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Diodes Incorporated DESD30VF1BL-7B
- Part No.:
- DESD30VF1BL-7B
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- 0402 (1006 Metric)
- Datasheet:
-
DESD30VF1BL-7B.pdf
- Description:
- DATALINE PROTECTION PP X1-DFN100
- Quantity:
- Payment:
- Shipping:
Inventory:8,485
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Product details
Overview
DESD30VF1BL-7B from Diodes Incorporated is a bidirectional TVS diode designed for ultra-low-capacitance ESD protection of high-speed data lines. It features a 30V reverse working voltage, 31V minimum breakdown voltage, 0.3pF typical junction capacitance, ±12kV IEC 61000-4-2 contact/air discharge rating, and X1-DFN1006-2 (1.08 × 0.68 mm) package-ideal for USB 2.0, HDMI, and audio jack interfaces in smartphones.
For engineers reviewing the DESD30VF1BL-7B datasheet, DESD30VF1BL-7B pinout, DESD30VF1BL-7B application, or DESD30VF1BL-7B equivalent, key selection criteria include clamping voltage under 1A surge (13V), dynamic resistance (0.7Ω), thermal resistance (500°C/W), and compatibility with space-constrained portable PCB layouts requiring sub-0.4pF signal-line loading.
Technical Context
This TVS operates as a voltage-clamped transient suppressor across bidirectional signal paths. Its low 0.3pF capacitance ensures minimal signal integrity degradation on 480Mbps USB 2.0 lines, while its 13V clamping voltage at 1A (8/20μs) limits downstream IC stress during ESD events.
The device uses silicon avalanche structure with optimized junction geometry to achieve simultaneous low capacitance and high ESD robustness. It is rated for continuous power dissipation of 250mW at 25°C ambient and derates linearly above 25°C per the published curve, with junction-to-ambient thermal resistance of 500°C/W on standard FR-4 layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 30V - Maximum continuous reverse operating voltage before leakage exceeds 0.1nA; sets upper limit for protected line DC bias. |
| VBR (Min) | 31V - Minimum voltage at which device enters avalanche conduction at 1mA; defines ESD trigger threshold. |
| VCL2 (1A) | 13V - Clamped voltage during 1A, 8/20μs surge; determines peak stress on downstream ICs. |
| CT (Typ) | 0.3pF - Junction capacitance at 0V, 1MHz; enables use on >480Mbps differential data lines without signal distortion. |
| ESD Rating | ±12kV - Complies with IEC 61000-4-2 Level 4 for both air and contact discharge; qualifies for end-equipment certification. |
| PD (25°C) | 250mW - Steady-state power dissipation limit; requires thermal derating above 25°C ambient per published curve. |
| RθJA | 500°C/W - Thermal resistance from junction to ambient on standard FR-4 pad layout; informs board-level thermal design. |
Pinout & Package
Package: X1-DFN1006-2 - ultra-compact 2-terminal surface-mount package measuring 1.08 mm × 0.68 mm × 0.53 mm max height, with NiPdAu-plated copper leadframe and halogen-free molding compound (UL 94V-0).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode (for unidirectional reference) | Bidirectional operation means either terminal serves as cathode/anode depending on polarity of transient; no polarity marking required in circuit. |
| Terminal 2 | Cathode (for unidirectional reference) | Both terminals are electrically symmetric; device functions identically regardless of orientation on PCB. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low capacitance | 0.3pF typical enables ESD protection on USB 2.0, MIPI D-PHY, and audio codec interfaces without signal rise-time degradation. |
| IEC 61000-4-2 Level 4 compliance | ±12kV contact/air rating meets highest system-level ESD immunity requirement for consumer handheld devices. |
| Low-profile footprint | 1.08 × 0.68 mm area and 0.53 mm max height allow placement adjacent to connectors and RF sections in slim mobile designs. |
| Lead-free & green construction | Fully RoHS 3 compliant with <900ppm Br/Cl and <1000ppm Sb; supports environmental compliance for global consumer electronics markets. |
Applications
| USB 2.0 Data Lines | HDMI Hot-Plug Detection |
|---|---|
Use Scenario: Protecting D+ and D− lines in smartphone USB ports against repeated ESD strikes during cable insertion/removal. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at connector, shunting transients before they reach USB transceiver PHY. Use Value: 0.3pF capacitance avoids signal integrity loss at 480Mbps; 13V clamping prevents PHY latch-up or damage during ±12kV contact discharge. | Use Scenario: Safeguarding HDMI HPD (Hot-Plug Detect) and CEC lines in tablets and docking stations exposed to user-hand ESD. IC Role / Device Role / Timing Role: Standalone ESD suppressor on low-current control lines, operating independently of main HDMI signal path. Use Value: Sub-0.4pF loading preserves HPD logic edge timing; ±12kV rating ensures reliable detection after repeated plugging cycles. |
| Smartphone Audio Jacks | Industrial Sensor Interface |
