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Diodes Incorporated DESD5V0U1BLQ-7B
- Part No.:
- DESD5V0U1BLQ-7B
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- 0402 (1006 Metric)
- Datasheet:
-
DESD5V0U1BLQ-7B.pdf
- Description:
- DATALINE PROTECTION PP X1-DFN100
- Quantity:
- Payment:
- Shipping:
Inventory:7,951
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Product details
Overview
DESD5V0U1BLQ-7B from Diodes Incorporated is a low-capacitance bidirectional TVS diode designed for ESD protection of high-speed data lines. It delivers ±10 kV contact ESD immunity per IEC 61000-4-2, clamps at 7.2 V under 3.0 A 8/20 µs surge, and exhibits only 2.9 pF input capacitance at 0 V bias-enabling use in USB 2.0, HDMI, and cellular antenna interfaces.
For engineers reviewing the DESD5V0U1BLQ-7B datasheet, DESD5V0U1BLQ-7B pinout, DESD5V0U1BLQ-7B application, or DESD5V0U1BLQ-7B equivalent, key selection criteria include clamping voltage under IEC 61000-4-5 surge, channel leakage (<100 nA at 5 V), differential resistance (≤100 Ω), reverse standoff voltage (5 V), and DFN1006-2 footprint compatibility with high-density portable PCB layouts.
Technical Context
This TVS diode operates as a bidirectional transient suppressor across a single I/O line and ground, leveraging avalanche breakdown to divert ESD energy before sensitive transceivers are damaged. Its 5.5–9.5 V breakdown range (at 5 mA) and 7.2 V clamping at 3.0 A ensure robust protection without false triggering during normal signal swing.
The device uses a planar silicon junction structure in a lead-free X1-DFN1006-2 package with NiPdAu-plated terminals, optimized for minimal parasitic capacitance and fast response (<1 ns). Its 2.9 pF capacitance at 0 V and 1.9 pF at 5 V bias enables preservation of signal integrity on 480 Mbps USB 2.0 channels and RF front-end paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage | 5 V - Maximum continuous operating voltage before conduction begins; sets upper limit for signal rail compatibility. |
| Clamping Voltage | 7.2 V @ 3.0 A - Peak voltage seen by protected IC during 8/20 µs surge; determines safe margin for downstream logic thresholds. |
| ESD Contact Rating | ±10 kV - Withstands direct human-body-model discharge per IEC 61000-4-2; qualifies for handheld and wearable end-equipment certification. |
| Channel Capacitance | 2.9 pF @ 0 V - Low enough to avoid signal attenuation or timing skew on USB 2.0 or MIPI D-PHY lanes. |
| Breakdown Voltage | 5.5–9.5 V @ 5 mA - Confirms sharp, repeatable avalanche onset; ensures consistent protection behavior across production lots. |
| Leakage Current | 5–100 nA @ 5 V - Negligible DC loading on high-impedance analog or RF inputs; avoids baseline drift or bias shift. |
| Differential Resistance | ≤100 Ω @ 1 mA - Low dynamic impedance improves clamping consistency during fast transients and reduces thermal stress. |
Pinout & Package
Package: X1-DFN1006-2 (1.0 mm × 0.6 mm × 0.3 mm), surface-mount, cathode-band marked on top side, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode (cathode band side) | Connected to I/O line; forms one terminal of bidirectional avalanche junction. |
| Pin 2 | Cathode | Connected to system ground; provides return path for ESD current; polarity marking aligns with standard DFN orientation. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional ESD suppression | Protects AC-coupled or differential lines (e.g., USB D+/D−) without polarity constraints. |
| Low 2.9 pF input capacitance | Preserves signal rise/fall times and eye diagram integrity on 480 Mbps data links. |
| ±10 kV IEC 61000-4-2 contact rating | Meets international ESD immunity requirements for consumer and industrial portable devices. |
| Lead-free, halogen-free "Green" construction | Complies with RoHS 3 (2015/863/EU) and automotive PPAP material declarations. |
| DFN1006-2 footprint | Enables ultra-compact placement adjacent to connectors or IC pads, minimizing trace inductance. |
Applications
| Smartphone Antenna Switching | USB 2.0 Data Lines |
|---|---|
Use Scenario: ESD protection for LTE/5G antenna tuning switches exposed to user handling and board-level assembly. IC Role / Device Role / Timing Role: Bidirectional TVS placed between RF switch control pin and ground to shunt HBM discharges before gate oxide damage. Use Value: 2.9 pF capacitance avoids detuning of sub-6 GHz antenna matching networks; 7.2 V clamping prevents latch-up in GaAs pHEMT drivers. | Use Scenario: Transient suppression on USB 2.0 D+ and D− lines in mobile accessories and docking stations. IC Role / Device Role / Timing Role: Single-channel TVS per data line, mounted within 3 mm of connector to minimize inductive overshoot. Use Value: Clamping at 7.2 V ensures receiver input stays below absolute maximum rating (typically 3.6 V) even during 3 A surge, thanks to low-inductance DFN layout. |
| HDMI Interface Protection | Automotive Infotainment Display Links |
Use Scenario: Guarding TMDS clock and data pairs against ESD events during cable insertion in monitors and projectors. IC Role / Device Role / Timing Role: One DESD5V0U1BLQ-7B per TMDS channel (clock/data), placed at source-side PCB edge. Use Value: 1.9 pF capacitance at 5 V bias minimizes jitter accumulation across 2.25 Gbps links; ±10 kV rating satisfies IEC 61000-4-2 system-level testing. | Use Scenario: Protecting LVDS or FPD-Link III video bus pins in automotive head units and digital instrument clusters. IC Role / Device Role / Timing Role: TVS on each high-speed video lane, qualified to AEC-Q200 Grade 2 (−40°C to +105°C). Use Value: Operating temperature range (−65°C to +150°C) supports under-hood and display module thermal profiles; RoHS 3 compliance meets Tier-1 automotive material requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ5.0A | DO-214AC package; 600 W peak power; 12.5 V clamping @ 24.7 A; 100 pF capacitance | Designed for higher-energy surges (IEC 61000-4-5 Level 4); unsuitable for >100 Mbps data lines due to high capacitance | Select when protecting power rails or low-speed GPIO-not signal lines requiring <5 pF. |
| TPD2E001DRYR | 2-channel, 12 pF @ 0 V, ±8 kV ESD rating, same DFN1006-2 footprint | Offers dual-line protection in identical area; lower ESD rating trades off for tighter capacitance control | Choose for space-constrained dual-line interfaces (e.g., I²C SDA/SCL) where ±8 kV suffices. |
Compared with SMAJ5.0A and TPD2E001DRYR, DESD5V0U1BLQ-7B uniquely balances ultra-low capacitance (2.9 pF), ±10 kV ESD rating, and single-channel DFN1006-2 packaging-making it optimal for high-speed, single-line protection where signal fidelity and board space are critical.
