V18MA1B [LITTELFUSE]
Varistor Products - Axial Lead; 压敏电阻产品 - 轴向引线
| 型号： | V18MA1B |
| 厂家： | 
LITTELFUSE |
| 描述： | Varistor Products - Axial Lead |
| 文件： | 总5页 (文件大小：97K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Varistor Products
Axial Lead
MA Varistor Series
The MA Series of transient surge suppressors are axial-lead metal-oxide
varistors (MOVs) for use in a wide variety of board level industrial and
commercial electronic equipment. They are intended to protect
components and signal/data lines from low energy transients where the
small axial lead package is required.
2
The MA Series is offered with standard (S suffix) or tightened (B suffix)
clamping voltage.
See MA Series Device Ratings and Specifications table for part number
and brand information.
Features
• 3mm Diameter Disc Size
• Small Axial Lead Package
• Wide Operating Voltage Range
V
V
. . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . .9V to 264V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13V to 365V
M(AC)RMS
M(DC)
• Available in Tape and Reel or Bulk Packaging
• No Derating Up to 85oC Ambient
127
www. lit t elf us e. c om
Varistor Products
Axial Lead
MA Varistor Series
Absolute Maximum Ratings For ratings of individual members of a series, see Device Ratings and Specifications chart
Continuous:
MA SERIES
UNITS
Steady State Applied Voltage:
AC Voltage Range (V
DC Voltage Range (V
Transient:
Peak Pulse Current (I
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 to 264
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 to 365
V
V
M(AC)RMS
M(DC)
)
TM
For 8/20µs Current Wave (See Figure 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 to 100
Single Pulse Energy Range
A
For 10/1000µs Current Wave (W ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.06 to 1.7
Operating Ambient Temperature Range (T ). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to 85
A
J
OC
TM
Storage Temperature Range (T
STG
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to 125
OC
Temperature Coefficient (αV) of Clamping Voltage (V ) at Specified Test Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <0.01
%/OC
V
MΩ
C
Hi-Pot Encapsulation (Isolation Voltage Capability). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1000
(Dielectric must withstand indicated DC voltage for one minute per MIL-STD 202, Method 301) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1000
Insulation Resistance
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the device
at these or any other conditions above those indicated in the operational sections of this specification is not implied.
Device Ratings and Specifications
o
o
MAXIMUM RATINGS (85 C)
CONTINUOUS TRANSIENT
SPECIFICATIONS (25 C)
MAX CLAMPING
VOLTAGE
AT 2.0A
PEAK
CURRENT
(8/20µs)
VARISTOR VOLTAGE AT
1mADC TEST
TYPICAL
CAPACI-
TANCE
ENERGY
(10/1000µs)
V
C
V
V
CURRENT
(8/20µs)
RMS
DC
V
V
W
I
MIN
(V)
V
MAX
(V)
V
C
f = 1MHz
(pF)
M(AC)
(V)
M(DC)
(V)
TM
TM
N(DC)
(V)
PART
NUMBER
BRAND
(J)
(A)
(V)
V18MA1A
V18MA1B
V18MA1S
18A
18B
18S
9
10
10
13
14
14
0.06
0.07
0.06
40
40
40
14
15
15
18
18
18
23
21
21
49
44
49
550
550
550
V22MA1A
V22MA1B
V22MA1S
22A
22B
