TransGuard®
Multilayer Ceramic Transient Voltage Suppressors
GENERAL DESCRIPTION
TransGuard® multilayer varistors are zinc oxide (ZnO) based ceramic semiconductor devices with non-linear voltage-current
characteristics (bi-directional) similar to back- to-back zener diodes. They have the added advantage of greater current and
energy handling capabilities as well as EMI/RFI attenuation.
The increasing use of electronics technologies in all areas require reliable protection against transient voltages that could
damage the electronics circuitry as well as EMI/RFI attenuation to prevent signal distortion and to meet regulatory requirements.
KYOCERA AVX TransGuard components help achieve both functions with single component.
GENERAL CHARACTERISTICS
• Operating Temperature:
-55°C to +125°C
• Working Voltage: 3.3 - 85Vdc
• Case Size: 0402 - 1812
• Energy: 0.05 - 4.2J
• Peak Current: 20 - 2000A
FEATURES
•
•
•
•
•
•
APPLICATIONS
Bi-Directional protection
Very fast response to ESD strikes
Multi-strike capability
High Reliability
EMI/RFI Filtering
Wide range of components
•
•
•
•
•
•
•
•
•
IC Protection
Micro Controllers
Relays
I/O Ports
Keyboard Protection
Portable devices
Industrial Controllers
Automation
Smart Grid
•
•
•
•
•
•
•
Telecom
LED Lights
Cameras
Base Stations
Motion detector
Alarms
and more
HOW TO ORDER
VC
1206
Varistor
Chip
Case
Size
VC = Varistor Chip
VG = Varistor Glass
0402
0603
0805
1206
1210
1812
2220
3220
18
Working
Voltage
03 = 3.3Vdc
05 = 5.6Vdc
09 = 9Vdc
12 = 12Vdc
14 = 14Vdc
16 = 16Vdc
18 = 18Vdc
22 = 22Vdc
26 = 26Vdc
30 = 30Vdc
31 = 31Vdc
38 = 38Vdc
42 = 42Vdc
45 = 45Vdc
48 = 48Vdc
56 = 56Vdc
60 = 60Vdc
65 = 65Vdc
85 = 85Vdc
D
400
Energy
Rating
Clamping
Voltage
X= 0.05J
A= 0.1J
B= 0.2J
C= 0.3J
D= 0.4J
E= 0.5J
F= 0.7J
G= 0.9J
H= 1.2J
J= 1.5-1.6J
K= 0.6J
M= 1.0J
N= 1.1J
P= 2.5-3.7J
R= 1.7J
L= 0.8J
S= 1.9-2.0J
U= 4.0-5.0J
W= 5.1-6.0J
Y= 6.5-12J
100 = 12V
150 = 18V
200 = 22V
250 = 27V
300 = 32V
380 = 38V
390 = 42V
400 = 42V
440 = 44V
490 = 49V
540 = 54V
560 = 60V
570 = 57V
580 = 60V
620 = 67V
650 = 67V
770 = 77V
800 = 80V
900 = 90V
101 = 100V
111 = 110V
121 = 120V
131 = 135V
151 = 150V
161 = 165V
R
P
Packaging
D = 7” (1000)*
R = 7” (4000 or 2000)*
T = 13” (10,000)*
W = 7” (10,000)**
Termination
P = Ni/Sn plated
Z = FLEXITERM®*
*Only available for
VC0603 - VC1210
*Not available for 0402
**Only available for 0402
The following series are available with industry proven KYOCERA AVX flexible termination
system FLEXITERM® :
VC0603, VC0805, VC1206, VC1210
FLEXITERM® is designed to enhance the mechanical flexure and temperature cycling
performance provides up to 5mm of flexure without internal cracks.
The Important Information/Disclaimer is incorporated in the catalog where these specifications came from or available
online at www.kyocera-avx.com/disclaimer/ by reference and should be reviewed in full before placing any order.
