Only One Name Means ProTek’Tion
www.protekdevices.com
05167.R8 8/10
Page 1
05167
SR2.8 - SR3.3
ultRa low caPacitance SteeRing diode/tVS aRRay
deScRiPtion
The SR Series offers two low voltage (2.8V & 3.3V) and low capacitance steering diode TVS arrays. These devices are
designed to protect two line pair or four data/transmission lines from the effects of Electrostatic Discharge (ESD) and
Electrical Fast Transients (EFT).
The SR Series is ideal for low voltage circuit applications. The leakage current for the SR2.8 is less than 1.0 microam-
pere. The low capacitance of the steering diode allows the designer to protect high speed data applications. The
small SOT-143 package, with four leads reduces the internal lead inductance for low overshoot voltage during fast
front time transient events, such as ESD. Both devices meet the IEC 61000-4-2 and IEC 61000-4-4 requirements.
FeatuReS
IEC Compatibility IEC 61000-4-2 (ESD): Air - 15kV, Contact - 8kV
IEC Compatibility IEC 61000-4-4 (EFT): 40A - 5/50ns
IEC Compatibility IEC 61000-4-5 (Surge): 24A, 8/20s - Level 2(Line-
Gnd) & Level 3 (Line-Line)
300 Watts Peak Pulse Power per Line (tp = 8/20s)
Provides Two Lines of Protection
Low Leakage Current < 1.0A
Ultra Low Capacitance: 4.5pF Typical
RoHS Compliant
REACH Compliant
Mechanical chaRacteRiSticS
Molded JEDEC SOT-143 Package
Approximate Weight: 9 milligrams
Lead-Free Pure-Tin Plating (Annealed)
Solder Reflow Temperature:
Pure-Tin - Sn, 100: 260-270°C
8mm Tape and Reel Per EIA Standard 481
aPPlicationS
Ethernet - 10/100/1000 Base T
USB
Handheld Electronics
Video Cards
WAN/LAN Equipment
Sot-143 Package
Pin conFiguRation
3
4
1
2
GND
REF
I/O