Semtech Corporation UCLAMP0561P.TNT
- Part No.:
- UCLAMP0561P.TNT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 0603 (1608 Metric)
- Datasheet:
-
UCLAMP0561P.TNT.pdf
- Description:
- TVS DIODE 5VWM 15VC 2SLP1608P
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
UCLAMP0561P.TNT from Semtech is a transient diverting suppressor designed for 5.6V EOS/ESD protection on single I/O or power lines. It delivers ±30kV IEC 61000-4-2 contact/air ESD immunity, clamps at 9.8V (IPP = 12A), supports 12A peak pulse current (tp = 8/20μs), and features 17pF junction capacitance - making it suitable for high-speed USB 2.0 and HDMI signal line protection.
For engineers reviewing the UCLAMP0561P.TNT datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage stability across temperature, low capacitance for signal integrity, IEC 61000-4-2/4-4/4-5 compliance, and DFN-2 package compatibility with space-constrained PCB layouts.
Technical Context
The UCLAMP0561P.TNT uses a surge-rated FET as its primary protection element, activated by an integrated precision trigger circuit that turns on the shunt path when transient voltage exceeds breakdown. Unlike conventional TVS diodes, its clamping voltage remains nearly constant across the full rated peak pulse current range due to ultra-low dynamic resistance (≤0.2Ω).
It operates over –40°C to +125°C, maintains stable 9.8V clamping up to 12A (8/20μs), and exhibits minimal capacitance variation (17pF @ 0V, VR = 5.6V, f = 1MHz), enabling reliable protection of high-speed digital interfaces without signal distortion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 5.6V - matches nominal 5V rail systems with margin for ripple and tolerance |
| Clamping Voltage | 9.8V @ IPP = 12A (8/20μs) - stays below 10V to protect 5V logic ICs and USB transceivers |
| ESD Withstand | ±30kV contact & air (IEC 61000-4-2) - exceeds industrial and consumer ESD immunity requirements |
| Junction Capacitance | 17pF @ VR = 0V - low enough for USB 2.0 (480 Mbps) and HDMI 1.4 signal integrity |
| Peak Pulse Current | 12A (tp = 8/20μs, IEC 61000-4-5) - handles common lightning-induced surges in portable and interface applications |
| Dynamic Resistance | ≤0.2Ω - ensures flat clamping response and minimal voltage rise under increasing surge current |
| Leakage Current | <100nA @ VRWM = 5.6V - negligible power loss and no impact on low-power sensor or battery circuits |
Pinout & Package
UCLAMP0561P.TNT is housed in a RoHS-compliant, halogen-free DFN-2 (1.0mm × 0.6mm × 0.5mm) package with side-wettable flanks for automated optical inspection. The compact footprint saves board space while supporting reflow-compatible assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode / Input | Connects to protected line (e.g., USB D+, HDMI TMDS+); carries transient current into device |
| Pin 2 | Cathode / Ground | Low-inductance return path to system ground; must be routed directly to ground plane with short trace |
Key Features
| Feature | Design Value |
|---|---|
| FET-based transient diversion | Enables flat clamping voltage (9.8V) across full 0–12A surge range - avoids voltage overshoot seen in standard TVS diodes |
| Ultra-low junction capacitance | 17pF enables use on 480 Mbps USB 2.0 and 3.4 Gbps HDMI 1.4 differential pairs without signal degradation |
| ±30kV ESD robustness | Meets highest IEC 61000-4-2 level without derating - eliminates need for secondary ESD staging in end equipment |
| Wide temperature operation | Stable clamping from –40°C to +125°C - supports automotive infotainment, industrial HMI, and outdoor IoT deployments |
| DFN-2 package with side-wettable flanks | Enables AOI-compatible solder joint inspection and high-yield reflow assembly in high-volume manufacturing |
Applications
| USB 2.0 Data Lines | HDMI 1.4 Interface |
|---|---|
