Semtech Corporation UCLAMP0552T.TNT
- Part No.:
- UCLAMP0552T.TNT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 3-XDFN
- Datasheet:
-
UCLAMP0552T.TNT.pdf
- Description:
- TVS DIODE 5VWM 15VC SLP1006N3T
- Quantity:
- Payment:

- Shipping:

Inventory:2,218
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Product details
Overview
UCLAMP0552T.TNT from Semtech is a bidirectional 2-line ESD protection diode in SLP1006N3T package, rated for ±5 V working voltage, with ±17 kV IEC 61000-4-2 contact ESD immunity, <9 pF junction capacitance at 0 V, 0.55 Ω dynamic resistance, and <5 nA reverse leakage at 5 V. It protects high-speed digital lines in space-constrained portable electronics.
For engineers reviewing the UCLAMP0552T.TNT datasheet, pinout, applications, or equivalent options, key selection criteria include low clamping voltage (15 V @ 2 A), minimal PCB footprint (0.6 mm²), dual-line protection capability, and compatibility with automated SMT assembly for audio ports, LCD connectors, and side-key interfaces.
Technical Context
The UCLAMP0552T.TNT employs silicon-avalanche TVS technology optimized for board-level ESD suppression in high-frequency signal paths. Its symmetrical bidirectional structure enables flexible grounding-any of its three terminals may serve as GND while the other two protect differential or single-ended data lines up to 5 V.
Designed specifically for IEC 61000-4-2 compliance, it delivers fast response time and stable clamping performance across temperature (–55°C to +125°C junction) without degradation. The 0.4 mm profile and NiPdAu lead finish support fine-pitch reflow processes in ultra-thin mobile devices.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | ±5 V - Matches standard 5 V I/O rails without derating or overvoltage risk |
| ESD Withstand | ±17 kV contact per IEC 61000-4-2 - Exceeds Level 4 immunity requirement for handheld devices |
| Junction Capacitance | <9 pF at 0 V - Preserves signal integrity on USB 2.0, audio, and display interfaces |
| Clamping Voltage | 15 V @ 2 A (8/20 µs) - Limits transient overvoltage to safe levels for downstream ICs |
| Dynamic Resistance | 0.55 Ω typical - Enables efficient energy shunting with minimal voltage overshoot |
| Reverse Leakage | <5 nA @ 5 V - Negligible DC loading on protected signal lines |
| Package | SLP1006N3T (1.0 × 0.6 × 0.4 mm) - Ultra-compact footprint for dense PCB layouts |
Pinout & Package
UCLAMP0552T.TNT uses the 3-terminal SLP1006N3T package: 1.0 mm × 0.6 mm body, 0.4 mm height, NiPdAu lead finish, UL 94V-0 molding compound, and tape-and-reel packaging. Pin configuration is symmetrical-any terminal may be grounded; remaining two connect to protected lines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Protected Line / I/O 1 | Connects to first high-speed signal line requiring ESD protection (e.g., USB D+, audio left) |
| Pin 2 | Protected Line / I/O 2 | Connects to second independent signal line (e.g., USB D−, audio right, side-key sense) |
| Pin 3 | Ground Reference | Low-inductance return path for ESD current; may alternatively use Pin 1 or Pin 2 as GND due to symmetry |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional ESD protection | Supports AC-coupled and bipolar signal lines without polarity constraints |
| 0.6 mm² PCB area | Reduces layout space vs. two discrete single-line TVS devices |
| 0.55 Ω dynamic resistance | Minimizes clamping voltage rise during fast transients, improving system robustness |
| UL 94V-0 flammability rating | Meets safety requirements for consumer portable electronics enclosures |
| Tape-and-reel packaging | Enables high-yield, automated pick-and-place assembly in volume production |
Applications
| Cellular Handset Keypads | Audio Port Protection |
|---|---|
Use Scenario: Mechanical side keys and tactile keypad switches exposed to direct human contact in smartphones. IC Role / Device Role / Timing Role: ESD transient suppressor placed inline between switch contacts and baseband processor GPIO. Use Value: Prevents latch-up or damage to sensitive input buffers during ±17 kV contact discharge events. | Use Scenario: 3.5 mm headphone jack and internal audio codec interconnects carrying analog stereo signals. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp protecting unbalanced analog lines from user-hand ESD. Use Value: Maintains signal fidelity (<9 pF) while suppressing transients that cause pop/click artifacts or ADC saturation. |
| LCD Flex Connector | Digital Interface Lines |
Use Scenario: ZIF or press-fit flex cable interfaces between mainboard and display module in slim-profile handsets. IC Role / Device Role / Timing Role: Dual-line TVS placed at connector entry point to shield parallel RGB or SPI control lines. Use Value: Prevents ESD-induced pixel corruption or display initialization failure without adding timing skew. | Use Scenario: High-speed digital lines such as I²C, UART, or debug interfaces exposed on test points or external headers. IC Role / Device Role / Timing Role: Board-level ESD guard for low-voltage logic signals operating at 5 V or less. Use Value: Provides fail-safe protection with <5 nA leakage, avoiding false triggering or bus contention. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPD2E001DRYR | 2-line, ±5.5 V working voltage; 12 pF capacitance; ±8 kV IEC 61000-4-2 contact rating | Higher capacitance limits use on >10 MHz analog lines; lower ESD rating suits cost-sensitive mid-tier devices | Select when lower clamping voltage (12 V @ 1 A) is prioritized over peak ESD immunity |
| SZ1.8SMCG-TP | Single-line, ±1.8 V working voltage; 0.5 pF capacitance; ±30 kV air discharge rating | Not pin-compatible; requires two devices for dual-line protection; suited for ultra-low-voltage sensor interfaces | Choose only for sub-2 V rail protection where ultra-low capacitance outweighs footprint penalty |
Compared with TPD2E001DRYR and SZ1.8SMCG-TP, the UCLAMP0552T.TNT uniquely balances ±17 kV ESD immunity, <9 pF capacitance, and true 3-terminal symmetry in a 0.6 mm² footprint-making it optimal for dual-line 5 V interfaces where space, speed, and ruggedness are jointly constrained.
