Only One Name Means ProTek’Tion™
The SR series oers 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 eects of Electrostac Discharge (ESD) and
Electrical Fast Transients (EFT).
The SR series is ideal for low voltage circuit applicaons. 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 applicaons. 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.
• Compable with IEC 61000-4-2 (ESD): Air - 15kV, Contact - 8kV
• Compable with IEC 61000-4-4 (EFT): 40A - 5/50ns
• Compable with IEC 61000-4-5 (Surge): 24A, 8/20µs - Level 2(Line-
Gnd) & Level 3 (Line-Line)
• 300 Was Peak Pulse Power per Line (tp = 8/20µs)
• Provides Two Lines of Protecon
• 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 Plang (Annealed)
• Solder Reow Temperature:
Pure-Tin - Sn, 100: 260-270°C
• 8mm Tape and Reel Per EIA Standard 481
• Flammability Rang 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™
Operang Temperature TL-55 to 150 °C
Storage Temperature TSTG -55 to 150 °C
Peak Pulse Power (tp = 8/20µs) - See Figure 1 PPP 300 Was
Forward Surge Rang (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. Sux - T7 = 7” Reel - 3,000 pieces per 8mm tape.
4. Sux - 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 specicaons per document number 06011.R4 8/10.
Top Cover Tape
K0
D
P0
P2
10 Pitches Cumulave
Tolerance on Tape. ± 0.2
A0
B0
P
E
F
W
User Direcon 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 specically for
the protecon of electronic systems from the eects of lightning, Electrostac Discharge (ESD), Nuclear Electromagnec Pulse (NEMP), in-
ducve switching and EMI/RFI. With over 25 years of engineering and manufacturing experience, ProTek designs TVS devices that provide
applicaon specic protecon soluons 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 characteriscs described herein without noce.
DESIGN CHANGES: ProTek reserves the right to disconnue product lines without noce and that the nal judgement concerning selecon and specicaons is the buyer’s and that in furnishing engineering
and technical assistance. ProTek assumes no responsibility with respect to the selecon or specicaons of such products. ProTek makes no warranty, representaon or guarantee regarding the suitability of
its products for any parcular purpose, nor does ProTek assume any liability arising out of the applicaon or use of any product or circuit and specically disclaims any and all liability without limitaon special,
consequenal or incidental damages.
LIFE SUPPORT POLICY: ProTek Devices products are not authorized for use in life support systems without wrien 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
