05141
Only One Name Means ProTek’Tion™
USB208
UltRa low caPacitance SteeRing diode aRRay
deScRiPtion
The USB208 is an ultra low capacitance steering diode array. This device provides circuit protection for computer
interfaces, wireless bus applications and portable electronics. The USB208 is ideally suited to protect USB data I/O
ports against the effects of ESD and EFT.
The USB208 meets the requirements of IEC 61000-4-2 (ESD) and IEC 61000-4-4 (EFT). At higher operating frequencies
or faster edge rates, insertion loss and signal integrity are a major concern. The USB208 offers a ultra low capacitance
and low leakage current in a SOT-23-6 package.
Sot-23-6 Package
FeatUReS
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Compatible with IEC 61000-4-2 (ESD): Air - 15kV, Contact - 8kV
Compatible with IEC 61000-4-4 (EFT): 40A - 5/50ns
ESD Protection > 25 kilovolts
500 Milliwatt Continuous Power Dissipation
Provides 4 Lines of Protection
Low Leakage Current < 1.0µA
Ultra Low Capacitance: 5pF per Diode
RoHS Compliant
REACH Compliant
aPPlicationS
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USB Interface Ports
SMART Phones
Portable Electronics
Video Interface Ports
Sensor Ports
Mechanical chaRacteRiSticS
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Molded JEDEC SOT-23-6 Package
Approximate Weight: 16 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
• Flammability Rating UL 94V-0
Pin conFigURation
I/O 1 1
REF 1 2
I/O 2 3
6 I/O 4
5 REF 2
4 I/O 3
05141.R11 2/11
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05141
Only One Name Means ProTek’Tion™
USB208
tyPical device chaRacteRiSticS
MaXiMUM RatingS
@ 25°c Unless otherwise Specified
PaRaMeteR
Operating Temperature
Storage Temperature
Continuous Power Dissipation
Repetitive Peak Forward Current @ tp = 5µs, F = 50kHz (Pin 2-3)
SyMBol
T
A
T
STG
P
PC
I
FRM
valUe
-55 to 150
-55 to 150
500
700
UnitS
°C
°C
mW
mA
electRical chaRacteRiSticS PeR line
@ 25°c Unless otherwise Specified
PaRt
nUMBeR
device
MaRking
RePetitive
Peak
ReveRSe
voltage
@ 10µa
v
RRM
voltS
USB208
noteS
PSB
20
MaXiMUM
ReveRSe
leakage
cURRent
PeR diode
@ v
RRM
@ 5v
i
R
µa
1
tyPical
FoRwaRd
voltage
@ 50ma
v
F
voltS
1.2
MaXiMUM
caPacitance
(note 1)
c
j
pF
5
1. Apply a 5V bias between pin 2 (REF 1) to pin 5 (REF 2). Measure Cj between I/O pins to pin 5 (REF 2) and divide by two.
05141.R11 2/11
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05141
Only One Name Means ProTek’Tion™
USB208
tyPical device chaRacteRiSticS
FigURe 1
Peak FoRwaRd cURRent vS FoRwaRd voltage
10
i
F
- Forward current - a
8
6
4
2
0
0
1
2
3
4
5
6
7
8
9
10
v
F
- Forward voltage - v
110
i
F
- Forward current - ma
FigURe 2
low FoRwaRd cURRent vS FoRwaRd voltage
90
70
50
30
10
800
840
880
920
960
1000
v
F
- Forward voltage - v
05141.R11 2/11
Page 3
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05141
Only One Name Means ProTek’Tion™
USB208
Sot-23-6 Package inFoRMation
oUtline diMenSionS
diM
A
B
C
D
E
G
J
K
L
M
noteS
D
E
MilliMeteRS
Min
2.80
1.50
0.90
0.30
0.85
0.90
0.09
2.60
0.0
0.30
incheS
Min
0.110
0.059
0.036
0.012
0.033
0.036
0.003
0.102
0.0
0.012
MaX
3.05
1.75
1.30
0.40
1.05
1.45
0.20
3.00
0.15
0.60
MaX
0.120
0.070
0.051
0.016
0.040
0.057
0.008
0.118
0.006
0.024
G
A
1
2
3
L
B
M
J
6
5
4
K
0° - 8°
1. Controlling dimension: inches.
2. Dimensioning and tolerances per ANSI Y14.5M, 1985.
3. Dimensions are exclusive of mold flash and metal burrs.
C
Pad layoUt diMenSionS
diM
A
B
C
D
E
noteS
B
C
E
D
MilliMeteRS
noMinal
0.70
1.90
0.95
2.40
1.00
incheS
noMinal
0.028
0.074
0.037
0.094
0.039
A
1. Controlling dimension: inches.
05141.R11 2/11
Page 5
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Embedded System
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