SR2.8
&
SR3.3
1
05167.R4 3/05
www.protekdevices.com
STEERING DIODE / TVS ARRAY COMBO
Only One Name Means ProTek'TionTM
APPLICATIONS
Ethernet - 10/100/1000 Base T
FireWire & USB
Handheld Electronics
Video/Graphic Cards
WAN/LAN Equipment
IEC COMPATIBILITY (EN61000-4)
61000-4-2 (ESD): Air - 15kV, Contact - 8kV
61000-4-4 (EFT): 40A - 5/50ns
61000-4-5 (Surge): 24A, 8/20s - Level 2(Line-Gnd) & Level 3(Line-Line)
FEATURES
300 Watts Peak Power per Line (tp = 8/20s)
ESD Protection > 25 kilovolts
Low Operating Voltage: 2.8V & 3.3V
Provides Two (2) Lines of Protection
LOW LEAKAGE CURRENT < 1.0A
ULTRA LOW CAPACITANCE: 4.5pF Typical
RoHS Compliant in Lead-Free Versions
MECHANICAL CHARACTERISTICS
Molded JEDEC SOT-143
Weight 9 milligrams (Approximate)
Available in Tin-Lead or Lead-Free Pure-Tin Plating (Annealed)
Solder Reflow Temperature:
Tin-Lead - Sn/Pb, 85/15: 240-245C
Pure-Tin - Sn, 100: 260-270C
Flammability rating UL 94V-0
8mm Tape and Reel Per EIA Standard 481
Marking: Marking Code
05167
PIN CONFIGURATION
SOT-143
3
4
1
2
GND
I/O
REF
I/O
2
www.protekdevices.com
05167.R4 3/05
SR2.8
&
SR3.3
DEVICE CHARACTERISTICS
MAXIMUN RATINGS @ 25C Unless Otherwise Specified
Operating Temperature
SYMBOL
VALUE
-55
C to 150
C
C
C
-55
C to 150
C
UNITS
T
J
T
STG
PARAMETER
Storage Temperature
Peak Pulse Power (t
p
= 8/20s) - See Figure 1
P
PP
300
Watts
Forward Surge Rating (1/20 seconds @ 25C, I
F
= 10mA)
Volts
1.0
V
F
Peak Pulse Current (t
p
= 8/20s)
I
PP
30
Amps
0 5 10 15 20 25 30
t - Time - s
0
20
40
60
80
100
120
I
PP
- Peak Pulse Current - % of I
PP
TEST
WAVEFORM
PARAMETERS
t
f
= 8s
t
d
= 20s
t
f
Peak Value I
PP
e
-t
t
d
= t
I
PP
/2
FIGURE 2
PULSE WAVE FORM
0.01 1 10 100 1,000 10,000
t
d
- Pulse Duration - s
10
100
1,000
10,000
P
PP
- Peak Pulse Current - Watts
FIGURE 1
PEAK PULSE POWER VS PULSE TIME
300W, 8/20s Waveform
Note 1:
From Pin 4 to 1.
Note 2:
From Pin 1 to 3, 1 to 2, 3 to 4, 2 to 4.
ELECTRICAL CHARACTERISTICS PER LINE @ 25C Unless Otherwise Specified
PART
NUMBER
MINIMUM
BREAKDOWN
VOLTAGE
(See Note 1)
@ 2A
V
(BR)
VOLTS
MAXIMUM
CLAMPING
VOLTAGE
(See Fig. 2)
(See Note 1)
@ I
P
= 1A
V
C
VOLTS
MAXIMUM
CLAMPING
VOLTAGE
(See Fig. 2)
(See Note 1)
V
C
VOLTS
TYPICAL
CAPACITANCE
(See Note 2)
@0V, 1 MHz
C
J(SD)
pF
SR2.8
SR3.3
2.8
3.3
5.0
7.0
8.5V @ 5A
15V @ 10A
4.5
4.5
MAXIMUM
LEAKAGE
CURRENT
(See Note 1)
@V
WM
I
D
A
1.0
1.0
RATED
STAND-OFF
VOLTAGE
(See Note 1)
V
WM
VOLTS
2.8
3.3
DEVICE
MARKING
2A
3A
MINIMUM
SNAP-BACK
VOLTAGE
@ 50mA
V
(SB)
VOLTS
3.0
3.5
3
www.protekdevices.com
05167.R4 3/05
SR2.8
&
SR3.3
COPYRIGHT ProTek Devices 2005
SPECIFICATIONS: ProTek reserves the right to change the electrical and or mechanical
characteristics described herein without notice (except JEDEC).
DESIGN CHANGES: ProTek reserves the right to discontinue product lines without notice, and that
the final judgement concerning selection and specifications is the buyer's and that in furnishing
engineering and technical assistance, ProTek assumes no responsibility with respect to the
selection or specifications of such products.
PACKAGE OUTLINE & DIMENSIONS
ProTek Devices
2929 South Fair Lane, Tempe, AZ 85282
Tel: 602-431-8101 Fax: 602-431-2288
E-Mail:
sales@protekdevices.com
Web Site:
www.protekdevices.com
TAPE & REEL ORDERING NOMENCLATURE
1. Surface mount product is taped and reeled in accordance
with EIA-481.
2. Suffix-T7 = 7 Inch Reel - 3,000 pieces per 8mm tape,
i.e.,
SR2.8-T7.
3. Suffix-T13 = 13 Inch Reel - 10,00 pieces per 8mm tape,
i.e.,
SR2.8-T13.
4. Suffix - LF = Lead-Free, Pure-Tin Plating, i.e.,
SR2.8-LF-T7.
Outline & Dimensions: Rev 1 - 11/01, 06011
A
B
C
D
F
G
H
J
K
L
R
S
2.80
1.20
0.84
0.39
0.79
1.78
0.013
0.08
0.46
0.445
0.72
2.11
3.04
1.39
1.14
0.50
0.93
2.03
0.10
0.15
0.60
0.60
0.83
2.48
0.110
0.047
0.033
0.015
0.031
0.070
0.0005
0.003
0.018
0.0175
0.028
0.083
0.120
0.055
0.045
0.020
0.037
0.080
0.004
0.006
0.024
0.024
0.033
0.098
DIM
MIN
MAX
MIN
MAX
MILLIMETERS
INCHES
PACKAGE DIMENSIONS
NOTES
1. Dimensioning and tolerances per ANSI Y14.5M, 1985.
2. Controlling Dimension: Inches
3. Dimensions are exclusive of mold flash and metal burrs.
PACKAGE OUTLINE
SOT-143
MOUNTING PAD
A
G
B
L
F
R
H
D
K
C
S
J
0.112
0.079
0.071
0.075
0.041
0.108
0.047
0.031
0.033
0.033
0.033
1
2
3
4
5
6
7
8
9
10
11
2.85
2.00
1.80
1.90
1.05
2.75
1.20
0.80
0.85
0.85
0.85
DIM Millimeters
Inches
TYPICAL
1
2
4
3
5
6
7
9
8
10
11
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