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Semtech Corporation UCLAMP2511T.TNT
- Part No.:
- UCLAMP2511T.TNT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 0402 (1006 Metric)
- Datasheet:
-
UCLAMP2511T.TNT.pdf
- Description:
- TVS DIODE 2.5VWM 8VC SLP1006P2T
- Quantity:
- Payment:
- Shipping:
Inventory:10,000
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Product details
Overview
UCLAMP2511T.TNT from Semtech is a transient diverting suppressor designed for high-energy EOS protection of 25V-rated I/O or power lines in USB Type-C, USB PD, and industrial interfaces. It delivers ±30kV IEC 61000-4-2 ESD immunity, 40A (8/20μs) peak pulse current handling, and maintains a stable 28V clamping voltage across temperature and current range using a surge-rated FET shunt architecture.
For engineers reviewing the UCLAMP2511T.TNT datasheet, pinout, applications, or equivalent options, key selection criteria include clamping stability under thermal stress, low dynamic resistance (<20 mΩ), junction capacitance (175 pF at 22V), and DFN 1.6×1.6mm 6-lead package compatibility with high-density USB PD front-end layouts.
Technical Context
The UCLAMP2511T.TNT employs a precision-triggered shunt FET as its primary protection element-unlike conventional TVS diodes-enabling near-constant clamping voltage independent of peak pulse current magnitude or operating temperature. Its trigger circuit activates the FET when transient voltage exceeds breakdown, leveraging ultra-low RDS(on) to clamp at ~28V.
It is rated for 25V working voltage (VRWM), 27.9V typical breakdown (VBR), and 1120W peak pulse power (tp = 8/20μs). The device sustains full 40A surge capability across –40°C to +125°C ambient, with leakage <600 nA at VRWM and junction capacitance of 175 pF at 22V/1MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage (VRWM) | 25 V - Maximum continuous DC or RMS operating voltage on protected line without triggering |
| Clamping Voltage (VC) | 28 V at 40A (8/20μs) - Stable over full current and temperature range; enables robust protection margin for 20–22V USB PD bus |
| Peak Pulse Current (IPP) | 40 A (8/20μs) - Meets IEC 61000-4-5 Level 4 surge immunity for industrial and USB PD applications |
| ESD Withstand | ±30 kV contact & air (IEC 61000-4-2) - Exceeds automotive and industrial ESD requirements without derating |
| Junction Capacitance | 175 pF at 22V/1MHz - Low enough for USB PD CC/SBU and load switch input protection without signal integrity impact |
| Dynamic Resistance | 20 mΩ - Enables flat clamping curve; reduces voltage overshoot during fast-rising transients vs. TVS diodes |
| Package | DFN 1.6 mm × 1.6 mm × 0.55 mm, 6-lead - RoHS-compliant, UL 94V-0 molding compound; supports high-density PCB layout |
Pinout & Package
UCLAMP2511T.TNT uses a 6-lead DFN package (1.6 mm × 1.6 mm × 0.55 mm) with exposed thermal pad not required-energy dissipation occurs in the FET channel. All three ground pins and all three input pins must be connected in parallel for full 40A surge rating and minimal parasitic inductance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pins 1, 2, 3 | GND | Common ground return path for surge current; all three must be tied to low-inductance ground plane via multiple vias |
| Pins 4, 5, 6 | IN | Protected line input (e.g., VBUS, CC, or load switch input); parallel connection ensures uniform current sharing and full IPP rating |
Key Features
| Feature | Design Value |
|---|---|
| FET-based shunt architecture | Enables constant clamping voltage across 1–40A and –40°C to +125°C-eliminates thermal derating uncertainty vs. TVS diodes |
| Low dynamic resistance | 20 mΩ ensures minimal voltage rise during surge onset; critical for protecting sensitive 25V-rated controllers and e-fuses |
| High EFT immunity | ±4 kV per IEC 61000-4-4 (5/50 ns, 100 kHz & 5 kHz) - protects against repetitive burst noise in industrial control environments |
| Small-footprint DFN | 1.6 mm × 1.6 mm saves >50% board area vs. SOIC-8 or SOT-23 alternatives while maintaining full surge rating |
| Lead-free & halogen-free | RoHS/WEEE compliant with UL 94V-0 flammability rating-meets global environmental and safety compliance mandates |
Applications
| USB Type-C Power Delivery Bus Protection | Industrial Load Switch Input Protection |
|---|---|
|
Use Scenario: Protecting 20–22V USB PD VBUS lines from lightning-induced surges and connector hot-plug ESD events. IC Role / Device Role / Timing Role: Transient diverting suppressor placed at connector entry point to shunt EOS energy to ground before reaching PD controller or buck converter. Use Value: Maintains 28V clamping at 40A and 125°C-prevents overvoltage damage to 24V-rated PD controllers where traditional TVS would exceed 38V at same conditions. |
Use Scenario: Safeguarding enable or input pins of industrial-grade load switches (e.g., HS2950P) exposed to field wiring transients. IC Role / Device Role / Timing Role: Front-end EOS guard that limits voltage seen by internal FET gate oxide during 1.2/50μs surge events. Use Value: Clamps below 28V across full temperature range-ensures gate-source voltage stays within safe operating area, preventing latch-up or permanent failure. |
| IoT Device Power Rail Protection | Robotic System DC Input Protection |
|
Use Scenario: Securing 24V auxiliary power inputs on battery-powered IoT gateways subject to ESD and induced surges in unshielded enclosures. IC Role / Device Role / Timing Role: Single-component solution replacing multi-diode TVS arrays-reduces BOM count and layout complexity. Use Value: 175 pF capacitance avoids signal distortion on shared power/data rails; ±30kV ESD rating eliminates need for secondary ESD staging. |
Use Scenario: Protecting 24V DC input of motor drive modules in collaborative robots exposed to cable discharge and inductive kickback. IC Role / Device Role / Timing Role: Primary surge diverter located at chassis entry point, upstream of input filter and DC-DC stage. Use Value: 1120W peak pulse power rating handles repeated 40A transients without degradation-supports long-term reliability in high-cycle automation systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TDS2211P | 22V VRWM, identical FET-shunt architecture, same DFN-6 package, 27.5–28V clamping at 40A | Optimized for 20–22V USB PD buses; slightly lower working voltage than UCLAMP2511T.TNT | Select when system nominal voltage is ≤22V and tighter clamping margin is prioritized over headroom |
| uClamp2411ZA | 24V VRWM, same Semtech FET-shunt platform, 175 pF capacitance, but rated for 24A (8/20μs) peak current | Targeted at CC/SBU lines in USB Type-C; lower surge rating makes it unsuitable for main VBUS or load switch inputs | Use only for low-current auxiliary lines; not a functional replacement for UCLAMP2511T.TNT in high-energy applications |
Compared with TDS2211P and uClamp2411ZA, UCLAMP2511T.TNT provides the highest working voltage (25V) and full 40A surge rating in the Semtech FET-shunt family-making it the sole option for 24V industrial bus or high-power USB PD designs requiring both voltage headroom and robust surge immunity.
