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Semtech Corporation UCLAMP0541Z2ATKT
- Part No.:
- UCLAMP0541Z2ATKT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 2-XFDFN
- Datasheet:
-
UCLAMP0541Z2ATKT.pdf
- Description:
- TVS DIODE 5VWM 15VC SLP0402P2X4F
- Quantity:
- Payment:
- Shipping:
Inventory:9,573
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Product details
Overview
UCLAMP0541Z2ATKT from Semtech is a single-line transient voltage suppression (TVS) diode designed for ESD protection of 5V signal lines in ultra-compact portable electronics. It delivers ±15kV IEC 61000-4-2 contact/air ESD immunity, 6.5pF typical junction capacitance, 15V clamping voltage at 2A (8/20µs), and operates in the SLP0402P2X4F 01005 package (0.4 × 0.2 × 0.15 mm). It is deployed on audio ports, side keys, and USB data lines in smartphones and wearables.
For engineers reviewing the UCLAMP0541Z2ATKT datasheet, pinout, applications, or equivalent options, key selection criteria include low clamping voltage under fast TLP pulses (11V at 4A), dynamic resistance of 0.62Ω, reverse stand-off voltage of 5V, and compatibility with high-density 01005 PCB layouts requiring minimal trace loading.
Technical Context
The UCLAMP0541Z2ATKT is a unidirectional silicon-avalanche TVS diode optimized for board-level ESD surge suppression on single-ended 5V I/O lines. Its design centers on minimizing capacitive loading while maintaining robust clamping performance: 6.5pF capacitance at 0V ensures signal integrity for high-speed interfaces like USB 2.0 and audio codecs, and its 0.62Ω dynamic resistance enables rapid energy dissipation during sub-nanosecond ESD events.
It operates within –40°C to +125°C junction temperature range and features a 5V working voltage with 6.5–9.5V breakdown threshold (IT = 1mA). The device meets IEC 61000-4-2 Level 4 (±15kV contact/air) and supports peak pulse power of 30W (1.2/50µs), making it suitable for front-end protection where space and parasitic capacitance are critical constraints.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 5V - Matches standard USB, audio, and keypad I/O rail voltage; prevents false triggering during normal operation. |
| ESD Withstand | ±15kV contact/air (IEC 61000-4-2) - Ensures compliance with international ESD immunity requirements for handheld consumer devices. |
| Junction Capacitance | 6.5pF typical at 0V - Low enough to avoid signal degradation on 480 Mbps USB 2.0 or stereo audio paths. |
| Clamping Voltage | 11V at 4A TLP (0.2/100ns) - Limits voltage overshoot during fast ESD transients to protect downstream CMOS inputs. |
| Dynamic Resistance | 0.62Ω - Enables efficient energy shunting with minimal voltage rise under high-current ESD stress. |
| Package Size | SLP0402P2X4F (0.4 × 0.2 × 0.15 mm) - Fits 01005 footprint; allows placement directly at connector entry points without routing detours. |
Pinout & Package
The UCLAMP0541Z2ATKT is housed in a 2-pin SLP0402P2X4F surface-mount package with bottom-view pin configuration and NiAu lead finish. Nominal dimensions are 0.4 mm × 0.2 mm × 0.15 mm; land pattern follows IPC-compliant non-solder-mask-defined pads with 0.100 mm stencil thickness recommended.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | ESD current sink path to ground | Connected to protected line; conducts during positive ESD events to clamp voltage rise. |
| Cathode (Pin 2) | Reference node / ground return | Connected to system ground plane; completes low-inductance discharge path for both polarities via internal avalanche structure. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low capacitance | 6.5pF typical - Preserves signal edge rate and bandwidth on high-speed data lines without RC filtering. |
| Sub-12V ESD clamping | 11V at 4A TLP - Keeps protected IC input voltage below absolute maximum ratings during real-world ESD strikes. |
| 01005 footprint compatibility | SLP0402P2X4F package - Enables co-location with micro-B USB connectors and thin-bezel display flex cables. |
