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05151
Only One Name Means ProTek’Tion™
APPLICATIONS
✔ Ethernet - 10/100/1000 Base T
✔ RS-422 & RS-485
✔ Microcontrollers
✔ USB Interface
IEC COMPATIBILITY (EN61000-4)
✔ 61000-4-2 (ESD): Air - 15kV, Contact - 8kV
✔ 61000-4-4 (EFT): 40A - 5/50ns
✔ 61000-4-5 (Surge): 12A, 8/20µs - Level 1(Line-Gnd) & Level 2(Line-Line)
FEATURES
✔ ESD Protection > 40 kilovolts
✔ Provides Six (6) Lines of Protection
✔ ✔
✔
LOW LEAKAGE CURRENT < 2.0 µA
✔ ✔
✔ ✔
✔
LOW CAPACITANCE: 6pF Per Diode
✔ ✔
ET108
STEERING DIODE ARRAY
SO-8
MECHANICAL CHARACTERISTICS
✔ Molded JEDEC SO-8
✔ Weight 0.1 grams (Approximate)
✔ Flammability rating UL 94V-0
✔ 12mm Tape and Reel Per EIA Standard 481
✔ Marking: Part Number, Logo, Date Code & Pin One Defined By Dot on Top of Package
PIN CONFIGURATION
REF 1 REF 1 REF 2 REF 2
8
7
6
5
1
I/O I/O I/O I/O
2
3
105151.R3 8/03 www.protekdevices.com
4
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DEVICE CHARACTERISTICS
MAXIMUM RATINGS @ 25°C Unless Otherwise Specified
ET108
PARAMETER
Operating Temperature
Storage Temperature
Continuous Power Dissipation
SYMBOL VALUE
T
J
T
STG
P
PC
-55°C to 150°C
-55°C to 150°C°C
730 mW
ELECTRICAL CHARACTERISTICS PER LINE @ 25°C Unless Otherwise Specified
PA RT
NUMBER
DEVICE
MARKING
REPETITIVE
PEAK
REVERSE
MAXIMUM
FORWARD
VOLTAGE
VOLTAGE
8/20µs
@50mA
V
RRM
VOLTS
V
F
VOLTS
ET108 ET108 25 1.2 9
Note 1: Apply a 5V bias between pin 5 (REF 2) to pin 7 (REF 1). Measure Cj between any I/O pins to pin 7 (REF 1) and divide by 2.
MAXIMUM
PEAK PULSE
FORWARD
CURRENT
(See Fig. 2)
8/20µs
I
FM
AMPS
12
MAXIMUM
FORWARD
VOLTAGE
8/20µs
@12A
V
F
VOLTS
MAXIMUM
REVERSE
LEAKAGE
CURRENT
@ V
RRM
I
R
µA
2
UNITS
°C
TYPICAL
CAPACITANCE
(See Note 1)
Cj
pF
6
NON-REPETITIVE PEAK PULSE CURRENT CAPABILITY
FIGURE 1
8
6
4
2
Peak Pulse Current - Amps
0
0.001 0.01 0.1 1 10 100
Square Wave Pulse - ms
FIGURE 2
120
PP
100
80
60
40
- Peak Pulse Current - % of I
20
PP
I
0
0 5 10 15 20 25 30
2 www.protekdevices.com05151.R3 8/03
PULSE WAVE FORM
t
f
Peak Value I
-t
e
td = t
t - Time - µs
PP
IPP/2
TEST
WAVEFORM
PARAMETERS
tf = 8µs
td = 20µs
Page 3
PACKAGE OUTLINE & DIMENSIONS
ET108
G
-T-
0.010” (0.25 MM)
8 PL
PACKAGE OUTLINE
-A-
8
1
5
M
P
0.010” (0.25 MM)
4 PL
-B-
4
M
B
PACKAGE DIMENSIONS
MILLIMETERS
SO-8
INCHES
DIM MIN MAX MIN MAX
D
C
K
S
S
M
T
B
A
MOUNTING PAD
0.050” ± 0.005”
A
B
R X 45º
C
D
0º - 10º
F
G
J
F
J
K
P
R
NOTES
1. - T - = Seating Plane and Datum Surface.
0.030” ± 0.005”
2. Dimensions “A” and “B” are Datum.
3. Dimensions “A” and “B” do not include mold protrusion.
4. Maximum mold protrusion is 0.015” (0.380 mm) per side.
5. Dimensioning and tolerances per ANSI Y14.5M, 1982.
6. Dimensions are exclusive of mold flash and metal burrs.
4.80
3.80
1.35
0.35
0.40
1.27 BSC
0.18
0.10
5.80
0.25
5.00
4.00
1.75
0.49
1.250
1.27 BSC
0.25
0.25
6.20
0.50
0.189
0.150
0.054
0.014
0.016
0.05 BSC
0.007
0.004
0.229
0.010
0.196
0.157
0.068
0.019
0.049
0.05 BSC
0.009
0.008
0.244
0.019
0.160” ± 0.005”
0.045” ± 0.005”
COPYRIGHT © ProTek Devices 2003
SPECIFICATIONS: ProTek reserves the right to change the electrical and or mechanical
characteristics described herein without notice (except JEDEC).
DESIGN CHANGES: ProTek reser ves 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.
0.245” MIN
TAPE & REEL/BULK ORDERING NOMENCLATURE
1. Surface mount product is taped and reeled in accordance
with EIA-481.
2. Suffix-T7 = 7 Inch Reel - 1,000 pieces per 12mm tape,
i.e.,
ET108-T7.
3. Suffix-T13 = 13 Inch Reel - 2,500 pieces per 12mm tape,
i.e.,
ET108-T13.
4. No Suffix = Product Shipped in Tubes of 98 pcs per Tube.
Outline & Dimensions: Rev 1 - 11/01, 06009
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
3 www.protekdevices.com05151.R3 8/03
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