Microsemi USB50424, USB50415, USB50412, USB50405, USB50403 Datasheet
8700 E. Thomas Road
Scottsdale, AZ 85251
Tel: (480) 941-6300
Fax: (480) 947-1503
USB50403
thru
USB50424
DESCRIPTION (500 watt)
TVSarray ™ Series
This 4 pin 1 line unidirectional ULTRA LOW CAPACITANCE array is
designed for use in applications requiring board level protection from
voltage transients caused by electrostatic discharge (ESD) as defined
by IEC 1000-4-2, electrical fast transients (EFT) per IEC 1000-4-4 and
effects of secondary lightning.
These arrays are used to protect 1 discrete line utilizing pins (1,4 signal
and 2,3 ground). The S0T-143 product provides board level protection
from static electricity and other induced voltage surges that can
damage sensitive circuitry.
These TRANSIENT VOLTAGE SUPPRESSOR (TVS) Diode Arrays protect 3.3 Volt components such as
DRAM’s, SRAM’s, CMOS, HCMOS, HSIC, and low voltage interfaces up to 24Volts.
FEATURES MECHANICAL
• Protects 3.3 up through 24V Components • Molded SOT-143 Surface Mount
• Protects 1 line bidirectional • Weight: .035 grams (approximate)
• Provides electrically isolated protection • Body Marked with device marking
• SOT-143 Packaging code
• ULTRA LOW CAPACITANCE 3 pF • Pin #1 defined by DOT on top of
package
MAXIMUM RATINGS PACKAGING
• Operating Temperatures: -550C to +1500C • Tape & Reel EIA Standard 481-1-A
• Storage Temperature: -550C to +1500C • 7 inch reel 3,000 pieces
• Peak Pulse Power: 500 Watts (8/20 µsec, Figure 1)
• Pulse Repetition Rate: <.01%
ELECTRICAL CHARACTERISTICS @ 250C Unless otherwise specified
STAND
OFF
PART
NUMBER
USB50403 AA 3.3 4 8 11 200 3 -5
USB50405 AB 5.0 6.0 10.8 13 20 3 1
USB50412 AC 12.0 13.3 19 26 1 3 8
USB50415 AD 15.0 16.7 25 32 1 3 11
USB50424 AE 24.0 26.7 44 57 1 3 28
DEVICE
MARKING
VOLTAGE
V
WM
VOLTS
MAX MIN MAX MAX MAX MAX MAX
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
STAND OFF
CURRENT
I
D
@ V
WM
µA
CAPACITANCE
(f=1 MHz)
@0V
C
pF
TEMPERATURE
COEFFICIENT
OF V
BR
á
VBR
mV/°C
NOTE: Transient Voltage Suppression (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.
MSC1372.PDF ISO 9001 CERTIFIED REV D 9/19/2000
USB50403 thru USB50424
Watts
– Peak Pulse Power -
PP
P
•
WAVE FORMS
8/20 µs 500 W
td – Pulse Duration - µs
FIGURE 1 FIGURE 2
Peak Pulse Power Vs Pulse Time Pulse Wave Form
100
Peak Value -- Ipp
8 X 20 Waveform
50
Ipp
Half-Value --
0
0
Ipp -- Peak Pulse Current -- % Ipp
t
2
20 30
10
t
d
t -- Time in microsec
MOUNTING PAD SOT 143 CIRCUIT DIAGRAM
DIMENSIONS
INCHES MM
MIN MAX MIN MAX
A .032 .040 0.80 1.00
A1 .040 .048 1.00 1.20
B --- .057 --- 1.44
C --- .087 --- 2.20
D .075 BSC 1.90 BSC
E .067 BSC 1.70 BSC
G .032 .040 0.80 1.00
H .134 .140 3.40 3.60
DIMENSION
A 0.070 0.080 1.78 2.03
B 0.047 0.055 1.20 1.40
C 0.030 0.037 0.77 0.94
C1 0.015 0.020 0.37 0.50
D 0.110 0.119 2.80 3.04
E 0.035 0.044 0.89 1.17
F 0.071 0.079 1.80 2.00
G 0.0006 0.006 0.013 0.05
H 0.003 0.007 0.085 0.17
I 0.018 0.023 0.45 0.60
J 0.083 0.093 2.10 2.50
SIGNAL SIDE
GROUND SIDE
INCHES MILLIMETERS
MIN MAX MIN MAX
MSC1372.PDF ISO 9001 CERTIFIED REV D 9/19/2000
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