| Solid-state avalanche technology | No wear-out mechanism - Maintains consistent clamping performance over >100,000 ESD events without parameter drift. |
Applications
| Smartphone Side Keys | USB 2.0 Data Lines |
|---|---|
Use Scenario: ESD exposure on mechanical side buttons exposed to user finger contact in pocket or hand. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed in series between key switch and baseband processor GPIO. Use Value: 6.5pF capacitance avoids debounce timing distortion; ±15kV rating prevents latch-up in 28nm application processors. | Use Scenario: Direct electrostatic discharge into D+ and D− pins during cable insertion/removal. IC Role / Device Role / Timing Role: Line-specific ESD clamp mounted adjacent to USB receptacle, grounded to local shield plane. Use Value: 11V TLP clamping ensures D+/D− differential swing remains within USB 2.0 receiver common-mode range during 8kV contact discharge. |
| Headset Audio Jacks | Tablet PC Touchscreen Flex Interfaces |
Use Scenario: Repeated plug/unplug of 3.5mm TRRS headset causing triboelectric charging on mic/speaker lines. IC Role / Device Role / Timing Role: One UCLAMP0541Z2ATKT per audio channel (left/right/mic) referenced to analog ground. Use Value: 5V working voltage aligns with codec AVDD rails; low leakage (<25nA) prevents DC offset in bias-sensitive electret microphone circuits. | Use Scenario: ESD coupling from stylus or finger onto fine-pitch touchscreen controller flex traces. IC Role / Device Role / Timing Role: Discrete line protection on I²C or SPI control lines running from main SoC to touch controller IC. Use Value: 0.4 × 0.2 mm footprint fits within 0.5 mm pitch flex routing; 0.62Ω dynamic resistance minimizes IR drop during 16A TLP pulses. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPD1E05U06DPYR | 6.0pF capacitance, 12V clamping at 4A TLP, same 01005 SLP0402P2X4F package | Slightly higher clamping voltage; optimized for USB 2.0 but less margin for 1.8V I/O rails | Select when lower capacitance is prioritized over sub-12V clamping; verify VBR (6.2V min) suffices for 5V rail noise margin. |
| SMA6J5.0A | DO-214AC package (3.7 × 2.6 mm), 100pF capacitance, 14.4V clamping at 5A | Not suitable for high-density portable designs due to 90× larger footprint and excessive capacitance | Use only in industrial or legacy PCBs where space and speed are secondary to cost and availability. |
Compared with TPD1E05U06DPYR and SMA6J5.0A, the UCLAMP0541Z2ATKT provides the tightest combination of ultra-low capacitance, sub-12V TLP clamping, and true 01005 integration-making it optimal for next-generation compact mobile interfaces where signal fidelity and ESD margin are simultaneously constrained.
Availability
UCLAMP0541Z2ATKT is available at Aetrix Electronics and suitable for smartphone side keys, USB 2.0 data lines, and headset audio jacks requiring stable component supply across high-volume consumer electronics production.
Supply support for UCLAMP0541Z2ATKT 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
Semtech Corporation is a U.S.-based fabless semiconductor company specializing in high-performance analog and mixed-signal semiconductors for power management, protection, sensing, and wireless infrastructure.
The µClamp® product line, including the UCLAMP0541Z2ATKT, was engineered specifically for ultra-miniature ESD protection in space-constrained portable electronics-prioritizing low capacitance, fast response, and reliable clamping without degrading high-speed signal integrity.
FAQ
What is the maximum operating temperature range for the UCLAMP0541Z2ATKT?
The UCLAMP0541Z2ATKT supports a junction temperature range of –40°C to +125°C, verified per its Absolute Maximum Ratings table. This range enables deployment in battery-powered devices exposed to ambient extremes, such as smartphones left in vehicles or outdoor wearables. Thermal derating is not required up to +125°C, and the device maintains specified clamping performance across this full range. The UCLAMP0541Z2ATKT's silicon-avalanche structure ensures stable breakdown behavior without parametric shift under thermal cycling.
