line (e.g., USB3.1 TX+/RX+) |
| Pin 2 (Cathode) | Ground Reference | Low-inductance return path to system ground plane; must be routed with minimal loop area for effective transient dissipation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including infotainment and ADAS data interfaces with PPAP support and IATF 16949 manufacturing |
| Ultra-low input capacitance | 0.17pF typical enables use on >5 Gbps differential links without measurable eye diagram degradation |
| IEC 61000-4-2 Level 4 compliance | ±8kV contact/air ESD protection meets stringent end-equipment immunity requirements for portable and automotive systems |
| Chip-scale packaging | X2-DSN0603-2 footprint saves board space in dense layouts while maintaining thermal performance via direct die-to-PCB conduction |
Applications
| USB3.1 Interface Protection | Thunderbolt 3 Port Protection |
|---|---|
Use Scenario: Protecting SuperSpeed USB differential pairs (TX/RX) against ESD events during hot-plug insertion in laptops and docking stations. IC Role / Device Role / Timing Role: Bidirectional clamping TVS placed adjacent to connector, shunting transients before they reach USB controller PHY. Use Value: 0.17pF capacitance avoids signal rise-time degradation; 4.5V clamping prevents PHY latch-up during ±8kV contact discharge. | Use Scenario: Safeguarding 40Gbps Thunderbolt 3 lanes (including DisplayPort tunneling) in host devices and peripherals exposed to user-handling ESD. IC Role / Device Role / Timing Role: Low-capacitance transient suppressor mounted at port entry point, referenced to chassis ground with minimized trace inductance. Use Value: Sub-0.2pF loading preserves 10GHz bandwidth; AEC-Q101 qualification supports integration into automotive Thunderbolt-enabled head units. |
| Automotive Infotainment Data Lines | High-Speed Peripheral I/O Protection |
Use Scenario: ESD hardening of MIPI D-PHY or LVDS video/data links between head unit and display or camera modules in vehicles. IC Role / Device Role / Timing Role: Signal-line TVS integrated into PCB routing near connector, leveraging automotive-grade reliability and thermal stability over -40°C to +125°C. Use Value: 500°C/W θJA enables operation without derating in confined enclosures; ±8kV rating satisfies ISO 10605 requirements. | Use Scenario: Protecting PCIe Gen3/Gen4 lanes, HDMI 2.1, or eDP interfaces in industrial PCs and medical imaging equipment. IC Role / Device Role / Timing Role: Point-of-entry transient suppressor placed inline with high-speed traces, using symmetric layout to maintain differential impedance. Use Value: 0.4Ω dynamic resistance ensures rapid clamping response; 3A IPP handles multiple ESD strikes without parametric shift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA6J3.3A-Q | Higher CIN (12pF), larger SMA package (4.5×2.7mm), 600W PPP rating | Targeted at lower-speed power rails or board-level surge, not high-speed data lines | Select only when signal bandwidth <100MHz and board space permits larger footprint |
| TPD4E05U06DQAR | 0.5pF CIN, quad-channel, same X2SON package, 3.6V VRWM | Offers multi-line protection in identical footprint but higher capacitance than DESD3V3Z1BCSFQ-7 | Choose when protecting ≥2 differential pairs simultaneously with acceptable 0.5pF loading |
Compared with SMA6J3.3A-Q and TPD4E05U06DQAR, DESD3V3Z1BCSFQ-7 delivers the lowest possible capacitance (0.17pF) in a 0.6×0.3mm footprint-making it uniquely suited for 5–10 Gbps serial interfaces where even 0.3pF excess loading causes measurable jitter or loss.
Availability
DESD3V3Z1BCSFQ-7 is available at Aetrix Electronics and suitable for USB3.1 interface protection, Thunderbolt 3 port hardening, and automotive infotainment data line ESD suppression requiring stable component supply across production lifecycles.
Supply support for DESD3V3Z1BCSFQ-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, specializing in high-reliability protection, power management, and signal integrity solutions for automotive, industrial, and consumer markets.
