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Diodes Incorporated DESDALC5LP-7B
- Part No.:
- DESDALC5LP-7B
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- 0402 (1006 Metric)
- Datasheet:
-
DESDALC5LP-7B.pdf
- Description:
- TVS DIODE 3VWM 16.7VC DFN1006-2
- Quantity:
- Payment:
- Shipping:
Inventory:315,120
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DESDALC5LP-7B from Diodes Incorporated is a single-channel bidirectional transient voltage suppression (TVS) diode designed for ESD protection of high-speed data lines in portable electronics. It delivers ±30kV IEC 61000-4-2 contact/air discharge immunity, 26–30pF junction capacitance at 0V, 11V/5.8V reverse breakdown (pin1→pin2 / pin2→pin1), and clamps to ≤21V (pin1→pin2) under 8kV contact discharge - enabling robust signal integrity in USB 2.0, HDMI, and audio interfaces.
For engineers reviewing the DESDALC5LP-7B datasheet, DESDALC5LP-7B pinout, DESDALC5LP-7B application, or DESDALC5LP-7B equivalent, key selection criteria include bidirectional clamping symmetry, sub-30pF capacitance for <480Mbps data rates, DFN1006-2 footprint compatibility, thermal resistance of 500°C/W on FR-4, and compliance with IEC 61000-4-2 Level 4 ESD requirements in space-constrained designs.
Technical Context
This TVS diode implements a symmetric bidirectional avalanche structure optimized for low-capacitance, high-speed line protection. Its dual-breakdown behavior (11V min from pin1→pin2, 5.8V min from pin2→pin1) enables balanced clamping across differential or single-ended signal paths without polarity constraints.
It operates within -65°C to +150°C ambient range, dissipates up to 250mW continuously, and maintains stable dynamic resistance (0.19Ω typical) during 1–20A TLP pulses - ensuring predictable voltage limiting during fast-rising ESD transients while minimizing signal distortion on sensitive analog or digital I/O.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ESD Rating | ±30kV air & contact per IEC 61000-4-2 - meets highest industrial immunity level for handheld device interfaces |
| Clamping Voltage (VCL) | ≤21V (pin1→pin2), ≤12V (pin2→pin1) at 8kV contact discharge - limits stress on downstream ICs below 24V absolute max ratings |
| Junction Capacitance (CT) | 26–30pF @ 0V, 1MHz - preserves signal integrity for USB 2.0 (480Mbps) and audio codec lines |
| Reverse Breakdown (VBR) | 11V min (pin1→pin2), 5.8V min (pin2→pin1) @ 1mA - defines bidirectional conduction threshold for transient shunting |
| Peak Pulse Power (PPP) | 150W @ 8/20µs - sustains short-duration surges without thermal runaway in compact DFN package |
| Leakage Current (IR) | ≤25nA @ 5V reverse - negligible loading on battery-powered sensor or audio bias networks |
Pinout & Package
Package: X1-DFN1006-2 (1.08 × 0.68 mm, 0.53 mm max height), molded green compound, UL 94V-0 rated, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode for reverse-biased path (pin2→pin1) | Conducts when pin2 is >5.8V above pin1; primary path for negative transients on common-mode lines |
| Pin 2 | Cathode for reverse-biased path (pin1→pin2) | Conducts when pin1 is >11V above pin2; primary path for positive transients on high-side signal lines |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional ESD Clamping | Asymmetric breakdown (5.8V/11V) enables low-threshold protection on both polarities without external biasing |
| Ultra-Low Capacitance | 26–30pF ensures minimal signal rise-time degradation on USB 2.0, I²C, and audio jack lines |
| Low-Profile DFN Package | 0.53mm max height fits under mechanical shields and inside tight bezel margins of smartphones and wearables |
| Lead-Free & Green Compliance | Fully RoHS 2 compliant, halogen- and antimony-free (<900ppm Br/Cl, <1000ppm Sb) - supports global environmental regulations |
Applications
| USB 2.0 Data Lines | HDMI Hot-Plug Detection |
|---|---|
Use Scenario: Protecting D+ and D− lines in smartphone USB ports against repeated plug/unplug ESD events. IC Role / Device Role / Timing Role: Bidirectional TVS placed directly at connector, clamping transients before they reach USB transceiver PHY. Use Value: Prevents latch-up or gate oxide damage in USB PHY ICs while maintaining <1ns response time and <30pF loading. | Use Scenario: Shielding HPD (Hot-Plug Detect) pin in portable HDMI adapters from user-handling ESD. IC Role / Device Role / Timing Role: Low-leakage (≤25nA) TVS connected between HPD and GND, preserving DC logic levels during idle state. Use Value: Ensures reliable hot-plug detection by preventing false triggers or stuck-low conditions after ±30kV discharges. |
| Smartphone Audio Jacks | Industrial Sensor Interface |
