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V385LA20A 데이터시트 PDF




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부품번호 V385LA20A 기능
기능 Line Voltage Operation/ Radial Lead
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V385LA20A 데이터시트, 핀배열, 회로
Varistor Products
Line Voltage Operation, Radial Lead
Next
LA Varistor Series
The LA Series of transient voltage surge suppressors are radial-lead
varistors (MOVs) that are designed to be operated continuously across
AC power lines. These UL recognized varistors require very little
mounting space, and are offered in various standard lead form options.
The LA Series varistors are available in four model sizes: 7mm, 10mm,
14mm and 20mm; and have a VM(AC)RMS voltage range from 130V
to 1000V, and an energy absorption capability up to 360J. Some LA
series model numbers are available with clamping voltage selections,
designated by a model number suffix of either A or B. The Aselection is
the standard model; the Bselection provides a lower clamping voltage.
See LA Series Device Ratings and Specifications table for part number
and brand information.
Features
Energy Absorption Capability (WTM) . . .. . . . . . . . . . . . . . . . . Up to 360J
Wide Operating Voltage Range
VM(AC)RMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130V to 1000V
No Derating Up to 85oC Ambient
Available in Tape and Reel or Bulk Pack
AGENCY APPROVALS: Recognized under the components program of
Underwriters Laboratories. Certified by CSA, VDE and CECC.
AGENCY FILE NUMBERS: UL E75961, E56529, E135010; CSA
LR91788; VDE 116895E; CECC 42201-006.
ALSO SEE LITTELFUSE ULTRAMOV
AND C-III VARISTOR SERIES
Previous
DVE
®
®
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V385LA20A pdf, 반도체, 판매, 대치품
Varistor Products
Line Voltage Operation, Radial Lead
LA Varistor Series
Device Ratings and Specifications (Continued)
MAXIMUM RATING (85 oC)
SPECIFICATIONS (25oC)
PART
NUMBER
MODEL
SIZE
DISC
DIA.
(mm)
DEVICE
MODEL
NUMBER
BRAND-
ING
CONTINUOUS
VRMS
VDC
TRANSIENT
PEAK
ENERGY CURRENT
10 x 1000µs 8 x 20µs
VM(AC) VM(DC)
(V) (V)
WTM
(J)
ITM
(A)
VARISTOR VOLT-
AGE AT 1mA DC
TEST CURRENT
VNOM
MIN
VNOM
MAX
(V)
MAXIMUM
CLAMPING
VOLTAGE
8 x 20µs
VC IPK
(V) (A)
TYPICAL
CAPACI-
TANCE
f = 1MHz
C
(pF)
V660LA10
10 660L
660 850
70
2500
940 1250 1650 25
70
V660LA50A
14 660L50
660 850
140
4500
940 1250 1650 50
200
V660LA100B
20 660L100 660 850
250
6500
940 1250 1650 100
400
V1000LA80A
14 1000L80
1000 1200
220
4500
1425 1800 2700 50
130
V1000LA160B
20 1000L160 1000 1200
360
6500
1425 1600 2420 100
250
NOTE: Average power dissipation of transients not to exceed 0.25W, 0.4W, 0.6W or 1W for model sizes 7mm, 10mm, 14mm and 20mm, respectively.
2
Power Dissipation Ratings
Should transients occur in rapid succession, the average power dissipation
is the energy (watt-seconds) per pulse times the number of pulses per
second. The power so developed must be within the specifications shown
on the Device Ratings and Specifications table for the specific device.The
operating values of a MOV need to be derated at high temperatures as
shown in Figure 1. Because varistors only dissipate a relatively small
amount of average power they are not suitable for repetitive applications
that involve substantial amounts of average power dissipation.
100
90
80
70
60
50
40
30
20
10
0
-55 50 60 70 80 90 100 110 120 130 140 150
AMBIENT TEMPERATURE ( oC)
FIGURE 1. CURRENT, ENERGY AND POWER DERATING
CURVE
100
90
50
10
O1
T
T1
T2
TIME
O1 = Virtual Origin of Wave
T = Time From 10% to 90% of Peak
T1 = Virtual Front time = 1.25 • t
T2 = Virtual Time to Half Value (Impulse Duration)
Example: For an 8/20µs Current Waveform:
8µs = T1 = Virtual Front Time
20µs = T2 = Virtual Time to Half Value
FIGURE 2. PEAK PULSE CURRENT TEST WAVEFORM
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V385LA20A 전자부품, 판매, 대치품
Varistor Products
Line Voltage Operation, Radial Lead
Next
Previous
LA Varistor Series
Pulse Rating Curves
2,000
1,000
500
200
100
1
2
10
102
50
MODEL SIZE 7mm
V130LA1 -V480LA7
101301401506
20
10
5 INDEFINITE
2
1
20 100
1,000
IMPULSE DURATION ( µs)
10,000
FIGURE 14. SURGE CURRENT RATING CURVES FOR
V130LA1 - V480LA7
5,000
2,000
1,000
500
1
2
10
200
100
50
MODEL SIZE 10mm
V130LA5 -V660LA10
101201301401506
20
10 INDEFINITE
5
2
20 100
1,000
IMPULSE DURATION ( µs)
10,000
FIGURE 15. SURGE CURRENT RATING CURVES FOR
V130LA5 - V660LA10
5,000
2,000
1
2
1,000 10
500
200
100
50
MODEL SIZE 14mm
V130LA10A -V320LA20A
101201301401506
5,000
2,000
1
2
1,000 10
500
200
100
50
MODEL SIZE 14mm
V385LA20A -V1000LA80A
101201301401506
20
10 INDEFINITE
5
20
10 INDEFINITE
5
2
20 100
1,000
IMPULSE DURATION ( µs)
10,000
FIGURE 16. SURGE CURRENT RATING CURVES FOR
V130LA10A - V320LA20A
2
20 100
1,000
IMPULSE DURATION ( µs)
10,000
FIGURE 17. SURGE CURRENT RATING CURVES FOR
V385LA20A - V1000LA80A
10,000
1
5,000
2,000
1,000
500
2
10
MODEL SIZE 20mm
V130LA20A -V320LA40B
101201301401506
10,000
1
5,000
2,000
1,000
500
2
10
MODEL SIZE 20mm
V385LA40B -V1000LA160B
101201301401506
200 200
100 100
50 50
20
10 INDEFINITE
5
20
10 INDEFINITE
5
2
1
20 100
1,000
10,000
IMPULSE DURATION ( µs)
FIGURE 18. SURGE CURRENT RATING CURVES FOR
V130LA20A - V320LA40B
2
1
20 100
1,000
10,000
IMPULSE DURATION ( µs)
FIGURE 19. SURGE CURRENT RATING CURVES FOR
V385LA40B - V1000LA160B
NOTE: If pulse ratings are exceeded, a shift of VN(DC) (at specified current) of more than ±10% could result. This type of shift, which normally results in a decrease of VN(DC),
may result in the device not meeting the original published specifications, but does not prevent the device from continuing to function, and to provide ample protection.
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