Description
Semtech SurgeSwitch™ Transient Diverting Suppressors
(TDS) are designed to provide protection from Electrical
Overstress (EOS) events. They have superior clamping
and temperature characteristics when compared to
standard TVS devices. The device uses a surge rated
FET as the main protection element. A precisely tuned
trigger circuit activates the shunt FET when an EOS event
is detected. The TDS clamping voltage is nearly constant
across the rated peak pulse current range due to the
extremely low ON Resistance of the FET.
TDS1401P is designed to protect voltage bus or data
lines with an operating voltage as high as 14V. It is rated
for a high-energy transient current up to 22A(tp = 8/20μs)
and may be used to meet the common industrial voltage
surge standard of ±1kV (RS = 42Ω, CS= 0.5μF).
TDS1401P is in a small DFN 1.0mm x 0.6mm x 0.25mm
2-Lead package and represents significant board space
savings over traditional solutions.

Features
• High ESD Withstand Voltage: ±8kV (Contact) & ±20kV
(Air) per IEC 61000-4-2
• High peak pulse current capability:
22A (tp = 8/20μs) per IEC 61000-4-5
±1kV (tp = 1.2/50μs, RS = 42Ω) per IEC 61000-4-5
for unsymmetrical lines
• Low clamping voltage: 20.5V Maximum at IPP = 22A (tp
= 8/20μs)
• Protects one I/O or power line
• Working voltage:14V
• Solid-state technology

Mechanical Characteristics
• Package: DFN 1.0mm x 0.6mm x 0.25mm 2-Lead
• Pb-Free, Halogen Free, RoHS/WEEE Compliant
• Molding compound flammability rating: UL 94V-0
• Lead Finish: Lead-Free
• Marking: Marking code and Date Code
• Packaging: Tape and Reel

Applications
• 12V Power Line Protection
• Panels & Displays
• Industrial Equipment
• Solid-State Drives
• Remote Meters
• IoT Devices