UltraGuard Series
ESD Protection for Low Leakage Requirements
GENERAL DESCRIPTION
Faster semiconductor clock speeds and an increasing
reliance on batteries as power sources have resulted in
the need for varistors that exhibit very low leakage
current. The UltraGuard (UG) Series of AVX Transient
Voltage Suppressors address this problem.
The UG Series is the ideal transient protection solution
for high clock speed integrated circuit application,
battery-operated device, backlit display,
medical/instrument application, low voltage power
conversion circuits and power supervisory chip sets. In
addition, UltraGuard’s low leakage characteristics are
also suitable for optic circuits like LDD, SerDes, and
laser diodes.
The UG Series is offered as discrete chips (0402, 0603,
and 0805), 2-element packages (0405 and 0508), and
4-element packages (0612).
HOW TO ORDER (Discrete Chips)
Discrete Chips
0402, 0603,
and 0805
2-Element Arrays
(0405 and 0508)
4-Element Arrays
(0612)
VC
VC=Surface
Mount Chip
UG
Series
04
Case Size
0150
Maximum
Working Voltage
0030 = 3.0V
DC
0050 = 5.0V
DC
0075 = 7.5V
DC
0100 = 10.0V
DC
0150 = 15.0V
DC
L
Capacitance
1
# of Elements
D
Packaging
[pieces per
reel]
D = 1,000
(7” reel)
R = 4,000
(7” reel)
T = 10,000
(13” reel)
P
Termination
Finish
P = Plated
X = Unplated
UG = Low
Leakage
Series
04 = 0402
06 = 0603
08 = 0805
L = Low
H = High
HOW TO ORDER (Array Packages)
MG
MG=Array
UG
Series
06
Case Size
0150
Maximum
Working Voltage
0030 = 3.0V
DC
0050 = 5.0V
DC
0075 = 7.5V
DC
0100 = 10.0V
DC
0150 = 15.0V
DC
L
Capacitance
4
# of Elements
D
Packaging
[pieces per
reel]
D = 1,000
(7” reel)
R = 4,000
(7” reel)
T = 10,000
(13” reel)
P
Termination
Finish
P = Plated
X = Unplated
UG = Low
Leakage
Series
04 = 0405
05 = 0508
06 = 0612
L = Low
H = High
2 = 2 Elements
4 = 4 Elements
UltraGuard Series
ESD Protection for Low Leakage Requirements
Capacitance
1
Capacitance
2
Circuit Voltage [V]
Case Size
AVX Part Number
Requirement
[pF]
0402
Low
40
VCUG040150L1 _ _
≤
15.0 V
0603
Low
VCUG060150L1 _ _
160
0805
Low
VCUG080150L1 _ _
110
0805
Standard
VCUG080150H1 _ _
190
0405 2-Element
Low
MGUG040150L2 _ _
40
0508 2-Element
Low
MGUG050150L2 _ _
75
0612 4-Element
Low
MGUG060150L4 _ _
75
0402
Low
90
VCUG040100L1 _ _
≤
10.0 V
0603
Low
VCUG060100L1 _ _
225
0805
Low
VCUG080100L1 _ _
275
0805
Standard
VCUG080100H1 _ _
500
0405 2-Element
Low
MGUG040100L2 _ _
40
0508 2-Element
Low
MGUG050100L2 _ _
225
0612 4-Element
Low
MGUG060100L4 _ _
225
0402
Low
120
VCUG040075L1 _ _
≤
7.5 V
0603
Low
VCUG060075L1 _ _
425
0805
Low
VCUG080075L1 _ _
280
0805
Standard
VCUG080075H1 _ _
820
0405 2-Element
Low
MGUG040075L2 _ _
40
0508 2-Element
Low
MGUG050075L2 _ _
425
0612 4-Element
Low
MGUG060075L4 _ _
425
0402
Low
230
VCUG040005L1 _ _
≤
5.0 V
0603
Low
VCUG060005L1 _ _
550
0805
Low
VCUG080005L1 _ _
585
0405 2-Element
Low
MGUG040005L2 _ _
40
0508 2-Element
Low
MGUG050005L2 _ _
425
0612 4-Element
Low
MGUG060005L4 _ _
425
0402
Low
360
VCUG040003L1 _ _
≤3
.0 V
0603
Low
VCUG060003L1 _ _
825
0805
Low
VCUG080003L1 _ _
860
0805
Standard
VCUG080003H1 _ _
2400
0405 2-Element
Low
MGUG040003L2 _ _
360
0508 2-Element
Low
MGUG050003L2 _ _
425
0612 4-Element
Low
MGUG060003L4 _ _
425
1
The last two digits represent the termination finish and packaging specifications (see previous page)
2
Capacitance is measured at 0.5V
RMS
@ 1MHz
3
Inductance at di/dt = 100mA/Ns
Inductance
3
[nH]
<1.0
<1.0
<1.5
1.5
<1.0
<1.0
<1.0
<1.0
<1.0
<1.5
1.5
<1.0
<1.0
<1.0
<1.0
<1.0
<1.5
1.5
<1.0
<1.0
<1.0
<1.0
<1.0
<1.5
<1.0
<1.0
<1.0
<1.0
<1.0
<1.5
1.5
<1.0
<1.0
<1.0
Note: Typical leakage current for each part is
Ÿ
2lA.
l
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