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STMicroelectronics ESDAXLC5-1U2
- Part No.:
- ESDAXLC5-1U2
- Manufacturer:
- STMicroelectronics
- Category:
- TVS Diodes
- Package:
- 0201 (0603 Metric)
- Datasheet:
-
ESDAXLC5-1U2.pdf
- Description:
- TVS DIODE 3.6VWM 8VC ST0201
- Quantity:
- Payment:
- Shipping:
Inventory:104,290
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Product details
Overview
ESDAXLC5-1U2 from STMicroelectronics is a unidirectional single-line TVS diode designed for ESD protection of high-speed data lines, featuring 0.7 pF typical line capacitance, 10.4 V clamping voltage at 8 kV IEC 61000-4-2 contact discharge, and 11.4 GHz bandwidth-ideal for USB 2.0, HDMI, and MIPI D-PHY interfaces in smartphones and portable multimedia devices.
For engineers reviewing the ESDAXLC5-1U2 datasheet, ESDAXLC5-1U2 pinout, ESDAXLC5-1U2 application, or ESDAXLC5-1U2 equivalent, key selection criteria include ultra-low capacitance (≤0.7 pF), sub-11 V clamping under IEC 61000-4-2, 0201 footprint compatibility, and compliance with IEC 61000-4-2 Level 4 (±30 kV air / ±16 kV contact).
Technical Context
This device operates as a low-capacitance transient voltage suppressor optimized for signal integrity preservation on high-frequency digital lines. Its unidirectional architecture enables asymmetric clamping (7 V reverse clamping at 1 A, 2.5 V forward clamping at 1 A) while maintaining <0.7 pF capacitance up to 3 GHz.
The ST0201 0201 package integrates a silicon avalanche structure with controlled dynamic resistance (0.39 Ω direct, 0.52 Ω forward), enabling fast response (<1 ns) to ESD events and stable performance across –55 °C to +150 °C junction temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Line capacitance | 0.7 pF max at 200–3000 MHz - preserves signal integrity on USB 2.0 and MIPI D-PHY links |
| Reverse clamping voltage | 10.4 V at 8 kV IEC 61000-4-2 contact discharge - limits voltage stress on protected IC I/O pins |
| Breakdown voltage | 6.6 V typ at 1 mA - ensures reliable turn-on before system-level damage threshold |
| Bandwidth | 11.4 GHz - supports >5 Gbps serial interfaces without insertion loss degradation |
| Leakage current | 100 nA max at 3.6 V reverse - avoids DC loading on low-power sensor or audio bias networks |
| Package | ST0201 (0201) - occupies only 0.18 mm² PCB area for space-constrained mobile designs |
Pinout & Package
The ESDAXLC5-1U2 is housed in the ST0201 0201 surface-mount package (0.30 × 0.60 mm, 0.18 mm² footprint), with epoxy meeting UL94 V0 flammability rating. Pin 1 is marked by a bar on the top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Input/protected line connection | Connects to high-speed data line (e.g., USB D+); conducts during negative ESD transients |
| Cathode (Pin 2) | GND reference | Direct low-inductance path to system ground plane; critical for clamping efficiency below 10.4 V |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low line capacitance | 0.7 pF max - enables use on 480 Mbps USB 2.0 and 1.5 Gbps MIPI D-PHY without eye diagram degradation |
| High ESD immunity | ±30 kV air / ±16 kV contact per IEC 61000-4-2 Level 4 - exceeds industrial and consumer ESD requirements |
| Low clamping voltage | 10.4 V at 8 kV contact discharge - protects 3.3 V and 3.6 V I/O rails without overvoltage damage |
| High-frequency bandwidth | 11.4 GHz - maintains signal fidelity on differential pairs operating above 5 Gbps |
Applications
| Smartphone Data Lines | USB 2.0 Interface Protection |
|---|---|
Use Scenario: Protecting MIPI D-PHY and eMMC data lanes in compact smartphone mainboards against human-body-model ESD events. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed directly at connector entry point to clamp transients before reaching baseband processor I/O. Use Value: 0.7 pF capacitance prevents signal rise-time degradation; 10.4 V clamping ensures safe operation within 3.3 V I/O absolute maximum ratings. | Use Scenario: Safeguarding USB 2.0 D+/D− lines in portable accessories against repeated plug/unplug ESD stress. IC Role / Device Role / Timing Role: Single-line ESD suppressor mounted adjacent to USB receptacle to minimize trace inductance and clamping delay. Use Value: 11.4 GHz bandwidth eliminates resonance effects up to third harmonic of 480 MHz signaling; 0201 size saves board space near dense connectors. |
| HDMI Source Port Protection | Digital Camera Sensor Interface |
Use Scenario: Shielding HDMI TMDS clock and data channels in tablet PCs from ESD coupling via display cables. IC Role / Device Role / Timing Role: Low-capacitance TVS on each TMDS lane to maintain differential impedance and reduce jitter accumulation. Use Value: Sub-1 pF capacitance avoids skew between differential pairs; 13.7 V TLP clamping at 16 A supports robust surge margin beyond IEC test levels. | Use Scenario: Protecting high-resolution image sensor parallel data buses (e.g., 10-bit LVCMOS) in compact digital cameras. IC Role / Device Role / Timing Role: Per-line ESD suppression on sensor output pins to prevent latch-up or gate oxide damage during handling. Use Value: 6.6 V breakdown voltage aligns with 3.3 V sensor I/O rails; 0.18 mm² footprint allows placement directly at sensor pad without routing detours. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPD1E05U06DPYR | 0.5 pF capacitance, 12 V clamping at 8 kV, same 0201 package | Slightly higher clamping voltage; optimized for 5 V tolerant I/O | Prefer when protecting 5 V logic or where lower capacitance outweighs clamping margin |
| ESD9X5.0ST5G | 1.0 pF capacitance, 14.5 V clamping, SOD-523 package (larger footprint) | Higher capacitance limits use on >200 MHz signals; requires more PCB area | Select only if 0201 assembly capability is unavailable or thermal dissipation >20 W is required |
Compared with TPD1E05U06DPYR and ESD9X5.0ST5G, ESDAXLC5-1U2 delivers the lowest clamping voltage (10.4 V) in the 0201 form factor, making it optimal for 3.3 V high-speed interfaces where both signal integrity and robust ESD margin are critical.