22S
10
14
14
15
18
18
0.09
0.10
0.09
40
40
40
16
19
19
22
22
22
28
26
26
55
51
55
410
410
410
V27MA1A
V27MA1B
V27MA1S
27A
27B
27S
13
17
17
19
22
22
0.10
0.11
0.10
40
40
40
21
24
24
27
27
27
34
31
31
67
59
67
370
370
370
V33MA1A
V33MA1B
V33MA1S
33A
33B
33S
18
20
20
23
26
26
0.13
0.15
0.14
40
40
40
26
29.5
29.5
33
33
33
40
36.5
36.5
73
67
73
300
300
300
V39MA2A
V39MA2B
V39MA2S
39A
39B
39S
22
25
25
28
31
31
0.16
0.18
0.17
40
40
40
31
35
35
39
39
39
47
43
43
86
79
86
250
250
250
V47MA2A
V47MA2B
V47MA2S
47A
47B
47S
27
30
30
34
38
38
0.19
0.21
0.19
40
40
40
37
42
42
47
47
47
57
52
52
99
90
99
210
210
210
V56MA2A
V56MA2B
V56MA2S
56A
56B
56S
32
35
35
40
45
45
0.23
0.25
0.23
40
40
40
44
50
50
56
56
56
68
62
62
117
108
117
180
180
180
V68MA3A
V68MA3B
V68MA3S
68A
68B
68S
38
40
40
48
56
56
0.26
0.30
0.27
40
40
40
54
61
61
68
68
68
82
75
75
138
127
138
150
150
150
V82MA3A
V82MA3B
V82MA3S
82A
82B
82S
45
50
50
60
66
66
0.33
0.37
0.34
40
40
40
65
73
73
82
82
82
99
91
91
163
150
163
120
120
120
128
www. lit t elf us e. c om
Varistor Products
Axial Lead
MA Varistor Series
Device Ratings and Specifications (Continued)
o
o
MAXIMUM RATINGS (85 C)
SPECIFICATIONS (25 C)
CONTINUOUS TRANSIENT
MAX CLAMPING
VOLTAGE
AT 2.0A
PEAK
CURRENT
(8/20µs)
VARISTOR VOLTAGE AT
1mA DC TEST
TYPICAL
CAPACI-
TANCE
2
ENERGY
(10/1000µs)
V
C
V
V
CURRENT
(8/20µs)
RMS
DC
V
V
W
I
MIN
(V)
V
MAX
(V)
V
C
f = 1MHz
(pF)
M(AC)
(V)
M(DC)
(V)
TM
TM
N(DC)
(V)
PART
NUMBER
BRAND
(J)
(A)
(V)
V100MA4A
V100MA4B
V100MA4S
100
101
102
57
60
60
72
81
81
0.40
0.45
0.42
40
40
40
80
90
90
100
100
100
120
110
110
200
185
200
100
100
100
V120MA1A
V120MA2B
V120MA2S
120
121
122
72
75
75
97
101
101
0.40
0.50
0.46
100
100
100
102
108
108
120
120
120
138
132
132
220
205
220
40
40
40
V150MA1A
V150MA2B
150
151
88
92
121
127
0.50
0.60
100
100
127
135
150
150
173
165
255
240
32
32
V180MA1A
V180MA3B
180
181
105
110
144
152
0.60
0.70
100
100
153
162
180
180
207
198
310
290
27
27
V220MA2A
V220MA4B
220
221
132
138
181
191
0.80
0.90
100
100
187
198
220
220
253
242
380
360
21
21
V270MA2A
V270MA4B
270
271
163
171
224
235
0.90
1.00
100
100
229
243
270
270
311
297
460
440
17
17
V330MA2A
V330MA5B
330
331
188
200
257
274
1.00
1.10
100
100
280
297
330
330
380
363
570
540
14
14
V390MA3A
V390MA6B
390
391
234
242
322
334
1.20
1.30
100
100
331
351
390
390
449
429
670
640
12
12
V430MA3A
V430MA7B
430
431
253
264
349
365
1.50
1.70
100
100
365
387
430
430
495
473
740
700
11
11
NOTE: Average power dissipation of transients not to exceed 200mW.
Power Dissipation Ratings
100
Should transients occur in rapid succession, the average power dissipation
required is simply the energy (watt-seconds) per pulse times the number
of pulses per second. The power so developed must be within the specifi-
cations shown on the Device Ratings and Specifications table for the
specific device. Furthermore, the operating values need to be derated at
high temperatures as shown in Figure 1. Because varistors can only
dissipate a relatively small amount of average power they are, therefore,
not suitable for repetitive applications that involve substantial amounts of
average power dissipation.
