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Semtech Corporation UCLAMP0555T.TNT
- Part No.:
- UCLAMP0555T.TNT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 6-XFDFN
- Datasheet:
-
UCLAMP0555T.TNT.pdf
- Description:
- TVS DIODE 5VWM 15VC SLP1007N6T
- Quantity:
- Payment:
- Shipping:
Inventory:7,798
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Product details
Overview
UCLAMP0555T.TNT from Semtech is a transient diverting suppressor (TDS) designed for high-energy EOS/ESD protection of 5V I/O or power lines in USB, industrial, and IoT interfaces. It delivers ±30kV IEC 61000-4-2 ESD immunity, clamps at 7.5V (IPP = 24A), maintains <20mΩ dynamic resistance, and operates from –40°C to +125°C in a 1.6 × 1.6 mm DFN-6 package.
For engineers reviewing the UCLAMP0555T.TNT datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage stability across temperature and peak pulse current, low junction capacitance (12pF), and compatibility with USB 2.0, HDMI, and industrial control signal lines requiring robust 5V-level surge suppression.
Technical Context
The UCLAMP0555T.TNT uses a precision-triggered shunt FET architecture instead of conventional PN-junction TVS diodes, enabling near-constant clamping voltage (7.5V) across its full 24A rated peak pulse current range and –40°C to +125°C operating temperature. Its trigger circuit activates the low-RDS(on) FET only during transients, minimizing leakage and capacitive loading during normal operation.
Unlike standard TVS devices whose clamping voltage rises linearly with IPP and temperature (VC = VBR + IPP × RDYN), the UCLAMP0555T.TNT's clamping remains stable due to the FET's decreasing on-resistance under surge conditions - delivering predictable protection for sensitive 5V logic, USB PHYs, and microcontroller I/O pins without derating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 5V - matches standard USB 2.0, HDMI, and industrial control I/O rail voltages without overvoltage risk during steady-state operation. |
| Clamping Voltage (IPP = 24A) | 7.5V - ensures protected ICs (e.g., USB transceivers, MCU GPIOs) remain below absolute maximum ratings during 8/20μs surges. |
| Junction Capacitance | 12pF @ 0V - low enough to avoid signal integrity degradation on 480 Mbps USB 2.0 or 100 MHz industrial data lines. |
| ESD Withstand | ±30kV contact & air per IEC 61000-4-2 - exceeds Level 4 requirements for consumer and industrial end-equipment certification. |
| Peak Pulse Current | 24A (8/20μs) - supports compliance with IEC 61000-4-5 Level 3 (±1kV, RS = 42Ω) on unsymmetrical lines. |
| Dynamic Resistance | 18mΩ - enables minimal voltage rise under surge, critical for maintaining tight clamping margin on 5V systems. |
| Leakage Current | 100nA @ VRWM - negligible power loss and no impact on battery-powered or low-power sensor node standby current. |
Pinout & Package
UCLAMP0555T.TNT is housed in a Pb-free, RoHS-compliant 1.6 mm × 1.6 mm × 0.55 mm DFN-6 package with wettable flank terminations. The package features three input pins (4, 5, 6) tied together internally for parallel surge handling and three ground pins (1, 2, 3) for low-inductance return path - all must be soldered for rated 24A performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Low-inductance ground return; all three pins must be connected to PCB ground plane via multiple vias to sustain 24A surge current without thermal failure. |
| 4, 5, 6 | IN | Parallel-connected surge input; connects directly to protected line (e.g., USB D+, D−, or VBUS); internal FET shunts transients to GND when triggered. |
Key Features
| Feature | Design Value |
|---|---|
| FET-based transient diversion | Replaces traditional TVS diodes with a low-RDS(on) shunt FET, eliminating voltage-dependent clamping drift and enabling stable 7.5V protection across temperature and current. |
| Ultra-low dynamic resistance | 18mΩ ensures minimal IR drop during 24A surges - critical for preserving clamping margin on 5V rails where headroom is limited to ~2.5V. |
| 12pF junction capacitance | Enables use on high-speed 480 Mbps USB 2.0 differential pairs without measurable eye diagram degradation or timing skew. |