Availability
UCLAMP0552T.TNT is available at Aetrix Electronics and suitable for cellular handset keypads, audio port protection, LCD flex connectors, and digital interface lines requiring stable component supply across high-mix, low-to-medium volume production runs.
Supply support for UCLAMP0552T.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 MicroClamp® product line-including UCLAMP0552T.TNT-is engineered for board-level ESD suppression in portable electronics, emphasizing ultra-small form factor, high surge capability, and signal-preserving low capacitance.
FAQ
What is the maximum working voltage supported by UCLAMP0552T.TNT?
The UCLAMP0552T.TNT supports a maximum working voltage of ±5 V, meaning it is rated for continuous operation on 5 V bidirectional signal lines without breakdown or excessive leakage. This specification ensures compatibility with standard microcontroller I/O, USB 2.0 data lines, and audio codec interfaces. Operating above this voltage risks premature conduction and device failure. The UCLAMP0552T.TNT datasheet confirms VRWM = ±5 V under all conditions.
Does UCLAMP0552T.TNT require a specific ground connection pin?
No-UCLAMP0552T.TNT has a symmetrical 3-terminal structure, so any one of its pins can serve as the ground reference while the other two protect signal lines. This flexibility simplifies PCB layout and eliminates orientation constraints during placement. The UCLAMP0552T.TNT design allows Pin 1, Pin 2, or Pin 3 to be connected to GND depending on routing needs, as confirmed in Semtech's Application Information section.
What is the clamping voltage of UCLAMP0552T.TNT at 2 A peak pulse current?
The UCLAMP0552T.TNT exhibits a clamping voltage of 15 V when subjected to a 2 A peak pulse current with an 8/20 µs waveform. This value is measured under standardized TLP testing conditions and reflects the maximum voltage seen by protected circuitry during transient events. The low clamping level-combined with 0.55 Ω dynamic resistance-ensures downstream components remain within safe operating limits. This parameter is explicitly listed in the UCLAMP0552T.TNT Electrical Characteristics table.
Can UCLAMP0552T.TNT be used on high-frequency analog lines like audio or RF?
Yes-UCLAMP0552T.TNT is suitable for analog audio lines due to its <9 pF junction capacitance at 0 V and low insertion loss (e.g., –4.6 dB at 800 MHz), which minimizes signal attenuation and phase distortion. It is not intended for RF power paths or antenna lines, but performs well on baseband audio, headset detection, and LCD control signals. The UCLAMP0552T.TNT Typical Characteristics graphs confirm stable capacitance vs. reverse voltage and flat S21 response up to 2.7 GHz.
Is UCLAMP0552T.TNT compliant with RoHS and halogen-free standards?
Yes-UCLAMP0552T.TNT is Pb-free, halogen-free, and fully compliant with RoHS and WEEE directives. Its lead finish is NiPdAu, and the molding compound meets UL 94V-0 flammability rating. These attributes are documented in the Mechanical Characteristics section of the official UCLAMP0552T.TNT datasheet and verified through Semtech's material declarations.
UCLAMP0552T.TNT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- 3-XDFN
- Series:
- uClamp®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 2
- 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:
- SLP1006N3T
UCLAMP0552T.TNT FAQ
1.How can I place an order for UCLAMP0552T.TNT through Aetrix?
Please submit a Request for Quotation (RFQ) for UCLAMP0552T.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 UCLAMP0552T.TNT reliable?
The price and inventory of UCLAMP0552T.TNT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UCLAMP0552T.TNT is usually 5 days.
3.What payment methods are accepted for UCLAMP0552T.TNT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UCLAMP0552T.TNT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UCLAMP0552T.TNT?
UCLAMP0552T.TNT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UCLAMP0552T.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 UCLAMP0552T.TNT?
For technical support, including UCLAMP0552T.TNT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UCLAMP0552T.TNT requirements.
6.How does Aetrix verify that UCLAMP0552T.TNT is sourced from the original manufacturer or authorized distributors?
All UCLAMP0552T.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 UCLAMP0552T.TNT meets industry standards.
7.What is the process for return or replacement of UCLAMP0552T.TNT?
All UCLAMP0552T.TNT units undergo pre-shipment inspection (PSI). If there is an issue with UCLAMP0552T.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 UCLAMP0552T.TNT part is unused and in its original packaging.
Return procedure for UCLAMP0552T.TNT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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