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Semtech Corporation UCLAMP0501Z.TFT
- Part No.:
- UCLAMP0501Z.TFT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 0201 (0603 Metric)
- Datasheet:
-
UCLAMP0501Z.TFT.pdf
- Description:
- 1-LINE 5V UNI 10PF IN SLP0603P2X
- Quantity:
- Payment:
- Shipping:
Inventory:15,000
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Product details
Overview
UCLAMP0501Z.TFT from Semtech is a single-line 5V ESD protection TVS diode in SLP0603P2X3 package (0.6 × 0.3 × 0.25 mm), featuring 10 pF max capacitance, ±15 kV air/±8 kV contact IEC 61000-4-2 compliance, and 11 V ESD clamping at +4 A TLP. It protects USB, HDMI, or SDIO data lines in portable electronics.
For engineers reviewing the UCLAMP0501Z.TFT datasheet, pinout, applications, or equivalent options, key selection criteria include low dynamic resistance (0.9 Ω), sub-12 V clamping under 1 A 8/20 µs surge, and compatibility with high-speed interfaces requiring <10 pF loading.
Technical Context
This device uses silicon-avalanche TVS technology optimized for board-level ESD suppression on +5 V rails. Its ultra-low 0.9 Ω dynamic resistance and fast response enable effective clamping before downstream IC latch-up occurs.
Designed specifically for single-line protection, it replaces MLVs in space-constrained layouts without sacrificing surge capability-delivering 12 W peak pulse power (8/20 µs) and validated ±15 kV air-gap ESD robustness per IEC 61000-4-2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 5 V - matches standard USB/SDIO/HDMI I/O supply rails |
| ESD Clamping Voltage | 11 V at +4 A TLP - limits transient voltage below 12 V to protect 5 V logic inputs |
| Junction Capacitance | 10 pF max at 1 MHz, 0 V - preserves signal integrity on >100 Mbps data lines |
| Dynamic Resistance | 0.9 Ω - ensures low-voltage overshoot during fast ESD events |
| IEC 61000-4-2 Rating | ±15 kV air, ±8 kV contact - exceeds industrial and consumer immunity requirements |
| Package Dimensions | 0.6 × 0.3 × 0.25 mm - fits 0201 footprint with minimal PCB area |
| Leakage Current | 50 nA max at 5 V - avoids DC loading on battery-powered sensor lines |
Pinout & Package
UCLAMP0501Z.TFT is housed in a 2-pin SLP0603P2X3 package (0.6 mm × 0.3 mm × 0.25 mm), lead-finished with NiAu, and marked with dot-and-bar orientation (bar indicates Pin 1).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode | Connected to protected I/O line; current flows into this terminal during positive transients |
| Pin 2 | Cathode | Connected to system ground; provides low-impedance path for ESD current discharge |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small footprint | 0.6 × 0.3 mm - enables placement directly at connector or IC pad without routing detours |
| Low clamping voltage | 11 V at +4 A TLP - maintains safe margin below 12 V absolute maximum ratings of common 5 V interface ICs |
| Low capacitance | 10 pF max - supports USB 2.0 (480 Mbps), SDIO, and I²C without signal degradation |
| Solid-state avalanche structure | No wear-out mechanism - retains ESD performance over >1000 strikes without parameter drift |
| Pb-free & RoHS compliant | NiAu finish and halogen-free construction - meets IPC-J-STD-020 reflow and environmental compliance |
Applications
| USB 2.0 Data Lines | HDMI DDC/CEC Lines |
|---|---|
Use Scenario: Protecting differential USB 2.0 D+ and D− lines against ESD during cable insertion or handling. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed between connector and USB transceiver, operating at 5 V DC bias. Use Value: 10 pF capacitance avoids eye diagram distortion; 11 V clamping prevents damage to PHY input stages rated ≤12 V. | Use Scenario: Shielding HDMI DDC (I²C) and CEC control lines from user-touch ESD in home entertainment systems. IC Role / Device Role / Timing Role: Unidirectional clamp on each line referenced to 5 V rail and chassis ground. Use Value: Sub-12 V clamping preserves I²C timing margins; 50 nA leakage avoids pull-up current errors on 4.7 kΩ bus resistors. |
| SD Card Interface | Smartphone Front-Facing Camera Bus |
Use Scenario: Safeguarding SDIO command, clock, and data lines in handheld devices exposed to frequent card insertion/removal. IC Role / Device Role / Timing Role: One UCLAMP0501Z.TFT per line, anode to signal, cathode to ground, operating at 3.3 V or 5 V. Use Value: 0.6 mm × 0.3 mm size allows discrete placement per line without array redundancy; ±15 kV air rating covers worst-case handling. | Use Scenario: Protecting MIPI CSI-2 clock and data lanes between image sensor and application processor in thin bezel smartphones. IC Role / Device Role / Timing Role: Low-capacitance TVS on each lane, placed adjacent to sensor connector to minimize stub length. Use Value: 10 pF max capacitance prevents skew between differential pairs; 0.25 mm height avoids interference with flex cable stacking. |
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 V working voltage, 12 pF max capacitance, same SOD-523 package | Better suited for 3.3 V systems; higher capacitance limits use on >200 Mbps links | Select when protecting 3.3 V GPIO or UART lines where tighter VRWM tolerance is required |
| SMAJ5.0A | DO-214AC package (4.5 × 2.7 mm), 5 V VRWM, 150 pF capacitance | Too large and capacitive for high-speed data lines; appropriate only for DC power rail protection | Choose only for non-signal applications such as 5 V VBUS line clamping where size and capacitance are not critical |
Compared with TPD1E05U06DPYR and SMAJ5.0A, UCLAMP0501Z.TFT uniquely balances 5 V operation, 10 pF capacitance, and 0.6 × 0.3 mm footprint-making it the only option qualified for space-constrained, high-speed 5 V data line protection without compromising ESD immunity or signal fidelity.