061021
– transient suppression products –
FLEXITERM®
7
TransGuard®
Multilayer Ceramic Transient Voltage Suppressors
ELECTRICAL CHARACTERISTICS
8
Part Number
V W (DC)
Vdc
V W (AC)
Vac
VB
V
VC
V
IVC
A
IL
μA
ET
J
IP
A
Cap
pF
Freq
Case
VC060303A100
VC080503A100
VC080503C100
3.3
3.3
3.3
2.3
2.3
2.3
5.0±20%
5.0±20%
5.0±20%
12
12
12
1
1
1
100
100
100
0.1
0.1
0.3
30
40
120
1450
1400
5000
K
K
K
0603
0805
0805
1206
VC120603A100
3.3
2.3
5.0±20%
12
1
100
0.1
40
1250
K
VC120603D100
3.3
2.3
5.0±20%
12
1
100
0.4
150
4700
K
1206
VC040205X150
5.6
4.0
8.5±20%
18
1
35
0.05
20
175
M
0402
VC060305A150
5.6
4.0
8.5±20%
18
1
35
0.1
30
750
K
0603
VC080505A150
5.6
4.0
8.5±20%
18
1
35
0.1
40
1100
K
0805
VC080505C150
5.6
4.0
8.5±20%
18
1
35
0.3
120
3000
K
0805
VC120605A150
5.6
4.0
8.5±20%
18
1
35
0.1
40
1200
K
1206
VC120605D150
5.6
4.0
8.5±20%
18
1
35
0.4
150
3000
K
1206
VC040209X200
9.0
6.4
12.7±15%
22
1
25
0.05
20
175
M
0402
VC060309A200
9.0
6.4
12.7±15%
22
1
25
0.1
30
550
K
0603
VC080509A200
9.0
6.4
12.7±15%
22
1
25
0.1
40
750
K
0805
VC080512A250
12.0
8.5
16±15%
27
1
25
0.1
40
525
K
0805
VC040214X300
14.0
10.0
18.5±12%
32
1
15
0.05
20
85
K
0402
VC060314A300
VC080514A300
VC080514C300
VC120614A300
14.0
14.0
14.0
14.0
10.0
10.0
10.0
10.0
18.5±12%
18.5±12%
18.5±12%
18.5±12%
32
32
32
32
1
1
1
1
15
15
15
15
0.1
0.1
0.3
0.1
30
40
120
40
350
325
900
600
K
K
K
K
0603
0805
0805
1206
VC120614D300
14.0
10.0
18.5±12%
32
1
15
0.4
150
1050
K
1206
VC121016J390
VG181216P390
VG181216P400
VG222016Y400
VC040218X400
VC060318A400
VC080518A400
VC080518C400
VC120618A400
VC120618D400
VC120618E380
VG121018J380
VC121018J390
VG181218P380
VG181218P440
VG222018W380
VG121022R440
16.0
16.0
16.0
16.0
18.0
18.0
18.0
18.0
18.0
18.0
18.0
18.0
18.0
18.0
18.0
18.0
22.0
13.0
11.0
11.0
11.0
13.0
13.0
13.0
13.0
13.0
13.0
13.0
14.0
13.0
14
14.0
14.0
17.0
25.5±10%
24.5±10%
24.5±10%
24.5±10%
25.5±10%
25.5±10%
25.5±10%
25.5±10%
25.5±10%
25.5±10%
25.5±10%
22±10%
25.5±10%
22±10%
27.5±10%
22±10%
27±10%
40
40
42
42
42
42
42
42
42
42
38
38
42
38
44
38
44
2.5
5
5
10
1
1
1
1
1
1
1
2.5
5
5
5
10
2.5
10
15
10
10
10
10
10
10
10
10
15
15
10
15
15
15
15
1.6
2.9
2.9
7.2
0.05
0.1
0.1
0.3
0.1
0.4
0.5
1.5
1.6
2.3
2.9
5.8
1.7
500
1000
1000
1500
20
30
30
100
30
150
200
400
500
800
800
1200
400
3100
7000
5000
13000
65
150
225
550
350
900
930
2300
3100
5000
5000
18000
1600
K
K
K
K
M
K
K
K
K
K
K
K
K
K
K
K
K
1210
1812
1812
2220
0402
0603
0805
0805
1206
1206
1206
1210
1210
1218
1812
2220
1210
VG222022Y440
22.0
17.0
27±10%
44
10
15
7.2
1200
18000
K
2220
VG222022Y490
VC060326A580
VC080526A580
VC080526C580
VC120626D580
VC120626F540
VC121026H560
VG121026S540
VG181226P540
22.0
26.0
26.0
26.0
26.0
26.0
26.0
26.0
26.0
17.0
18.0
18.0
18.0
18.0
20.0
18.0
20.0
20
30±10%
34.5±10%
34.5±10%
34.5±10%
34.5±10%
33.0±10%
34.5±10%
33±10%
35±10%
49
60
60
60
60
54
60
54
54
10
1
1
1
1
1
5
2.5
5
15
10
10
10
10
15
10
15
15
6.8
0.1
0.1
0.3
0.4
0.7
1.2
1.9
3
1200
30
30
100
120
200
300
400
800
12000
155
120
250
500
600
2150
1600
3000
K
K
K
K
K
K
K
K
K
2220
0603
0805
0805
1206
1206
1210
1210
1812
The Important Information/Disclaimer is incorporated in the catalog where these specifications came from or available
online at www.kyocera-avx.com/disclaimer/ by reference and should be reviewed in full before placing any order.
