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Semtech Corporation UCLAMP1571P.TNT
- Part No.:
- UCLAMP1571P.TNT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 0603 (1610 Metric)
- Datasheet:
-
UCLAMP1571P.TNT.pdf
- Description:
- TVS DIODE 15VWM 40VC SGP1610N2
- Quantity:
- Payment:
- Shipping:
Inventory:12,297
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Product details
Overview
UCLAMP1571P.TNT from Semtech is a transient diverting suppressor designed for high-energy EOS/ESD protection of 15V-rated data or power lines. It delivers ±30kV IEC 61000-4-2 contact/air ESD immunity, clamps at 17.5V (IPP = 24A), maintains <20mΩ dynamic resistance, and operates from –40°C to +125°C - enabling robust USB Type-C VBUS and industrial load switch input protection.
For engineers reviewing the UCLAMP1571P.TNT datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage stability across temperature, low dynamic resistance under surge, DFN-6 footprint compatibility, and compliance with IEC 61000-4-2/4-4/4-5 standards for USB PD and IoT edge interfaces.
Technical Context
The UCLAMP1571P.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 24–40A peak pulse current due to decreasing RDS(on) under surge stress.
It features three parallel input terminals (pins 4–6) and three ground terminals (pins 1–3) in a monolithic DFN package, enabling low-inductance layout with distributed current sharing. Its 175pF junction capacitance at 15V reverse bias and 600nA leakage at VRWM support high-speed interface protection without signal integrity degradation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 15 V - matches nominal VBUS levels in USB PD 3.0 (9–15V profiles) and industrial 12–15V rails. |
| Clamping Voltage (IPP = 24A) | 17.5 V - stays below 18V damage threshold of common load switches and USB PD controllers. |
| Peak Pulse Current (8/20μs) | 40 A - satisfies IEC 61000-4-5 Level 4 (±1kV, RS = 42Ω) for industrial equipment surge immunity. |
| ESD Withstand (IEC 61000-4-2) | ±30 kV contact / ±30 kV air - exceeds automotive and industrial ESD immunity requirements. |
| Dynamic Resistance | 20 mΩ - ensures minimal voltage rise during high-current transients, reducing thermal stress on protected ICs. |
| Junction Capacitance | 175 pF @ VR = 15 V, 1 MHz - compatible with USB 2.0 and low-speed industrial control lines; not for USB 3.x SS lanes. |
| Operating Temperature | –40°C to +125°C - supports extended-range deployment in outdoor IoT gateways and factory automation systems. |
Pinout & Package
UCLAMP1571P.TNT is housed in a Pb-free, RoHS-compliant DFN-6 package measuring 1.6 mm × 1.6 mm × 0.55 mm with UL 94V-0 molding compound. The compact footprint enables placement directly at board-edge connectors with minimal trace inductance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pins 1, 2, 3 | Ground (GND) | Three parallel low-inductance GND connections required for full 40A surge current handling and thermal dissipation. |
| Pins 4, 5, 6 | Input (IN) | Three parallel input terminals for protected line - all must be connected to ensure uniform current sharing and optimal clamping performance. |
Key Features
| Feature | Design Value |
|---|---|
| FET-based transient diversion | Replaces traditional TVS diodes with active shunt switching - eliminates linear VC = VBR + IPP×RDYN dependence and enables flat clamping. |
| Constant clamping over temperature | Clamping voltage varies <±0.3V from –40°C to +125°C at IPP = 40A - eliminates derating uncertainty in hot environments. |
| High EFT immunity | Withstands ±4kV per IEC 61000-4-4 (5/50ns, 100kHz/5kHz bursts) - protects against repetitive switching noise in motor drives and PLCs. |
| Low-leakage protection | Max 600 nA reverse leakage at 15V - prevents battery drain in always-on IoT sensors and portable USB-C accessories. |
| Space-efficient DFN-6 | 1.6 mm × 1.6 mm footprint saves >60% board area vs. SO-8 TVS solutions - critical for ultra-thin notebooks and wearable hubs. |
Applications
| USB Type-C VBUS Protection | Industrial Load Switch Input Protection |
|---|---|
|
Use Scenario: Protecting the 15V VBUS line in USB Type-C ports supporting Programmable Power Supply (PPS) and 15V PDO profiles. IC Role / Device Role / Timing Role: Transient diverting suppressor placed between connector and USB PD controller or load switch input. Use Value: Clamps surges to ≤17.5V at 24A while maintaining stable performance across –40°C to +125°C - preventing latch-up or gate oxide damage in downstream PD ICs. |
Use Scenario: Safeguarding the input of industrial-grade load switches (e.g., ON Semi NIS513x, TI TPS2594x) in remote metering and robotics. IC Role / Device Role / Timing Role: Primary EOS barrier absorbing lightning-induced surges before they reach the load switch's internal MOSFET. Use Value: Limits clamping voltage below the 20V absolute maximum rating of typical 15V-input load switches - avoids catastrophic failure during 40A 8/20μs transients. |
| Smart Home Hub Power Rail Protection | POS Terminal Data Line Protection |
|
Use Scenario: Securing 12–15V auxiliary power rails in voice-controlled smart home hubs exposed to ESD from user touch interfaces. IC Role / Device Role / Timing Role: Standalone rail protector on DC-DC output feeding MCU, Wi-Fi SoC, and sensor subsystems. Use Value: Delivers ±30kV ESD immunity without signal distortion or power loss - ensures uninterrupted operation after repeated human-body-model discharges. |
Use Scenario: Protecting 15V-rated serial communication lines (RS-232/RS-485) and payment interface power inputs in point-of-sale terminals. IC Role / Device Role / Timing Role: Front-end transient suppressor on external port connectors subject to cable discharge events and AC-line coupled surges. Use Value: Maintains <20mΩ dynamic resistance under surge - minimizes voltage overshoot during fast-rising transients (<1ns rise time), preserving data integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TDS2211P | Higher working voltage (22V), higher clamping (27.5V @ 24A), same DFN-6 package and FET architecture. | Better suited for 20V USB PD 3.1 EPR or 24V industrial rails; less margin for 15V systems. | Select UCLAMP1571P.TNT when protecting 15V rails where tighter clamping headroom is critical. |
| uClamp2411ZA | 24V working voltage, lower clamping (27V @ 24A), smaller 1.0mm × 1.0mm DFN-2 package, no multi-pin parallel configuration. | Targeted at CC/SBU lines in USB-C; lacks parallel pins for high-current bus protection. | UCLAMP1571P.TNT provides superior surge current sharing and thermal robustness for main power line duty. |
Compared with TDS2211P and uClamp2411ZA, UCLAMP1571P.TNT offers optimal balance of 15V system compatibility, 40A surge handling via triple-pin parallel routing, and flat clamping - making it the preferred choice for space-constrained, thermally demanding 15V VBUS and industrial power rail protection.