Availability
ESDAXLC5-1U2 is available at Aetrix Electronics and suitable for smartphones, USB 2.0 peripherals, and HDMI source devices requiring stable component supply with full ECOPACK®2 and RoHS compliance.
Supply support for ESDAXLC5-1U2 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 analog, microcontroller, power, and sensor solutions for automotive, industrial, and consumer markets.
The ESDAXLC5-1U2 belongs to ST's ESDAXLC series of ultra-low-capacitance TVS diodes, engineered specifically for high-speed digital interface protection in space-constrained portable electronics.
FAQ
What is the maximum operating temperature for ESDAXLC5-1U2?
The ESDAXLC5-1U2 has a specified operating junction temperature range of –55 °C to +150 °C, validated per absolute maximum ratings in Table 1 of the official datasheet. This allows reliable deployment in mobile devices exposed to ambient temperatures up to +85 °C and internal hot spots near processors or power stages.
Does ESDAXLC5-1U2 support bidirectional ESD protection?
No. The ESDAXLC5-1U2 is explicitly a unidirectional TVS diode, as confirmed by its functional diagram, electrical characteristics (asymmetric VBR/VRM), and application notes. It protects only against negative transients on the anode line relative to cathode (ground); bidirectional protection requires dual-diode configurations like ESDALY15-1U2.
Can ESDAXLC5-1U2 be used on 5 V logic lines?
Yes, but with derating consideration: its 6.6 V typical breakdown voltage and 10.4 V clamping at 8 kV provide margin above 5 V rail, though peak clamping may approach absolute maximum ratings of some 5 V I/O cells. For dedicated 5 V protection, ST recommends TPD1E05U06DPYR with higher VRM (5.0 V) and lower clamping variance.
Is the 0201 package compatible with standard reflow profiles?
Yes. ST specifies compatibility with IPC/JEDEC J-STD-020-compliant reflow profiles, including peak temperatures up to 260 °C for 10 seconds. The recommended profile (Figure 15) uses a 235 °C peak with controlled ramp rates to prevent tombstoning or solder voiding in the ST0201 footprint.
ESDAXLC5-1U2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 0201 (0603 Metric)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 3.6V
- Voltage - Breakdown (Min):
- 6.6V
- Voltage - Clamping (Max) @ Ipp:
- 8V
- Current - Peak Pulse (10/1000µs):
- 2.2A
- Power - Peak Pulse:
- 20W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 0.7pF @ 3MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 0201
ESDAXLC5-1U2 FAQ
1.How can I place an order for ESDAXLC5-1U2 through Aetrix?
Please submit a Request for Quotation (RFQ) for ESDAXLC5-1U2 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 ESDAXLC5-1U2 reliable?
The price and inventory of ESDAXLC5-1U2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ESDAXLC5-1U2 is usually 5 days.
3.What payment methods are accepted for ESDAXLC5-1U2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ESDAXLC5-1U2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ESDAXLC5-1U2?
ESDAXLC5-1U2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ESDAXLC5-1U2 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 ESDAXLC5-1U2?
For technical support, including ESDAXLC5-1U2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ESDAXLC5-1U2 requirements.
6.How does Aetrix verify that ESDAXLC5-1U2 is sourced from the original manufacturer or authorized distributors?
All ESDAXLC5-1U2 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 ESDAXLC5-1U2 meets industry standards.
7.What is the process for return or replacement of ESDAXLC5-1U2?
All ESDAXLC5-1U2 units undergo pre-shipment inspection (PSI). If there is an issue with ESDAXLC5-1U2, 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 ESDAXLC5-1U2 part is unused and in its original packaging.
Return procedure for ESDAXLC5-1U2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ESDAXLC5-1U2 Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
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