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 applica-
tion, low voltage power conversion circuits and power supervisory chip sets. In addi-
tion, 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 pack-
ages (0405 and 0508), and 4-element packages (0612).
Discrete Chips
0402, 0603,
and 0805
2-Element Arrays
(0405 and 0508)
4-Element Arrays
(0612)
HOW TO ORDER
VC
VC=Surface
Mount Chip
UG
Series
UG = Low
Leakage
Series
04
Case Size
04 = 0402
06 = 0603
08 = 0805
0180
Maximum
Working
Voltage
0030 = 3.0V
DC
0050 = 5.0V
DC
0075 = 7.5V
DC
0100 = 10.0V
DC
0150 = 15.0V
DC
0180 = 18.0V
DC
L
Capacitance
L = Low
H = High
1
No. of
Elements
W
Packaging
(pieces per
reel)
D = 1,000
(7" reel)
R = 4,000
(7" reel)
T = 10,000
(13" reel)
W = 10,000
(7" reel,
0402 only)
P
Termination
Finish
P = Ni/Sn Alloy
(Plated)
HOW TO ORDER
MG
MG=Array
UG
Series
UG = Low
Leakage
Series
06
Case Size
04 = 0405
05 = 0508
06 = 0612
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
L = Low
H = High
4
No. of
Elements
2 = 2 Elements
4 = 4 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 = Ni/Sn Alloy
(Plated)
44
UltraGuard Series
ESD Protection for Low Leakage Requirements
AVX Part Number
MGUG040030L2 _ _
MGUG050030L2 _ _
MGUG060030L4 _ _
VCUG040030L1 _ _
VCUG060030L1 _ _
VCUG080030H1 _ _
VCUG080030L1 _ _
VCUG120030H1 _ _
VCUG120030L1 _ _
MGUG040050L2 _ _
MGUG050050L2 _ _
MGUG060050L4 _ _
VCUG040050L1 _ _
VCUG060050L1 _ _
VCUG080050L1 _ _
VCUG120050H1 _ _
VCUG120050L1 _ _
MGUG040075L2 _ _
MGUG050075L2 _ _
MGUG060075L4 _ _
VCUG040075L1 _ _
VCUG060075L1 _ _
VCUG080075H1 _ _
VCUG080075L1 _ _
VCUG120075H1 _ _
VCUG120075L1 _ _
MGUG040100L2 _ _
MGUG050100L2 _ _
MGUG060100L4 _ _
VCUG040100L1 _ _
VCUG060100L1 _ _
VCUG080100H1 _ _
VCUG080100L1 _ _
VCUG120100H1 _ _
VCUG120100L1 _ _
MGUG040150L2 _ _
MGUG050150L2 _ _
MGUG060150L4 _ _
VCUG040150L1 _ _
VCUG060150L1 _ _
VCUG080150H1 _ _
VCUG080150L1 _ _
VCUG120150H1 _ _
VCUG040180L1 _ _
V
CIR
(DC)
≤3.0
≤3.0
≤3.0
≤3.0
≤3.0
≤3.0
≤3.0
≤3.0
≤3.0
≤5.0
≤5.0
≤5.0
≤5.0
≤5.0
≤5.0
≤5.0
≤5.0
≤7.5
≤7.5
≤7.5
≤7.5
≤7.5
≤7.5
≤7.5
≤7.5
≤7.5
≤10.0
≤10.0
≤10.0
≤10.0
≤10.0
≤10.0
≤10.0
≤10.0
≤10.0
≤15.0
≤15.0
≤15.0
≤15.0
≤15.0
≤15.0
≤15.0
≤15.0
≤18.0
Termination Finish Code
Packaging Code
V
CIR
(AC)
≤2.3
≤2.3
≤2.3
≤2.3
≤2.3
≤2.3
≤2.3
≤2.3
≤2.3
≤3.5
≤3.5
≤3.5
≤3.5
≤3.5
≤3.5
≤3.5
≤3.5
≤5.3
≤5.3
≤5.3
≤5.3
≤5.3
≤5.3
≤5.3
≤5.3
≤5.3
≤7.1
≤7.1
≤7.1
≤7.1
≤7.1
≤7.1
≤7.1
≤7.1
≤7.1
≤11
≤11
≤11
≤11
≤11
≤11
≤11
≤11
≤14
Cap Required
Low
Low
Low
Low
Low
High
Low
High
Low
Low
Low
Low
