Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

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

Semtech Corporation ECLAMP1002A.TCT

Name: ECLAMP1002A.TCT
Brand: Semtech Corporation
SKU: ECLAMP1002A.TCT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: ECLAMP1002A.TCT

Manufacturer:: Semtech Corporation

Category:: Mixed Technology

Package:: SOT-563, SOT-666

Datasheet:: ECLAMP1002A.TCT.pdf

Description:: TVS DEVICE MIXED SC-89

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:6,217

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

ECLAMP1002A.TCT from Semtech is a transient diverting suppressor (TDS) designed for high-energy EOS/ESD protection of single 22V-rated I/O or power lines, featuring ±30kV IEC 61000-4-2 contact/air ESD immunity, 40A peak pulse current (8/20μs), and stable 27.5–28V clamping voltage across full temperature range (−40°C to +125°C). It protects USB Type-C power delivery buses, load switch inputs, and industrial I/O interfaces.

For engineers reviewing the ECLAMP1002A.TCT datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage stability under surge current and temperature, dynamic resistance (<20 mΩ), junction capacitance (175 pF), and DFN 1.6×1.6 mm package compatibility with high-density USB PD and IoT layouts.

Technical Context

The ECLAMP1002A.TCT uses a surge-rated FET as its primary protection element, activated by a precision trigger circuit when transient voltage exceeds breakdown threshold. Unlike conventional TVS diodes, it maintains near-constant clamping voltage due to decreasing R_DS(on) under increasing surge current.

It delivers 1120W peak pulse power (8/20μs), supports unsymmetrical line surge testing per IEC 61000-4-5 (±1kV, 1.2/50μs, R_S = 42Ω), and achieves ±4kV EFT immunity (IEC 61000-4-4, 5/50ns). Its solid-state architecture eliminates thermal derating limitations seen in junction-based TVS devices.

Key Specifications

Parameter	Value and Actual Design Meaning
Working Voltage	22 V - matches nominal USB PD bus voltage and withstand rating of downstream controllers.
Clamping Voltage	27.5–28 V at 24–40 A (1.2/50μs + 8/20μs combo wave) - stays below 30 V damage threshold of most 24V-rated PD ICs across full operating temperature range.
Peak Pulse Current	40 A (8/20μs) - meets IEC 61000-4-5 Level 3 industrial surge requirements for protected power/data lines.
Dynamic Resistance	20 mΩ - enables low-voltage drop during conduction, minimizing energy dissipation in the device and reducing thermal stress.
Junction Capacitance	175 pF at 22 V, 1 MHz - compatible with DC/low-speed signal lines (e.g., CC, SBU, VBUS monitoring), not superspeed lanes.
ESD Withstand	±30 kV contact & air (IEC 61000-4-2) - exceeds Level 4 immunity for handheld and portable industrial equipment.
Operating Temp	−40°C to +125°C - supports operation in automotive cabin, industrial control cabinets, and outdoor IoT enclosures.

Pinout & Package

Package: DFN 1.6 mm × 1.6 mm × 0.55 mm, 6-lead, RoHS-compliant, UL 94V-0 molding compound, lead-free finish.

Pin/Terminal	Circuit Role	Design Meaning
1, 2, 3	GND	Common ground return path for surge current; all three pins must be connected to maximize current sharing and minimize parasitic inductance.
4, 5, 6	IN	Protected line input (e.g., VBUS, load switch input); parallel connection ensures uniform current distribution and full 40A rating.

Key Features

Feature	Design Value
Constant-clamp architecture	Clamping voltage varies <0.5 V from 24A to 40A surge - eliminates need for overrating IPP to meet voltage margin, simplifying system-level surge margin analysis.
Temperature-stable clamping	Clamps at ~27.6 V from −40°C to +125°C - removes thermal derating uncertainty present in standard TVS diodes, enabling robust design without worst-case temperature sweeps.
Low dynamic resistance	20 mΩ - reduces I²R heating during surge, allowing smaller PCB copper and eliminating need for thermal pads or heatsinking.
High-energy surge handling	1120 W peak pulse power - sustains multiple 40A transients without degradation, suitable for field-deployed industrial and metering equipment.
Compact footprint	1.6 mm × 1.6 mm DFN - saves >60% board area vs. comparable SO-8 or SOT-23 TVS solutions, critical for USB-C connector proximity placement.

