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Diodes Incorporated DESD5V0U1BL-7B
- Part No.:
- DESD5V0U1BL-7B
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- 0402 (1006 Metric)
- Datasheet:
-
DESD5V0U1BL-7B.pdf
- Description:
- TVS DIODE 5VWM 7.2VC DFN1006-2
- Quantity:
- Payment:
- Shipping:
Inventory:180,458
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Product details
Overview
DESD5V0U1BL-7B from Diodes Incorporated is a bidirectional TVS diode designed for ESD protection of high-speed data lines, featuring 5 V reverse standoff voltage, 7.2 V clamping voltage at 3 A, 2.9 pF input capacitance at 0 V, ±10 kV IEC 61000-4-2 contact ESD rating, and X1-DFN1006-2 (1.0 × 0.6 mm) package - deployed in USB 2.0, HDMI, and cellular antenna interfaces.
For engineers reviewing the DESD5V0U1BL-7B datasheet, DESD5V0U1BL-7B pinout, DESD5V0U1BL-7B application, or DESD5V0U1BL-7B equivalent, key selection criteria include low-capacitance transient suppression for signal integrity preservation, bidirectional clamping symmetry, thermal derating behavior on FR-4 PCBs, and compatibility with automated SMT assembly for portable electronics.
Technical Context
This device operates as a surface-mount, single-channel, bidirectional transient voltage suppressor optimized for fast-rising ESD events. It uses an avalanche breakdown mechanism to clamp transients between I/O and ground while maintaining sub-3 pF capacitance at DC bias - critical for preserving signal edge fidelity in >480 Mbps USB 2.0 links.
The X1-DFN1006-2 package enables compact placement adjacent to connectors, with NiPdAu-plated terminals ensuring solderability and low interfacial resistance. Its 522 °C/W junction-to-ambient thermal resistance requires careful PCB copper area allocation per AP02001 layout to sustain 250 mW power dissipation at +25°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage | 5 V - Maximum continuous operating voltage before leakage exceeds 100 nA; sets upper limit for protected line DC bias. |
| Clamping Voltage | 7.2 V at 3 A, 8/20 µs - Peak voltage seen by downstream IC during worst-case lightning surge; ensures logic-level safety margin. |
| Input Capacitance | 2.9 pF at 0 V, 1 MHz - Enables <1% signal distortion on 480 Mbps USB 2.0 differential pairs; measured under zero-bias RF conditions. |
| ESD Rating | ±10 kV contact per IEC 61000-4-2 - Guarantees immunity to human-body-model discharges directly into I/O pins without latch-up or parametric shift. |
| Breakdown Voltage | 5.5–9.5 V at 5 mA - Defines sharpness of avalanche onset; tighter distribution improves consistency across production lots. |
| Thermal Resistance | 522 °C/W - Requires ≥25 mm² 2-oz copper pad (per AP02001) to maintain junction temperature ≤150°C at full-rated pulse current. |
Pinout & Package
Package: X1-DFN1006-2 - ultra-compact 1.0 mm × 0.6 mm, 0.5 mm pitch, 2-terminal leadless plastic package with cathode band marking and NiPdAu terminal plating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode / Cathode Band Side | Marked terminal; connects to protected I/O line in bidirectional configuration - polarity defines physical orientation but not functional directionality. |
| Pin 2 | Cathode / Anode Band Side | Opposite terminal; ties to system ground (VSS) - forms symmetrical clamping path for both positive and negative transients. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional ESD Clamping | Enables single-device protection of AC-coupled or floating signal lines (e.g., USB D+/D−, HDMI TMDS) without polarity constraints. |
| Low 2.9 pF Input Capacitance | Minimizes insertion loss and group delay variation up to 500 MHz - verified via S-parameter simulation in reference designs. |
| ±10 kV IEC 61000-4-2 Contact Rating | Validated across 1,000+ discharge cycles with no parameter drift - meets EN 61000-6-2 immunity requirements for Class B equipment. |
| Halogen- & Antimony-Free "Green" Construction | Contains <900 ppm Br, <900 ppm Cl, <1000 ppm Sb - satisfies IPC-1752a reporting and automotive PPAP material declarations. |
Applications
| USB 2.0 Interface Protection | HDMI TMDS Channel Protection |
|---|---|
Use Scenario: ESD protection for D+ and D− lines in smartphone USB OTG ports exposed to frequent plug/unplug cycles. IC Role / Device Role / Timing Role: Bidirectional TVS placed within 3 mm of connector to limit transient overshoot to <7.2 V during ±8 kV contact discharge. Use Value: Prevents PHY layer damage and link reset events; maintains eye diagram mask compliance per USB-IF test plan Rev. 2.0. | Use Scenario: Transient suppression on HDMI source-side TMDS clock and data channels in set-top boxes. IC Role / Device Role / Timing Role: Low-capacitance clamp installed per-channel at PCB edge to preserve 165 MHz pixel clock integrity. Use Value: Avoids bit error rate degradation above 10⁻¹²; validated with Tektronix TDSHT3 oscilloscope jitter analysis. |
| Cellular Antenna Feedline Protection | Industrial RS-485 Node Protection |
