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Home > Products > Circuit Protection > Surge Suppression Ics

Semtech Corporation TDS1411P.C

Name: TDS1411P.C
Brand: Semtech Corporation
SKU: TDS1411P.C
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TDS1411P.C

Manufacturer:: Semtech Corporation

Category:: Surge Suppression Ics

Package:: 6-UFDFN

Datasheet:: TDS1411P.C.pdf

Description:: SURGESWITCH, 1-LINE 14V EOS PROT

Quantity:: RFQ Add To RFQ list

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Inventory:2,840

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Product details

Overview

TDS1411P.C from Semtech is a transient diverting suppressor (SurgeSwitch™) designed for 14V power line or I/O protection in industrial and IoT systems. It delivers ±30kV ESD immunity (IEC 61000-4-2), 40A peak pulse current (8/20μs), constant 19.8V clamping voltage at 40A, 20mΩ dynamic resistance, and operates from –55°C to +125°C. It protects one 14V bus using solid-state FET-based shunting.

For engineers reviewing the TDS1411P.C 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 integration into space-constrained 12V–14V power rails, and compliance with IEC 61000-4-4/5 surge standards.

Technical Context

The TDS1411P.C uses a surge-rated MOSFET as its primary protection element, activated by a precision trigger circuit that senses overvoltage events. Unlike conventional TVS diodes, it achieves near-constant clamping voltage (18.8–19.8V) across 24A–40A pulse currents due to decreasing R_DS(on) under surge conditions.

Its functional architecture separates input (pins 4–6) and ground (pins 1–3) terminals to minimize parasitic inductance, enabling high-energy diversion without thermal pad requirements. The device maintains stable clamping from –55°C to +125°C and exhibits only 145pF junction capacitance at 14V, supporting high-speed signal integrity on protected lines.

Key Specifications

Parameter	Value and Actual Design Meaning
Working Voltage	14V - defines maximum continuous DC operating voltage of protected line
Clamping Voltage	19.8V at 40A (8/20μs) - limits transient overshoot to safe level for downstream 14V-rated ICs
Peak Pulse Current	40A (8/20μs) - meets IEC 61000-4-5 Level 4 industrial surge immunity requirement
ESD Withstand	±30kV contact & air (IEC 61000-4-2) - exceeds standard system-level ESD robustness targets
Dynamic Resistance	20mΩ - ensures minimal voltage rise during high di/dt surges, reducing stress on protected circuitry
Junction Capacitance	145pF at 14V - low enough to avoid signal degradation on 12V power or low-speed data lines

Pinout & Package

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

Pin/Terminal	Circuit Role	Design Meaning
Pins 1, 2, 3	GND	Common ground return path for surge current; all three must be connected to maximize current handling and minimize inductance
Pins 4, 5, 6	IN	Input terminal for protected line (14V bus or I/O); parallel connection provides low-impedance surge path to GND

Key Features

Feature	Design Value
Constant clamping voltage	18.8–19.8V across 24A–40A and –55°C to +125°C - eliminates voltage derating concerns in wide-temp industrial environments
FET-based shunt architecture	Replaces PN-junction TVS with active switching - avoids thermal runaway and enables higher energy absorption per mm²
Low dynamic resistance	20mΩ - reduces clamping voltage rise under fast-rising transients (di/dt > 100A/μs)
Minimal junction capacitance	145pF - preserves signal integrity on 12V power rails and low-speed control lines without filtering penalties