90
80
70
60
50
40
30
20
10
0
-55 50 60 70 80 90 100 110 120 130 140 150
o
AMBIENT TEMPERATURE ( C)
FIGURE 1. CURRENT, ENERGY AND POWER DERATING
CURVE
129
www. lit t elf us e. c om
Varistor Products
Axial Lead
MA Varistor Series
100
90
O
= Virtual Origin of Wave
1
T = Time From 10% to 90% of Peak
T
T
= Virtual Front time = 1.25 • t
= Virtual Time to Half Value (Impulse Duration)
1
2
50
Example: For an 8/20µs Current Waveform:
8µs = T = Virtual Front Time
1
20µs = T = Virtual Time to Half Value
2
10
O
T
TIME
1
T
1
T
2
FIGURE 2. PEAK PULSE CURRENT TEST WAVEFORM
Transient V-I Characteristics Curves
800
4,000
MAX CLAMPINGVOLTAGE
DISC SIZE 3mm
V100MA4A/S
V82MA3A/S
V68MA3A/S
V56MA2A/S
MAX CLAMPINGVOLTAGE
DISC SIZE 3mm
V430MA3A
V390MA3A
V330MA2A
V270MA2A
V220MA2A
600
400
300
18 TO 100V
RATING
120 TO 430V
RATING
N(DC)
N(DC)
o
o
o
o
T
= -55 C TO 85 C
2,000
1,500
T
= -55 C TO 85 C
A
A
200
150
1,000
800
600
100
80
400
200
100
60
V47MA2A/S
V39MA2A/S
V33MA1A/S
40
30
V27MA1A/S
V180MA1A
V150MA1A
V120MA1A/S
V22MA1A/S
V18MA1A/S
20
10
-2
-1
0
1
2
-2
10
-1
0
1
2
10
10
PEAK AMPERES (A)
10
10
10
10
PEAK AMPERES (A)
10
10
FIGURE 3. CLAMPINGVOLTAGE FOR V18MA1A/S- V100MA4A/S
FI GURE 4. CLAMPINGVOLTAGE FORV120MA1A/S-
V430MA3A
600
4,000
MAX CLAMPINGVOLTAGE
500
MAXIMUM CLAMPINGVOLTAGE
DISC SIZE 3mm
400
3,000
2,000
DISC SIZE 3mm
120 TO 430V
18 TO 100V
RATING
RATING
= -55 C TO 85 C
N(DC)
N(DC)
V100MA4B
V82MA3B
V68MA3B
o
o
o
o
T
= -55 C TO 85 C
300
T
A
A
200
V430MA7B
V390MA6B
V330MA5B
V270MA4B
V220MA4B
1,000
900
800
700
600
100
90
500
400
V180MA3B
80
70
V150MA2B
60
50
V56MA2B
V47MA2B
V120MA2B
300
V39MA2B
40
V33MA1B
200
V27MA1B
30
V22MA1B
V18MA1B
20
10
100
10
-3
-2
10
-1
10
0
1
2
3
-3
-2
10
-1
10
0
1
2
3
10
PEAK AMPERES (A)
10
10
10
10
10
10
10
PEAK AMPERES (A)
FIGURE 5. CLAMPINGVOLTAGE FOR V18MA1B - V100MA4B
FIGURE 6. CLAMPINGVOLTAGE FOR V120MA2B - V430MA7B
130
www. lit t elf us e. c om
Varistor Products
Axial Lead
MA Varistor Series
Pulse Rating Curves
100
50
50
1
DISC SIZE 3mm
V120MA1A -V430MA7B
DISC SIZE 3mm
1
2
2
V18MA1A -V100MA4B
20
10
10
3
20
10
5
5
10
10
10
5
4
2
6
2
2
10
10
10
10
5
10
10
6
3
10
10
4
2
1
2
1
0.5
0.5
INDEFINITE
INDEFINITE
0.2
0.1
0.2
0.1
20
100
1,000
IMPULSE DURATION (µs)
10,000
20
100
1,000
10,000
IMPULSE DURATION (µs)
FIGURE 8. SURGE CURRENT RATING CURVES FOR
V120MA SERIES - V430MA SERIES
FIGURE 7. SURGE CURRENT RATING CURVES FORV18MA
SERIES - V100MA SERIES
NOTE: If pulse ratings are exceeded, a shift of V
N(DC)
(at specified current) of more than ±10% could result. This type of shift, which normally results in a decrease of V ,
N(DC)
may result in the device not meeting the original published specifications, but it does not prevent the device from continuing to function, and to provide ample protection.
Tape and Reel Specification
Mechanical Dimensions
H1 = H2 ± 0.040
0.063
MAX
0.063
MAX
H1
H2
0.098-
0.177
0.135-
0.145
0.02-
0.023
INCHES
MILLIMETERS
0.200
SYMBOL
MIN
MAX
MIN
MAX
0.66
4.5
± 0.020
Øb
ØD
G
0.024
0.135
0.098
0.118
1.130
0.026
0.177
0.177
0.236
1.220
0.61
3.43
3.43
3.0
0.118-
0.236
4.5
H
6.0
0.080
MAX
L
28.70
31.0
Typical Weight = 25g
2.062
± 0.059
0.240
± 0.040
0.240
± 0.040
Ordering Information
V XXX MA XX
2.681
MAX
ENERGY/CLAMPING
VOLTAGE VARIANT
• Conforms to EIA Standard RS-296E
VARISTOR VOLTAGE
(V at 1mA)
SERIES DESIGNATOR
Bulk
Use “MT” for Tape and Reel
N
131
www. lit t elf us e. c om
相关型号：
V18MLA0402WH
RESISTOR, VOLTAGE DEPENDENT, 18V, 0.1J, SURFACE MOUNT, CHIP, 0402, LEAD FREE
LITTELFUSE
©2020 ICPDF网 联系我们和版权申明