VC120630D650DP Datasheet, PDF (10/10 Pages) AVX Corporation – AVX Multilayer Ceramic Transient Voltage Suppressors

TransGuard^®
AVX Multilayer Ceramic Transient Voltage Suppressors
TYPICAL PERFORMANCE CURVES (0603, 0805, 1206 & 1210 CHIP SIZES)
PULSE DEGRADATION
Traditionally varistors have suffered degradation of electrical perfor-
mance 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.
This does not mean that TransGuard^® suppressors do not suffer
degradation, but it occurs at much higher current. The plots
of typical breakdown voltage vs number of 150A pulses are
shown below.
Repetitive Peak Current Strikes
TransGuard^® 1206 0.4J Product
10%
VC120618D400
8%
VC120626D580
6%
VC120614D300
4%
VC120605D150
2%
0%
0
100 200 300 400 500 600
Number of Strikes
Figure 1
Repetitive Peak Current Strikes
TransGuard^® 0805 0.1J and 0.3J Products
15%
10%
5%
VC080518A400
VC080518C400
0%
0
100 200 300 400 500 600
Number of Strikes
Figure 2
Repetitive Peak Current Strikes
TransGuard^® 1210 1.5J Product
10%
8%
6%
VC121018J390
4%
2%
0%
0
100 200 300 400 500 600
Number of Strikes
Figure 3
Repetitive Peak Current Strikes
StaticGuard 0805 0.1J Product
30%
25%
20%
15%
10%
5%
VC08LC18A500
0%
0
100 200 300 400 500 600
Number of Strikes
Figure 4
CAPACITANCE/FREQUENCY
CHARACTERISTICS
TransGuard^® Capacitance vs Frequency 0603
100
TransGuard^® Capacitance vs Frequency 0805
100
TransGuard^® Capacitance vs Frequency 1206
100
80
80
80
VC080505C150
60
60
40
40
60
VC120614D300
40
20
20
VC060305A150
0 ^VC06LC18X500
0
VC060326A580
0
20
40
60
80
100
0
Frequency (MHz)
20
VC080518C400
0
VC080514A300
20
40
60
80
100
0
Frequency (MHz)
VC120648D101
VC12LC18A500
20
40
60
80
100
Frequency (MHz)
10