Use Scenario: Shielding microphone and headset detect pins in 3.5mm TRRS jacks from ESD during accessory insertion. IC Role / Device Role / Timing Role: Low-capacitance shunt protector on analog audio sense lines, placed immediately at jack PCB footprint. Use Value: 0.3pF capacitance prevents audible pop/click artifacts; 31V VBR avoids false triggering from 3.3V/5V bias rails. | Use Scenario: Protecting RS-485 or CAN FD transceiver I/O pins in compact industrial gateways subject to field ESD. IC Role / Device Role / Timing Role: Secondary-level ESD guard on communication interface pins where primary protection resides upstream. Use Value: 13V clamping voltage aligns with transceiver absolute maximum ratings; small DFN footprint fits dense gateway PCB layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ30A | DO-214AC package (4.5 × 2.7 mm), 33V VBR, 30pF CT, 30A IPP | Higher capacitance and larger footprint; suited for power rail or lower-speed signal protection only | Select when higher surge current handling (>1A) is required and board space allows DO-214AC. |
| SP1003-01UTG | SOD-323 package (1.7 × 1.25 mm), 24V VBR, 0.35pF CT, ±15kV ESD rating | Lower VRWM and tighter ESD margin; better for 1.8–3.3V logic but less margin on 5V lines | Choose for 3.3V systems needing enhanced ESD margin, accepting reduced DC voltage headroom. |
Compared with SMAJ30A and SP1003-01UTG, DESD30VF1BL-7B uniquely balances 30V VRWM, 0.3pF capacitance, and ±12kV ESD rating in a 1.08 × 0.68 mm footprint-making it optimal for high-speed, space-constrained 5V interfaces where signal fidelity and compactness are co-critical.
Availability
DESD30VF1BL-7B is available at Aetrix Electronics and suitable for cellular handsets, portable electronics, and computers and peripherals requiring stable component supply and guaranteed long-term sourcing.
Supply support for DESD30VF1BL-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 consumer, industrial, and automotive markets.
This part belongs to Diodes' DESD ultra-low-capacitance TVS family, engineered specifically for ESD protection of high-speed digital interfaces in portable electronics without compromising signal integrity.
FAQ
What is the maximum clamping voltage of DESD30VF1BL-7B under a 1A ESD surge?
The device clamps to a maximum of 13V under a 1A, 8/20μs transient pulse, as specified in the Electrical Characteristics table. This value ensures downstream ICs with 13.5V absolute maximum ratings remain within safe operating limits during standardized IEC 61000-4-2 events.
Can DESD30VF1BL-7B be used on 5V USB OTG lines?
Yes-it has a 30V reverse working voltage and 31V minimum breakdown voltage, providing sufficient margin above 5V nominal operation. Its 0.3pF capacitance avoids signal distortion on full-speed USB 2.0 (480Mbps) lines, and its bidirectional nature eliminates polarity concerns during OTG role switching.
Is the X1-DFN1006-2 package compatible with standard reflow profiles?
Yes-the device is qualified for moisture sensitivity level 1 per J-STD-020 and supports standard Pb-free reflow profiles (peak temperature ≤260°C). Its NiPdAu-plated terminals ensure reliable solderability per MIL-STD-202, Method 208, and the 0.53mm max height accommodates automated optical inspection.
Does DESD30VF1BL-7B meet automotive qualification standards?
No-it is not AEC-Q101 qualified. While Diodes offers automotive-grade variants in the same family, this specific part (DESD30VF1BL-7B) is intended for commercial portable electronics. For automotive applications, consult Diodes' AEC-Q101-certified equivalents such as DESD30VF1BQ-7B.
DESD30VF1BL-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):
- 30V (Max)
- Voltage - Breakdown (Min):
- 31V
- Voltage - Clamping (Max) @ Ipp:
- 13V (Typ)
- Current - Peak Pulse (10/1000µs):
- 1A (8/20µs)
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 0.3pF @ 1MHz
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- X1-DFN1006-2
DESD30VF1BL-7B FAQ
1.How can I place an order for DESD30VF1BL-7B through Aetrix?
Please submit a Request for Quotation (RFQ) for DESD30VF1BL-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 DESD30VF1BL-7B reliable?
The price and inventory of DESD30VF1BL-7B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DESD30VF1BL-7B is usually 5 days.
3.What payment methods are accepted for DESD30VF1BL-7B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DESD30VF1BL-7B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DESD30VF1BL-7B?
DESD30VF1BL-7B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DESD30VF1BL-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 DESD30VF1BL-7B?
For technical support, including DESD30VF1BL-7B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DESD30VF1BL-7B requirements.
6.How does Aetrix verify that DESD30VF1BL-7B is sourced from the original manufacturer or authorized distributors?
All DESD30VF1BL-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 DESD30VF1BL-7B meets industry standards.
7.What is the process for return or replacement of DESD30VF1BL-7B?
All DESD30VF1BL-7B units undergo pre-shipment inspection (PSI). If there is an issue with DESD30VF1BL-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 DESD30VF1BL-7B part is unused and in its original packaging.
Return procedure for DESD30VF1BL-7B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DESD30VF1BL-7B Tags
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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