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STMicroelectronics ESDALC6V1-1U2
- Part No.:
- ESDALC6V1-1U2
- Manufacturer:
- STMicroelectronics
- Category:
- TVS Diodes
- Package:
- 0201 (0603 Metric)
- Datasheet:
-
ESDALC6V1-1U2.pdf
- Description:
- TVS DIODE 3VWM ST0201
- Quantity:
- Payment:
- Shipping:
Inventory:82,762
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Product details
Overview
ESDALC6V1-1U2 from STMicroelectronics is a unidirectional single-line TVS diode for ESD protection of high-speed data lines, featuring 6.1 V minimum breakdown voltage, 12 pF typical capacitance at 0 V, and IEC 61000-4-2 Level 4 (±8 kV contact) compliance in a 0201 ST0201 package. It targets space-constrained portable electronics requiring low loading and robust transient immunity.
For engineers reviewing the ESDALC6V1-1U2 datasheet, ESDALC6V1-1U2 pinout, ESDALC6V1-1U2 application, or ESDALC6V1-1U2 equivalent, key selection criteria include line capacitance impact on signal integrity, clamping performance under 2 A ESD pulse, unidirectional polarity alignment with I/O rail configuration, and MSL1 reflow compatibility for ultra-fine-pitch assembly.
Technical Context
This device operates as a clamping-type transient voltage suppressor optimized for electrostatic discharge events on low-voltage, high-frequency interfaces. Its unidirectional architecture provides forward conduction path to ground while blocking reverse leakage below 3 V standoff, enabling integration on biased signal lines such as USB D+/D− or HDMI TMDS pairs.
Designed for minimal parasitic loading, it achieves 12 pF junction capacitance at 0 V with <1.3 Ω dynamic impedance at 1 A pulse, ensuring sub-15 V clamping voltage up to 2 A peak current (8/20 µs). The ST0201 footprint supports PCB area reduction to 0.18 mm² without sacrificing ESD robustness.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage | 6.1 V min @ 1 mA - defines minimum trigger threshold before clamping activates |
| Junction Capacitance | 12 pF typ. @ 0 V, 1 MHz - limits signal distortion on >100 MHz data lines |
| Clamping Voltage | ≤15 V @ 2 A, 8/20 µs - ensures protected IC I/O remains below absolute maximum ratings |
| ESD Rating | ±8 kV contact per IEC 61000-4-2 Level 4 - qualifies for handheld consumer product certification |
| Leakage Current | 100 nA max @ 3 V - avoids DC bias shift or battery drain in always-on ports |
| Package Size | ST0201 (0201 metric) - occupies 0.18 mm² PCB area, compatible with automated placement |
| MSL Level | MSL1 - allows unlimited floor life and standard reflow without baking |
Pinout & Package
ESDALC6V1-1U2 uses the ST0201 surface-mount package: 0.60 mm length × 0.30 mm width × 0.25 mm height, with two terminals marked Pin 1 (cathode) and Pin 2 (anode), oriented per top-view marking dot or bevel edge.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode | Connected to protected line; conducts during positive ESD transients toward ground |
| Pin 2 | Anode | Connected to system ground; completes clamping path during ESD event |
Key Features
| Feature | Design Value |
|---|---|
| Low capacitance interface protection | 12 pF typ. enables use on USB 2.0, HDMI, and MIPI D-PHY without signal degradation |
| High-density board compatibility | 0.18 mm² footprint reduces routing congestion in smartphone camera modules and audio codecs |
| Multiple-strike ESD resilience | Sustains ≥1000 IEC 61000-4-2 ±8 kV discharges without parameter shift or failure |
| Lead-free and RoHS compliant | Meets UL94 V0 epoxy and ECOPACK® environmental requirements for global market access |
Applications
| Portable Multimedia Players | Digital Cameras |
|---|---|
Use Scenario: ESD protection on headphone jack, microSD card interface, and touch panel I²C bus in MP3 players and tablets. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed inline between connector and SoC GPIO, clamping fast-rising ESD pulses before they reach sensitive analog front-end circuitry. Use Value: Prevents latch-up or gate oxide damage in audio codec ICs while maintaining ≤12 pF loading for full-bandwidth audio signal fidelity. | Use Scenario: Transient suppression on CMOS image sensor parallel data bus and autofocus motor control lines in compact digital cameras. IC Role / Device Role / Timing Role: Single-line TVS positioned at board edge connectors to shunt ESD energy directly to ground plane, minimizing loop inductance. Use Value: Enables reliable operation at 24 MHz pixel clock rates by limiting capacitive loading to 12 pF and clamping transients to <15 V within 1 ns response time. |
| Notebook USB Ports | Cellular Handset Antenna Switches |
Use Scenario: Protection of USB 2.0 differential pair (D+/D−) against user-handling ESD during cable insertion/removal on ultrabook docking interfaces. IC Role / Device Role / Timing Role: Two discrete ESDALC6V1-1U2 units deployed per line, leveraging unidirectional behavior to match USB's 3.3 V biased signaling. Use Value: Maintains eye diagram integrity at 480 Mbps by avoiding excessive capacitance-induced rise-time degradation or jitter accumulation. | Use Scenario: ESD safeguarding of RF antenna switch control lines (e.g., SPDT enable/disable) exposed to handling during handset assembly and field service. IC Role / Device Role / Timing Role: Low-leakage (100 nA) TVS placed between baseband processor GPIO and antenna switch logic input, preventing false toggling during ESD events. Use Value: Eliminates unintended antenna path switching or RF desense caused by ESD-induced voltage spikes on 1.8 V control rails. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPD1E01B04DPYR | 10 pF typ. capacitance, bidirectional, 5.5 V breakdown | Better suited for symmetric AC-coupled lines (e.g., USB Type-C CC pins) | Select when bidirectional clamping and lower capacitance outweigh unidirectional rail alignment needs |
| ESD9X5.0ST5G | 15 pF typ. capacitance, unidirectional, 5.0 V breakdown | Higher leakage (250 nA) and larger SOD-923 footprint (0.63 mm²) | Choose only if lower clamping voltage (<12 V @ 1 A) is prioritized over board area and leakage budget |
Compared with TPD1E01B04DPYR and ESD9X5.0ST5G, ESDALC6V1-1U2 offers optimal balance of ultra-small area (0.18 mm²), precise 6.1 V breakdown for 3.3 V I/O systems, and verified multi-strike endurance-making it preferred for high-density mobile camera modules and portable audio subsystems.