Low
Low
Low
High
Low
Low
Low
Low
Low
Low
High
Low
High
Low
Low
Low
Low
Low
Low
High
Low
High
Low
Low
Low
Low
Low
Low
High
Low
High
Low
Cap
300
425
425
175
750
3000
1100
3000
1200
40
425
425
175
550
750
1050
600
40
425
425
100
425
900
325
1050
600
40
225
225
65
250
550
225
900
350
50
50
75
40
155
250
120
500
30
Freq
M
M
M
M
K
K
K
K
K
M
M
M
M
K
K
K
K
M
M
M
M
K
K
K
K
K
M
M
M
M
K
K
K
K
K
M
M
M
M
K
K
K
K
M
I
L
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
1
Case Size
0405
0508
0612
0402
0603
0805
0805
1206
1206
0405
0508
0612
0402
0603
0805
1206
1206
0405
0508
0612
0402
0603
0805
0805
1206
1206
0405
0508
0612
0402
0603
0805
0805
1206
1206
0405
0508
0612
0402
0603
0805
0805
1206
0402
Elements
2
2
4
1
1
1
1
1
1
2
2
4
1
1
1
1
1
2
2
4
1
1
1
1
1
1
2
2
4
1
1
1
1
1
1
2
2
4
1
1
1
1
1
1
V
CIR
(DC)
V
CIR
(AC)
Cap Req
I
L
Cap
Freq
DC Circuit Voltage (V)
AC Circuit Voltage (V)
Standard or Low
Maximum Leakage Current at the Circuit Voltage (μA)
Typical Capacitance (pF) @ frequency specified and 0.5 Vrms
Frequency at which capacitance is measured (K = 1kHz, M = 1MHz)
45
UltraGuard Series
ESD Protection for Low Leakage Requirements
PHYSICAL DIMENSIONS
0402 Discrete
Length
Width
Thickness
Term Band Width
1.00 ±0.10 (0.040 ±0.004)
0.50 ±0.10 (0.020 ±0.004)
0.60 Max. (0.024 Max.)
0.25 ±0.15 (0.010 ±0.006)
mm (inches)
0603 Discrete
1.60 ±0.15 (0.063 ±0.006)
0.80 ±0.15 (0.032 ±0.006)
0.90 Max. (0.035 Max.)
0.35 ±0.15 (0.014 ±0.006)
0805 Discrete
2.01 ±0.20 (0.079 ±0.008)
1.25 ±0.20 (0.049 ±0.008)
1.02 Max. (0.040 Max.)
0.71 Max. (0.028 Max.)
0405 Array
Length
Width
Thickness
Term Band Width
1.00 ±0.15 (0.039 ±0.006)
1.37 ±0.15 (0.054 ±0.006)
0.66 Max. (0.026 Max.)
0.36 ±0.10 (0.014 ±0.004)
0508 Array
1.25 ±0.20 (0.049 ±0.008)
2.01 ±0.20 (0.079 ±0.008)
1.02 Max. (0.040 Max.)
0.41 ±0.10 (0.016 ±0.004)
0612 Array
1.60 ±0.20 (0.063 ±0.008)
3.20 ±0.20 (0.126 ±0.008)
1.22 Max. (0.048 Max.)
0.41 ±0.10 (0.016 ±0.004)
SOLDER PAD DIMENSIONS
0.61
(0.024)
0.51
1.70 (0.067
)
(0.020)
0.61
(0.024)
0.89
(0.035)
2.54
(0.100)
0.76
(0.030)
0.89
(0.035)
0.51
(0.020)
mm (inches)
1.02
(0.040)
3.05
(0.120)
1.02
(0.040)
1.02
(0.040)
1.27
(0.050)
0.76
(0.030)
0402
0612 4-Element Array
A
0.89
(0.035)
0603
0805
E
D
D
E
B
1.65
(0.065)
C
2.54
(0.100)
D
0.46
(0.018)
E
0.76
(0.030)
C
B
A
B
C
A
2-Element Arrays
A
0405
0508
0.46
(0.018)
0.89
(0.035)
B
0.74
(0.029)
1.27
(0.050)
C
1.20
(0.047)
2.16
(0.085)
D
0.38
(0.015)
0.46
(0.018)
E
0.64
(0.025)
0.76
(0.030)
46
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