Applications

12V Power Line Protection	Panels & Displays
Use Scenario: Protecting 12V auxiliary power inputs on industrial HMIs against lightning-induced surges and load dump transients. IC Role / Device Role / Timing Role: Transient diverting suppressor placed at connector entry point to shunt surge energy to ground before reaching PMIC or MCU. Use Value: Maintains 19.8V clamping at 40A while occupying only 2.56mm² board area-enabling compact front-panel designs compliant with IEC 61000-4-5 Level 4.	Use Scenario: Shielding LVDS or SPI interface lines on smart display modules from ESD events during field servicing. IC Role / Device Role / Timing Role: Solid-state EOS protector on display power and control lines, activated within nanoseconds of overvoltage detection. Use Value: ±30kV ESD immunity and 145pF capacitance prevent touch-induced latch-up or communication errors without degrading signal edge rates.
Industrial Equipment	IoT Devices
Use Scenario: Safeguarding 14V sensor supply rails in programmable logic controllers exposed to 2kV common-mode surges per IEC 61000-4-5. IC Role / Device Role / Timing Role: Single-line transient suppressor integrated directly at sensor connector to minimize PCB trace inductance. Use Value: Stable 19.8V clamping across –40°C to +85°C ambient ensures consistent protection performance in uncontrolled factory environments.	Use Scenario: Securing battery-charging input and USB-C VBUS lines in battery-powered edge sensors deployed outdoors. IC Role / Device Role / Timing Role: SurgeSwitch™ EOS protector on 14V-rated charging path, triggered by precise breakdown threshold to avoid false trips. Use Value: 792W peak pulse power rating and 86nA leakage at 14V enable multi-year operation without standby current penalty or thermal drift.

12V Power Line Protection

Panels & Displays

Use Scenario: Protecting 12V auxiliary power inputs on industrial HMIs against lightning-induced surges and load dump transients.

IC Role / Device Role / Timing Role: Transient diverting suppressor placed at connector entry point to shunt surge energy to ground before reaching PMIC or MCU.

Use Value: Maintains 19.8V clamping at 40A while occupying only 2.56mm² board area-enabling compact front-panel designs compliant with IEC 61000-4-5 Level 4.

Use Scenario: Shielding LVDS or SPI interface lines on smart display modules from ESD events during field servicing.

IC Role / Device Role / Timing Role: Solid-state EOS protector on display power and control lines, activated within nanoseconds of overvoltage detection.

Use Value: ±30kV ESD immunity and 145pF capacitance prevent touch-induced latch-up or communication errors without degrading signal edge rates.

Industrial Equipment

IoT Devices

Use Scenario: Safeguarding 14V sensor supply rails in programmable logic controllers exposed to 2kV common-mode surges per IEC 61000-4-5.

IC Role / Device Role / Timing Role: Single-line transient suppressor integrated directly at sensor connector to minimize PCB trace inductance.

Use Value: Stable 19.8V clamping across –40°C to +85°C ambient ensures consistent protection performance in uncontrolled factory environments.

Use Scenario: Securing battery-charging input and USB-C VBUS lines in battery-powered edge sensors deployed outdoors.

IC Role / Device Role / Timing Role: SurgeSwitch™ EOS protector on 14V-rated charging path, triggered by precise breakdown threshold to avoid false trips.

Use Value: 792W peak pulse power rating and 86nA leakage at 14V enable multi-year operation without standby current penalty or thermal drift.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
SMAJ14A	Standard unidirectional TVS diode; 22.0V clamping at 22.5A (8/20μs); 1.5Ω dynamic resistance; 100pF capacitance	Higher clamping voltage rise with current; limited to lower surge energy; no temperature-stable clamping	Lower cost for non-critical 12V lines where 22V clamping is acceptable and thermal margin exists
TDS1411P.T	Same die, tape-and-reel variant with different packaging (T instead of C); identical electrical specs and pinout	No functional difference; differs only in reel quantity (1,000 vs. 3,000) and marking	Select TDS1411P.T for smaller-batch prototyping or when matching existing BOMs specifying the .T suffix

Compared with SMAJ14A and TDS1411P.T, the TDS1411P.C offers superior clamping stability (±0.5V variation over 40A), lower dynamic resistance (20mΩ vs. 1.5Ω), and guaranteed performance across full industrial temperature range-making it optimal for high-reliability 14V bus protection where voltage margin is tight.