Applications

USB Type-C Power Delivery Bus Protection	Load Switch Input Protection
Use Scenario: Protecting VBUS lines in USB-C ports supporting up to 20V/5A PD negotiation, exposed to ESD and lightning-induced surges. IC Role / Device Role / Timing Role: Primary EOS shunt protector placed between connector and load switch or PD controller, activated within nanoseconds of overvoltage detection. Use Value: Maintains clamping at ≤28 V across full temperature range and 40A surge, preventing latch-up or gate oxide damage in downstream 24V-rated PD controllers.	Use Scenario: Safeguarding input terminals of industrial-grade load switches (e.g., HS2950P) in remote meters, robotics, and factory automation systems. IC Role / Device Role / Timing Role: Front-end transient diverter that routes surge energy away from the load switch's internal FET, preserving overvoltage and overcurrent protection integrity. Use Value: Prevents permanent failure of load switch due to V_DS overstress during 1kV/42Ω surge events, extending field reliability without adding external crowbar circuits.
Industrial I/O Line Protection	IoT Device Power Rail Protection
Use Scenario: Securing 24V DC input rails on programmable logic controllers (PLCs), HMI panels, and sensor interface modules subject to induced surges in noisy factory environments. IC Role / Device Role / Timing Role: Solid-state transient suppressor replacing traditional MOV+TVS stacks, providing faster response and no wear-out mechanism. Use Value: Delivers repeatable 40A surge handling without parameter drift after repeated events-critical for maintenance-free operation in unattended industrial deployments.	Use Scenario: Shielding battery-charged or PoE-powered smart sensors and edge nodes against ESD during handling and lightning-coupled transients in building automation networks. IC Role / Device Role / Timing Role: Low-capacitance, high-surge-capability protector on main power input, co-located with connector to minimize trace inductance. Use Value: Enables compact, certified Class B ESD immunity (±30kV) in space-constrained IoT modules while maintaining <1 μA leakage at 22V for multi-year battery life.

USB Type-C Power Delivery Bus Protection

Load Switch Input Protection

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

IC Role / Device Role / Timing Role: Primary EOS shunt protector placed between connector and load switch or PD controller, activated within nanoseconds of overvoltage detection.

Use Value: Maintains clamping at ≤28 V across full temperature range and 40A surge, preventing latch-up or gate oxide damage in downstream 24V-rated PD controllers.

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

IC Role / Device Role / Timing Role: Front-end transient diverter that routes surge energy away from the load switch's internal FET, preserving overvoltage and overcurrent protection integrity.

Use Value: Prevents permanent failure of load switch due to V_DS overstress during 1kV/42Ω surge events, extending field reliability without adding external crowbar circuits.

Industrial I/O Line Protection

IoT Device Power Rail Protection

Use Scenario: Securing 24V DC input rails on programmable logic controllers (PLCs), HMI panels, and sensor interface modules subject to induced surges in noisy factory environments.

IC Role / Device Role / Timing Role: Solid-state transient suppressor replacing traditional MOV+TVS stacks, providing faster response and no wear-out mechanism.

Use Value: Delivers repeatable 40A surge handling without parameter drift after repeated events-critical for maintenance-free operation in unattended industrial deployments.

Use Scenario: Shielding battery-charged or PoE-powered smart sensors and edge nodes against ESD during handling and lightning-coupled transients in building automation networks.

IC Role / Device Role / Timing Role: Low-capacitance, high-surge-capability protector on main power input, co-located with connector to minimize trace inductance.

Use Value: Enables compact, certified Class B ESD immunity (±30kV) in space-constrained IoT modules while maintaining <1 μA leakage at 22V for multi-year battery life.

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	Same functional architecture, identical 22V working voltage, 40A rating, and DFN 1.6×1.6 mm package; differs only in marking code and reel packaging (3,000 pcs/reel vs. ECLAMP1002A.TCT's standard tape-and-reel).	Directly interchangeable in USB-C and load switch designs; validated for same IEC 61000-4-2/4-4/4-5 test profiles.	Select TDS2211P.C when sourcing from Semtech's standard distribution channel with full traceability and date-code visibility.
uClamp2411ZA.TCT	24V working voltage, lower 20A peak pulse rating, higher 30V clamping voltage, and same 6-pin DFN footprint; optimized for CC/SBU lines rather than VBUS.	Not suitable for 22V power rail protection due to higher clamping and lower surge rating; intended for low-current, low-capacitance data-line protection.	Choose uClamp2411ZA.TCT only for auxiliary USB-C signals (CC, SBU); avoid for VBUS or load switch input where ECLAMP1002A.TCT's 40A/28V performance is required.

Compared with TDS2211P.C, ECLAMP1002A.TCT offers identical electrical and mechanical specs but may differ in traceability labeling and minimum order quantity; versus uClamp2411ZA.TCT, ECLAMP1002A.TCT provides 2× higher surge current headroom and 2V lower clamping-critical for protecting 22V power rails without risking downstream IC damage.

Availability

ECLAMP1002A.TCT is available at Aetrix Electronics and suitable for USB Type-C power delivery systems, industrial load switch protection, and IoT device power rail hardening requiring stable component supply, long-term lifecycle assurance, and compliance with IEC 61000-4-2/4-4/4-5 standards.

