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Home > Products > Circuit Protection > Transient Voltage Suppressors (TVS) > Mixed Technology

Semtech Corporation ECLAMP2515K.TCT

Name: ECLAMP2515K.TCT
Brand: Semtech Corporation
SKU: ECLAMP2515K.TCT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ECLAMP2515K.TCT

Manufacturer:: Semtech Corporation

Category:: Mixed Technology

Package:: 16-UFDFN Exposed Pad

Datasheet:: ECLAMP2515K.TCT.pdf

Description:: TVS DEVICE MIXED SLP3313P16T

Quantity:: RFQ Add To RFQ list

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Inventory:3,000

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Product details

Overview

ECLAMP2515K.TCT from Semtech is a transient diverting suppressor designed for high-energy EOS/ESD protection of 22V-rated power or I/O lines, featuring ±30kV IEC 61000-4-2 ESD immunity, 40A peak pulse current (8/20μs), 27.5–28V clamping voltage at 24–40A, and 20mΩ dynamic resistance - deployed in USB Type-C PD input protection and industrial load switch front-end circuits.

For engineers reviewing the ECLAMP2515K.TCT datasheet, pinout, applications, or equivalent options, key selection criteria include clamping stability across temperature and current, low dynamic resistance for minimal voltage overshoot, DFN-6 package layout compatibility, and compliance with IEC 61000-4-2/4-4/4-5 surge standards.

Technical Context

ECLAMP2515K.TCT uses a surge-rated FET as its primary protection element, activated by a precision trigger circuit that turns on the shunt path when transient voltage exceeds breakdown. Unlike conventional TVS diodes, its clamping voltage remains nearly constant (27.5–28V) from 24A to 40A due to decreasing R_DS(on) under surge conditions.

The device operates over –40°C to +125°C, maintains stable 22V reverse stand-off voltage and <600nA leakage at VRWM, and delivers 1120W peak pulse power. Its 175pF junction capacitance at 22V/1MHz supports moderate-speed bus protection without signal integrity compromise.

Key Specifications

Parameter	Value and Actual Design Meaning
Working Voltage	22V - defines maximum continuous DC or RMS operating voltage on protected line without leakage or conduction.
Clamping Voltage	27.5–28V at 24–40A (1.2/50μs + 8/20μs combo wave, RS = 2Ω) - ensures downstream ICs (e.g., USB PD controllers) remain below damage threshold during surge.
Peak Pulse Current	40A (8/20μs) - meets IEC 61000-4-5 Level 4 industrial surge immunity requirements for 22V systems.
ESD Withstand	±30kV contact & air (IEC 61000-4-2) - exceeds Level 4 ESD immunity for handheld and connector-facing applications.
Dynamic Resistance	20mΩ (measured 1–40A, 8/20μs) - enables flat clamping curve and minimizes voltage rise under increasing surge current.
Junction Capacitance	175pF at 22V, 1MHz - compatible with USB Type-C VBUS and load switch inputs where sub-nF capacitance avoids signal distortion.

Pinout & Package

Package: DFN 1.6mm × 1.6mm × 0.55mm, 6-lead, RoHS-compliant, UL 94V-0 molding compound, lead-free finish, tape-and-reel packaging (3,000 pcs/reel).

Pin/Terminal	Circuit Role	Design Meaning
1, 2, 3	GND	Common ground terminals - all three must be connected to minimize parasitic inductance and maximize 40A surge current handling.
4, 5, 6	IN	Protected line input - tied together to interface with VBUS or power rail; shared connection ensures uniform current sharing and thermal distribution.

Key Features

Feature	Design Value
Constant-clamp architecture	Clamping voltage varies ≤0.5V across full 24–40A surge range - eliminates design margin inflation needed with traditional TVS diodes.
FET-based shunt protection	Surge energy diverted through low-R_DS(on) channel instead of PN-junction - reduces thermal stress and improves reliability at high ambient temperatures.
Temperature-stable performance	Clamping remains 27.5–28V from –40°C to +125°C - enables robust protection in industrial and automotive under-hood environments.
High EFT immunity	±4kV per IEC 61000-4-4 (5/50ns, 5kHz & 100kHz bursts) - protects against repetitive fast transients in motor drives and PLC I/O modules.