012317
– transient suppression products –
TransGuard®
Multilayer Ceramic Transient Voltage Suppressors
ELECTRICAL CHARACTERISTICS
Part Number
VG181226P570
VG181226P540
VG222026Y540
VG222026Y570
VG322026N570
VC060330A650
VC080530A650
VC080530C650
VC120630D650
VC121030G620
VC121030H620
VC121030S620
VC080531C650
VC120631M650
VG121031R650
VG181231P650
VG222031Y650
VC080538C770
VC120638N770
VG121038S770
VG181238U770
VG222038Y770
VG322038J920
VC120642L800
VC120645K900
VG121045S900
VG181245U900
VG222045Y900
VC120648D101
VC121048G101
VC121048H101
VC120656F111
VG121056P111
VG181256U111
VG222056Y111
VC121060J121
VC120665L131
VC120665M131
VG121065P131
VG181265U131
VG222065Y131
VC121085S151
VG181285U161
VG222085Y161
V W (DC)
V W (AC)
VB
VC
I VC
IL
V W (DC)
V W (AC)
VB
VC
IVC
IL
ET
IP
Cap
Vdc
Vac
V
V
A
μA
J
A
pF
26.0
26.0
26.0
26.0
26.0
30.0
30.0
30.0
30.0
30.0
30.0
30.0
31.0
31.0
31.0
31.0
31.0
38.0
38.0
38.0
38.0
38.0
38.0
42.0
45.0
45.0
45.0
45.0
48.0
48.0
48.0
56.0
56.0
56.0
56.0
60.0
65.0
65.0
65.0
65.0
65.0
85.0
85.0
85.0
23.0
20.0
20.0
23.0
20.0
21.0
21.0
21.0
21.0
21.0
21.0
21.0
25.0
25.0
25.0
25.0
25.0
30.0
30.0
30.0
30.0
30.0
30.0
32.0
35.0
35.0
35.0
35.0
34.0
34.0
34.0
40.0
40.0
40.0
40.0
42.0
50.0
50.0
50.0
50.0
50.0
60.0
60.0
60.0
35.0±10%
35.0±10%
33.0±10%
35.0±10%
33.0±10%
41.0±10%
41.0±10%
41.0±10%
41.0±10%
41.0±10%
41.0±10%
41.0±10%
39.0±10%
39.0±10%
39.0±10%
39.0±10%
39.0±10%
47.0±10%
47.0±10%
47.0±10%
47.0±10%
47.0±10%
47.0±10%
51.0±10%
56.0±10%
56.0±10%
56.0±10%
56.0±10%
62.0±10%
62.0±10%
62.0±10%
68.0±10%
68.0±10%
68.0±10%
68.0±10%
76.0±10%
82.0±10%
82.0±10%
82.0±10%
82.0±10%
82.0±10%
100±10%
100±10%
100±10%
57
54
54
57
57
67
67
67
67
67
67
67
65
65
65
65
65
77
77
77
77
77
92
80
90
90
90
90
100
100
100
110
110
110
110
120
135
135
135
135
135
150
165
165
5
5
10
10
10
1
1
1
1
5
5
5
1
1
2.5
5
10
1
1
2.5
5
10
10
1
1
2.5
5
10
1
5
5
1
2.5
5
10
5
1
1
2.5
5
10
1
5
10
15
15
15
15
15
10
10
10
10
10
10
10
10
15
15
15
15
10
15
15
15
15
15
15
15
15
15
15
10
10
10
15
15
15
15
10
15
15
15
15
15
35
15
15
2.5
3.0
7.8
6.8
1.1
0.1
0.1
0.3
0.4
0.9
1.2
1.9
0.3
1.0
1.7
3.7
9.6
0.3
1.1
2.0
4.2
12
1.5
0.8
0.6
2
4.0
12
0.4
0.9
1.2
0.7
2.3
4.8
9
1.5
0.8
1.0
2.7
4.5
6.5
2.0
4.5
6.8
600
800
1200
1100
400
30
30
80
120
220
280
300
80
200
300
800
1200
80
200
400
800
2000
400
180
200
300
500
1000
100
220
250
100
250
500
1000
250
100
150
350
400
800
250
400
800
3000
3000
11000
7000
5500
125
90
250
400
1750
1850
1500
250
500
1200
2600
6100
200
400
1000
1300
4200
2600
600
260
800
1200
5000
225
450
500
180
500
800
2000
400
250
250
600
600
3000
275
500
1500
DC Working Voltage (V)
AC Working Voltage (V)
Typical Breakdown Voltage (V @ 1mA DC )
Clamping Voltage (V @ I VC )
