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Semtech Corporation ECLAMP3202A.TCT
- Part No.:
- ECLAMP3202A.TCT
- Manufacturer:
- Semtech Corporation
- Category:
- Mixed Technology
- Package:
- SOT-563, SOT-666
- Datasheet:
-
ECLAMP3202A.TCT.pdf
- Description:
- TVS DEVICE MIXED SC-89
- Quantity:
- Payment:
- Shipping:
Inventory:6,322
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Product details
Overview
ECLAMP3202A.TCT from Semtech is a transient diverting suppressor designed for high-energy EOS/ESD protection of single 22V-rated I/O or power lines, featuring ±30kV IEC 61000-4-2 ESD immunity, 40A peak pulse current (8/20μs), 27.5–28V clamping voltage at 24–40A, and 175pF junction capacitance - deployed in USB Type-C PD input protection and industrial load switch front-end circuits.
For engineers reviewing the ECLAMP3202A.TCT datasheet, pinout, applications, or equivalent options, key selection criteria include clamping stability across temperature and current, low dynamic resistance (20mΩ), DFN-6 package footprint compatibility, and compliance with IEC 61000-4-2/4-4/4-5 surge standards for robust system-level protection.
Technical Context
ECLAMP3202A.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 threshold. Unlike conventional TVS diodes, its clamping voltage remains nearly constant (27.5–28V) across 24–40A IPP and −40°C to +125°C due to decreasing RDS(on) under surge conditions.
The device implements a three-terminal symmetric configuration: pins 4–6 serve as protected line inputs, pins 1–3 as ground return paths, and operates with 22V reverse stand-off voltage (VRWM) and 25–27.9V breakdown (VBR). Its 175pF capacitance at 22V/1MHz and 130–600nA leakage support high-speed interface protection without signal integrity degradation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22V - defines maximum continuous DC 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 events. |
| Peak Pulse Current | 40A (8/20μs) - meets IEC 61000-4-5 Level 4 industrial surge immunity requirements for 22V bus lines. |
| ESD Withstand | ±30kV contact & air (IEC 61000-4-2) - exceeds Level 4 ESD immunity for handheld and portable electronics interfaces. |
| Dynamic Resistance | 20mΩ (measured 1–40A, 8/20μs) - enables stable clamping by minimizing voltage rise ΔV = I × RDYN under increasing surge current. |
| Junction Capacitance | 175pF at 22V, 1MHz - low enough to avoid signal distortion on 100Mbps+ power delivery control lines (CC/SBU) and load switch enable paths. |
Pinout & Package
Package: DFN-6 (1.6mm × 1.6mm × 0.55mm), RoHS-compliant, Pb-free, UL 94V-0 molding compound, tape-and-reel packaging.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pins 1, 2, 3 | GND | Low-inductance ground return path - all three must be connected to PCB ground plane via multiple vias to sustain 40A surge current without thermal failure. |
| Pins 4, 5, 6 | IN | Protected line input - parallel connection of all three pins minimizes trace inductance and distributes surge current evenly across internal FET channels. |
Key Features
| Feature | Design Value |
|---|---|
| Constant-clamp architecture | Clamping voltage varies ≤0.5V across full 24–40A range and −40°C to +125°C - eliminates derating uncertainty in thermal-critical environments. |
| FET-based shunt topology | Replaces PN-junction TVS with <0.1Ω RDS(on) - dissipates surge energy in channel rather than junction, enabling higher IPP without thermal runaway. |
| High EFT immunity | ±4kV per IEC 61000-4-4 (5/50ns, 100kHz/5kHz bursts) - protects against repetitive fast transients in motor drives and industrial PLC I/O modules. |
| Low leakage & capacitance | 600nA max IR at 22V and 175pF at 1MHz - preserves signal integrity on USB PD CC lines and load switch enable/control paths. |
Applications
| USB Type-C Power Delivery Input Protection | Industrial Load Switch Front-End Protection |
|---|---|
|
Use Scenario: Protecting VBus input of USB Type-C receptacles supporting up to 20V/5A PD negotiation against lightning-induced surges and connector hot-plug ESD. IC Role / Device Role / Timing Role: Transient diverting suppressor placed directly at connector, clamping transients before they reach PD controller and e-fuse ICs. Use Value: Maintains 27.5–28V clamping across temperature and current - prevents overvoltage damage to 24V-tolerant PD controllers while avoiding false triggering during normal 20V operation. |
Use Scenario: Shielding enable, overvoltage, and current-limit inputs of industrial-grade load switches (e.g., HS2950P) in remote meters and robotics power rails. IC Role / Device Role / Timing Role: Primary EOS barrier on VIN and EN pins, absorbing 40A surges to prevent latch-up or gate oxide rupture in internal MOSFET drivers. Use Value: 20mΩ dynamic resistance limits voltage overshoot to <1V above clamp level during fast-rising transients - preserves functional safety margins of downstream analog monitoring circuitry. |
| IoT Device Power Bus Protection | Storage Device 22V Supply Line Protection |
|
Use Scenario: Securing 22V auxiliary power inputs in battery-backed IoT gateways exposed to outdoor ESD and induced surges from nearby AC wiring. IC Role / Device Role / Timing Role: Standalone transient suppressor on main DC input rail, coordinated with upstream fuse and downstream LDO regulators. Use Value: ±30kV ESD rating and 4kV EFT immunity ensure reliable operation in uncontrolled deployment environments without requiring additional filtering stages. |
Use Scenario: Safeguarding 22V supply lines feeding NVMe SSD power management ICs and PCIe retimers in enterprise storage enclosures. IC Role / Device Role / Timing Role: High-energy clamping device placed at backplane connector entry point to absorb coupled transients from adjacent high-speed data lanes. Use Value: 1120W peak pulse power handling (8/20μs) prevents catastrophic failure during multi-kV surge events - maintains data integrity and avoids forced shutdowns. |
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 pinout (GND on pins 1–3, IN on 4–6), but marked with "T22" code instead of "ECLAMP3202A.TCT". | Same use cases: USB PD, load switch, industrial 22V bus - validated in Semtech reference designs including Figure 4 and Figure 5. | Select TDS2211P.C when sourcing from Semtech's standard distribution channel; identical performance and layout compatibility. |
| uClamp2411ZA.TCT | 24V working voltage, lower 24A IPP rating, 25V clamping at 24A, 120pF capacitance - optimized for CC/SBU lines rather than main VBus. | Targeted at USB Type-C configuration channel and sideband use lines - not rated for 40A surges or 22V continuous bus protection. | Choose uClamp2411ZA.TCT only for secondary signal-line protection; insufficient for primary 22V power rail duty. |
Compared with TDS2211P.C, ECLAMP3202A.TCT offers identical protection performance and drop-in layout compatibility, while uClamp2411ZA.TCT serves a distinct, lower-energy signal-line role and cannot substitute for main bus protection.
