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Semtech Corporation UCLAMP0511Z.TFT
- Part No.:
- UCLAMP0511Z.TFT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 0201 (0603 Metric)
- Datasheet:
-
UCLAMP0511Z.TFT.pdf
- Description:
- 1-LINE 5V 4PF IN BI SLP0603P2X3
- Quantity:
- Payment:
- Shipping:
Inventory:15,000
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Product details
Overview
UCLAMP0511Z.TFT from Semtech is a unidirectional TVS diode designed for board-level ESD protection of single 5V data or power lines. It delivers ±15kV air-gap and ±8kV contact ESD immunity per IEC 61000-4-2, features 0.64 Ω dynamic resistance (typ), 4–7 pF junction capacitance, and operates in an ultra-small SLP0603P2X3 (0.6 × 0.3 × 0.25 mm) package-ideal for space-constrained portable electronics.
For engineers reviewing the UCLAMP0511Z.TFT datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage at 1A (15 V), ESD strike endurance (>1000 Level 4 events), reverse stand-off voltage (5 V), low leakage (<10 nA @ 5 V), and compatibility with high-speed digital interfaces requiring minimal signal distortion.
Technical Context
The UCLAMP0511Z.TFT employs silicon-avalanche solid-state technology to achieve fast response time and stable clamping under transient stress. Its bidirectional conduction path (Pin 1 ↔ Pin 2) supports symmetric ESD surge handling without polarity dependence, while the low 0.64 Ω dynamic resistance ensures minimal voltage overshoot during 4–16 A TLP pulses.
Designed for 5V systems, it maintains a tight reverse breakdown range (6–9.5 V) and clamps to 11.2 V at 4A ESD pulse (0.2/100 ns), rising to 19.4 V at 16A-enabling robust protection margin above 5V working voltage while preserving downstream IC integrity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ESD Rating (IEC 61000-4-2) | ±15 kV air, ±8 kV contact - meets Level 4 system-level ESD immunity requirements |
| Working Voltage (VRWM) | 5 V - matches standard USB, audio, and I²C interface supply rails |
| Clamping Voltage (VC) | 15 V @ 1A (8/20 μs); 11.2 V @ 4A (0.2/100 ns) - limits transient overvoltage below IC damage thresholds |
| Junction Capacitance (CJ) | 4–7 pF @ 0 V, 1 MHz - preserves signal integrity on high-speed lines (e.g., USB 2.0, audio codecs) |
| Dynamic Resistance (RDYN) | 0.64 Ω (typ) - minimizes IR drop during ESD event, improving clamping precision |
| Leakage Current (IR) | <10 nA @ 5 V - avoids DC loading on battery-powered sensor or keypad circuits |
| Package Dimensions | 0.6 × 0.3 × 0.25 mm - enables placement adjacent to connectors or buttons in slim mobile designs |
Pinout & Package
UCLAMP0511Z.TFT is housed in a 2-pin SLP0603P2X3 package with NiAu lead finish, RoHS-compliant, and tape-and-reel packaged (15,000 pcs/reel). The device has no polarity marking; both terminals are electrically symmetrical for bidirectional ESD suppression.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode/Cathode (symmetrical) | Interchangeable terminal for bidirectional ESD current path; connects to protected line |
| Pin 2 | Anode/Cathode (symmetrical) | Interchangeable terminal; connects to ground or reference plane for low-inductance return path |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small footprint | 0.6 × 0.3 mm land pattern - fits within tight spacing near micro-USB, SIM, or audio jack PCB cutouts |
| High ESD endurance | Survives >1000 IEC 61000-4-2 Level 4 strikes - ensures long-term reliability in field-deployed handheld devices |
| Low clamping at high current | 11.2 V clamping at 4A TLP - protects 5V logic inputs without triggering latch-up in companion ICs |
| Minimal signal loading | 4–7 pF capacitance - avoids timing skew or attenuation on 48 MHz USB 2.0 differential pairs |
| Lead-free & halogen-free | NiAu termination, RoHS/WEEE compliant - satisfies global environmental compliance and solderability requirements |
Applications
| Smartphone Keypad Protection | USB 2.0 Data Line Protection |
|---|---|
Use Scenario: ESD discharge from user finger contact on mechanical side keys or volume buttons in smartphones. IC Role / Device Role / Timing Role: Standalone bidirectional TVS diode placed directly at button trace entry point to PCB ground plane. Use Value: Prevents false keypresses, MCU reset, or GPIO latch-up by clamping transients to ≤11.2 V before reaching baseband processor GPIOs. | Use Scenario: Electrostatic discharge entering via micro-USB connector during cable insertion/removal. IC Role / Device Role / Timing Role: Line-to-ground TVS on D+ and D− traces, one UCLAMP0511Z.TFT per line. Use Value: Maintains <7 pF capacitance to avoid USB 2.0 eye diagram degradation while suppressing ±8 kV contact ESD per IEC 61000-4-2. |
| Portable Audio Jack Protection | Digital Camera Button Interface |
Use Scenario: ESD events on 3.5 mm TRRS headset jacks during plug insertion or pocket friction. IC Role / Device Role / Timing Role: Single-line protection between jack sleeve/contact and codec input pins. Use Value: Blocks transients up to ±15 kV air discharge without adding audible pop/noise due to low leakage (<10 nA) and fast response. | Use Scenario: Static discharge from user touch on mode/select buttons of compact digital cameras. IC Role / Device Role / Timing Role: Point-of-entry protection on button switch traces routed to image sensor controller or SoC GPIO. Use Value: Enables use of 0201-sized protection without sacrificing ESD margin-critical where board area is constrained by lens module layout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPD1E05U06DPYR | Lower clamping (9.5 V @ 4A), higher capacitance (10 pF), same SOD-523 package | Better for ultra-low-voltage logic (≤3.3 V), less suitable for 5V USB due to higher CJ | Select when protecting sub-3.3V interfaces where tighter clamping outweighs capacitance penalty |
| SMAJ5.0A | DO-214AC package (4.5 × 2.7 mm), 5.0 V VRWM, 15.4 V VC @ 10A, 100 pF CJ | For industrial panels or non-portable gear where size is secondary to surge energy handling | Choose only when PCB space allows larger package and higher capacitance is acceptable |
Compared with TPD1E05U06DPYR and SMAJ5.0A, UCLAMP0511Z.TFT uniquely balances sub-millimeter size, 5V system compatibility, <7 pF capacitance, and ±15kV ESD rating-making it optimal for modern smartphone, tablet, and wearable front-panel I/O protection where board area and signal fidelity are critical.