Test Current for VC (A, 8x20μS)
Maximum Leakage Current at the
Working Voltage (μA)
ET
IP
Cap
Freq
Freq
Case
K
K
K
K
K
K
M
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
1812
1812
2220
2220
3220
0603
0805
0805
1206
1210
1210
1210
0805
1206
1210
1812
2220
0805
1206
1210
1812
2220
3220
1206
1206
1210
1812
2220
1206
1210
1210
1206
1210
1812
2220
1210
1206
1206
1210
1812
2220
1210
1812
2220
Transient Energy Rating (J, 10x1000μS)
Peak Current Rating (A, 8x20μS)
Typical Capacitance (pF) @ frequency specified and 0.5 V RMS
Frequency at which capacitance is measured
(K = 1kHz, M = 1MHz)
The Important Information/Disclaimer is incorporated in the catalog where these specifications came from or available
online at www.kyocera-avx.com/disclaimer/ by reference and should be reviewed in full before placing any order.
012317
– transient suppression products –
9
TransGuard®
Multilayer Ceramic Transient Voltage Suppressors
W
L
T
t
DIMENSIONS:
Style
mm (inches)
0402
0603
0805
1206
1210
1812
2220
3220
(L) Length
mm
(in.)
1.00±0.10
(0.040±0.004)
1.60±0.15
(0.063±0.006)
2.01±0.20
(0.079±0.008)
3.20±0.20
(0.126±0.008)
3.20±0.20
(0.126±0.008)
4.50±0.30
(0.177±0.012)
5.70±0.40
(0.224±0.016)
8.20±0.40
(0.323±0.016)
(W) Width
mm
(in.)
0.50±0.10
(0.020±0.004)
0.80±0.15
(0.031±0.006)
1.25±0.20
(0.049±0.008)
1.60±0.20
(0.063±0.008)
2.49±0.20
(0.098±0.008)
3.20±0.30
(0.126±0.012)
5.00±0.40
(0.197±0.016)
5.00±0.40
(0.197±0.016)
(T) Max
Thickness
mm
(in.)
0.6
(0.024)
0.9
(0.035)
1.02
(0.040)
1.02 (0.040)
1.27 (0.050)1)
1.70 (0.067)2)
1.70
(0.067)
2.00
(0.080)
2.50
(0.098)
2.50 max. (0.098
max.)
(t) Land
Length
mm
(in.)
0.25±0.15
(0.010±0.006)
0.35±0.15
(0.014±0.006)
1.14 max. (0.045
max.)
1.00 max. (0.039
max.)
0.71 max. (0.028 0.94 max. (0.037
max.)
max.)
1.00 max. (0.039 1.30 max. (0.051
max.)
max.)
1) Applicable for: VC120618E380
2) Applicable for: VC120626F540, VC120631M650, VC120638N770, VC120642L800, VC120645K900, VC120656F111, VC120660M131
A
C
B
A
D
SOLDERING PAD:
Pad Layout
A
B
C
D
10
0402
0603
mm (inches)
0805
1206
1210
1812
2220
3220
1.61 (0.024) 0.89 (0.035) 1.02 (0.040) 1.02 (0.040) 1.02 (0.040) 1.00 (0.039) 1.00 (0.039) 2.21 (0.087)
1.51 (0.020) 0.76 (0.030) 1.02 (0.040) 2.03 (0.080) 2.03 (0.080) 3.60 (0.142) 4.60 (0.18) 5.79 (0.228)
10.21
1.70 (0.067) 2.54 (0.100) 3.05 (0.120) 4.06 (0.160) 4.06 (0.160) 5.60 (0.220) 6.60 (0.26)
(0.402)
1.51 (0.020) 0.76 (0.030) 1.27 (0.050) 1.65 (0.065) 2.54 (0.100) 3.00 (0.118) 5.00 (0.20 ) 5.50 (0.217)
The Important Information/Disclaimer is incorporated in the catalog where these specifications came from or available
online at www.kyocera-avx.com/disclaimer/ by reference and should be reviewed in full before placing any order.
