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Diodes Incorporated DESD30VF1BLQ-7B
- Part No.:
- DESD30VF1BLQ-7B
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- 0402 (1006 Metric)
- Datasheet:
-
DESD30VF1BLQ-7B.pdf
- Description:
- DATALINE PROTECTION PP X1-DFN100
- Quantity:
- Payment:
- Shipping:
Inventory:9,656
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Product details
Overview
DESD30VF1BLQ-7B from Diodes Incorporated is a bidirectional ultra-low-capacitance TVS diode designed for ESD protection of high-speed signal lines, with 31V minimum breakdown voltage, 0.3pF typical capacitance, ±12kV IEC 61000-4-2 contact/air ESD rating, and AEC-Q101 qualification for automotive use.
For engineers reviewing the DESD30VF1BLQ-7B datasheet, DESD30VF1BLQ-7B pinout, DESD30VF1BLQ-7B application, or DESD30VF1BLQ-7B equivalent, key selection criteria include clamping voltage under 1A (13V), thermal resistance (500°C/W), low-profile DFN package footprint, and compliance with ISO 10605 and Open Alliance ESD requirements.
Technical Context
This TVS diode operates in bidirectional avalanche mode to clamp transient overvoltages across sensitive I/O lines without DC bias dependency. Its 0.3pF capacitance enables minimal signal distortion on NFC and USB 2.0 interfaces, while the 13V clamping voltage at 1A ensures robust protection without compromising data integrity.
The device uses a planar silicon junction structure optimized for fast response (<1ns) to ESD events and stable performance across -55°C to +150°C. Its X1-DFN1006-2 package integrates NiPdAu-plated terminals for reliable solderability and meets J-STD-020 Level 1 moisture sensitivity requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage (VBR) | 31V min - Ensures reliable conduction only above normal signal swing, avoiding false triggering on 3.3V or 5V logic lines. |
| Clamping Voltage (VCL) | 13V max at 1A - Limits transient voltage seen by protected IC to safe levels during 8/20µs surges. |
| Capacitance (CT) | 0.3pF typ at 0V - Preserves signal integrity on >100MHz NFC antennas and high-speed USB 2.0 data lanes. |
| ESD Rating | ±12kV contact & air per IEC 61000-4-2 - Meets industrial and automotive ESD immunity requirements without external filtering. |
| Thermal Resistance (RθJA) | 500°C/W - Enables operation up to +150°C ambient when mounted on standard 2oz FR-4 PCB pad layout. |
| Power Dissipation (PD) | 250mW - Supports continuous operation in compact portable electronics with limited thermal mass. |
Pinout & Package
Package: X1-DFN1006-2 - ultra-compact 1.08mm × 0.68mm footprint, 0.53mm max height, lead-free and halogen-free "Green" molding compound (UL 94V-0).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode (Channel 1) | Connected to protected I/O line; forms one side of bidirectional clamping path with Pin 2. |
| Pin 2 | Cathode (Channel 1) | Connected to system ground (VSS); completes ESD current path during positive or negative transients. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional ESD Clamping | Protects AC-coupled or differential signal lines (e.g., NFC antenna, USB D+/D−) without polarity constraints. |
| AEC-Q101 Qualified | Validated for automotive infotainment and ADAS sensor interfaces requiring PPAP documentation and IATF 16949 manufacturing control. |
| 0.3pF Capacitance | Minimizes insertion loss and phase shift on 13.56MHz NFC signals and 480Mbps USB 2.0 data streams. |
| Low Profile (0.53mm max) | Enables placement adjacent to RF components and under narrow board keep-outs in smartphones and wearables. |
Applications
| NFC Antenna Protection | USB 2.0 Data Line Protection |
|---|---|
Use Scenario: Protecting 13.56MHz loop antenna traces in contactless payment modules and smart cards from ESD discharge during user handling. IC Role / Device Role / Timing Role: Bidirectional transient voltage suppressor placed directly at antenna feed point to shunt ESD energy to ground before reaching NFC transceiver IC. Use Value: 0.3pF capacitance avoids detuning antenna resonance, maintaining >95% coupling efficiency and read range within ISO/IEC 14443 limits. | Use Scenario: Safeguarding D+ and D− lines in portable USB peripherals against ESD events during cable insertion or hot-plug operations. IC Role / Device Role / Timing Role: Low-capacitance TVS placed immediately before USB PHY to prevent latch-up or damage to internal ESD structures. Use Value: 13V clamping voltage ensures signal eye diagram remains intact at 480Mbps, meeting USB-IF compliance test margins. |
| Automotive Infotainment Touch Interface | High-Speed Sensor Data Lines |
