High Temperature +175°C Automotive Series
+175°C Rated Varistors
GENERAL DESCRIPTION
AVX High Temperature 175°C Multi-Layer Varistors are designed for underhood and other high
temperature automotive or industrial applications. Parts are AEC-Q200 qualified.
They offer bi-directional overvoltage protection as well as EMI/RFI attenuation in a single SMT
package. This allows designers the ability to combine the circuit protection and EMI/RFI attenuation
function into a single highly reliable device.
Products have been tested, qualified, and specified to 175ºC and they do not require any derating over
specified operating temperature range.
FEATURES
• +175°C rated, with no derating
• High Reliability
• AEC Q200Qualified
• Bi-Directional protection
• EMI/RFI attenuation
• ESD rated to 25kV (HBM ESD Level 6)
APPLICATIONS
• Under hood
• Down Hole Drilling
• High temperature Automotive and Industrial
Applications
Varistor Temp
Rated
HOW TO ORDER
VT A7
Automotive
175°C
0603
Case
Size
0603
0805
18
Working
Voltage
18 =18Vdc
31 =31Vdc
400
Clamping
Voltage
400 = 42V
650 = 65V
670 = 67V
R
Package
D = 7" (1,000)
R = 7" (4,000)
T = 13"(10,000)
P
Termination
P = Ni/Snplated
A
Energy
Rating
A =0.1J
C =0.3J
GENERAL
CHARACTERISTICS
• Operating Temp.: -55 to +175°C
• Working Voltage: 18, 31Vdc
• Case Size: 0603, 0805
mm(inches)
Size (EIA) Length (L) Width (W) Max Thickness (T) Land Length (t)
0603 1.60±0.15
(0.063±0.006)
0.80±0.15
(0.031±0.006)
0.90
(0.035)
0.35±0.15
(0.014±0.006)
0805 2.01±0.20
(0.079±0.008)
1.25±0.20
(0.049±0.008)
1.02
(0.040)
0.71 max.
(0.028 max.)
ELECTRICAL CHARACTERISTICS
DIMENSIONS
VW(DC) DC Working Voltage [V]
VW(AC) AC Working Voltage [V]
VBTypical Breakdown Votage [V @ 1mADC]
VCClamping Voltage [V @IIV]
IVC Test Current forVC
ILMaximum leakage current at the working voltage [μA]
ET
ELD
IP
Cap
VJump
PDiss. Max
Transient Energy Rating [J, 10x1000μS]
Load Dump Energy (x10)
Peak Current Rating [A, 8x20μS]
Typical capacitance [pF] @ frequency specified and 0.5VRMS
Jump Start (V)
Power Dissipation (W)
AVX PN VW(DC) VW(AC) VBVCIVC ILETELD IPCap VJump PDiss. Max
Vdc Vac V V A μA J J A pF V W
VTA7060318A400 18 13 23±10% 42 1 10 0.1 0.25 30 275 27.5 0.003
VTA7080518C400 18 13 25.5±10% 42 1 10 0.3 1 120 450 27.5 0.007
VTA7060331A670 31 25 39±10% 67 1 10 0.1 0.25 30 90 29 0.005
VTA7080531C650 31 25 39±10% 65 1 10 0.3 1 80 275 29 0.005
LW
T
t
High Temperature +175°C Automotive Series
+175°C Rated Varistors
POWER DERATING CURVE (CURRENT, ENERGY, POWER)
0
20
40
60
80
100
120
-60 -40 -20 0 20 40 60 80 100 120 140 160 180 200
% Rating Value
Temperature (°C)
CAPACITANCE VS TEMPERATURE
0
100
200
300
400
500
600
700
-60 -40 -20 0 20 40 60 80 100 120 140 160 180
Capacitance (pF)
Temperature (°C)
0603 18V
0603 31V
0805 18V
0805 31V
High Temperature +175°C Automotive Series
+175°C Rated Varistors
V-I CHARACTERISTICS
0
10
20
30
40
50
60
1.E-07 1.E-05 1.E-03 1.E-01 1.E+01
Voltage (V)
Current (A)
VTA7060318A400
25C
150C
175C
0
10
20
30
40
50
60
1.E-07 1.E-05 1.E-03 1.E-01 1.E+01
Voltage (V)
Current (A)
VTA7080518C400
25C
150C
175C
0
20
40
60
80
100
1.E-07 1.E-05 1.E-03 1.E-01 1.E+01
Voltage (V)
Current (A)
VTA7060331A650
25C
150C
175C
0
20
40
60
80
100
1.E-07 1.E-05 1.E-03 1.E-01 1.E+01
Voltage (V)
Current (A)
VTA7080531C650
25C
150C
175C
High Temperature +175°C Automotive Series
+175°C Rated Varistors
FORWARD TRANSMISSION CHARACTERISTICS (S21)
ESD RATING
AVX PN IEC 61000-4-2 ISO 10605 AEC-Q200(Lvl.6)
150 pF / 330 Ω
Contact Discharge
330 pF / 330 Ω
Contact Discharge
330 pF / 2000 Ω
Contact Discharge
150 pF / 2000 Ω
Air Discharge
VTA7060318A400 25 kV 30 kV 30 kV 25 kV
VTA7080518C400 30 kV 30 kV 30 kV 25 kV
VTA7060331A670 30 kV 30 kV 30 kV 25 kV
VTA7080531C650 30 kV 30 kV 30 kV 25 kV
-50
-40
-30
-20
-10
0
0.1 1 10 100 1000 10000
Insertion Loss (dB)
Frequency (MHz)
VTA7060318A400
VTA7060331A650
VTA7080518C400
VTA7080531C650