StaticGuard Datasheet

StaticGuard
AVX Multilayer Ceramic Transient Voltage Suppressors
ESD Protection for CMOS, Bi Polar and SiGe Based Systems
GENERAL DESCRIPTION
The StaticGuard Series are low capacitance versions of the
TransGuard and are designed for general ESD protection of
CMOS, Bi-Polar, and SiGe based systems. The low capacitance
makes these products suitable for use in high speed data transmission lines.
GENERAL
CHARACTERISTICS
• Operating Temperature:
-55ºC to 125ºC
• Working Voltage: ≤ 18Vdc
• Case Size: 0402, 0603, 0805, 1206
FEATURES
APPLICATIONS
• Typical ESD failure voltage for CMOS
and/or Bi Polar is ≥ 200V
• Low capacitance (<200pF) is
required for high-speed data
transmission.
• Low leakage current (IL) is necessary
for battery operated equipment.
• 15kV ESD pulse (air discharge) per
IEC 61000-4-2, Level 4, generates
< 20 millijoules of energy.
•Sensors
• CMOS
• SIGe based systems
• Higher speeed data lines
• Capacitance sensitive applications
and more
HOW TO ORDER
VC
06
LC
18
X
500
R
P
Varistor
Chip
Case
Size
Low Cap
Design
Working
Voltage
Energy
Rating
Clamping
Voltage
Termination
18 = 18.0VDC
A = 0.10 Joules
V = 0.02 Joules
X = 0.05 Joules
500 = 50V
Packaging
(PCS/REEL)
04 = 0402
06 = 0603
08 = 0805
P = Ni/Sn
D = 1,000*
R = 4,000*
T = 10,000*
W = 10,000**
*Not available for 0402
**Only available for 0402
ELECTRIAL CHARACTERISTICS
VW(DC)
VW(AC)
VB
VC
IVC
AVX PN
VW (DC)
VW (AC)
VB
VC
IVC
IL
ET
IP
Cap
Freq
Size
VC04LC18V500
VC06LC18X500
VC08LC18X500
VC12LC18A500
≤18.0
≤18.0
≤18.0
≤18.0
≤14.0
≤14.0
≤14.0
≤14.0
25-40
25-40
25-40
25-40
50
50
50
50
1
1
1
1
10
10
10
10
0.02
0.05
0.1
0.1
15
30
30
30
40
50
80
200
M
M
M
K
0402
0603
0805
1206
DC Working Voltage [V]
AC Working Voltage [V]
Typical Breakdown Votage (Min-Max)
[V @ 1mADC, 25°C]
Clamping Voltage [V @ IIVC]
Test Current for VC [A, 8x20μs]
IL
ET
IP
Cap
Maximum leakage current at the working
voltage, 25°C [μA]
Transient Energy Rating [J, 10x1000μS]
Peak Current Rating [A, 8x20μS]
Typical capacitance [pF] @ frequency specified
and 0.5VRMS, 25°C, K = 1kHz, M = 1MHz
23
StaticGuard
AVX Multilayer Ceramic Transient Voltage Suppressors
ESD Protection for CMOS, Bi Polar and SiGe Based Systems
TYPICAL PERFORMANCE DATA
StaticGuard ESD RESPONSE
VC06LC18X500 Capacitance Histogram
IEC 61000-4-2
(8 Kv Contact Discharge)
50
30%
VC08LC18A500
25%
Clamping Voltage (V)
VC12LC18A500
20%
15%
10%
45
VC06LC18X500
40
35
5%
0%
45
50
55
60
Capacitance (pF @ 1MHz & 0.5V)
Measured Data
30
1
65
10
100
1000
Number of ESD Strikes
10000
Calculated
VC08LC18A500 Capacitance Histogram
StaticGuard S21
14%
14%
12%
12%
10%
10%
8%
8%
6%
6%
4%
4%
2%
2%
0
DB
VC12LC18A500
0%
61
63
65
1MHz, 0.5VRMS
67
69
71
73 75 77 79
Capacitance (pF)
Measured Data
81
83
85
87
89
VC08LC18A500
-10
-20
VC06LC18X500
-30
0%
-40
0
500
1000
1500
Frequency (MHz)
Calculated Distribution
VC12LC18A500 Capacitance Histogram
2000
2500
VI Curves - StaticGuard Products
100
14%
12%
12%
10%
10%
8%
8%
6%
6%
4%
4%
2%
2%
80
Voltage (V)
14%
60
40
20
0%
161 163 165 167 169 171 173 175 177 179 181 183 185 187 189
0%
0
10-9
10-6
10-3
Current (A)
Capacitance (pF)
1MHz, 0.5VRMS
24
Measured Data
Calculated Distribution
06LC
08LC
10+0
12LC
10+3
10LC
StaticGuard
AVX Multilayer Ceramic Transient Voltage Suppressors
TYPICAL PERFORMANCE CURVES (0402 CHIP SIZE)
VOLTAGE/CURRENT CHARACTERISTICS
PULSE DEGRADATION
Multilayer construction and improved grain structure result in
excellent transient clamping characteristics up to 20 amps
peak current, while maintaining very low leakage currents
under DC operating conditions. The VI curves below show the
voltage/current characteristics for the 5.6V, 9V, 14V, 18V and
low capacitance StaticGuard parts with currents ranging from
parts of a micro amp to tens of amps.
Traditionally varistors have suffered degradation of electrical
performance with repeated high current pulses resulting in
decreased breakdown voltage and increased leakage current. It has been suggested that irregular intergranular
boundaries and bulk material result in restricted current
paths and other non-Schottky barrier paralleled conduction
paths in the ceramic. Repeated pulsing of TransGuard®
transient voltage suppressors with 150Amp peak 8 x 20μS
waveforms shows negligible degradation in breakdown
voltage and minimal increases in leakage current. This
does not mean that TransGuard® suppressors do not suffer
degradation, but it occurs at much higher current.
100
VC04LC18V500
VC040218X400
VC040214X300
VC040209X200
VC040205X150
Voltage (V)
80
ESD TEST OF 0402 PARTS
60
35
40
VC04LC18V500
30
0
10-9
10-7
10-5
10-3
10-1
10
103
BREAKDOWN VOLTAGE (Vb)
20
105
Current (A)
PEAK POWER VS PULSE DURATION
25
20
VC040214X300
15
VC040209X200
10
1300
VC040218X400
VC040205X150
1200
5
1100
10
100
1000
10000
8kV ESD STRIKES
VC040218X400
VC040214X300
VC040209X200
VC04LC18V500
VC040205X150
1000
800
INSERTION LOSS CHARACTERISTICS
0
700
-5
600
500
-10
dB
PEAK POWER (W)
900
400
300
200
VC04LC18V
VC040218X
-15 VC040214X
VC040209X
VC040205X
-20
100
0
10
100
IMPULSE DURATION (μS)
1000
-25
0.01
0.1
1
10
Frequency (GHz)
25