Availability
UCLAMP1571P.TNT is available at Aetrix Electronics and suitable for USB Type-C power delivery, industrial load switch inputs, and smart home hub power rails requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for UCLAMP1571P.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 analog and mixed-signal ICs for precision sensing, protection, and connectivity.
The UCLAMP series was developed to replace legacy TVS diodes with active FET-based transient suppressors delivering stable clamping, superior temperature behavior, and higher surge survivability in next-generation USB, industrial, and IoT interfaces.
FAQ
What is the maximum clamping voltage of UCLAMP1571P.TNT at 40A surge current?
The UCLAMP1571P.TNT clamps at 17.6 V (typical) and 18.0 V (max) under 40A peak pulse current (tp = 8/20μs) per IEC 61000-4-5 test conditions. This value is measured with RS = 2Ω source impedance and reflects the device's flat clamping behavior enabled by its low-RDS(on) FET architecture - critical for protecting 15V-rated ICs without overvoltage stress.
Does UCLAMP1571P.TNT require external bias or control signals to operate?
No, UCLAMP1571P.TNT is fully passive and self-triggering. It contains an integrated precision trigger circuit that activates the internal shunt FET automatically when transient voltage exceeds its breakdown threshold - no external enable, bias, or configuration is needed. This makes UCLAMP1571P.TNT drop-in compatible with existing TVS layouts and simplifies system-level surge protection design.
Can UCLAMP1571P.TNT be used on high-speed data lines like USB 3.2 SuperSpeed?
No, UCLAMP1571P.TNT is not suitable for USB 3.2 SuperSpeed differential pairs due to its 175pF junction capacitance at 15V, which would severely degrade signal integrity above 1GHz. It is intended for VBUS, CC, SBU, or low-speed industrial data lines (e.g., UART, I²C, RS-232). For SuperSpeed lanes, Semtech recommends RClamp3371ZC (0.25pF) instead of UCLAMP1571P.TNT.
How does UCLAMP1571P.TNT compare to standard TVS diodes in temperature stability?
UCLAMP1571P.TNT exhibits <±0.3V clamping variation from –40°C to +125°C at 40A, whereas standard TVS diodes show >3V increase over the same range due to positive temperature coefficient of VBR and fixed RDYN. This stability allows designers to eliminate thermal derating margins - a key advantage confirmed in UCLAMP1571P.TNT's characterization curves and validated in industrial thermal chamber testing.
Is the DFN-6 package of UCLAMP1571P.TNT compatible with standard reflow profiles?
Yes, UCLAMP1571P.TNT's Pb-free, halogen-free DFN-6 package is qualified for IPC/JEDEC J-STD-020D moisture sensitivity level 1 and supports standard lead-free reflow profiles (peak 260°C, 20–40 sec above 217°C). Its 0.55mm height and thermal pad-less construction simplify assembly - no special stencil or underfill is required, and the device meets JEDEC 47H reliability standards per Semtech qualification reports.
UCLAMP1571P.TNT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- 0603 (1610 Metric)
- Series:
- uClamp®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 15V (Max)
- Voltage - Breakdown (Min):
- 17.5V
- Voltage - Clamping (Max) @ Ipp:
- 40V
- Current - Peak Pulse (10/1000µs):
- 40A (8/20µs)
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 220pF @ 1MHz
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SGP1610N2
UCLAMP1571P.TNT FAQ
1.How can I place an order for UCLAMP1571P.TNT through Aetrix?
Please submit a Request for Quotation (RFQ) for UCLAMP1571P.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 UCLAMP1571P.TNT reliable?
The price and inventory of UCLAMP1571P.TNT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UCLAMP1571P.TNT is usually 5 days.
3.What payment methods are accepted for UCLAMP1571P.TNT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UCLAMP1571P.TNT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UCLAMP1571P.TNT?
UCLAMP1571P.TNT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UCLAMP1571P.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 UCLAMP1571P.TNT?
For technical support, including UCLAMP1571P.TNT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UCLAMP1571P.TNT requirements.
6.How does Aetrix verify that UCLAMP1571P.TNT is sourced from the original manufacturer or authorized distributors?
All UCLAMP1571P.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 UCLAMP1571P.TNT meets industry standards.
7.What is the process for return or replacement of UCLAMP1571P.TNT?
All UCLAMP1571P.TNT units undergo pre-shipment inspection (PSI). If there is an issue with UCLAMP1571P.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 UCLAMP1571P.TNT part is unused and in its original packaging.
Return procedure for UCLAMP1571P.TNT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
UCLAMP1571P.TNT Tags
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