Does the UCLAMP0541Z2ATKT meet IEC 61000-4-2 Level 4 ESD requirements?
Yes, the UCLAMP0541Z2ATKT is rated for ±15kV contact and ±15kV air discharge per IEC 61000-4-2, satisfying Level 4-the highest severity level defined in the standard. Test methodology follows Semtech's documented setup: 20dB attenuator, 50Ω scope input impedance, 2GHz bandwidth, and ESD gun return path connected to ground plane. This rating applies directly to the UCLAMP0541Z2ATKT device as characterized in Rev 4.1 of its official datasheet.
Can the UCLAMP0541Z2ATKT be used on bidirectional signal lines like I²C?
The UCLAMP0541Z2ATKT is a unidirectional TVS diode intended for 5V single-ended lines referenced to ground, not inherently bidirectional interfaces. For I²C, which uses open-drain pull-ups and bidirectional signaling, a bidirectional variant such as UCLAMP0551Z2ATKT (dual-line, symmetric clamping) is recommended. Using the UCLAMP0541Z2ATKT on I²C may cause unintended conduction during high-to-low transitions if the line voltage drops below ground reference, risking bus contention or logic errors.
What is the typical leakage current of the UCLAMP0541Z2ATKT at its working voltage?
The UCLAMP0541Z2ATKT exhibits a typical reverse leakage current of 5nA at VRWM = 5V and 25°C, with a maximum of 25nA across its operating temperature range. This ultra-low leakage prevents measurable loading on high-impedance nodes such as microphone bias circuits or capacitive touch sense lines. The value is measured under steady-state DC conditions and remains stable over time, as confirmed by accelerated life testing in Semtech's qualification report for the µClamp® family.
Is the UCLAMP0541Z2ATKT RoHS and halogen-free compliant?
Yes, the UCLAMP0541Z2ATKT is Pb-free, halogen-free, and fully compliant with RoHS and WEEE directives, as stated in its Mechanical Characteristics section. Lead finish is NiAu, and all materials meet Semtech's green manufacturing standards. Compliance documentation-including test reports for bromine, chlorine, and heavy metals-is available upon request through Aetrix Electronics' technical support team for the UCLAMP0541Z2ATKT.
UCLAMP0541Z2ATKT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- 2-XFDFN
- Series:
- uClamp®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 5V (Max)
- Voltage - Breakdown (Min):
- 6.5V
- Voltage - Clamping (Max) @ Ipp:
- 15V
- Current - Peak Pulse (10/1000µs):
- 2A (8/20µs)
- Power - Peak Pulse:
- 30W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 6.5pF @ 1MHz
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SLP0402P2X4F
UCLAMP0541Z2ATKT FAQ
1.How can I place an order for UCLAMP0541Z2ATKT through Aetrix?
Please submit a Request for Quotation (RFQ) for UCLAMP0541Z2ATKT 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 UCLAMP0541Z2ATKT reliable?
The price and inventory of UCLAMP0541Z2ATKT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UCLAMP0541Z2ATKT is usually 5 days.
3.What payment methods are accepted for UCLAMP0541Z2ATKT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UCLAMP0541Z2ATKT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UCLAMP0541Z2ATKT?
UCLAMP0541Z2ATKT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UCLAMP0541Z2ATKT 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 UCLAMP0541Z2ATKT?
For technical support, including UCLAMP0541Z2ATKT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UCLAMP0541Z2ATKT requirements.
6.How does Aetrix verify that UCLAMP0541Z2ATKT is sourced from the original manufacturer or authorized distributors?
All UCLAMP0541Z2ATKT 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 UCLAMP0541Z2ATKT meets industry standards.
7.What is the process for return or replacement of UCLAMP0541Z2ATKT?
All UCLAMP0541Z2ATKT units undergo pre-shipment inspection (PSI). If there is an issue with UCLAMP0541Z2ATKT, 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 UCLAMP0541Z2ATKT part is unused and in its original packaging.
Return procedure for UCLAMP0541Z2ATKT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
UCLAMP0541Z2ATKT Tags
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