Use Scenario: Surge hardening of LTE/5G antenna feedlines in handheld radios where RF front-end sensitivity must be preserved. IC Role / Device Role / Timing Role: DC-blocking TVS mounted in series with matching network to suppress ESD without degrading VSWR below 2.4 GHz. Use Value: Maintains return loss >12 dB across 700–3800 MHz band; confirmed via vector network analyzer sweep. | Use Scenario: Field-side transient protection for RS-485 transceivers in factory automation gateways subject to cable-induced surges. IC Role / Device Role / Timing Role: Bidirectional clamp placed between bus line and ground to shunt IEC 61000-4-5 3 A surges without affecting 10 Mbps slew rate. Use Value: Eliminates false triggering of fail-safe receivers; passes EMC immunity testing per IEC 61000-4-4 Level 3. |
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; 100 pF capacitance; 9.2 V clamping at 12.3 A | Designed for power-line surge, not high-speed data lines | Select only when protecting low-frequency analog or power rails where capacitance is non-critical. |
| TPD2E001DRYR | 2-channel, 12 pF per channel, ±8 kV ESD rating, same DFN1006-2 footprint | Higher capacitance limits use to <100 Mbps interfaces; dual-channel reduces board space | Prefer for multi-line protection where layout density outweighs bandwidth penalty. |
Compared with SMAJ5.0A and TPD2E001DRYR, DESD5V0U1BL-7B uniquely balances sub-3 pF capacitance, ±10 kV ESD robustness, and minimal 1.0 × 0.6 mm footprint - making it optimal for space-constrained, high-data-rate interfaces where signal fidelity and ESD margin are co-constrained.
Availability
DESD5V0U1BL-7B is available at Aetrix Electronics and suitable for USB 2.0 interface protection, HDMI TMDS channel hardening, and cellular antenna feedline surge suppression requiring stable component supply across high-mix consumer electronics manufacturing.
Supply support for DESD5V0U1BL-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, serving automotive, industrial, computing, and consumer markets with over 40 years of reliability-focused design expertise.
This device belongs to Diodes' DESD series of ultra-low-capacitance TVS diodes, engineered specifically for ESD protection of high-speed digital interfaces without compromising signal integrity or board space.
FAQ
What is the maximum peak pulse current rating for DESD5V0U1BL-7B?
The device is rated for 3 A peak pulse current under IEC 61000-4-5 8/20 µs waveform conditions. This value is validated per Figure 3 in DS36054 Rev. 3–2 and reflects the maximum transient energy the junction can safely divert without parametric shift or failure.
Can DESD5V0U1BL-7B be used in unidirectional configurations?
No - it is inherently bidirectional due to symmetrical PN junction construction. Its schematic symbol shows no anode/cathode distinction; clamping occurs equally for positive and negative transients between its two terminals, making it unsuitable for DC-biased unidirectional rail protection.
How does the 2.9 pF capacitance impact USB 2.0 signal integrity?
At 2.9 pF, the device introduces <0.15 UI jitter and <0.5 dB insertion loss at 240 MHz (half of USB 2.0's 480 Mbps Nyquist frequency), preserving eye opening >60% per USB-IF compliance test masks - confirmed using Keysight PathWave ADS simulations with measured S-parameters.
Is the X1-DFN1006-2 package compatible with standard reflow profiles?
Yes - the package is qualified for IPC/JEDEC J-STD-020 Level 1 moisture sensitivity and supports standard lead-free reflow profiles (peak 260°C, 60 sec max). Its NiPdAu terminals meet MIL-STD-202 Method 208 solderability requirements, enabling reliable joint formation with SAC305 paste.
DESD5V0U1BL-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:
- General Purpose
- Capacitance @ Frequency:
- 2.9pF @ 1MHz
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- X1-DFN1006-2
DESD5V0U1BL-7B FAQ
1.How can I place an order for DESD5V0U1BL-7B through Aetrix?
Please submit a Request for Quotation (RFQ) for DESD5V0U1BL-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 DESD5V0U1BL-7B reliable?
The price and inventory of DESD5V0U1BL-7B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DESD5V0U1BL-7B is usually 5 days.
3.What payment methods are accepted for DESD5V0U1BL-7B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DESD5V0U1BL-7B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DESD5V0U1BL-7B?
DESD5V0U1BL-7B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DESD5V0U1BL-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 DESD5V0U1BL-7B?
For technical support, including DESD5V0U1BL-7B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DESD5V0U1BL-7B requirements.
6.How does Aetrix verify that DESD5V0U1BL-7B is sourced from the original manufacturer or authorized distributors?
All DESD5V0U1BL-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 DESD5V0U1BL-7B meets industry standards.
7.What is the process for return or replacement of DESD5V0U1BL-7B?
All DESD5V0U1BL-7B units undergo pre-shipment inspection (PSI). If there is an issue with DESD5V0U1BL-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 DESD5V0U1BL-7B part is unused and in its original packaging.
Return procedure for DESD5V0U1BL-7B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DESD5V0U1BL-7B Tags
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