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Semtech Corporation UCLAMP1561P.TNT
- Part No.:
- UCLAMP1561P.TNT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 0603 (1608 Metric)
- Datasheet:
-
UCLAMP1561P.TNT.pdf
- Description:
- TVS DIODE 15VWM 28VC SLP1608P2
- Quantity:
- Payment:
- Shipping:
Inventory:9,900
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Product details
Overview
UCLAMP1561P.TNT from Semtech is a transient diverting suppressor (TDS) designed for high-energy EOS protection of 15V-rated 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 17.5V (IPP = 24A), maintains constant clamping voltage across −40°C to +125°C, and uses a surge-rated FET shunt architecture for stable overvoltage suppression.
For engineers reviewing the UCLAMP1561P.TNT datasheet, pinout, applications, or equivalent options, key selection criteria include clamping stability under temperature and peak pulse current, low dynamic resistance (<25 mΩ), junction capacitance (185 pF @ 15 V), and DFN 1.6 × 1.6 mm 6-lead package compatibility with high-density USB PD layouts.
Technical Context
The UCLAMP1561P.TNT implements a precision-triggered FET-based shunt architecture - not a conventional TVS diode - enabling near-constant clamping voltage independent of IPP and temperature. Its trigger circuit activates the low-RDS(on) FET when transient voltage exceeds breakdown, routing surge current directly to ground via parallel GND pins.
It supports unsymmetrical line protection per IEC 61000-4-5 with ±1 kV (1.2/50 μs, RS = 42 Ω) and 40 A (8/20 μs) peak pulse capability. The device operates from −40°C to +125°C with guaranteed clamping performance and <600 nA reverse leakage at 15 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage (VRWM) | 15 V - defines maximum continuous DC bus voltage before leakage rises; matches USB PD 15 V profiles and industrial 12–15 V rails. |
| Clamping Voltage (VC) | 17.5 V @ IPP = 24 A - ensures protected ICs (e.g., USB PD controllers) remain below absolute maximum ratings during surge events. |
| Peak Pulse Current (IPP) | 40 A (8/20 μs) - meets IEC 61000-4-5 Level 4 surge immunity for industrial equipment and USB PD source/sink ports. |
| ESD Withstand | ±30 kV contact & air (IEC 61000-4-2) - exceeds USB IF and IEC immunity requirements for end-user accessible ports. |
| Junction Capacitance (CJ) | 185 pF @ 15 V, 1 MHz - low enough for USB 2.0 signal integrity; requires layout isolation from high-speed differential pairs. |
| Dynamic Resistance (RDYN) | 25 mΩ - enables flat clamping curve; reduces voltage overshoot during fast-rising transients compared to TVS diodes. |
| Operating Temperature | −40°C to +125°C - supports extended-range industrial, automotive accessory, and outdoor IoT deployments. |
Pinout & Package
UCLAMP1561P.TNT is housed in a RoHS-compliant, halogen-free DFN package measuring 1.6 mm × 1.6 mm × 0.55 mm with exposed thermal pad (no solder mask defined). All six terminals are surface-mount; pins 1–3 form a low-inductance ground plane, while pins 4–6 serve as parallel input connections to the protected line.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground return path; all three must be connected to minimize parasitic inductance and maximize 40 A surge current handling. |
| 4, 5, 6 | IN | Parallel-connected input terminals for protected bus; equal current sharing ensures uniform FET activation and thermal distribution. |
Key Features
| Feature | Design Value |
|---|---|
| FET-based shunt architecture | Eliminates voltage-dependent clamping rise; maintains ≤17.5 V clamping from 1 A to 40 A and −40°C to +125°C. |
| Low dynamic resistance | 25 mΩ enables sub-1 V overshoot during 10 ns/100 A transients - critical for protecting sensitive 15 V logic interfaces. |
| High-energy surge rating | 1120 W peak pulse power (8/20 μs) sustains repeated lightning-induced surges without degradation in industrial gateways. |
| Ultra-low leakage | <600 nA @ 15 V ensures minimal standby power loss in battery-backed IoT sensors and always-on USB PD controllers. |
| DFN 1.6×1.6 mm footprint | Reduces PCB area by >60% vs. SO-8 TVS solutions; compatible with automated optical inspection and fine-pitch reflow profiles. |
Applications
| USB Type-C Power Delivery Protection | Industrial 15 V Sensor Bus Protection |
|---|---|
Use Scenario: Protecting VBUS lines in USB-C receptacles supporting up to 15 V/3 A PD profiles against ESD and lightning-induced surges. IC Role / Device Role / Timing Role: Primary EOS shunt suppressor placed between connector and PD controller or load switch input. Use Value: Prevents latch-up or gate oxide damage in USB PD controllers by clamping transients to 17.5 V - 2.5 V below typical 20 V abs max rating. |
Use Scenario: Safeguarding 15 V analog sensor supply rails in programmable logic controllers (PLCs) exposed to field wiring transients. IC Role / Device Role / Timing Role: Front-end transient guard for isolated DC-DC converters feeding 15 V sensor excitation circuits. Use Value: Enables compliance with IEC 61000-4-5 Level 4 (±1 kV) without derating - maintaining system uptime in factory-floor environments. |
| IoT Gateway Ethernet/Power Port | Automotive Accessory 12 V–15 V Input |
Use Scenario: Securing combined 15 V PoE-like power and UART/USB debug lines on edge IoT gateways deployed in uncontrolled environments. IC Role / Device Role / Timing Role: Single-device solution for both power rail and low-speed data line protection where space is constrained. Use Value: Replaces dual TVS + capacitor networks with one component, reducing BOM count and eliminating mismatched clamping delays. |
Use Scenario: Input protection for 15 V-rated infotainment USB hubs or telematics modules powered from vehicle battery (12 V nominal, up to 15 V). IC Role / Device Role / Timing Role: Clamping device upstream of LDO regulators and USB transceivers to prevent brownout or reset during load dump. Use Value: Stable 17.5 V clamping across −40°C to +125°C ensures consistent protection during cold cranking and engine bay thermal cycling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TDS1511P | Same FET-based TDS architecture; identical 15 V VRWM, but lower IPP (25 A vs. 40 A) and higher clamping (18.2 V @ 24 A). | Suitable for consumer-grade USB peripherals where full IEC 61000-4-5 Level 4 is not required. | Select TDS1511P only if board space allows larger thermal margin or peak surge exposure is limited to ≤25 A. |
| SM712-02HTG | Traditional bipolar TVS diode; higher dynamic resistance (~120 mΩ); clamping rises to 22.5 V at 24 A and increases with temperature. | Used in legacy industrial designs where FET-based TDS adoption is restricted by qualification timelines. | Choose SM712-02HTG only if cost sensitivity outweighs clamping stability and temperature performance requirements. |
Compared with TDS1511P and SM712-02HTG, UCLAMP1561P.TNT provides superior surge robustness (40 A), tighter clamping control (17.5 V), and temperature-invariant performance - making it optimal for next-generation USB PD and high-reliability 15 V industrial interfaces.