| ±30kV ESD robustness | Meets and exceeds IEC 61000-4-2 Level 4 for both contact and air discharge - suitable for handheld, field-deployable, and unattended industrial equipment. |
| –40°C to +125°C operation | Validated performance across full automotive-grade temperature range, supporting deployment in engine control modules, motor drives, and outdoor IoT gateways. |
Applications
| USB 2.0 Data Line Protection | HDMI DDC/CEC Channel Protection |
|---|---|
|
Use Scenario: Protecting USB 2.0 D+ and D− lines against ESD events during cable insertion and lightning-induced surges in docking stations and peripherals. IC Role / Device Role / Timing Role: Shunt-based transient suppressor placed immediately after the USB connector, clamping fast-rising ESD (15kV+) before it reaches the USB transceiver PHY. Use Value: 12pF capacitance avoids signal integrity loss at 480 Mbps; 7.5V clamping prevents damage to 5V-tolerant PHY inputs while maintaining USB electrical compliance. |
Use Scenario: Securing HDMI DDC (I²C) and CEC control channels against ESD in AV receivers, monitors, and set-top boxes exposed to user-handled cables. IC Role / Device Role / Timing Role: Low-capacitance protector on bidirectional 3.3V/5V I²C lines, activated only during transients to avoid DC loading or clock stretching. Use Value: 100nA leakage preserves I²C pull-up efficiency; ±30kV ESD rating ensures reliability in retail and home-install environments with frequent cable swaps. |
| Industrial Sensor Interface Protection | USB-C CC Line Protection |
|
Use Scenario: Shielding analog and digital sensor outputs (e.g., 4–20mA loop, RS-485, or SPI) from EOS in factory automation and remote metering nodes. IC Role / Device Role / Timing Role: Standoff-rated protector on 5V-sensed signal paths, absorbing 24A surges induced by nearby motor switching or lightning coupling. Use Value: Stable 7.5V clamping prevents latch-up in downstream ADCs or isolators; 125°C rating supports operation inside enclosures with elevated ambient temperatures. |
Use Scenario: Safeguarding USB-C Configuration Channel (CC) pins against ESD during plug insertion and hot-plug events in portable chargers and PD adapters. IC Role / Device Role / Timing Role: Dedicated 5V-rated suppressor on CC1/CC2 lines, placed before the CC controller to prevent false detection or port disablement. Use Value: Matches USB-C spec's 5V CC bus voltage; 12pF capacitance avoids interference with 300kHz CC signaling; ±30kV rating covers worst-case human-body-model exposure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SP1003-050 | Higher clamping voltage (12V @ 24A), higher capacitance (25pF), same DFN-6 package. | Less suitable for 5V high-speed lines due to signal distortion risk; better for lower-speed 5V power rails. | Select UCLAMP0555T.TNT when protecting USB 2.0 or HDMI DDC where <15pF and sub-8V clamping are mandatory. |
| TPD4E001DPYR | Lower ESD rating (±12kV), higher leakage (1μA), quad-channel array vs. single-line device. | Designed for multi-line protection (e.g., four USB lines); not optimized for single-line 24A surge handling. | Choose UCLAMP0555T.TNT for discrete, high-current 5V line protection where ESD robustness and clamping precision outweigh channel count needs. |
Compared with SP1003-050 and TPD4E001DPYR, UCLAMP0555T.TNT uniquely combines ±30kV ESD immunity, 7.5V clamping at 24A, and 12pF capacitance in a single-line DFN-6 - making it the preferred choice for space-constrained, high-reliability 5V interface protection where signal fidelity and precise voltage limiting are non-negotiable.
Availability
UCLAMP0555T.TNT is available at Aetrix Electronics and suitable for USB 2.0 interface protection, industrial sensor signal conditioning, and USB-C CC line safeguarding requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for UCLAMP0555T.TNT 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, and signal integrity.
The UCLAMP series targets high-reliability transient suppression for 3.3V–24V interfaces, emphasizing stable clamping, ultra-low capacitance, and extended temperature operation for industrial, computing, and consumer electronics.
FAQ
What is the maximum clamping voltage of UCLAMP0555T.TNT at 24A surge current?
