Microsemi USB50824, USB50812, USB50805, USB50803 Datasheet
8700 E. Thomas Road
Scottsdale, AZ 85252
Tel: (480) 941-6300
Fax: (480) 947-1503
USB50803
thru
USB50824
TVSarray Series
DESCRIPTION (500 watt)
This TRANSIENT VOLTAGE SUPPRESSOR (TVS) array is packaged
in an SO-8 configuration giving protection to 2 Unidirectional data or
interface lines. It is designed for use in applications where protection
is required at the board level from voltage transients caused by
electrostatic discharge (ESD) as defined in IEC 1000-4-2, electrical
fast transients (EFT) per IEC 1000-4-4 and effects of secondary
lighting.
These TVS arrays have a peak power rating of 500 watts for an
8/20µsec pulse. This array is suitable for protection of sensitive circuitry consisting of TTL, CMOS
DRAM’s, SRAM’s, HCMOS, HSIC microprocessors, UNIVERSAL SERIAL BUS (USB) and I/O transceivers.
The USB508XX product provides board level protection from static electricity and other induced voltage
surges that can damage or upset sensitive circuitry.
FEATURES MECHANICAL
• Protects up to 2 unidirectional lines • Molded SO-8 Surface Mount
• Surge protection Per IEC 1000-4-2, IEC 1000-4-4 • Weight: 0.066 grams (approximate)
• Provides electrically isolated protection • Marking: Logo, device number, date code
• SO-8 Packaging • Pin #1 defined by DOT on top of package
• ULTRA LOW CAPACITANCE 3 pF
• ULTRA LOW LEAKAGE
MAXIMUM RATINGS PACKAGING
• Operating Temperatures: -550C to +1500C • Tape & Reel EIA Standard 481-1-A
• Storage Temperature: -550C to +1500C • 13 inch reel 2,500, pieces (OPTIONAL)
• Peak Pulse Power: 500 Watts (8/20 µsec, Figure 1) • Carrier tubes 95 pcs per (STANDARD)
• Pulse Repetition Rate: <.01%
ELECTRICAL CHARACTERISTICS PER LINE @ 250C Unless otherwise specified
STAND
OFF
PART
NUMBER
USB50803 AF 3.3 4 8 11 200 3 -5
USB50805 AG 5.0 6.0 10.8 13 20 3 1
USB50812 AH 12.0 13.3 19 26 1 3 8
USB50815 AJ 15.0 16.7 25 32 1 3 11
USB50824 AK 24.0 26.7 44 57 1 3 28
DEVICE
MARKING
VOLTAGE
V
WM
VOLTS
MAX MIN MAX MAX MAX TYP MAX
NOTE: TVS product is normally selected based on its stand off Voltage VWM. Product selected voltage should be
equal to or greater than the continuous peak operating voltage of the circuit to be protected.
Application: The USB508XX product is designed for transient voltage suppression protection of ESD sensitive
components at the board level. It is an ideal product to be used for protection of I/O Transceivers.
BREAKDOWN
VOLTAGE
V
BR
@1 mA
VOLTS
CLAMPING
VOLTAGE
V
C
@ 1 Amp
(FIGURE 2)
VOLTS
CLAMPING
VOLTAGE
V
C
@ 5 Amp
(FIGURE 2)
VOLTS
LEAKAGE
CURRENT
I
D
@ V
WM
µA
CAPACITANCE
(f=1 MHz)
@0V
C
pF
TEMPERATURE
COEFFICIENT
OF V
á
VBR
mV/°C
BR
MSC1536.PDF ISO 9001 CERTIFIED REV C 7/07/2000
USB50803 thru USB50824
INCHES
MILLIMETERS
MAX
MIN
DIM
MAX
MIN
0.197 A0.188
4.77
5.00
0.158
0.150
3.81
4.01
0.069
0.053
1.35
1.75
0.021
0.011
0.28
0.53
0.050
0.016
0.41
1.27
0.050 BSC
1.27 BSC
0.010
0.006
0.15
0.25
0.008
0.004
0.10
0.20
0.206
0.189
4.80
5.23 B C D F
G J K
L
0.244P0.228
5.79
6.19
WAVE FORMS
100
Peak Value -- Ipp
8 X 20 Waveform
50
Ipp
Half-Value --
0
0
Ipp -- Peak Pulse Current -- % Ipp
t
10
t
2
20 30
d
t -- Time in microsec
FIGURE 1 FIGURE 2
Peak Pulse Power Vs Pulse Time Pulse Wave Form
MOUNTING PAD SO-8 CIRCUIT DIAGRAM
0.045±.005
0.245
MIN
.030±.005
.160±.005
.050 TYP
SIGNAL SIDE
SO-8 PACKAGE
GROUND SIDE
MSC1536.PDF ISO 9001 CERTIFIED REV C 7/07/2000
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