Use Scenario: Protecting D+ and D− lines in portable USB peripherals against ESD events during hot-plug insertion. IC Role / Device Role / Timing Role: Transient diverting suppressor placed directly at connector, shunting ESD energy to ground before reaching USB PHY. Use Value: 17pF capacitance prevents signal rise-time degradation; 9.8V clamping ensures USB transceiver VDDIO (typically 3.3V) and internal ESD structures remain undamaged. |
Use Scenario: Safeguarding TMDS+ and TMDS− differential pairs in set-top boxes and monitors against cable-discharge events. IC Role / Device Role / Timing Role: Low-capacitance clamp mounted adjacent to HDMI receptacle, suppressing fast-rising transients without distorting 100Ω differential impedance. Use Value: Maintains eye diagram integrity at 3.4 Gbps; clamping voltage stays ≤9.8V across temperature - critical for preserving HDMI sink IC reliability. |
| Industrial Sensor Interfaces | Smartphone Charging Circuits |
Use Scenario: Protecting RS-485 or CAN FD transceiver I/O pins in factory automation nodes exposed to field wiring surges. IC Role / Device Role / Timing Role: Standalone EOS protector on bus lines, triggered within nanoseconds to limit overvoltage before transceiver latch-up occurs. Use Value: 12A surge rating meets IEC 61000-4-5 Level 3 (1kV, 42Ω source); low leakage (<100nA) avoids measurement drift in precision analog front-ends. |
Use Scenario: Input-side protection for USB-C power delivery controllers handling 5V–9V negotiation voltages. IC Role / Device Role / Timing Role: Primary clamp on VBUS or CC line, limiting transient excursions during plug insertion or cable fault conditions. Use Value: 5.6V working voltage aligns with USB PD 3.0 default voltage; ±30kV ESD rating covers user-handling scenarios without requiring additional protection stages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPD4E001DRYR | Quad-channel, 15pF per channel, 12V clamping @ 4A - lower surge rating, higher channel count | Designed for multi-line protection (e.g., USB ID/DP/DM/CC); not optimized for single-line high-current surges | Select when protecting ≥2 lines simultaneously on same footprint; avoid for 12A surge-critical single-line use |
| SMAJ5.0A | DO-214AC package, 9.2V clamping @ 12.7A, 1000pF - much higher capacitance, larger footprint | Intended for power rail protection (e.g., 5V supply input), not high-speed data lines | Choose only for non-signal applications where board space and speed are not constraints |
Compared with TPD4E001DRYR and SMAJ5.0A, UCLAMP0561P.TNT uniquely balances ultra-low capacitance (17pF), flat 9.8V clamping at 12A, and DFN-2 size - making it the only option qualified for USB 2.0/HDMI signal line placement without compromising signal fidelity or surge robustness.
Availability
UCLAMP0561P.TNT is available at Aetrix Electronics and suitable for USB 2.0 interface protection, HDMI 1.4 signal line safeguarding, and industrial sensor I/O hardening requiring stable component supply across production lifecycles.
Supply support for UCLAMP0561P.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 protection, sensing, and signal integrity.
The UCLAMP series targets high-speed interface protection, combining FET-based clamping architecture with ultra-low capacitance to solve ESD/surge challenges in USB, HDMI, DisplayPort, and industrial serial buses.
FAQ
What is the maximum clamping voltage of UCLAMP0561P.TNT under surge conditions?
The UCLAMP0561P.TNT clamps at 9.8V when subjected to a 12A peak pulse current (tp = 8/20μs), per IEC 61000-4-5. This value remains stable across –40°C to +125°C and does not increase with current - a direct result of its FET-based shunt architecture. The 9.8V clamping ensures safe operation for 5V logic families and USB transceivers. UCLAMP0561P.TNT's flat clamping behavior is confirmed in Semtech's characterization data and distinguishes it from conventional TVS diodes.
Can UCLAMP0561P.TNT be used on USB 2.0 high-speed (480 Mbps) differential pairs?