The DESD3V3Z1BCSFQ-7 belongs to Diodes' advanced TVS diode product line, engineered specifically for ultra-low-capacitance ESD protection of next-generation high-speed serial interfaces including USB, Thunderbolt, and MIPI.
FAQ
What is the maximum operating temperature range for DESD3V3Z1BCSFQ-7?
The DESD3V3Z1BCSFQ-7 is rated for operation from −65°C to +150°C, with full electrical specifications guaranteed over −40°C to +125°C ambient. This extended range supports deployment in under-hood automotive environments and industrial edge computing applications where thermal cycling exceeds standard commercial limits.
Does DESD3V3Z1BCSFQ-7 require external biasing or control signals?
No. The DESD3V3Z1BCSFQ-7 is a passive, bidirectional TVS diode that operates without any external power, bias, or control circuitry. It functions solely through avalanche breakdown triggered by transient overvoltage exceeding its breakdown threshold (5–9V), making it inherently fail-safe and compatible with all unpowered or hot-swap interfaces.
How does the X2-DSN0603-2 package affect PCB assembly yield?
The X2-DSN0603-2 package uses NiAu bumps and exposes electrically active silicon sidewalls. To avoid shorts, solder paste volume must be tightly controlled (≤100μm stencil thickness), and reflow profiles must prevent flux migration onto sidewalls. Diodes provides validated pad layouts and assembly guidelines to achieve >99.5% first-pass yield in high-volume SMT lines.
Can DESD3V3Z1BCSFQ-7 be used on 12V power rails?
No. With a 3.3V reverse standoff voltage and 5–9V breakdown range, the DESD3V3Z1BCSFQ-7 is unsuitable for 12V rail protection. Applying sustained 12V would cause continuous conduction and thermal failure. It is strictly intended for low-voltage, high-speed signal lines such as USB3.1, Thunderbolt 3, and MIPI D-PHY where operating voltages remain ≤3.6V.
DESD3V3Z1BCSFQ-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- 0201 (0603 Metric)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 3.3V (Max)
- Voltage - Breakdown (Min):
- 5V
- Voltage - Clamping (Max) @ Ipp:
- 4.5V (Typ)
- Current - Peak Pulse (10/1000µs):
- 3A (8/20µs)
- Power - Peak Pulse:
- 25W
- Power Line Protection:
- No
- Applications:
- USB
- Capacitance @ Frequency:
- 0.17pF @ 1MHz
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- X2-DSN0603-2
DESD3V3Z1BCSFQ-7 FAQ
1.How can I place an order for DESD3V3Z1BCSFQ-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DESD3V3Z1BCSFQ-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 DESD3V3Z1BCSFQ-7 reliable?
The price and inventory of DESD3V3Z1BCSFQ-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DESD3V3Z1BCSFQ-7 is usually 5 days.
3.What payment methods are accepted for DESD3V3Z1BCSFQ-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DESD3V3Z1BCSFQ-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DESD3V3Z1BCSFQ-7?
DESD3V3Z1BCSFQ-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DESD3V3Z1BCSFQ-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 DESD3V3Z1BCSFQ-7?
For technical support, including DESD3V3Z1BCSFQ-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DESD3V3Z1BCSFQ-7 requirements.
6.How does Aetrix verify that DESD3V3Z1BCSFQ-7 is sourced from the original manufacturer or authorized distributors?
All DESD3V3Z1BCSFQ-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 DESD3V3Z1BCSFQ-7 meets industry standards.
7.What is the process for return or replacement of DESD3V3Z1BCSFQ-7?
All DESD3V3Z1BCSFQ-7 units undergo pre-shipment inspection (PSI). If there is an issue with DESD3V3Z1BCSFQ-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 DESD3V3Z1BCSFQ-7 part is unused and in its original packaging.
Return procedure for DESD3V3Z1BCSFQ-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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