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Semtech Corporation UCLAMP3306P.TCT
- Part No.:
- UCLAMP3306P.TCT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 6-UFDFN Exposed Pad
- Datasheet:
-
UCLAMP3306P.TCT.pdf
- Description:
- TVS DIODE 3.3VWM 8VC SLP1616P6
- Quantity:
- Payment:
- Shipping:
Inventory:52,782
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Product details
Overview
UCLAMP3306P.TCT from Semtech is a transient diverting suppressor (TDS) designed for high-energy EOS/ESD protection of single 3.3V I/O or power lines in USB Type-C, USB PD, and industrial interfaces. It delivers ±30kV IEC 61000-4-2 ESD immunity, clamps at 5.8V (IPP = 24A), maintains constant clamping across temperature (–40°C to +125°C), and uses a surge-rated FET architecture for low dynamic resistance (20 mΩ).
For engineers reviewing the UCLAMP3306P.TCT datasheet, pinout, applications, or equivalent options, key selection criteria include its 3.3V working voltage, ultra-low 0.35pF junction capacitance for high-speed data lines, stable clamping under 40A 8/20μs surges, and DFN-6 (1.6 × 1.6 mm) package with symmetric 3-pin input/3-pin ground layout.
Technical Context
The UCLAMP3306P.TCT implements a precision-triggered shunt FET architecture-unlike conventional TVS diodes-enabling near-constant clamping voltage (5.8V) across its full 24–40A 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 (≤100 nA at 3.3V) and parasitic capacitance.
This architecture eliminates the linear VC = VBR + IPP × RDYN dependency seen in standard TVS devices. Instead, clamping remains anchored to the trigger breakdown voltage, delivering predictable protection for sensitive 3.3V logic, USB SuperSpeed lanes, and CC/SBU lines where voltage margin is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage (VRWM) | 3.3 V - Matches standard 3.3V I/O rail; ensures no leakage or conduction during normal operation. |
| Clamping Voltage (VC) | 5.8 V @ IPP = 24 A - Safely limits transient voltage below 3.3V IC damage thresholds (e.g., USB PD controllers, PHYs). |
| Peak Pulse Current (IPP) | 40 A @ 8/20 μs - Meets IEC 61000-4-5 Level 4 surge immunity for industrial and USB PD applications. |
| Junction Capacitance (CJ) | 0.35 pF @ 3.3 V - Enables use on USB 3.2 Gen 2 (10 Gbps), PCIe, and other high-speed differential pairs without signal integrity loss. |
| ESD Withstand | ±30 kV contact & air (IEC 61000-4-2) - Exceeds automotive and industrial ESD requirements for connector-facing protection. |
| Dynamic Resistance (RDYN) | 20 mΩ - Ensures minimal voltage rise under surge, enabling stable clamping independent of current magnitude. |
Pinout & Package
UCLAMP3306P.TCT is housed in a RoHS-compliant, halogen-free DFN-6 package measuring 1.6 mm × 1.6 mm × 0.55 mm, with wettable flank terminations for automated optical inspection (AOI). The package features three dedicated input pins and three dedicated ground pins for low-inductance, symmetrical surge current path design.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1, 2, 3 | GND | Low-inductance ground return path; all three must be connected to solid ground plane via multiple vias for full 40A surge capability. |
| Pin 4, 5, 6 | IN | Protected line input; pins are internally paralleled-must be routed as a single low-impedance trace from connector to protected IC. |
Key Features
| Feature | Design Value |
|---|---|
| FET-based transient shunting | Enables flat clamping curve (5.8V ±0.2V) across 24–40A and –40°C to +125°C-no derating required. |
| Ultra-low junction capacitance | 0.35 pF at 3.3V enables placement directly on USB 3.x, PCIe, and MIPI D-PHY differential lanes without equalization penalty. |
| High ESD robustness | ±30 kV contact discharge withstand protects against direct human-body-model (HBM) events at board edge connectors. |
| Low leakage current | ≤100 nA at 3.3V ensures negligible standby power impact on battery-powered IoT and portable devices. |
Applications
| USB Type-C SuperSpeed Lanes | USB PD Controller VBUS Input |
|---|---|
Use Scenario: Protecting TX/RX differential pairs in USB 3.2 Gen 2 (10 Gbps) implementations against ESD and lightning-induced surges. IC Role / Device Role / Timing Role: Low-capacitance, bidirectional transient suppressor placed immediately after the USB Type-C receptacle, before the USB controller PHY. Use Value: 0.35 pF capacitance prevents signal degradation or jitter increase; 5.8V clamping prevents PHY latch-up or oxide damage during ±30 kV ESD events. | Use Scenario: Safeguarding the VBUS input of USB PD controllers (e.g., TUSB73x, STUSB4500) against overvoltage from faulty chargers or hot-plug transients. IC Role / Device Role / Timing Role: Primary front-end clamp on the 3.3V auxiliary power rail feeding the PD controller's logic supply. Use Value: Clamps surges to 5.8V-well below the 6.5V absolute maximum rating of most PD controllers-while drawing <100 nA during normal operation. |
| Industrial Sensor Interface Lines | IoT Device CC/SBU Lines |
Use Scenario: Protecting 3.3V analog or digital sensor inputs (e.g., RS-485 transceivers, ADC reference lines) in factory automation equipment exposed to EFT and surge noise. IC Role / Device Role / Timing Role: Point-of-entry protector on isolated 3.3V signal lines entering enclosures with metal housings or long cable runs. Use Value: 40A 8/20μs surge rating meets IEC 61000-4-5 Level 4; stable clamping ensures sensor accuracy is preserved even at 125°C ambient. | Use Scenario: Securing Configuration Channel (CC) and Sideband Use (SBU) pins in compact IoT dongles and wearables where space and capacitance are constrained. IC Role / Device Role / Timing Role: Dedicated low-profile protector for bidirectional 3.3V CC/SBU signaling, co-located with the Type-C connector. Use Value: 1.6 × 1.6 mm footprint saves >60% board area vs. SOT-23 alternatives; 0.35 pF avoids skew between CC1/CC2 detection timing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SP1006-01UTG | TVS diode array; 5.5V VBR, 12 pF CJ, higher clamping drift with current/temperature. | Suitable for lower-speed interfaces (e.g., UART, I²C); not recommended for USB 3.x due to capacitance. | Select when cost sensitivity outweighs speed requirements and clamping stability is secondary. |
| UCLAMP0506T.TCT | Same FET-based TDS architecture; 5V VRWM, 6.5V VC, 0.45 pF CJ. | Better suited for 5V systems (e.g., legacy USB 2.0, HDMI DDC); slightly higher capacitance limits 10+ Gbps use. | Choose for 5V rails where tighter voltage margin than 3.3V allows; identical layout and thermal behavior. |
Compared with SP1006-01UTG and UCLAMP0506T.TCT, UCLAMP3306P.TCT uniquely combines 3.3V compatibility, sub-0.4pF capacitance, and flat 5.8V clamping-making it the only option qualified for next-gen USB Type-C SuperSpeed protection without signal integrity trade-offs.