Availability
UCLAMP2511T.TNT is available at Aetrix Electronics and suitable for USB Type-C power delivery systems, industrial load switch front-ends, and robotic DC input protection requiring stable component supply, long-lifecycle support, and guaranteed surge performance across extended temperature ranges.
Supply support for UCLAMP2511T.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 ICs for precision sensing, protection, and signal integrity.
The UCLAMP series belongs to Semtech's Transient Diverting Suppressor (TDS) product line-engineered to replace conventional TVS diodes in high-reliability applications demanding stable clamping, wide temperature operation, and compact form factor.
FAQ
What is the maximum continuous operating voltage for UCLAMP2511T.TNT?
The UCLAMP2511T.TNT has a reverse stand-off voltage (VRWM) of 25 V, meaning it can safely operate continuously at up to 25 V DC or RMS without triggering. This makes UCLAMP2511T.TNT suitable for 24V industrial rails and USB PD implementations where nominal bus voltage reaches 20–22V with transient headroom.
How does UCLAMP2511T.TNT achieve stable clamping voltage across temperature?
UCLAMP2511T.TNT uses a precision-triggered surge-rated FET instead of a PN-junction TVS. When activated, the FET's RDS(on) drops to ~20 mΩ, causing clamping voltage to track the trigger circuit's breakdown voltage-not the current-dependent VBR + IPP·RDYN of standard TVS devices. As a result, UCLAMP2511T.TNT clamps at ~28V from –40°C to +125°C.
Can UCLAMP2511T.TNT replace a standard TVS diode in an existing design?
UCLAMP2511T.TNT is not a drop-in replacement for standard TVS diodes due to different clamping behavior and pin configuration. While it shares the same DFN-6 footprint as some TVS parts, UCLAMP2511T.TNT requires parallel connection of all three IN pins and all three GND pins to achieve rated 40A performance-unlike most 2-pin TVS devices. Layout and grounding must be re-validated.
What is the junction capacitance of UCLAMP2511T.TNT and why does it matter?
UCLAMP2511T.TNT exhibits 175 pF of junction capacitance at 22V and 1 MHz. This value is low enough to avoid signal integrity issues on USB PD CC lines or load switch enable inputs, yet high enough to provide effective low-frequency surge energy absorption-striking a balance between ESD robustness and high-speed interface compatibility.
Is UCLAMP2511T.TNT suitable for automotive applications?
UCLAMP2511T.TNT is not AEC-Q200 qualified and lacks automotive-specific qualification data. While its –40°C to +125°C operating range meets under-hood temperature requirements, Semtech does not specify automotive-grade reliability testing (e.g., HTOL, ESD HBM/MM) for UCLAMP2511T.TNT. For automotive use, consult Semtech's automotive-qualified TDS variants or confirm qualification status directly with the manufacturer before deployment.
UCLAMP2511T.TNT 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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 2.5V (Max)
- Voltage - Breakdown (Min):
- -
- 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:
- 6pF @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SLP1006P2T
UCLAMP2511T.TNT FAQ
1.How can I place an order for UCLAMP2511T.TNT through Aetrix?
Please submit a Request for Quotation (RFQ) for UCLAMP2511T.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 UCLAMP2511T.TNT reliable?
The price and inventory of UCLAMP2511T.TNT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UCLAMP2511T.TNT is usually 5 days.
3.What payment methods are accepted for UCLAMP2511T.TNT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UCLAMP2511T.TNT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UCLAMP2511T.TNT?
UCLAMP2511T.TNT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UCLAMP2511T.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 UCLAMP2511T.TNT?
For technical support, including UCLAMP2511T.TNT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UCLAMP2511T.TNT requirements.
6.How does Aetrix verify that UCLAMP2511T.TNT is sourced from the original manufacturer or authorized distributors?
All UCLAMP2511T.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 UCLAMP2511T.TNT meets industry standards.
7.What is the process for return or replacement of UCLAMP2511T.TNT?
All UCLAMP2511T.TNT units undergo pre-shipment inspection (PSI). If there is an issue with UCLAMP2511T.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 UCLAMP2511T.TNT part is unused and in its original packaging.
Return procedure for UCLAMP2511T.TNT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
UCLAMP2511T.TNT Tags
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