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Semtech Corporation TDS1401P.F
- Part No.:
- TDS1401P.F
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 0402 (1006 Metric)
- Datasheet:
-
TDS1401P.F.pdf
- Description:
- TVS
- Quantity:
- Payment:
- Shipping:
Inventory:6,674
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Product details
Overview
TDS1401P.F from Semtech is a transient diverting suppressor (SurgeSwitch™) designed for single-line 14V EOS protection in power and I/O paths, featuring ±8kV contact / ±20kV air ESD rating per IEC 61000-4-2, 22A peak pulse current (8/20μs), and 20.5V max clamping voltage at rated current - deployed in industrial equipment, IoT devices, and solid-state drives.
For engineers reviewing the TDS1401P.F datasheet, pinout, applications, or equivalent options, key selection criteria include working voltage (14V), dynamic resistance (8 mΩ), junction capacitance (80 pF), thermal stability (-40°C to +85°C), and DFN 1.0×0.6 mm package compatibility with high-density PCB layouts.
Technical Context
The TDS1401P.F uses a surge-rated FET as its primary protection element, activated by a precision trigger circuit that senses overvoltage events and rapidly shunts transient current to ground. Unlike conventional TVS diodes, its clamping voltage remains nearly constant across the full 22A pulse range due to the FET's collapsing RDS(on).
It operates with a reverse stand-off voltage of 14V, breakdown voltage of 17.7–19.7V, and exhibits low dynamic resistance (8 mΩ) and minimal leakage (≤100 nA at 14V), enabling stable performance across -40°C to +85°C ambient temperature while maintaining <20.5V clamping under IEC 61000-4-5 surge conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 14V - defines maximum continuous DC bus voltage it can protect without leakage or conduction. |
| Clamping Voltage | 20.5V max at 22A (8/20μs) - limits transient-induced overvoltage on protected line to safe levels for downstream ICs. |
| Peak Pulse Current | 22A (8/20μs) - supports robust industrial surge immunity per IEC 61000-4-5 with 2Ω source impedance. |
| ESD Rating | ±8kV contact / ±20kV air (IEC 61000-4-2) - exceeds Level 4 ESD immunity for front-panel and interface ports. |
| Junction Capacitance | 80 pF at 14V, 1 MHz - low enough for 12V power rail and moderate-speed data lines without signal integrity impact. |
| Dynamic Resistance | 8 mΩ - ensures minimal voltage rise during high-current transients, enabling flat clamping behavior. |
| Package Size | DFN 1.0 mm × 0.6 mm × 0.25 mm - enables ultra-compact placement on space-constrained PCBs like SSDs and IoT modules. |
Pinout & Package
Package: DFN 1.0 mm × 0.6 mm × 0.25 mm, 2-lead, Pb-free, RoHS/WEEE compliant, UL 94V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Input (Protected Line) | Connects to 14V bus or I/O line requiring EOS protection; carries full transient current when FET activates. |
| Pin 2 | GND | Low-inductance return path to system ground; critical for effective shunt operation and clamping stability. |
Key Features
| Feature | Design Value |
|---|---|
| FET-based shunt architecture | Enables near-constant clamping voltage across 1–22A pulse range, unlike voltage-dependent TVS diodes. |
| Ultra-low dynamic resistance | 8 mΩ minimizes IR drop during surge, preserving clamping accuracy and reducing thermal stress. |
| Low junction capacitance | 80 pF avoids signal distortion on 12V power rails and low-speed control lines (e.g., SMBus, GPIO). |
| Wide temperature stability | Clamping voltage and leakage remain within spec from -40°C to +85°C, supporting industrial environments. |
| Miniature DFN footprint | 1.0×0.6 mm saves >70% board area vs. SOD-323 TVS, ideal for SSDs and compact IoT sensor nodes. |
Applications
| 12V Power Line Protection | Industrial Equipment |
|---|---|
Use Scenario: Protecting 12V input rails in programmable logic controllers (PLCs) and motor drives exposed to load dump and inductive switching surges. IC Role / Device Role / Timing Role: Transient diverting suppressor placed directly at power entry point to clamp surges before reaching DC-DC converters and microcontrollers. Use Value: Limits transient overvoltage to ≤20.5V, preventing latch-up or damage to 15V-rated input stages while surviving repeated 22A pulses. | Use Scenario: Securing communication interfaces (RS-485, CAN power lines) and sensor supply rails in factory automation systems subject to EFT and surge coupling. IC Role / Device Role / Timing Role: Single-line EOS protector on 14V auxiliary rails powering fieldbus transceivers and analog front-ends. Use Value: Delivers ±20kV air-gap ESD immunity and 1kV IEC 61000-4-5 surge tolerance without degrading signal integrity via excessive capacitance. |
| Solid-State Drives | IoT Devices |
Use Scenario: Safeguarding 12V VCC rails of NAND flash controllers and DRAM buffers in enterprise SSDs where board space is constrained and reliability is mission-critical. IC Role / Device Role / Timing Role: Primary surge suppression device on main power input, mounted adjacent to connector to minimize loop inductance. Use Value: DFN 1.0×0.6 mm footprint enables placement within tight keep-out zones; 8 mΩ RDYN prevents thermal runaway during multi-pulse stress testing. | Use Scenario: Protecting battery-charging circuits and USB-C VBUS lines in battery-powered edge sensors and smart meters operating in harsh outdoor environments. IC Role / Device Role / Timing Role: Standalone 14V-rated suppressor on input power path, selected for low leakage (<100 nA) to extend battery life. Use Value: Maintains <100 nA reverse leakage at 14V and 85°C, minimizing standby current drain while delivering full 22A surge capability. |
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; higher clamping (30.5V @ 22A), higher dynamic resistance (~0.5Ω), 100x higher capacitance (≈8000 pF). | Not suitable for high-speed or space-constrained designs; better for cost-sensitive, non-miniaturized industrial boards. | Select SMAJ14A only if board layout allows larger SMC package and system tolerates higher clamping voltage and capacitance. |
| TDS1401P.S | Same die, identical electrical specs, but in 2-lead SOT-23 package (3.0×1.4 mm); 5× larger footprint, higher inductance. | Preferred where reworkability or legacy assembly processes favor SOT-23 over DFN. | Choose TDS1401P.S when DFN reflow yield or test probe access is a concern, accepting 5× area penalty and reduced surge response speed. |
Compared with SMAJ14A and TDS1401P.S, the TDS1401P.F delivers superior clamping flatness, 100× lower capacitance, and 95% smaller footprint - making it optimal for miniaturized, high-reliability 12–14V power rail protection where thermal stability and surge fidelity are critical.