Supply support for ECLAMP1002A.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 high-performance analog and mixed-signal semiconductors for power management, protection, sensing, and connectivity.

ECLAMP1002A.TCT belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered to replace conventional TVS diodes in high-reliability 22V power and interface protection applications where clamping stability and surge endurance are critical.

FAQ

What is the maximum clamping voltage of ECLAMP1002A.TCT under full-rated surge conditions?

ECLAMP1002A.TCT clamps at 27.5–28 V when subjected to 40 A peak pulse current (8/20 μs current waveform combined with 1.2/50 μs voltage waveform, R_S = 2 Ω), and this value remains stable from −40°C to +125°C. This performance is confirmed in the official Semtech datasheet Rev 2.5, page 2, Electrical Characteristics table.

Is ECLAMP1002A.TCT pin-compatible with other Semtech TDS devices like TDS2211P.C?

Yes, ECLAMP1002A.TCT shares identical pin configuration (pins 1–3 = GND, pins 4–6 = IN), mechanical dimensions (DFN 1.6 × 1.6 mm), and thermal pad layout with TDS2211P.C. Both parts use the same land pattern and PCB footprint, enabling direct substitution without layout changes.

Can ECLAMP1002A.TCT be used to protect USB-C superspeed differential pairs (TX/RX)?

No, ECLAMP1002A.TCT is not suitable for USB-C superspeed lanes due to its 175 pF junction capacitance, which would severely degrade signal integrity. For TX/RX lines, Semtech recommends low-capacitance devices such as RClamp3371ZC (<0.25 pF); ECLAMP1002A.TCT is intended for VBUS, CC, SBU, or load switch input protection only.

What is the reverse leakage current specification for ECLAMP1002A.TCT at 22 V and 25°C?

At 22 V reverse stand-off voltage and 25°C ambient temperature, ECLAMP1002A.TCT exhibits a reverse leakage current of 130–600 nA, as specified in the Electrical Characteristics table (page 2 of Semtech datasheet Rev 2.5). This ultra-low leakage supports energy-efficient designs and long battery life in always-on IoT applications.

Does ECLAMP1002A.TCT require a thermal pad or heatsink for 40 A surge handling?

No, ECLAMP1002A.TCT does not require a thermal pad or external heatsink. Its solid-state FET-based architecture dissipates surge energy with minimal I²R heating, and the datasheet explicitly states "no thermal pad is needed" (page 6, Layout Guidelines). Proper PCB grounding via all three GND pins suffices for full 40 A capability.

ECLAMP1002A.TCT Specifications

Product attributes: Attribute value

Manufacturer:: Semtech Corporation

Package/Case:: SOT-563, SOT-666

Series:: EMIClamp®

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Voltage - Clamping:: -

Technology:: Mixed Technology

Number of Circuits:: 2

Applications:: General Purpose

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SC-89 (SOT-666)

ECLAMP1002A.TCT FAQ

1.How can I place an order for ECLAMP1002A.TCT through Aetrix?

Please submit a Request for Quotation (RFQ) for ECLAMP1002A.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 ECLAMP1002A.TCT reliable?

The price and inventory of ECLAMP1002A.TCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ECLAMP1002A.TCT is usually 5 days.

3.What payment methods are accepted for ECLAMP1002A.TCT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ECLAMP1002A.TCT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ECLAMP1002A.TCT?

ECLAMP1002A.TCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ECLAMP1002A.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 ECLAMP1002A.TCT?

For technical support, including ECLAMP1002A.TCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ECLAMP1002A.TCT requirements.

6.How does Aetrix verify that ECLAMP1002A.TCT is sourced from the original manufacturer or authorized distributors?

All ECLAMP1002A.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 ECLAMP1002A.TCT meets industry standards.

7.What is the process for return or replacement of ECLAMP1002A.TCT?

All ECLAMP1002A.TCT units undergo pre-shipment inspection (PSI). If there is an issue with ECLAMP1002A.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 ECLAMP1002A.TCT part is unused and in its original packaging.

Return procedure for ECLAMP1002A.TCT:

1.Submit a request within 90 days.

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

Tech Hub

2026-09-11 Comparator Circuit: Voltage Thresholds, Op-Amp Differences, LM393 and Practical Design

Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.

2026-09-10 Schmitt Trigger Explained: Hysteresis, Circuits, Inverters and Applications

Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…

2026-09-09 Counterfeit Electronic Components: How to Detect, Authenticate, and Test Suspect Parts

Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …

2026-09-08 Obsolete Electronic Components: How to Source and Evaluate Replacements

A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.

2026-09-07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained

TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.

2026-09-04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-02 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …