Only One Name Means ProTek’Tion™

 




The SR series oers two low voltage (2.8V & 3.3V) and low capacitance steering diode TVS arrays. This series is
designed to protect two line pair or four data/transmission lines from the eects of Electrostac Discharge (ESD) and
Electrical Fast Transients (EFT).
The SR series is ideal for low voltage circuit applicaons. 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 applicaons. The
small SOT-143 package, with four leads reduces the internal lead inductance for low overshoot voltage during fast
front me transient events, such as ESD. This device meets the IEC 61000-4-2 and IEC 61000-4-4 requirements.
Compable with IEC 61000-4-2 (ESD): Air - 15kV, Contact - 8kV
Compable with IEC 61000-4-4 (EFT): 40A - 5/50ns
Compable with IEC 61000-4-5 (Surge): 24A, 8/20µs - Level 2(Line-
Gnd) & Level 3 (Line-Line)
300 Was Peak Pulse Power per Line (tp = 8/20µs)
Provides Two Lines of Protecon
Low Leakage Current < 1.0µA
Ultra Low Capacitance: 4.5pF Typical
RoHS Compliant
REACH Compliant

Molded JEDEC SOT-143 Package
Approximate Weight: 9 milligrams
Lead-Free Pure-Tin Plang (Annealed)
Solder Reow Temperature:
Pure-Tin - Sn, 100: 260-270°C
8mm Tape and Reel Per EIA Standard 481
Flammability Rang UL 94V-0

Ethernet - 10/100/1000 Base T
USB
Handheld Electronics
Video Cards
WAN/LAN Equipment


3
4
1
2
GND REF
I/O I/O
Only One Name Means ProTek’Tion™

 




   
Operang Temperature TL-55 to 150 °C
Storage Temperature TSTG -55 to 150 °C
Peak Pulse Power (tp = 8/20µs) - See Figure 1 PPP 300 Was
Forward Surge Rang (1/20s @ 25°C, IF = 10mA) VF1 Volts
Peak Pulse Current (tp = 8/20µs) IPP 30 Amps


















































SR2.8 2A 2.8 2.8 3.0 5.0 8.5V @ 5A 1 4.5
SR3.3 3A 3.3 3.3 3.5 7.0 15V @ 10A 1 4.5

1. From pin 4 to 1.
2. From pin 1 to 3, 1 to 2, 3 to 4, 2 to 4.
Only One Name Means ProTek’Tion™

 






300W, 8/20µs Waveform






Peak Pulse Power
8/20µs
Average Power










TEST
WAVEFORM
PARAMETERS
tf = 8µs
td = 20µs
tf
e-t
Peak Value IPP
td = t/(IPP/2)











Only One Name Means ProTek’Tion™

 




  
   
A 2.80 3.04 0.110 0.120
B 1.20 1.39 0.047 0.055
C 0.84 1.14 0.033 0.045
D 0.39 0.50 0.015 0.020
F 0.79 0.93 0.031 0.037
G 1.78 2.03 0.070 0.080
J 0.08 0.15 0.003 0.006
K 0.46 0.60 0.018 0.024
L 0.445 0.60 0.0175 0.024
L1 0.40 0.60 0.016 0.024
R 0.72 0.83 0.028 0.033
S 2.11 2.48 0.083 0.098

1. Dimensioning and tolerances per ANSI Y14.M, 1985.
2. Controlling dimension: inches.
3. Dimensions are exclusive of mold ash and metal burrs.

  
   
A 1.88 2.13 0.074 0.084
B 1.80 2.06 0.071 0.081
C 0.71 0.97 0.028 0.038
D 0.76 1.02 0.030 0.040
E 1.07 1.32 0.042 0.052
F 0.71 0.97 0.028 0.038

1. Controlling dimension: inches.
A
GL
BS
F D
K
J
C
R
H
L1
A
B
C
D
E F
Only One Name Means ProTek’Tion™

 




 
      
178mm (7”) 8mm 3.10 ± 0.10 2.70 ± 0.10 1.35 ± 0.10 1.50 ± 0.10 1.75 ± 0.10 3.50 ± 0.05 8.00 ± 0.30 4.00 ± 0.10 2.00 ± 0.05 4.00 ± 0.10 0.25

1. Dimensions are in millimeters.
2. Surface mount product is taped and reeled in accordance with EIA-481.
3. Sux - T7 = 7” Reel - 3,000 pieces per 8mm tape.
4. Sux - T13 = 13” Reel - 10,000 pieces per 8mm tape.
5. Marking on Part - marking code (see page 2) and date code.
Package outline, pad layout and tape specicaons per document number 06011.R4 8/10.
Top Cover Tape
K0
D
P0
P2
10 Pitches Cumulave
Tolerance on Tape. ± 0.2
A0
B0
P
E
F
W
User Direcon of Feed
Pin 1
t

     
SR2.8/SR3.3 -LF -T7 3000 7” n/a
SR2.8/SR3.3 -LF -T13 10,000 13” n/a
Only One Name Means ProTek’Tion™

 




ProTek Devices, based in Tempe, Arizona USA, is a manufacturer of Transient Voltage Suppression (TVS) products designed specically for
the protecon of electronic systems from the eects of lightning, Electrostac Discharge (ESD), Nuclear Electromagnec Pulse (NEMP), in-
ducve switching and EMI/RFI. With over 25 years of engineering and manufacturing experience, ProTek designs TVS devices that provide
applicaon specic protecon soluons for all electronic equipment/systems.
ProTek Devices Analog Products Division, also manufactures analog interface, control, RF and power management products.
COPYRIGHT © ProTek Devices 2002 - This literature is subject to all applicable copyright laws and is not for resale in any manner.
SPECIFICATIONS: ProTek reserves the right to change the electrical and or mechanical characteriscs described herein without noce.
DESIGN CHANGES: ProTek reserves the right to disconnue product lines without noce and that the nal judgement concerning selecon and specicaons is the buyer’s and that in furnishing engineering
and technical assistance. ProTek assumes no responsibility with respect to the selecon or specicaons of such products. ProTek makes no warranty, representaon or guarantee regarding the suitability of
its products for any parcular purpose, nor does ProTek assume any liability arising out of the applicaon or use of any product or circuit and specically disclaims any and all liability without limitaon special,
consequenal or incidental damages.
LIFE SUPPORT POLICY: ProTek Devices products are not authorized for use in life support systems without wrien consent from the factory.


2929 South Fair Lane
Tempe, Arizona 85282
USA

General: 602-431-8101
Sales: 602-414-5109
Customer Service: 602-414-5114

General: 602-431-2288

Sales: sales@protekdevices.com
Customer Service: service@protekdevices.com
Technical Support: support@protekdevices.com

www.protekdevices.com
www.protekanalog.com