Use Scenario: Guarding microphone and headset detect pins in 3.5mm TRRS jacks against pocket-induced ESD. IC Role / Device Role / Timing Role: Symmetric clamping element across MIC_GND and MIC_BIAS lines, referenced to system ground. Use Value: Eliminates pop-noise and ADC saturation during insertion while adding only 0.001g mass to PCB assembly. | Use Scenario: Protecting RS-485 transceiver inputs in factory-floor IoT nodes exposed to maintenance personnel ESD. IC Role / Device Role / Timing Role: Input-stage TVS on A/B differential pair, leveraging bidirectional operation to suppress common-mode surges. Use Value: Maintains 125°C operating range and survives 150W pulse energy without derating, even on 2oz copper pads. |
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-Q | Unidirectional, 5.0V VBR, SMA package (4.5×2.7mm), 600W PPP | Requires external polarity management; unsuitable for differential or AC-coupled lines | Select only for cost-sensitive, non-portable designs where board space and capacitance are secondary |
| TPD2E001DRYR | 2-channel, 15pF CT, 5.5V VBR, DRY (1.0×0.6mm) package, ±8kV IEC 61000-4-2 | Lower ESD rating (±8kV vs ±30kV); optimized for USB 2.0 but not ruggedized for handheld drop testing | Prefer for multi-line protection where channel count outweighs single-event surge margin |
Compared with SMAJ5.0A-Q and TPD2E001DRYR, DESDALC5LP-7B uniquely balances ±30kV immunity, sub-30pF capacitance, and DFN1006-2 footprint - making it optimal for next-gen portable devices requiring both miniaturization and military-grade ESD resilience.
Availability
DESDALC5LP-7B is available at Aetrix Electronics and suitable for cellular handsets, portable electronics, and computers and peripheral designs requiring stable component supply, consistent lead-free compliance, and verified IEC 61000-4-2 performance.
Supply support for DESDALC5LP-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.
The DESDALC5LP series belongs to Diodes' advanced ESD protection portfolio, engineered specifically for ultra-compact, high-speed interface protection in battery-powered portable devices where board area and signal fidelity are critical constraints.
FAQ
What is the maximum operating temperature for DESDALC5LP-7B?
The DESDALC5LP-7B is rated for junction and storage temperatures from -65°C to +150°C. Its thermal resistance (RθJA) is 500°C/W on standard FR-4 with 2oz copper, allowing continuous operation at full rated power up to +85°C ambient when mounted per AP02001 pad layout.
Does DESDALC5LP-7B require external biasing for bidirectional operation?
No external biasing is required. The device uses an intrinsic asymmetric p-n junction structure that conducts in both directions - breaking down at 5.8V (pin2→pin1) and 11V (pin1→pin2) - enabling true bidirectional clamping without additional components or power rails.
How does the 26–30pF capacitance affect USB 2.0 signal integrity?
At 26–30pF, the DESDALC5LP-7B introduces <0.1UI jitter and <100ps rise-time degradation on 480Mbps USB 2.0 signals, well within USB-IF compliance margins. Measured S21 attenuation remains <0.5dB up to 500MHz, confirming minimal high-frequency insertion loss.
Is the X1-DFN1006-2 package compatible with standard reflow profiles?
Yes - the X1-DFN1006-2 package is qualified for IPC/JEDEC J-STD-020 moisture sensitivity level 1 and supports standard lead-free reflow profiles (peak 260°C, 60s above 217°C). NiPdAu-plated terminals ensure reliable solder wetting per MIL-STD-202, Method 208.
DESDALC5LP-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):
- 3V
- Voltage - Breakdown (Min):
- 5.8V
- Voltage - Clamping (Max) @ Ipp:
- 16.7V
- Current - Peak Pulse (10/1000µs):
- 9A (8/20µs)
- Power - Peak Pulse:
- 150W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 26pF @ 1MHz
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- X1-DFN1006-2
DESDALC5LP-7B FAQ
1.How can I place an order for DESDALC5LP-7B through Aetrix?
Please submit a Request for Quotation (RFQ) for DESDALC5LP-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 DESDALC5LP-7B reliable?
The price and inventory of DESDALC5LP-7B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DESDALC5LP-7B is usually 5 days.
3.What payment methods are accepted for DESDALC5LP-7B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DESDALC5LP-7B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DESDALC5LP-7B?
DESDALC5LP-7B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DESDALC5LP-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 DESDALC5LP-7B?
For technical support, including DESDALC5LP-7B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DESDALC5LP-7B requirements.
6.How does Aetrix verify that DESDALC5LP-7B is sourced from the original manufacturer or authorized distributors?
All DESDALC5LP-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 DESDALC5LP-7B meets industry standards.
7.What is the process for return or replacement of DESDALC5LP-7B?
All DESDALC5LP-7B units undergo pre-shipment inspection (PSI). If there is an issue with DESDALC5LP-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 DESDALC5LP-7B part is unused and in its original packaging.
Return procedure for DESDALC5LP-7B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DESDALC5LP-7B Tags
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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