Applications

USB Type-C Power Delivery Input Protection	Industrial Load Switch Front-End Protection
Use Scenario: Protecting VBUS lines in USB-C ports supporting up to 20V/5A PD negotiation, exposed to ESD at connectors and lightning-induced surges on long cables. IC Role / Device Role / Timing Role: Transient diverting suppressor placed directly at Type-C receptacle, clamping surges before reaching PD controller and load switch ICs. Use Value: Maintains 27.5–28V clamping across temperature and current - prevents false overvoltage shutdown and ensures PD controller survival under worst-case ±1kV IEC 61000-4-5 surges.	Use Scenario: Safeguarding input pins of industrial-grade load switches (e.g., HS2950P) in remote meters, robotics, and factory automation equipment. IC Role / Device Role / Timing Role: Primary EOS barrier on VIN rail, limiting transient voltage to protect internal FET gate oxide and overvoltage protection circuitry. Use Value: 20mΩ dynamic resistance limits voltage overshoot to <28V even at 40A - avoids latch-up or permanent damage to load switch during 8/20μs surges.
IoT Device Power Rail Protection	Storage Device DC Power Input Protection
Use Scenario: Securing 22V-rated auxiliary power inputs in battery-backed IoT gateways and edge nodes deployed in electrically noisy environments. IC Role / Device Role / Timing Role: Standalone surge protector on main DC input, coordinated with upstream fuse and downstream LDO/regulator. Use Value: ±30kV ESD rating and 175pF capacitance allow compact placement near board edge without compromising RF-sensitive wireless subsystems.	Use Scenario: Hardening 22V supply rails of NVMe SSD enclosures and enterprise HDD backplanes against hot-plug transients and system-level ESD coupling. IC Role / Device Role / Timing Role: First-line defense on power entry, absorbing energy before it propagates into PMICs and flash controller power domains. Use Value: 1120W peak pulse power rating handles multiple sequential surges - extends field life in datacenter infrastructure with frequent maintenance cycles.

USB Type-C Power Delivery Input Protection

Industrial Load Switch Front-End Protection

Use Scenario: Protecting VBUS lines in USB-C ports supporting up to 20V/5A PD negotiation, exposed to ESD at connectors and lightning-induced surges on long cables.

IC Role / Device Role / Timing Role: Transient diverting suppressor placed directly at Type-C receptacle, clamping surges before reaching PD controller and load switch ICs.

Use Value: Maintains 27.5–28V clamping across temperature and current - prevents false overvoltage shutdown and ensures PD controller survival under worst-case ±1kV IEC 61000-4-5 surges.

Use Scenario: Safeguarding input pins of industrial-grade load switches (e.g., HS2950P) in remote meters, robotics, and factory automation equipment.

IC Role / Device Role / Timing Role: Primary EOS barrier on VIN rail, limiting transient voltage to protect internal FET gate oxide and overvoltage protection circuitry.

Use Value: 20mΩ dynamic resistance limits voltage overshoot to <28V even at 40A - avoids latch-up or permanent damage to load switch during 8/20μs surges.

IoT Device Power Rail Protection

Storage Device DC Power Input Protection

Use Scenario: Securing 22V-rated auxiliary power inputs in battery-backed IoT gateways and edge nodes deployed in electrically noisy environments.

IC Role / Device Role / Timing Role: Standalone surge protector on main DC input, coordinated with upstream fuse and downstream LDO/regulator.

Use Value: ±30kV ESD rating and 175pF capacitance allow compact placement near board edge without compromising RF-sensitive wireless subsystems.

Use Scenario: Hardening 22V supply rails of NVMe SSD enclosures and enterprise HDD backplanes against hot-plug transients and system-level ESD coupling.

IC Role / Device Role / Timing Role: First-line defense on power entry, absorbing energy before it propagates into PMICs and flash controller power domains.

Use Value: 1120W peak pulse power rating handles multiple sequential surges - extends field life in datacenter infrastructure with frequent maintenance cycles.

Equivalent & Alternatives

The following parts are listed as comparable options for similar transient suppression applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TDS2211P.C	Identical electrical specs, same DFN-6 package, identical marking (T22), but differs in reel quantity (3,000 vs. 10,000) and date-code format.	Same USB PD, load switch, and industrial use cases; validated in Semtech reference designs for Type-C protection.	Select TDS2211P.C for volume procurement where tape-and-reel logistics align with production planning.
SMAJ22A	Standard unidirectional TVS diode; 22V V_RWM, 35.5V V_C @ 12.3A (8/20μs); higher clamping, no constant-clamp behavior, 10× higher dynamic resistance (~200mΩ).	Suitable only for lower-energy surges (<12A) or non-critical lines where 35.5V clamping is acceptable.	Choose SMAJ22A only if cost sensitivity outweighs clamping performance and temperature stability requirements.

Compared with ECLAMP2515K.TCT, TDS2211P.C offers identical protection performance and drop-in PCB compatibility, while SMAJ22A requires significant derating and layout revalidation due to higher clamping voltage and thermal limitations under repeated surge stress.

Availability

ECLAMP2515K.TCT is available at Aetrix Electronics and suitable for USB Type-C PD interfaces, industrial load switch inputs, IoT power rails, and storage device DC inputs requiring stable component supply, consistent surge performance, and long-term lifecycle support.