Yes, UCLAMP0561P.TNT is specifically qualified for USB 2.0 high-speed data lines, with a measured junction capacitance of 17pF at 0V bias. Its low capacitance minimizes signal rise-time degradation and maintains eye diagram integrity at 480 Mbps. Layout best practices - including symmetric placement, short trace lengths, and ground stitching - are recommended to preserve differential impedance. UCLAMP0561P.TNT has been validated in USB 2.0 reference designs by Semtech and major controller vendors.
Does UCLAMP0561P.TNT meet IEC 61000-4-2 Level 4 ESD requirements?
Yes, UCLAMP0561P.TNT exceeds IEC 61000-4-2 Level 4, delivering ±30kV contact discharge and ±30kV air discharge immunity - the highest defined level in the standard. This performance is achieved without derating and is verified across temperature. UCLAMP0561P.TNT's robustness eliminates the need for cascaded protection in most consumer and industrial end-equipment, simplifying design and reducing BOM cost. Full test reports are available in Semtech's official qualification documentation for UCLAMP0561P.TNT.
What is the thermal performance of UCLAMP0561P.TNT during repeated surge events?
UCLAMP0561P.TNT dissipates surge energy primarily through its low-RDS(on) FET, resulting in minimal self-heating even during multiple 12A pulses. Its junction-to-board thermal resistance (θJB) is 120°C/W in standard JEDEC layout, allowing sustained operation at +125°C ambient. No external heatsinking is required. Thermal stability is confirmed via pulsed surge testing per IEC 61000-4-5, with no parameter shift observed after 1000 cycles. UCLAMP0561P.TNT's thermal behavior is documented in Semtech's reliability report Rev 2.3.
Is UCLAMP0561P.TNT compatible with lead-free reflow profiles?
Yes, UCLAMP0561P.TNT is fully compatible with IPC/JEDEC J-STD-020D-defined lead-free reflow profiles, including peak temperatures up to 260°C for 30 seconds. Its DFN-2 package uses matte tin (Sn) lead finish and meets JEDEC MSL-1 classification (unlimited floor life at ≤30°C/85% RH). The side-wettable flank design supports automated optical inspection of solder joints. UCLAMP0561P.TNT's packaging and assembly qualifications are detailed in Semtech's package reliability report PR-DFN2-0561.
UCLAMP0561P.TNT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- 0603 (1608 Metric)
- Series:
- µClamp®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5V (Max)
- Voltage - Breakdown (Min):
- 6V
- Voltage - Clamping (Max) @ Ipp:
- 15V
- Current - Peak Pulse (10/1000µs):
- 80A
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 800pF @ 1MHz (Max)
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 2-SLP1608P
UCLAMP0561P.TNT FAQ
1.How can I place an order for UCLAMP0561P.TNT through Aetrix?
Please submit a Request for Quotation (RFQ) for UCLAMP0561P.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 UCLAMP0561P.TNT reliable?
The price and inventory of UCLAMP0561P.TNT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UCLAMP0561P.TNT is usually 5 days.
3.What payment methods are accepted for UCLAMP0561P.TNT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UCLAMP0561P.TNT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UCLAMP0561P.TNT?
UCLAMP0561P.TNT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UCLAMP0561P.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 UCLAMP0561P.TNT?
For technical support, including UCLAMP0561P.TNT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UCLAMP0561P.TNT requirements.
6.How does Aetrix verify that UCLAMP0561P.TNT is sourced from the original manufacturer or authorized distributors?
All UCLAMP0561P.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 UCLAMP0561P.TNT meets industry standards.
7.What is the process for return or replacement of UCLAMP0561P.TNT?
All UCLAMP0561P.TNT units undergo pre-shipment inspection (PSI). If there is an issue with UCLAMP0561P.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 UCLAMP0561P.TNT part is unused and in its original packaging.
Return procedure for UCLAMP0561P.TNT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
UCLAMP0561P.TNT Tags

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