012317
– transient suppression products –
TransGuard®
Multilayer Ceramic Transient Voltage Suppressors
TYPICAL PERFORMANCE CURVES (0402 CHIP SIZE)
VOLTAGE/CURRENT CHARACTERISTICS
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.
PULSE DEGRADATION
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.
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
VC040209X200
1200
5
1100
VC040205X150
10
100
1000
10000
8kV ESD STRIKES
VC040218X400
VC040214X300
VC040209X200
VC04LC18V500
VC040205X150
1000
900
800
INSERTION LOSS CHARACTERISTICS
0
700
-5
600
500
-10
400
dB
PEAK POWER (W)
VC040214X300
15
10
1300
VC040218X400
300
200
VC04LC18V
VC040218X
-15 VC040214X
VC040209X
VC040205X
-20
100
0
10
100
-25
0.01
1000
0.1
1
10
Frequency (GHz)
IMPULSE DURATION (µS)
The Important Information/Disclaimer is incorporated in the catalog where these specifications came from or available
online at www.kyocera-avx.com/disclaimer/ by reference and should be reviewed in full before placing any order.
012317
– transient suppression products –
11
TransGuard®
Multilayer Ceramic Transient Voltage Suppressors
TYPICAL PERFORMANCE CURVES (0603, 0805, 1206 & 1210 CHIP SIZES)
VOLTAGE/CURRENT CHARACTERISTICS
Multilayer construction and improved grain structure result in excellent transient clamping characteristics up to 500 amps peak current, depending on case size
and energy rating, while maintaining very low leakage currents under DC operating conditions. The VI curve below shows the voltage/current characteristics for
the 3.3V, 5.6V, 12V, 14V, 18V, 26V, 30V, 48V and 60VDC parts with currents ranging from parts of a micro amp to tens of amps.
VI Curves - 3.3V and 5.6V Products
25
Voltage (V)
20
15
10
VI Curves - 9V, 12V, and 14V Products
5
50
10-6
3.3V, 0.1J
10-3
Current (A)
3.3V, >0.1J
10+0
40
10+3
5.6V, 0.1J
Voltage (V)
0
10-9
5.6V, >0.1J
30
20
10
VI Curves - 18V and 26V Products
0
10-9
100
9V, 0.1J
80
Voltage (V)
10-6
10-3
Current (A)
12V, 0.1J
10+0
14V, 0.1J
10+3
14V, >0.1J
60
40
VI Curves - 30V, 48V, and 60V Products
20
200
10-6
18V, 0.1J
10-3
Current (A)
18V, >0.1J
10+0
10+3
26V, 0.1J
150
Voltage (V)
0
10-9
26V, >0.1J
100
VI Curve - 85V Product
50
200
Voltage (V)
160
0
10-9
10-6
120
30V, 0.1J
10-3
Current (A)
30V, >0.1J
80
40
0
1.E-09
1.E-06
1.E-03
1.E+00
1.E+03
Current (A)
12
The Important Information/Disclaimer is incorporated in the catalog where these specifications came from or available
online at www.kyocera-avx.com/disclaimer/ by reference and should be reviewed in full before placing any order.
012317
– transient suppression products –
10+0
48V
10+3
60V
TransGuard®
Multilayer Ceramic Transient Voltage Suppressors
TYPICAL PERFORMANCE CURVES (0603, 0805, 1206 & 1210 CHIP SIZES)
3.3V
The Important Information/Disclaimer is incorporated in the catalog where these specifications came from or available
online at www.kyocera-avx.com/disclaimer/ by reference and should be reviewed in full before placing any order.
012317
– transient suppression products –
13
TransGuard®
Multilayer Ceramic Transient Voltage Suppressors
TYPICAL PERFORMANCE CURVES (0603, 0805, 1206 & 1210 CHIP SIZES)
TEMPERATURE CHARACTERISTICS
TransGuard® suppressors are designed to operate over the full temperature range from -55°C to +125°C. This operating temperature range is for both surface
mount and axial leaded products.