Availability
DESD5V0U1BLQ-7B is available at Aetrix Electronics and suitable for smartphone antenna switching, USB 2.0 data line protection, HDMI interface safeguarding, and automotive infotainment display links requiring stable component supply across production ramps and long-lifecycle programs.
Supply support for DESD5V0U1BLQ-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 the Americas.
This device belongs to Diodes' DESD family of ultra-low-capacitance TVS diodes, engineered specifically for ESD protection of high-speed digital and RF interfaces in portable and automotive electronics.
FAQ
What is the maximum clamping voltage of DESD5V0U1BLQ-7B under IEC 61000-4-5 surge conditions?
The clamping voltage is specified as 7.2 V at 3.0 A for an 8/20 µs waveform per Figure 3 in the datasheet. This value is measured with the device mounted on a standard FR-4 PCB per Diodes' AP02001 pad layout. It remains stable across ambient temperatures from −65°C to +150°C and reflects worst-case conduction during surge events.
Does DESD5V0U1BLQ-7B meet automotive qualification standards?
While not AEC-Q200 qualified itself, the DESD5V0U1BLQ-7B is rated for operation from −65°C to +150°C and supplied in a green, halogen-free, RoHS 3-compliant package. It is widely used in automotive infotainment displays and telematics modules where system-level ESD testing (ISO 10605) is performed using this component as part of the protection scheme.
How does the 2.9 pF capacitance impact USB 2.0 signal integrity?
At 2.9 pF, the device introduces negligible capacitive loading on 90 Ω differential USB 2.0 traces. Simulations and lab measurements confirm <0.5% rise-time degradation and no measurable eye closure at 480 Mbps, provided layout follows Diodes' recommended 0.3 mm trace clearance and ground-fill rules around the DFN1006-2 footprint.
Can DESD5V0U1BLQ-7B replace a unidirectional TVS in a 5 V rail application?
No-it is strictly bidirectional and lacks a defined cathode-to-ground orientation for DC rail clamping. Its 5 V reverse standoff applies symmetrically; applying sustained >5 V DC across its terminals will cause conduction. For 5 V rail protection, use a unidirectional TVS like PSM712 or SMAJ5.0A with appropriate polarity alignment.
DESD5V0U1BLQ-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):
- 5V (Max)
- Voltage - Breakdown (Min):
- 5.5V
- Voltage - Clamping (Max) @ Ipp:
- 7.2V (Typ)
- Current - Peak Pulse (10/1000µs):
- 3A (8/20µs)
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 2.9pF @ 1MHz
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- X1-DFN1006-2
DESD5V0U1BLQ-7B FAQ
1.How can I place an order for DESD5V0U1BLQ-7B through Aetrix?
Please submit a Request for Quotation (RFQ) for DESD5V0U1BLQ-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 DESD5V0U1BLQ-7B reliable?
The price and inventory of DESD5V0U1BLQ-7B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DESD5V0U1BLQ-7B is usually 5 days.
3.What payment methods are accepted for DESD5V0U1BLQ-7B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DESD5V0U1BLQ-7B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DESD5V0U1BLQ-7B?
DESD5V0U1BLQ-7B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DESD5V0U1BLQ-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 DESD5V0U1BLQ-7B?
For technical support, including DESD5V0U1BLQ-7B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DESD5V0U1BLQ-7B requirements.
6.How does Aetrix verify that DESD5V0U1BLQ-7B is sourced from the original manufacturer or authorized distributors?
All DESD5V0U1BLQ-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 DESD5V0U1BLQ-7B meets industry standards.
7.What is the process for return or replacement of DESD5V0U1BLQ-7B?
All DESD5V0U1BLQ-7B units undergo pre-shipment inspection (PSI). If there is an issue with DESD5V0U1BLQ-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 DESD5V0U1BLQ-7B part is unused and in its original packaging.
Return procedure for DESD5V0U1BLQ-7B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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