Availability
TDS1401P.F is available at Aetrix Electronics and suitable for 12V power line protection, industrial equipment, and IoT devices requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for TDS1401P.F 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, and signal integrity.
The SurgeSwitch™ TDS family was developed to replace traditional TVS diodes in high-energy EOS applications, delivering flat-clamping, low-capacitance, and thermally stable protection for next-generation industrial, storage, and IoT platforms.
FAQ
What is the maximum clamping voltage of the TDS1401P.F under IEC 61000-4-5 surge conditions?
The TDS1401P.F has a maximum clamping voltage of 20.5V at 22A peak pulse current (8/20μs waveform), measured with 2Ω source impedance. This value is guaranteed across the full operating temperature range (-40°C to +85°C) and reflects the device's FET-based shunt architecture, which maintains stable clamping independent of current magnitude - a key advantage over conventional TVS diodes. The TDS1401P.F achieves this performance while sustaining repeated surge events without degradation.
How does the TDS1401P.F differ from standard TVS diodes in terms of clamping behavior?
Unlike standard TVS diodes whose clamping voltage rises linearly with peak current (VC = VBR + IPP × RDYN), the TDS1401P.F uses a surge-rated FET and precision trigger circuit to deliver nearly constant clamping voltage across its entire 1–22A pulse range. Its dynamic resistance is just 8 mΩ, resulting in minimal IR drop and stable ~20.5V clamping even at full rated current. This behavior is confirmed in the TDS1401P.F datasheet's typical characteristics curves and enables more predictable system-level surge margining.
Is the TDS1401P.F suitable for protecting 12V automotive power supplies?
The TDS1401P.F is rated for 14V working voltage and tested to IEC 61000-4-5 ±1kV (1.2/50μs voltage, 8/20μs current, RS = 42Ω), making it appropriate for 12V industrial and commercial power rails - but not for automotive-grade ISO 7637-2 or ISO 16750-2 compliance, which require higher surge levels (e.g., ±100V/30A load dump). For automotive use, Semtech offers dedicated AEC-Q200 qualified variants; the TDS1401P.F is intended for non-automotive 12V systems such as SSDs, PLCs, and IoT gateways.
What is the junction capacitance of the TDS1401P.F, and how does it affect circuit design?
The TDS1401P.F exhibits 80 pF junction capacitance at 14V reverse bias and 1 MHz, as specified in its electrical characteristics table. This low value ensures minimal loading on 12V power rails and compatibility with low-to-moderate-speed digital lines (e.g., I²C, SPI power domains), avoiding signal ringing or attenuation. Designers should verify layout parasitics remain below 5 pF additional capacitance to preserve the TDS1401P.F's specified 80 pF total - critical for noise-sensitive applications like sensor power conditioning.
Does the TDS1401P.F require external components for basic operation?
No, the TDS1401P.F is a fully integrated, two-terminal transient suppressor requiring no external resistors, capacitors, or bias networks. It operates autonomously: Pin 1 connects to the protected line, Pin 2 to system ground. Its internal trigger circuit and shunt FET activate automatically during overvoltage events. Layout best practices - including short, low-inductance ground traces and proper DFN pad design per Semtech's land pattern - are sufficient for optimal performance of the TDS1401P.F.
TDS1401P.F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- 0402 (1006 Metric)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 14V
- Voltage - Breakdown (Min):
- -
- Voltage - Clamping (Max) @ Ipp:
- 20.5V
- Current - Peak Pulse (10/1000µs):
- 22A (8/20µs)
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 2-DFN (1x0.6)
TDS1401P.F FAQ
1.How can I place an order for TDS1401P.F through Aetrix?
Please submit a Request for Quotation (RFQ) for TDS1401P.F 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 TDS1401P.F reliable?
The price and inventory of TDS1401P.F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TDS1401P.F is usually 5 days.
3.What payment methods are accepted for TDS1401P.F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TDS1401P.F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TDS1401P.F?
TDS1401P.F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TDS1401P.F 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 TDS1401P.F?
For technical support, including TDS1401P.F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TDS1401P.F requirements.
6.How does Aetrix verify that TDS1401P.F is sourced from the original manufacturer or authorized distributors?
All TDS1401P.F 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 TDS1401P.F meets industry standards.
7.What is the process for return or replacement of TDS1401P.F?
All TDS1401P.F units undergo pre-shipment inspection (PSI). If there is an issue with TDS1401P.F, 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 TDS1401P.F part is unused and in its original packaging.
Return procedure for TDS1401P.F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TDS1401P.F Tags
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