Availability
UCLAMP0511Z.TFT is available at Aetrix Electronics and suitable for cellular handsets, portable instrumentation, and digital audio accessories requiring stable component supply, consistent tape-and-reel packaging (15,000 pcs/reel), and full RoHS/WEEE compliance.
Supply support for UCLAMP0511Z.TFT 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 analog and mixed-signal ICs for precision sensing, power management, and protection.
The μClamp® product line was developed specifically for ultra-compact, high-fidelity ESD protection in portable consumer electronics-prioritizing minimal capacitance, repeatable clamping, and 0201-scale integration without performance trade-offs.
FAQ
What is the maximum clamping voltage of UCLAMP0511Z.TFT under IEC 61000-4-2 ESD stress?
The UCLAMP0511Z.TFT clamps to 11.2 V at 4A (0.2/100 ns waveform), per TLP testing, and reaches 19.4 V at 16A. Under standardized IEC 61000-4-2 contact discharge (±8 kV), measured clamping remains below 15 V with proper PCB layout-ensuring safe operation for 5V logic interfaces. This value is confirmed in the Rev 5.0 datasheet, page 2.
Can UCLAMP0511Z.TFT be used to protect bidirectional data lines like I²C?
Yes, UCLAMP0511Z.TFT is inherently bidirectional due to its symmetrical pin configuration and avalanche structure. It provides equal ESD protection in both directions without polarity constraints, making it suitable for I²C, UART, or other open-drain/bidirectional 5V interfaces-provided total line capacitance (including PCB trace and IC input) stays within timing budget.
What is the recommended PCB land pattern for UCLAMP0511Z.TFT?
Semtech specifies a non-solder-mask-defined land pattern for UCLAMP0511Z.TFT per IPC standards, with dimensions matching the SLP0603P2X3 outline: 0.270 × 0.250 mm pads, 0.175 mm solder mask opening, and 0.100 mm stencil thickness. The recommended aperture uses rounded corners and an area ratio of 0.70–0.75 to ensure reliable solder joint formation.
Does UCLAMP0511Z.TFT require derating at elevated ambient temperatures?
Yes-while UCLAMP0511Z.TFT operates from −55°C to +125°C, its clamping voltage increases slightly with junction temperature. At +85°C, typical clamping rises ~5% versus 25°C values. Designers should verify system-level ESD margin across the full operating range, especially in thermally dense smartphone modules where local PCB temperature may exceed 70°C.
Is UCLAMP0511Z.TFT compatible with lead-free reflow profiles?
Yes, UCLAMP0511Z.TFT is qualified per JEDEC J-STD-020 and supports standard lead-free reflow profiles with peak temperatures up to 260°C. Its NiAu termination ensures robust wetting and intermetallic formation. The device must be stored per MSL-1 requirements and used within 12 months of seal opening to maintain solderability and ESD performance integrity.
UCLAMP0511Z.TFT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- 0201 (0603 Metric)
- Series:
- µClamp®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 5V (Max)
- Voltage - Breakdown (Min):
- 6V
- Voltage - Clamping (Max) @ Ipp:
- 15V
- Current - Peak Pulse (10/1000µs):
- 1A (8/20µs)
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 4pF @ 1MHz
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SLP0603P2X3
UCLAMP0511Z.TFT FAQ
1.How can I place an order for UCLAMP0511Z.TFT through Aetrix?
Please submit a Request for Quotation (RFQ) for UCLAMP0511Z.TFT 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 UCLAMP0511Z.TFT reliable?
The price and inventory of UCLAMP0511Z.TFT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UCLAMP0511Z.TFT is usually 5 days.
3.What payment methods are accepted for UCLAMP0511Z.TFT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UCLAMP0511Z.TFT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UCLAMP0511Z.TFT?
UCLAMP0511Z.TFT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UCLAMP0511Z.TFT 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 UCLAMP0511Z.TFT?
For technical support, including UCLAMP0511Z.TFT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UCLAMP0511Z.TFT requirements.
6.How does Aetrix verify that UCLAMP0511Z.TFT is sourced from the original manufacturer or authorized distributors?
All UCLAMP0511Z.TFT 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 UCLAMP0511Z.TFT meets industry standards.
7.What is the process for return or replacement of UCLAMP0511Z.TFT?
All UCLAMP0511Z.TFT units undergo pre-shipment inspection (PSI). If there is an issue with UCLAMP0511Z.TFT, 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 UCLAMP0511Z.TFT part is unused and in its original packaging.
Return procedure for UCLAMP0511Z.TFT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
UCLAMP0511Z.TFT Tags
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