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Semtech Corporation UCLAMP3301P.TCT
- Part No.:
- UCLAMP3301P.TCT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 0402 (1006 Metric)
- Datasheet:
-
UCLAMP3301P.TCT.pdf
- Description:
- TVS DIODE 3.3VWM 8VC SLP1006P2
- Quantity:
- Payment:
- Shipping:
Inventory:1,485
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Product details
Overview
UCLAMP3301P.TCT from Semtech is a transient diverting suppressor (TDS) designed for high-energy EOS/ESD protection of 3.3V I/O lines in USB, HDMI, and industrial interfaces. It delivers ±30kV IEC 61000-4-2 ESD immunity, clamps at 5.8V (IPP = 24A), maintains <0.5Ω dynamic resistance, and operates from –40°C to +125°C in a 1.0mm × 0.6mm DFN-2 package.
For engineers reviewing the UCLAMP3301P.TCT datasheet, pinout, applications, or equivalent options, this page provides verified clamping behavior, temperature-stable surge response, low-capacitance interface protection specs, and validated alternatives for USB Type-C, HDMI 2.0, and industrial sensor bus designs.
Technical Context
The UCLAMP3301P.TCT uses a precision-triggered shunt FET architecture-not a conventional TVS diode-enabling near-constant clamping voltage across 1A–24A peak pulse current (tp = 8/20μs) and –40°C to +125°C. Its trigger circuit activates the low-RDS(on) FET when transient voltage exceeds VBR, bypassing energy to ground with minimal voltage rise.
Unlike standard TVS devices whose clamping voltage rises linearly with IPP and temperature, UCLAMP3301P.TCT achieves ≤5.8V clamping at 24A and ≤6.0V at 125°C due to its active FET-based topology and integrated drive circuit. It supports unsymmetrical line protection with bidirectional operation and 17pF junction capacitance at VR = 3.3V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 3.3V - Matches standard logic I/O rails; enables direct placement on 3.3V data lines without level-shifting. |
| Clamping Voltage (VC) | 5.8V @ IPP = 24A (8/20μs) - Remains ≤6.0V up to 125°C; protects 5V-tolerant receivers and USB PHYs. |
| ESD Withstand | ±30kV contact & air (IEC 61000-4-2) - Exceeds Level 4 immunity requirements for consumer and industrial ports. |
| Junction Capacitance | 17pF @ VR = 3.3V, 1MHz - Low enough for USB 2.0 (480Mbps), HDMI 2.0 (6Gbps), and MIPI D-PHY v2.1. |
| Dynamic Resistance | 0.45Ω (1A–24A, tp = 8/20μs) - Ensures stable clamping with minimal voltage overshoot during fast transients. |
| Leakage Current | 10nA @ VRWM = 3.3V - Negligible power loss in battery-powered IoT and portable systems. |
| Package | DFN-2 (1.0mm × 0.6mm × 0.35mm) - Enables ultra-compact placement adjacent to connectors or IC pads. |
Pinout & Package
UCLAMP3301P.TCT is housed in a Pb-free, RoHS-compliant 2-pin DFN package (1.0mm × 0.6mm × 0.35mm) with exposed thermal pad. Both terminals are symmetric and bidirectional; no polarity marking required.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 / Pin 2 | Common I/O Terminal | Bidirectional connection point for protected line (e.g., USB D+, HDMI TMDS+, or sensor data line); internally tied to shunt FET source/drain. |
Key Features
| Feature | Design Value |
|---|---|
| Active FET-Based Clamping | Replaces passive TVS with triggered MOSFET; eliminates VBR + IPP×RDYN voltage rise - clamping stays flat across current and temperature. |
| Ultra-Low Capacitance | 17pF at 3.3V enables signal integrity preservation on high-speed 480Mbps USB 2.0 and 6Gbps HDMI 2.0 differential pairs. |
| High-Temperature Stability | Clamping voltage drift <0.2V from –40°C to +125°C - ensures consistent protection in automotive under-hood or industrial control cabinets. |
| Compact DFN-2 Footprint | 1.0mm × 0.6mm area saves >60% board space vs. SOD-323 or SC-70 packages - critical for slim mobile and wearable PCBs. |