Availability
UCLAMP1561P.TNT is available at Aetrix Electronics and suitable for USB Type-C power delivery systems, industrial 15 V sensor buses, and automotive accessory inputs requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for UCLAMP1561P.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 connectivity.
The UCLAMP series belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered specifically to replace conventional TVS diodes in high-reliability 12–24 V power and interface protection applications.
FAQ
What is the maximum continuous operating voltage for UCLAMP1561P.TNT?
The UCLAMP1561P.TNT has a reverse stand-off voltage (VRWM) of 15 V, meaning it reliably blocks up to 15 V DC under normal operation while maintaining leakage below 600 nA. This rating aligns with USB PD 15 V profiles and standard 12 V industrial rails with tolerance margins. Exceeding 15 V risks premature conduction and accelerated wear.
How does UCLAMP1561P.TNT differ from standard TVS diodes in clamping behavior?
Unlike standard TVS diodes whose clamping voltage rises linearly with peak pulse current (VC = VBR + IPP × RDYN), UCLAMP1561P.TNT uses a triggered FET shunt that maintains ~17.5 V clamping from 1 A to 40 A. Its dynamic resistance is just 25 mΩ, resulting in stable suppression across temperature and surge magnitude - a key advantage verified in IEC 61000-4-5 testing.
Can UCLAMP1561P.TNT be used on high-speed data lines like USB 2.0 D+/D−?
UCLAMP1561P.TNT is not recommended for direct placement on USB 2.0 D+/D− lines due to its 185 pF junction capacitance, which would degrade signal integrity and fail USB 2.0 eye diagram requirements. It is intended for VBUS, CC, SBU, or power-rail protection. For data lines, Semtech recommends low-capacitance devices like RClamp3371ZC (<0.25 pF).
What PCB layout practices maximize surge performance of UCLAMP1561P.TNT?
To maximize surge performance, connect all three GND pins (1–3) and all three IN pins (4–6) with short, wide copper traces; place UCLAMP1561P.TNT within 5 mm of the protected connector; use ≥4 vias per GND pin to the internal ground plane; and avoid routing sensitive traces adjacent to the device. These practices minimize parasitic inductance and ensure full 40 A current sharing across parallel terminals.
Is UCLAMP1561P.TNT compliant with automotive AEC-Q200 stress testing?
UCLAMP1561P.TNT is not AEC-Q200 qualified. It is rated for −40°C to +125°C operation and meets IEC 61000-4-2/4-4/4-5, but lacks the extended temperature cycling, vibration, and humidity testing required for automotive qualification. For AEC-Q200 applications, Semtech offers the automotive-grade TDS1511Q variant - not UCLAMP1561P.TNT.
UCLAMP1561P.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):
- 15V (Max)
- Voltage - Breakdown (Min):
- 17.5V
- Voltage - Clamping (Max) @ Ipp:
- 28V
- Current - Peak Pulse (10/1000µs):
- 40A (8/20µs)
- Power - Peak Pulse:
- 1600W (1.6kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 220pF @ 1MHz (Max)
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SLP1608P2
UCLAMP1561P.TNT FAQ
1.How can I place an order for UCLAMP1561P.TNT through Aetrix?
Please submit a Request for Quotation (RFQ) for UCLAMP1561P.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 UCLAMP1561P.TNT reliable?
The price and inventory of UCLAMP1561P.TNT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UCLAMP1561P.TNT is usually 5 days.
3.What payment methods are accepted for UCLAMP1561P.TNT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UCLAMP1561P.TNT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UCLAMP1561P.TNT?
UCLAMP1561P.TNT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UCLAMP1561P.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 UCLAMP1561P.TNT?
For technical support, including UCLAMP1561P.TNT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UCLAMP1561P.TNT requirements.
6.How does Aetrix verify that UCLAMP1561P.TNT is sourced from the original manufacturer or authorized distributors?
All UCLAMP1561P.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 UCLAMP1561P.TNT meets industry standards.
7.What is the process for return or replacement of UCLAMP1561P.TNT?
All UCLAMP1561P.TNT units undergo pre-shipment inspection (PSI). If there is an issue with UCLAMP1561P.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 UCLAMP1561P.TNT part is unused and in its original packaging.
Return procedure for UCLAMP1561P.TNT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
UCLAMP1561P.TNT Tags
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