Availability
ESDALC6V1-1U2 is available at Aetrix Electronics and suitable for portable multimedia players, digital cameras, and cellular handsets requiring stable component supply, consistent MSL1 handling, and long-term lifecycle support for consumer electronics production.
Supply support for ESDALC6V1-1U2 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power management ICs, sensors, and protection devices for automotive, industrial, and consumer markets.
The ESDALC series belongs to ST's Transil™ TVS portfolio, engineered specifically for high-frequency signal line protection where low capacitance, small footprint, and repeatable ESD immunity are critical-targeting mobile, wearables, and IoT edge devices.
FAQ
What is the maximum operating temperature for ESDALC6V1-1U2?
The device supports an operating junction temperature range of −40 °C to +125 °C, with thermal derating applied above 25 °C ambient per Figure 3 in the datasheet. Its 125 °C max junction rating allows deployment in thermally constrained spaces like smartphone battery compartments or near PMICs without thermal shutdown risk.
Can ESDALC6V1-1U2 protect bidirectional data lines like I²C?
No-it is unidirectional and designed for lines referenced to ground with defined polarity, such as USB D+ or HDMI TX0+. For true bidirectional buses like I²C, a bidirectional TVS (e.g., TPD1E01B04DPYR) or dual-diode configuration is required to clamp both positive and negative transients relative to the signal swing.
Does ESDALC6V1-1U2 require external series resistance for optimal performance?
No external resistor is needed for basic ESD clamping. However, adding a 0–10 Ω series resistor near the protected IC can reduce peak current stress on the TVS and improve clamping consistency during repetitive strikes-particularly beneficial in high-reliability camera module designs.
How does the 12 pF capacitance affect USB 2.0 signal integrity?
At 12 pF, ESDALC6V1-1U2 introduces negligible impedance drop (>1.3 kΩ at 100 MHz), preserving USB 2.0 eye diagrams and meeting USB-IF return loss specifications. Measured S21 attenuation stays below −2.1 dB up to 1.02 GHz, confirming minimal insertion loss on 480 Mbps differential signals.
ESDALC6V1-1U2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 0201 (0603 Metric)
- Series:
- ESDA, TRANSIL™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 3V
- Voltage - Breakdown (Min):
- 6.1V
- Voltage - Clamping (Max) @ Ipp:
- -
- Current - Peak Pulse (10/1000µs):
- -
- Power - Peak Pulse:
- 20W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 12pF @ 1MHz
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 0201
ESDALC6V1-1U2 FAQ
1.How can I place an order for ESDALC6V1-1U2 through Aetrix?
Please submit a Request for Quotation (RFQ) for ESDALC6V1-1U2 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 ESDALC6V1-1U2 reliable?
The price and inventory of ESDALC6V1-1U2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ESDALC6V1-1U2 is usually 5 days.
3.What payment methods are accepted for ESDALC6V1-1U2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ESDALC6V1-1U2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ESDALC6V1-1U2?
ESDALC6V1-1U2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ESDALC6V1-1U2 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 ESDALC6V1-1U2?
For technical support, including ESDALC6V1-1U2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ESDALC6V1-1U2 requirements.
6.How does Aetrix verify that ESDALC6V1-1U2 is sourced from the original manufacturer or authorized distributors?
All ESDALC6V1-1U2 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 ESDALC6V1-1U2 meets industry standards.
7.What is the process for return or replacement of ESDALC6V1-1U2?
All ESDALC6V1-1U2 units undergo pre-shipment inspection (PSI). If there is an issue with ESDALC6V1-1U2, 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 ESDALC6V1-1U2 part is unused and in its original packaging.
Return procedure for ESDALC6V1-1U2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ESDALC6V1-1U2 Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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