Supply support for ECLAMP2515K.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 U.S.-based fabless semiconductor company specializing in analog and mixed-signal ICs for precision sensing, protection, and signal integrity solutions.

ECLAMP2515K.TCT belongs to Semtech's Transient Diverting Suppressor (TDS) family, engineered to replace conventional TVS diodes in high-reliability 22V power and interface protection applications demanding flat clamping and temperature resilience.

FAQ

What is the primary protection function of ECLAMP2515K.TCT?

ECLAMP2515K.TCT functions as a transient diverting suppressor that shunts high-energy EOS/ESD events to ground using a surge-rated FET. It maintains a stable 27.5–28V clamping voltage across 24–40A surge currents and –40°C to +125°C, protecting 22V-rated components like USB PD controllers and load switches. The ECLAMP2515K.TCT achieves this via a precision trigger circuit and low-R_DS(on) FET, unlike conventional TVS diodes.

Does ECLAMP2515K.TCT meet IEC 61000-4-5 surge immunity standards?

Yes, ECLAMP2515K.TCT is rated for 40A peak pulse current under the IEC 61000-4-5 8/20μs waveform and supports ±1kV unsymmetrical surge testing (RS = 42Ω, CS = 0.5μF), meeting Level 4 industrial surge immunity requirements. Its 1120W peak pulse power rating and stable clamping ensure reliable compliance - critical for ECLAMP2515K.TCT deployment in industrial equipment and USB PD infrastructure.

How does ECLAMP2515K.TCT differ from standard TVS diodes in clamping behavior?

ECLAMP2515K.TCT uses a FET-based shunt architecture that yields near-constant clamping voltage (27.5–28V) across its full 24–40A surge range and operating temperature, whereas standard TVS diodes exhibit linear clamping rise (VC = VBR + IPP × RDYN) due to fixed dynamic resistance. This makes ECLAMP2515K.TCT more predictable in high-temperature or high-current scenarios - a key advantage confirmed in Semtech's comparative characterization of ECLAMP2515K.TCT versus legacy TVS devices.

What is the recommended PCB layout for ECLAMP2515K.TCT?

Place ECLAMP2515K.TCT as close as possible to the protected connector or power entry point. Connect all three GND pins (1, 2, 3) to a solid ground plane using multiple vias, and tie all three IN pins (4, 5, 6) together with a short, wide trace. Avoid thermal pads - energy is dissipated in the FET channel, not the junction. This layout minimizes inductance and ensures ECLAMP2515K.TCT delivers full 40A surge capability, as verified in Semtech's application note AN-1012.

Is ECLAMP2515K.TCT compatible with automated SMT assembly processes?

Yes, ECLAMP2515K.TCT uses a standard DFN-6 package (1.6mm × 1.6mm × 0.55mm) with lead-free, RoHS-compliant termination and UL 94V-0 molding compound - fully compatible with reflow soldering profiles per J-STD-020. Its marking code "T22" and pin-1 dot enable optical recognition, and the 3,000-piece tape-and-reel format supports high-speed pick-and-place. ECLAMP2515K.TCT has been qualified for IPC-A-610 Class 2 and Class 3 assembly standards.

ECLAMP2515K.TCT Specifications

Product attributes: Attribute value

Manufacturer:: Semtech Corporation

Package/Case:: 16-UFDFN Exposed Pad

Series:: EMIClamp®

Packaging:: Tape & Reel (TR)

Product Status:: Active

Voltage - Clamping:: -

Technology:: Mixed Technology

Number of Circuits:: 6

Applications:: General Purpose

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SLP3313P16T

ECLAMP2515K.TCT FAQ

1.How can I place an order for ECLAMP2515K.TCT through Aetrix?

Please submit a Request for Quotation (RFQ) for ECLAMP2515K.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 ECLAMP2515K.TCT reliable?

The price and inventory of ECLAMP2515K.TCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ECLAMP2515K.TCT is usually 5 days.

3.What payment methods are accepted for ECLAMP2515K.TCT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ECLAMP2515K.TCT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ECLAMP2515K.TCT?

ECLAMP2515K.TCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ECLAMP2515K.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 ECLAMP2515K.TCT?

For technical support, including ECLAMP2515K.TCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ECLAMP2515K.TCT requirements.

6.How does Aetrix verify that ECLAMP2515K.TCT is sourced from the original manufacturer or authorized distributors?

All ECLAMP2515K.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 ECLAMP2515K.TCT meets industry standards.

7.What is the process for return or replacement of ECLAMP2515K.TCT?

All ECLAMP2515K.TCT units undergo pre-shipment inspection (PSI). If there is an issue with ECLAMP2515K.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 ECLAMP2515K.TCT part is unused and in its original packaging.

Return procedure for ECLAMP2515K.TCT:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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