1 Features
1• Protection Against 1-kV, 42-Ω IEC 61000-4-5
Surge Test for Industrial Signal Lines
• Bidirectional Polarity Enables Protection Against
Bipolar Signaling or Miswiring Conditions
• Clamping Voltage of 29.6 V at 30 A of 8/20-μs
Surge Current
• Standoff Voltage: ±22 V
• Small 3 mm x 3 mm2 SON Footprint
• Survives Over 5,000 Repetitive Strikes of 30-A,
8/20-μs Surge Current at 125°C
• Robust Surge Protection
– IEC61000-4-5 (8/20 μs): 30 A
– IEC61643-321 (10/1000 μs): 4 A
• Low Leakage Current
– 2-nA Typical at 27°C
– 330-nA Maximum at 85°C
• Low Capacitance: 62 pF
• Integrated Level 4 IEC 61000-4-2 ESD Protection

2 Applications
• Industrial Sensor I/O
• PLC I/O Modules
• Analog Inputs
• Appliances
• Medical Equipment
• USB Type-C VBUS Protection

3 Description
The TVS2201 device shunts up to 30 A of IEC
61000-4-5 fault current to protect systems from highpower
transients or lightning strikes. The device
survives the common industrial signal line EMC
requirement of 1-kV IEC 61000-4-5 open circuit
voltage coupled through a 42-Ω impedance. The
TVS2201 uses a feedback mechanism to ensure
precise flat clamping during a fault, keeping system
exposure lower than traditional TVS diodes. The tight
voltage regulation allows designers to confidently
select system components with a lower voltage
tolerance, lowering system costs and complexity
without sacrificing robustness. The TVS2201 has a
±22-V operating range to enable operation in systems
that require protection against reverse wiring
conditions.
In addition, the TVS2201 is available in a small SON
footprint designed for space constrained applications,
offering a significant size reduction compared to
standard SMA and SMB packages. Low device
leakage and capacitance ensure a minimal effect on
the protected line. To ensure robust protection over
the lifetime of the product, TI tests the TVS2201
against 5000 repetitive surge strikes at 125°C with no
shift in device performance.
The TVS2201 is part of TI's Flat-Clamp family of
surge devices. For a deeper look at the Flat-Clamp
family, refer to the Flat-Clamp Surge Protection
Technology for Efficient System Protection white
paper.