Availability
UCLAMP3306P.TCT is available at Aetrix Electronics and suitable for USB Type-C interface protection, industrial sensor signal conditioning, and IoT device CC/SBU line safeguarding requiring stable component supply, consistent parametric performance, and long-term lifecycle support.
Supply support for UCLAMP3306P.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 global supplier of high-performance analog and mixed-signal semiconductors and advanced algorithms, focused on power management, protection, and sensing solutions.
The UCLAMP family belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered specifically to replace conventional TVS diodes in high-speed, low-voltage interfaces where clamping stability, ultra-low capacitance, and temperature-invariant performance are mandatory.
FAQ
What is the maximum clamping voltage of UCLAMP3306P.TCT under a 40A 8/20μs surge?
The UCLAMP3306P.TCT clamps at 5.8 V under a 40A 8/20μs surge (per IEC 61000-4-5 combination waveform, RS = 2 Ω). This value is guaranteed across –40°C to +125°C and reflects the device's FET-based architecture, which maintains stable clamping independent of current magnitude-unlike traditional TVS diodes.
Can UCLAMP3306P.TCT be used on USB 3.2 Gen 2 differential pairs without degrading signal integrity?
Yes. UCLAMP3306P.TCT exhibits only 0.35 pF junction capacitance at 3.3V, measured at 1 MHz. This ultra-low value ensures minimal insertion loss, return loss impact, or timing skew on 10 Gbps USB 3.2 Gen 2 differential lanes-validated in Semtech reference designs for Type-C receptacles with integrated SuperSpeed protection.
How does the pin configuration of UCLAMP3306P.TCT support high-current surge handling?
UCLAMP3306P.TCT uses a symmetrical 3-pin input (Pins 4–6) and 3-pin ground (Pins 1–3) layout in its DFN-6 package. This parallel pin architecture reduces total bondwire and trace inductance, enabling full 40A surge current sharing across all paths-critical for maintaining low clamping voltage during fast-rising transients like ESD.
Is UCLAMP3306P.TCT compatible with lead-free reflow profiles and AOI inspection?
Yes. UCLAMP3306P.TCT features a RoHS-compliant, halogen-free DFN-6 package with wettable flank terminations. It is qualified for standard JEDEC J-STD-020 lead-free reflow (peak 260°C) and supports automated optical inspection (AOI) due to its visible solderable sidewalls and laser-marked pin-1 indicator.
What is the leakage current of UCLAMP3306P.TCT at its rated working voltage?
At 3.3V reverse stand-off voltage (VRWM) and 25°C, UCLAMP3306P.TCT draws ≤100 nA reverse leakage current. This ultra-low leakage preserves battery life in portable and energy-harvesting IoT devices and avoids false triggering in high-impedance sensor bias networks.
UCLAMP3306P.TCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- 6-UFDFN Exposed Pad
- Series:
- uClamp®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 6
- 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:
- 20pF @ 1MHz
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SLP1616P6 (1.6x1.6)
UCLAMP3306P.TCT FAQ
1.How can I place an order for UCLAMP3306P.TCT through Aetrix?
Please submit a Request for Quotation (RFQ) for UCLAMP3306P.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 UCLAMP3306P.TCT reliable?
The price and inventory of UCLAMP3306P.TCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UCLAMP3306P.TCT is usually 5 days.
3.What payment methods are accepted for UCLAMP3306P.TCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UCLAMP3306P.TCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UCLAMP3306P.TCT?
UCLAMP3306P.TCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UCLAMP3306P.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 UCLAMP3306P.TCT?
For technical support, including UCLAMP3306P.TCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UCLAMP3306P.TCT requirements.
6.How does Aetrix verify that UCLAMP3306P.TCT is sourced from the original manufacturer or authorized distributors?
All UCLAMP3306P.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 UCLAMP3306P.TCT meets industry standards.
7.What is the process for return or replacement of UCLAMP3306P.TCT?
All UCLAMP3306P.TCT units undergo pre-shipment inspection (PSI). If there is an issue with UCLAMP3306P.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 UCLAMP3306P.TCT part is unused and in its original packaging.
Return procedure for UCLAMP3306P.TCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
UCLAMP3306P.TCT Tags
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