Use Scenario: Shielding capacitive touch controller I²C or SPI lines in vehicle center consoles exposed to human-body ESD in dry cabin environments. IC Role / Device Role / Timing Role: AEC-Q101-qualified TVS deployed on thin-film sensor flex cables to meet OEM EMC validation requirements. Use Value: ±12kV IEC 61000-4-2 rating satisfies Ford CS-2009 and GMW3172 Level IV immunity thresholds without derating. | Use Scenario: Protecting LVDS or MIPI CSI-2 camera sensor outputs in ADAS rearview systems from transient coupling via ribbon cables. IC Role / Device Role / Timing Role: Signal-line TVS integrated into camera module PCB to suppress ESD-induced bit errors during vehicle door closure or static discharge. Use Value: 500°C/W thermal resistance allows sustained operation at 105°C ambient under engine bay thermal cycling profiles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional ultra-low-capacitance TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA6J33A-Q | Unidirectional, 33V VRWM, 1.5pF CT, 300W peak power | Requires external polarity management; higher capacitance limits use on >50MHz signals | Select only if unidirectional protection suffices and board space permits larger SMA package. |
| TPD2E001DRYR | Bidirectional, 5V VRWM, 1.5pF CT, dual-channel in same footprint | Limited to low-voltage I/O (≤5.5V); insufficient for 30V-rated signal rails | Prefer for dual-line 3.3V interfaces but not suitable for 30V working voltage or NFC antenna protection. |
Compared with SMA6J33A-Q and TPD2E001DRYR, DESD30VF1BLQ-7B uniquely combines 30V working voltage, bidirectional operation, 0.3pF capacitance, and AEC-Q101 qualification-making it the only option validated for automotive NFC and high-speed analog sensor interfaces requiring sub-0.5pF loading.
Availability
DESD30VF1BLQ-7B is available at Aetrix Electronics and suitable for NFC antenna protection, USB 2.0 data line safeguarding, and automotive infotainment touch interface designs requiring stable component supply and long-term lifecycle assurance.
Supply support for DESD30VF1BLQ-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.
The DESD30VF1BLQ belongs to Diodes' ultra-low-capacitance TVS portfolio, engineered specifically for ESD-hardened high-frequency interfaces where signal fidelity and compact packaging are critical design constraints.
FAQ
What is the maximum operating temperature for DESD30VF1BLQ-7B?
The device supports continuous operation from -55°C to +150°C junction temperature. Its 500°C/W thermal resistance and 250mW power dissipation allow reliable function at +105°C ambient on standard FR-4 PCB layouts, making it suitable for under-hood automotive modules and thermally constrained handheld devices.
Does DESD30VF1BLQ-7B require external biasing or control circuitry?
No. The device is a passive bidirectional TVS diode that operates without any external power, bias, or control signals. It functions solely through avalanche breakdown when transient voltage exceeds its 31V minimum breakdown threshold, automatically returning to high-impedance state once the surge subsides.
How does the 0.3pF capacitance impact NFC antenna performance?
The 0.3pF typical capacitance introduces negligible reactance (<1Ω at 13.56MHz), preventing detuning of the antenna's resonant frequency and preserving read range and coupling efficiency. This enables direct placement at the antenna feed point without requiring impedance-matching recalibration or additional compensation components.
Is DESD30VF1BLQ-7B compatible with lead-free reflow processes?
Yes. The device features NiPdAu-plated copper leadframe terminals and is qualified for standard lead-free reflow profiles per JEDEC J-STD-020, including peak temperatures up to 260°C. Its moisture sensitivity level is rated at Level 1, eliminating bake requirements prior to assembly.
DESD30VF1BLQ-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:
- -
- Capacitance @ Frequency:
- 0.3pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- X1-DFN1006-2
DESD30VF1BLQ-7B FAQ
1.How can I place an order for DESD30VF1BLQ-7B through Aetrix?
Please submit a Request for Quotation (RFQ) for DESD30VF1BLQ-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 DESD30VF1BLQ-7B reliable?
The price and inventory of DESD30VF1BLQ-7B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DESD30VF1BLQ-7B is usually 5 days.
3.What payment methods are accepted for DESD30VF1BLQ-7B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DESD30VF1BLQ-7B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DESD30VF1BLQ-7B?
DESD30VF1BLQ-7B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DESD30VF1BLQ-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 DESD30VF1BLQ-7B?
For technical support, including DESD30VF1BLQ-7B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DESD30VF1BLQ-7B requirements.
6.How does Aetrix verify that DESD30VF1BLQ-7B is sourced from the original manufacturer or authorized distributors?
All DESD30VF1BLQ-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 DESD30VF1BLQ-7B meets industry standards.
7.What is the process for return or replacement of DESD30VF1BLQ-7B?
All DESD30VF1BLQ-7B units undergo pre-shipment inspection (PSI). If there is an issue with DESD30VF1BLQ-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 DESD30VF1BLQ-7B part is unused and in its original packaging.
Return procedure for DESD30VF1BLQ-7B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DESD30VF1BLQ-7B Tags
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Diodes Incorporated
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Diodes Incorporated
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