Availability
ECLAMP3202A.TCT is available at Aetrix Electronics and suitable for USB Type-C PD systems, industrial load switch front-ends, and IoT 22V power bus applications requiring stable component supply, long-term lifecycle assurance, and compliance with IEC 61000-4-2/4-4/4-5 standards.
Supply support for ECLAMP3202A.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 ICs for precision sensing, protection, and signal integrity.
ECLAMP3202A.TCT belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered to replace traditional TVS diodes in high-reliability 22V power and interface protection applications where clamping stability and surge endurance are critical.
FAQ
What is the maximum continuous operating voltage for ECLAMP3202A.TCT?
ECLAMP3202A.TCT has a reverse stand-off voltage (VRWM) of 22V, meaning it can continuously block up to 22V DC without significant leakage or conduction. This makes ECLAMP3202A.TCT suitable for protecting 20V USB PD VBus lines and other 22V-rated industrial power rails where sustained voltage stress occurs.
How does ECLAMP3202A.TCT achieve stable clamping voltage across temperature and current?
ECLAMP3202A.TCT uses a surge-rated FET activated by a precision trigger circuit - as surge current increases, the FET's RDS(on) decreases, maintaining clamping voltage near 27.5–28V from 24A to 40A and across −40°C to +125°C. This contrasts with TVS diodes whose clamping rises linearly with current and temperature.
Is ECLAMP3202A.TCT pin-compatible with TDS2211P.C?
Yes - ECLAMP3202A.TCT and TDS2211P.C share identical DFN-6 package dimensions (1.6mm × 1.6mm), pin assignment (pins 1–3 = GND, pins 4–6 = IN), and thermal/mechanical specifications. They are functionally and physically interchangeable in existing PCB layouts.
What IEC standards does ECLAMP3202A.TCT meet for system-level ESD and surge immunity?
ECLAMP3202A.TCT meets IEC 61000-4-2 (±30kV contact/air), IEC 61000-4-4 (±4kV EFT), and IEC 61000-4-5 (40A 8/20μs, ±1kV 1.2/50μs) - covering full system-level immunity requirements for industrial, computing, and consumer electronics with 22V operating rails.
Can ECLAMP3202A.TCT be used to protect high-speed data lines like USB SuperSpeed or PCIe?
No - ECLAMP3202A.TCT's 175pF junction capacitance is too high for differential high-speed data lines (which require <0.3pF). It is intended for power and control lines (VBus, CC, EN, OVP); for SuperSpeed lanes, Semtech recommends RClamp3371ZC (<0.25pF) instead of ECLAMP3202A.TCT.
ECLAMP3202A.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)
ECLAMP3202A.TCT FAQ
1.How can I place an order for ECLAMP3202A.TCT through Aetrix?
Please submit a Request for Quotation (RFQ) for ECLAMP3202A.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 ECLAMP3202A.TCT reliable?
The price and inventory of ECLAMP3202A.TCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ECLAMP3202A.TCT is usually 5 days.
3.What payment methods are accepted for ECLAMP3202A.TCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ECLAMP3202A.TCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ECLAMP3202A.TCT?
ECLAMP3202A.TCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ECLAMP3202A.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 ECLAMP3202A.TCT?
For technical support, including ECLAMP3202A.TCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ECLAMP3202A.TCT requirements.
6.How does Aetrix verify that ECLAMP3202A.TCT is sourced from the original manufacturer or authorized distributors?
All ECLAMP3202A.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 ECLAMP3202A.TCT meets industry standards.
7.What is the process for return or replacement of ECLAMP3202A.TCT?
All ECLAMP3202A.TCT units undergo pre-shipment inspection (PSI). If there is an issue with ECLAMP3202A.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 ECLAMP3202A.TCT part is unused and in its original packaging.
Return procedure for ECLAMP3202A.TCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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