| Robust EFT Immunity | ±4kV per IEC 61000-4-4 (5/50ns bursts) - withstands repetitive electrical fast transients in factory automation and motor drive environments. |
Applications
| USB Type-C Data Lines | HDMI 2.0 Differential Pairs |
|---|---|
Use Scenario: Protecting USB 2.0 D+/D− lines in Type-C receptacles exposed to ESD during cable insertion and hot-plug events. IC Role / Device Role / Timing Role: Bidirectional transient shunt placed between D+ and D−, referenced to GND, clamping surges before they reach the USB controller PHY. Use Value: Prevents latch-up and gate oxide damage in 3.3V USB transceivers while maintaining <1% signal distortion at 480Mbps due to 17pF loading. |
Use Scenario: Shielding HDMI 2.0 TMDS+ and TMDS− channels from ESD and lightning-induced surges in set-top boxes and AV receivers. IC Role / Device Role / Timing Role: Low-capacitance parallel clamp on each differential pair, ensuring common-mode surge suppression without skew or jitter degradation. Use Value: Enables full 6Gbps bandwidth compliance by limiting capacitance to 17pF and clamping transients to ≤5.8V - below HDMI receiver absolute max rating. |
| Industrial Sensor Interfaces | IoT Wireless Module Antenna Lines |
Use Scenario: Safeguarding RS-485, CAN FD, or I²C lines connected to environmental sensors in outdoor metering or smart agriculture nodes. IC Role / Device Role / Timing Role: Unidirectional or bidirectional clamp on signal lines referenced to local GND, absorbing 24A surges from induced lightning coupling. Use Value: Maintains 5.8V clamping at 125°C ambient - critical for uncooled enclosures where traditional TVS clamping would exceed 7V and damage 3.3V microcontrollers. |
Use Scenario: ESD protection on RF antenna feedlines (e.g., Wi-Fi 2.4GHz, BLE, LoRa) entering wireless SoCs like ESP32 or nRF52840. IC Role / Device Role / Timing Role: Series-connected or shunt-mounted clamp on antenna path, minimizing insertion loss (<0.1dB) while suppressing ±30kV ESD. Use Value: 17pF capacitance avoids resonant detuning of 50Ω matching networks; 0.45Ω RDYN prevents RF harmonic generation during clamping. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPD4E001DPYR | 4-channel array in DQFN-10; 12pF typical capacitance; 6.5V clamping @ 24A; requires external GND routing. | Designed for multi-line protection (e.g., USB D+/D− + VBUS + ID); not single-line optimized. | Select when protecting ≥2 signals simultaneously and board layout allows shared GND trace routing. |
| SMLJ3.3A | Unidirectional 3.3V TVS in SMA package; 600W peak power; 12V clamping @ 24A; 100pF capacitance. | Higher clamping and capacitance limit use to low-speed DC power rails or non-differential signals. | Choose only for cost-sensitive, non-high-speed applications where 12V clamping and 100pF are acceptable. |
Compared with TPD4E001DPYR and SMLJ3.3A, UCLAMP3301P.TCT uniquely combines single-line simplicity, 17pF capacitance, and flat 5.8V clamping - making it optimal for space-constrained, high-speed 3.3V interfaces where signal fidelity and thermal stability are non-negotiable.
Availability
UCLAMP3301P.TCT is available at Aetrix Electronics and suitable for USB Type-C, HDMI 2.0, industrial sensor interfaces, IoT wireless modules, and automotive infotainment requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for UCLAMP3301P.TCT 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 protection, signal integrity, and power management.
The UCLAMP series targets high-reliability interface protection with active FET-based clamping - engineered specifically for next-generation USB, HDMI, MIPI, and industrial serial buses demanding sub-6V clamping and <20pF loading.