Availability
UCLAMP0501Z.TFT is available at Aetrix Electronics and suitable for USB 2.0 interface protection, HDMI control channel safeguarding, and SDIO-based memory expansion requiring stable component supply across high-volume portable electronics production.
Supply support for UCLAMP0501Z.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 semiconductor company specializing in analog and mixed-signal ICs for precision sensing, power management, and protection.
The µClamp® product line delivers ultra-compact, high-performance TVS diodes engineered for ESD robustness in portable and wearable electronics with strict size and signal-integrity constraints.
FAQ
What is the maximum junction capacitance of UCLAMP0501Z.TFT, and why does it matter for high-speed interfaces?
The maximum junction capacitance of UCLAMP0501Z.TFT is 10 pF at 1 MHz and 0 V reverse bias. This low value minimizes signal distortion and timing skew on high-speed digital buses like USB 2.0 and SDIO. Exceeding 10 pF risks degrading eye diagrams and violating setup/hold timing margins-UCLAMP0501Z.TFT's 10 pF spec ensures reliable operation up to 480 Mbps without requiring layout compensation.
Does UCLAMP0501Z.TFT meet IEC 61000-4-2 Level 4 ESD requirements?
Yes, UCLAMP0501Z.TFT is rated for ±15 kV air discharge and ±8 kV contact discharge per IEC 61000-4-2, exceeding Level 4 (±8 kV contact / ±15 kV air). These values were verified using a calibrated ESD gun with 20 dB attenuator and 50 Ω scope input impedance per test note 1 in the official Semtech datasheet. UCLAMP0501Z.TFT consistently clamps below 12 V during these events.
Can UCLAMP0501Z.TFT be used to protect 3.3 V logic lines?
UCLAMP0501Z.TFT has a 5 V working voltage (VRWM) and 6.5–9 V breakdown range, making it unsuitable for direct 3.3 V rail protection due to risk of leakage or premature conduction. For 3.3 V systems, consider Semtech's UCLAMP0301H.TFT (3.3 V VRWM) or TPD1E05U06DPYR. UCLAMP0501Z.TFT must only be applied where the protected line operates at nominal 5 V with sufficient margin above VRWM.
What is the thermal resistance and power derating behavior of UCLAMP0501Z.TFT?
UCLAMP0501Z.TFT has no published RθJA due to its ultra-small SLP0603P2X3 package, but its 12 W peak pulse power (8/20 µs) is valid at TJ = 25 °C. Derating follows JEDEC J-STD-020: maximum operating temperature is +125 °C, and pulse power must be reduced linearly above 70 °C ambient. At +105 °C, peak power drops to ~8 W. UCLAMP0501Z.TFT's solid-state design avoids thermal runaway during repeated ESD events.
How is polarity identified on the UCLAMP0501Z.TFT package, and what happens if installed backward?
UCLAMP0501Z.TFT uses a bar marking on the package body to indicate Pin 1 (anode); the dot marks the date code. Installing it backward (cathode to signal, anode to ground) renders it nonfunctional for positive transients and may allow damaging voltage to reach downstream ICs. The device conducts only when anode voltage exceeds cathode by ≥6.5 V-correct orientation is essential for bidirectional ESD protection on 5 V lines.
UCLAMP0501Z.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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5V (Max)
- Voltage - Breakdown (Min):
- 6.5V
- Voltage - Clamping (Max) @ Ipp:
- 12V
- Current - Peak Pulse (10/1000µs):
- 1A (8/20µs)
- Power - Peak Pulse:
- 12W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 8pF @ 1MHz
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SLP0603P2X3
UCLAMP0501Z.TFT FAQ
1.How can I place an order for UCLAMP0501Z.TFT through Aetrix?
Please submit a Request for Quotation (RFQ) for UCLAMP0501Z.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 UCLAMP0501Z.TFT reliable?
The price and inventory of UCLAMP0501Z.TFT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UCLAMP0501Z.TFT is usually 5 days.
3.What payment methods are accepted for UCLAMP0501Z.TFT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UCLAMP0501Z.TFT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UCLAMP0501Z.TFT?
UCLAMP0501Z.TFT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UCLAMP0501Z.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 UCLAMP0501Z.TFT?
For technical support, including UCLAMP0501Z.TFT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UCLAMP0501Z.TFT requirements.
6.How does Aetrix verify that UCLAMP0501Z.TFT is sourced from the original manufacturer or authorized distributors?
All UCLAMP0501Z.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 UCLAMP0501Z.TFT meets industry standards.
7.What is the process for return or replacement of UCLAMP0501Z.TFT?
All UCLAMP0501Z.TFT units undergo pre-shipment inspection (PSI). If there is an issue with UCLAMP0501Z.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 UCLAMP0501Z.TFT part is unused and in its original packaging.
Return procedure for UCLAMP0501Z.TFT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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