TYPICAL ENERGY DERATING VS TEMPERATURE
1.25
1
40
30
0.8
Energy Derating
Voltage as a Percent of
Average Breakdown Voltage
Temperature Dependence of Voltage
100
90
80
70
60
50
20
10
10-9
10-8
10-7
10-6
10-5
10-4
10-3
10-2
Current (A)
-40 C
25 C
85 C
0.6
0.4
125 C
14
TYPICAL BREAKDOWN AND CLAMPING VOLTAGES
VS TEMPERATURE - 5.6V
0
-60 -40 -20
0
20
5
-55
5.6V
-40
-20
0
20
40
60
Temperature ( o C)
80
100
120
140
TYPICAL CAPACITANCE VS TEMPERATURE
+20
-40
( VB )
-20
0
20
40
60
Temperature ( o C)
80
100
120
140
150
Capacitance Relative to 25°C
18V
TYPICAL BREAKDOWN AND CLAMPING VOLTAGES
VS TEMPERATURE - 26V
+15
+10
0
-5
-10
-15
-25
( VC )
50
ge
era
Av
+5
-20
60
30
-55
140 160
+25
( VC )
40
40
100 120
150
50
20
-55
80
VB
TYPICAL BREAKDOWN AND CLAMPING VOLTAGES
VS TEMPERATURE - 18V
30
60
VC
15
10
40
Temperature ( oC)
20
25° C Reference
Typical Breakdown (VB )
and Clamping (VC ) Voltages
Typical Breakdown (VB )
and Clamping (VC ) Voltages
Typical Breakdown (VB )
and Clamping (VC ) Voltages
0.2
-40
-20
0
20
40
60
Temperature (°C)
26V
( VB )
-40
-20
0
20
40
60
Temperature (∞C)
80
100
120
140
150
The Important Information/Disclaimer is incorporated in the catalog where these specifications came from or available
online at www.kyocera-avx.com/disclaimer/ by reference and should be reviewed in full before placing any order.
012317
– transient suppression products –
80
100
120
140
TransGuard®
Multilayer Ceramic Transient Voltage Suppressors
TYPICAL PERFORMANCE CURVES (0603, 0805, 1206 & 1210 CHIP SIZES)
PULSE DEGRADATION
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 both 5.6 and 14V TransGuard® transient voltage
suppressors with 150 Amp peak 8 x 20μS waveforms shows negligible
degradation in breakdown voltage and minimal increases in leakage
current. The plots of typical breakdown voltage vs number of 150A pulses
are shown below.
Repetitive Peak Current Strikes
Repetitive Peak Current Strikes
TransGuard® 1210 1.5J Product
10%
Change in Breakdown Voltage (%)
Change in Breakdown Voltage (%)
TransGuard® 1206 0.4J Product
VC120618D400
8%
VC120626D580
6%
VC120614D300
4%
VC120605D150
2%
0%
0
100
200
300
400
Number of Strikes
500
600
10%
8%
6%
VC121018J390
4%
2%
0%
0
100
200
300
400
Number of Strikes
Figure 1
Repetitive Peak Current Strikes
Repetitive Peak Current Strikes
0%
Change in Breakdown Voltage (%)
Change in Breakdown Voltage (%)
StaticGuard 0805 0.1J Product
15%
VC080518A400
VC080518C400
5%
0
100
200
300
400
Number of Strikes
600
Figure 3
TransGuard® 0805 0.1J and 0.3J Products
10%
500
500
600
30%
25%
20%
15%
10%
VC08LC18A500
5%
0%
0
100
200
300
400
Number of Strikes
Figure 2
500
600
Figure 4
CAPACITANCE/FREQUENCY
CHARACTERISTICS
TransGuard® Capacitance vs Frequency 0805
80
80
60
40
20
VC06LC18X500
0
0
20
VC060305A150
VC060326A580
40
60
80
100
Frequency (MHz)
Capacitance Change (%)
100
Capacitance Change (%)
100
TransGuard® Capacitance vs Frequency 1206
100
VC080505C150
60
40
20
VC080518C400
0
VC080514A300
0
20
40
60
Frequency (MHz)
80
100
Capacitance Change (%)
TransGuard® Capacitance vs Frequency 0603
80
60
VC120614D300
40
20
VC120648D101
0
VC12LC18A500
0
20
40
60
Frequency (MHz)
The Important Information/Disclaimer is incorporated in the catalog where these specifications came from or available
online at www.kyocera-avx.com/disclaimer/ by reference and should be reviewed in full before placing any order.
012317
– transient suppression products –
80
100
15