The UCLAMP0555T.TNT clamps at 7.5V when subjected to a 24A (8/20μs) peak pulse current, as specified in its official datasheet. This value remains stable across –40°C to +125°C and is guaranteed by design - unlike conventional TVS diodes whose clamping voltage increases with current and temperature. The 7.5V clamping ensures safe operation for 5V-tolerant ICs protected by UCLAMP0555T.TNT.
Does UCLAMP0555T.TNT support IEC 61000-4-5 surge testing?
Yes, UCLAMP0555T.TNT is rated for 24A peak pulse current under IEC 61000-4-5 8/20μs waveform conditions, enabling compliance with Level 3 (±1kV, RS = 42Ω) surge immunity for unsymmetrical lines. Its low dynamic resistance (18mΩ) and FET-based architecture ensure consistent energy diversion without thermal runaway - a key advantage confirmed in Semtech's application notes for industrial and USB-C applications using UCLAMP0555T.TNT.
Can UCLAMP0555T.TNT be used on USB 2.0 high-speed differential pairs?
Yes, UCLAMP0555T.TNT is specifically suited for USB 2.0 D+ and D− lines due to its 12pF junction capacitance at 0V, which introduces negligible signal distortion at 480 Mbps. Its matched pin configuration (three IN pins, three GND pins) allows symmetrical layout placement adjacent to the connector, and its 7.5V clamping protects 5V-tolerant PHYs without violating USB electrical specifications - a capability validated in Semtech reference designs for UCLAMP0555T.TNT.
What is the operating temperature range of UCLAMP0555T.TNT?
UCLAMP0555T.TNT operates reliably from –40°C to +125°C, with clamping voltage and leakage current fully characterized across this range. Its FET-based architecture eliminates the temperature-dependent VBR drift seen in standard TVS diodes, ensuring consistent 7.5V protection at 24A even at maximum junction temperature - a feature critical for under-hood automotive modules, industrial motor drives, and outdoor IoT hardware using UCLAMP0555T.TNT.
How does UCLAMP0555T.TNT differ from traditional TVS diodes in protection behavior?
UCLAMP0555T.TNT uses a precision-triggered shunt FET instead of a PN junction, resulting in near-constant 7.5V clamping across its full 24A surge range and entire –40°C to +125°C temperature span. Traditional TVS diodes exhibit rising clamping voltage with increasing current (VC = VBR + IPP × RDYN) and temperature - a limitation that UCLAMP0555T.TNT overcomes by leveraging the FET's decreasing RDS(on) under surge, as documented in Semtech's TDS family white papers and UCLAMP0555T.TNT datasheet.
UCLAMP0555T.TNT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- 6-XFDFN
- Series:
- uClamp®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 5
- Voltage - Reverse Standoff (Typ):
- 5V (Max)
- Voltage - Breakdown (Min):
- 6V
- 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:
- 7pF @ 1MHz
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SLP1007N6T
UCLAMP0555T.TNT FAQ
1.How can I place an order for UCLAMP0555T.TNT through Aetrix?
Please submit a Request for Quotation (RFQ) for UCLAMP0555T.TNT 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 UCLAMP0555T.TNT reliable?
The price and inventory of UCLAMP0555T.TNT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UCLAMP0555T.TNT is usually 5 days.
3.What payment methods are accepted for UCLAMP0555T.TNT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UCLAMP0555T.TNT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UCLAMP0555T.TNT?
UCLAMP0555T.TNT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UCLAMP0555T.TNT 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 UCLAMP0555T.TNT?
For technical support, including UCLAMP0555T.TNT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UCLAMP0555T.TNT requirements.
6.How does Aetrix verify that UCLAMP0555T.TNT is sourced from the original manufacturer or authorized distributors?
All UCLAMP0555T.TNT 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 UCLAMP0555T.TNT meets industry standards.
7.What is the process for return or replacement of UCLAMP0555T.TNT?
All UCLAMP0555T.TNT units undergo pre-shipment inspection (PSI). If there is an issue with UCLAMP0555T.TNT, 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 UCLAMP0555T.TNT part is unused and in its original packaging.
Return procedure for UCLAMP0555T.TNT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
UCLAMP0555T.TNT Tags
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