Availability

TDS1411P.C is available at Aetrix Electronics and suitable for 12V power line protection, panels & displays, industrial equipment, solid-state drives, remote meters, and IoT devices requiring stable component supply and long-term lifecycle support.

Supply support for TDS1411P.C 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 power management, protection, and signal integrity.

The TDS series is Semtech's SurgeSwitch™ transient diverting suppressor product line, engineered to replace traditional TVS diodes in high-energy EOS protection applications demanding stable clamping, low dynamic resistance, and extended temperature reliability.

FAQ

What is the maximum continuous operating voltage for TDS1411P.C?

The TDS1411P.C has a reverse stand-off voltage (V_RWM) of 14V, meaning it is rated for continuous DC operation up to 14V on the protected line. Exceeding this voltage risks premature triggering or degradation. This value is confirmed in the Absolute Maximum Ratings table and Electrical Characteristics section of the official Semtech datasheet Rev 2.1.

Does TDS1411P.C require a thermal pad on the PCB?

No, the TDS1411P.C does not require a thermal pad. Its DFN package dissipates surge energy through conduction rather than junction heating, and the datasheet explicitly states "no thermal pad is needed." Instead, low-inductance grounding via all three GND pins (1, 2, 3) and multiple vias to the ground plane is critical for achieving rated 40A surge performance.

How does TDS1411P.C differ from standard TVS diodes in clamping behavior?

Unlike standard TVS diodes whose clamping voltage rises linearly with peak current (V_C = V_BR + I_PP × R_DYN), the TDS1411P.C uses a surge-rated FET that lowers R_DS(on) as current increases, resulting in nearly constant clamping (18.8–19.8V) from 24A to 40A. This behavior is verified in Figure 3 of the Semtech datasheet and enables tighter voltage margin design.

What is the junction capacitance of TDS1411P.C and why does it matter?

The TDS1411P.C has a junction capacitance of 145pF at 14V and 1MHz. This low value minimizes signal distortion and loading on protected 12V power rails or low-speed digital lines (e.g., I²C, SPI), preserving rise/fall times and preventing false triggering in adjacent circuits-critical in dense industrial PCB layouts.

Can TDS1411P.C be used for bidirectional signal line protection?

No, the TDS1411P.C is a unidirectional device intended for positive-going transients on 14V power or single-ended I/O lines. Its functional diagram and pin configuration show dedicated IN and GND terminals with no symmetrical breakdown capability. For bidirectional data line protection, Semtech recommends complementary solutions such as the TDS2401P or discrete back-to-back configurations.

TDS1411P.C Specifications

Product attributes: Attribute value

Manufacturer:: Semtech Corporation

Package/Case:: 6-UFDFN

Series:: SurgeSwitch®

Packaging:: Tape & Reel (TR)

Product Status:: Active

Voltage - Clamping:: 14V

Technology:: Internal Switch

Number of Circuits:: 1

Applications:: -

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 6-DFN (1.6x1.6)

TDS1411P.C FAQ

1.How can I place an order for TDS1411P.C through Aetrix?

Please submit a Request for Quotation (RFQ) for TDS1411P.C 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 TDS1411P.C reliable?

The price and inventory of TDS1411P.C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TDS1411P.C is usually 5 days.

3.What payment methods are accepted for TDS1411P.C?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TDS1411P.C transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TDS1411P.C?

TDS1411P.C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TDS1411P.C 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 TDS1411P.C?

For technical support, including TDS1411P.C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TDS1411P.C requirements.

6.How does Aetrix verify that TDS1411P.C is sourced from the original manufacturer or authorized distributors?

All TDS1411P.C 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 TDS1411P.C meets industry standards.

7.What is the process for return or replacement of TDS1411P.C?

All TDS1411P.C units undergo pre-shipment inspection (PSI). If there is an issue with TDS1411P.C, 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 TDS1411P.C part is unused and in its original packaging.

Return procedure for TDS1411P.C:

1.Submit a request within 90 days.

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

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