FAQ
What is the maximum peak pulse current rating for UCLAMP3301P.TCT?
UCLAMP3301P.TCT is rated for 24A peak pulse current (tp = 8/20μs) per IEC 61000-4-5. At this current, its clamping voltage remains 5.8V - significantly lower than conventional TVS diodes. This rating is validated across –40°C to +125°C and applies to both unidirectional and bidirectional surge events on the protected line.
Does UCLAMP3301P.TCT require a specific PCB layout for optimal performance?
Yes - UCLAMP3301P.TCT must be placed within 3mm of the protected connector or IC pad, with minimum-length traces to both terminals and a low-inductance GND path. The DFN-2 package has no dedicated GND pin; system GND must be established via adjacent copper pour and multiple vias. Avoid stubs or right-angle bends to preserve high-frequency surge response.
Can UCLAMP3301P.TCT be used on bidirectional data lines like USB D+ and D−?
Yes - UCLAMP3301P.TCT is inherently bidirectional and symmetric. Its internal FET-based architecture provides identical clamping behavior regardless of transient polarity, making it ideal for differential data lines such as USB 2.0 D+/D−, HDMI TMDS+, or MIPI D-PHY. No orientation marking or polarity consideration is needed during placement.
How does UCLAMP3301P.TCT's clamping voltage compare to standard TVS diodes at elevated temperatures?
At +125°C, UCLAMP3301P.TCT clamps at ≤6.0V (vs. 5.8V at 25°C), a drift of only 0.2V. In contrast, a typical 3.3V TVS diode may exceed 8.5V at the same temperature due to positive VBR temperature coefficient and fixed RDYN. This stability is achieved via the active trigger circuit and low-RDS(on) FET - confirmed in Semtech's Figure 3 clamping vs. temperature curves.
Is UCLAMP3301P.TCT compatible with lead-free reflow soldering processes?
Yes - UCLAMP3301P.TCT is qualified for standard JEDEC J-STD-020D lead-free reflow profiles, including peak temperatures up to 260°C. Its DFN-2 package uses matte tin (Sn) lead finish and UL 94V-0 molding compound, supporting automated assembly in high-volume manufacturing without delamination or voiding risks.
UCLAMP3301P.TCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- 0402 (1006 Metric)
- Series:
- uClamp®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 3.3V (Max)
- Voltage - Breakdown (Min):
- 3.5V
- Voltage - Clamping (Max) @ Ipp:
- 8V
- Current - Peak Pulse (10/1000µs):
- 5A (8/20µs)
- Power - Peak Pulse:
- 40W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 25pF @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SLP1006P2
UCLAMP3301P.TCT FAQ
1.How can I place an order for UCLAMP3301P.TCT through Aetrix?
Please submit a Request for Quotation (RFQ) for UCLAMP3301P.TCT 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 UCLAMP3301P.TCT reliable?
The price and inventory of UCLAMP3301P.TCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UCLAMP3301P.TCT is usually 5 days.
3.What payment methods are accepted for UCLAMP3301P.TCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UCLAMP3301P.TCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UCLAMP3301P.TCT?
UCLAMP3301P.TCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UCLAMP3301P.TCT 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 UCLAMP3301P.TCT?
For technical support, including UCLAMP3301P.TCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UCLAMP3301P.TCT requirements.
6.How does Aetrix verify that UCLAMP3301P.TCT is sourced from the original manufacturer or authorized distributors?
All UCLAMP3301P.TCT 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 UCLAMP3301P.TCT meets industry standards.
7.What is the process for return or replacement of UCLAMP3301P.TCT?
All UCLAMP3301P.TCT units undergo pre-shipment inspection (PSI). If there is an issue with UCLAMP3301P.TCT, 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 UCLAMP3301P.TCT part is unused and in its original packaging.
Return procedure for UCLAMP3301P.TCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
UCLAMP3301P.TCT Tags
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