AR0502S1A
2-Line Ultra-Low Capacitance TVS Diode Array
Mechanical Characteristics
Description
The AR0502S1A is a 2-line ultra-low capacitance TVS
diode array, utilizing leading monolithic silicon technology
to provide fast response time and low ESD clamping volt-
age, making this device an ideal solution for protecting
voltage sensitive high-speed data lines. The AR0502S1A
has a very low capacitance with a typical value at 0.8pF,
and complies with the IEC 61000-4-2 (ESD) with ±25kV
air and ±20kV contact discharge. It is assembled into a 4-
pin SOT-143 lead-free package. The small size, very low
capacitance and high ESD surge protection make
AR0502S1A an ideal choice to protect cell phone, digital
video interfaces, high speed data ports, and many other
portable applications.
Package: SOT-143
Lead Finish: Matte Tin
Case Material: “Green” Molding Compound.
Terminal Connections: See Diagram Below
Marking Information: See Below
Applications
Cellular Handsets and Accessories
Notebooks and Handhelds
Personal Digital Assistants
Portable Instrumentation
Digital Cameras
Features
Peripherals
Ultra low capacitance: 0.8pF typical
Ultra low leakage: nA level
Audio Players, Keypads, Side Keys, LCD
USB 2.0
Operating voltage: 5V
Marking Information
Low clamping voltage
4-pin SOT-143 package
Protects two data lines and one power line
Complies with following standards:
– IEC 61000-4-2 (ESD) immunity test
Air discharge: ±25kV
3
4
S521= Device Marking Code
Pin1 is ground
Contact discharge: ±20kV
– IEC61000-4-5 (Lightning) 8A (8/20μs)
R0502
S521
2
1
RoHS Compliant
Dimensions and Pin Configuration
Ordering Information
Pin4
Part Number
Packaging
Reel Size
4
3
AR0502S1A 3000/Tape & Reel
7 inch
1
Pin2
Pin3
2
Pin1
Circuit Diagram
Pin Schematic
Revision_1.0
1 of 4
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