VC120618D400DP AVX Corporation, VC120618D400DP Datasheet - Page 6

• Manufacturer Part Number: VC120618D400DP
• Description: VARISTOR TVS 18VDC 150A 1206
• Manufacturer: AVX Corporation
• Series: TransGuard®r

Specifications of VC120618D400DP

• Package / Case: 1206 (3216 Metric)
• Varistor Voltage: 25.5V
• Current-surge: 150A
• Number Of Circuits: 1
• Maximum Ac Volts: 13VAC
• Maximum Dc Volts: 18VDC
• Energy: 0.40J
• Voltage Rating Dc: 18 V
• Voltage Rating Ac: 13 V
• Clamping Voltage: 42 V
• Peak Surge Current: 150 Amps
• Surge Energy Rating: 0.4 J
• Capacitance: 900 pF
• Operating Temperature Range: - 55 C to + 125 C
• Current Rating: 1 Amp
• Dimensions: 1.6 mm W x 3.2 mm L x 1.02 mm H
• Mounting: SMD/SMT
• Product: MLV
• Termination Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 478-2521-2

6
TransGuard
AVX Multilayer Ceramic Transient Voltage Suppressors
TYPICAL PERFORMANCE CURVES
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.
PEAK POWER VS PULSE DURATION
100
80
60
40
20
0
10
1300
1200
1100
1000
-9
900
800
700
600
500
400
300
200
100
0
10
10
-7
VC04LC18V500
VC040218X400
VC040214X300
VC040209X200
VC040205X150
10
IMPULSE DURATION (μS)
-5
10
Current (A)
-3
100
VC040218X400
VC040214X300
VC040209X200
VC04LC18V500
VC040205X150
®
10
-1
10
1000
10
3
(0402 CHIP SIZE)
10
5
ESD TEST OF 0402 PARTS
INSERTION LOSS CHARACTERISTICS
PULSE DEGRADATION
Traditionally varistors have suffered degradation of electrical
performance with repeated high current pulses resulting in
decreased breakdown voltage and increased leakage cur-
rent. 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
sient 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
degradation, but it occurs at much higher current.
-10
-15
-20
-25
-5
0.01
0
VC04LC18V
VC040218X
VC040214X
VC040209X
VC040205X
35
30
25
20
15
10
5
10
VC04LC18V500
VC040218X400
VC040214X300
VC040209X200
VC040205X150
0.1
100
8kV ESD STRIKES
Frequency (GHz)
®
suppressors do not suffer
1000
1
10000
®
10
tran-