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maida

20FN820K Datasheet Preview

20FN820K Datasheet

Zinc Oxide Varistor

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THERMALLY PROTECTED SERIES
INTRODUCTION
The Thermally Protected Series is designed for safe
disconnection of the varistor from the circuit due to
abnormal operating conditions. These components
consist of 2 or 3 leaded wire leads, a thermal
disconnect (FN, FM, FN), and have nominal diameters
of 14mm, 20mm, and 25mm. Fusible link designs (FF,
FT) are also available.
STYLE DESIGNATION
The Maida Style Number is the typical means to
identify our components when ordered. The style
number identifies several parameters that are
important for the characteristics of the device. An
alternative ordering method, if known, is by our Item
Number.
The following example is the standard part numbering
system when ordering our Thermally Protected Series
components by the Maida Style Number:
14 FN 201 K
1. Nominal Disk Diameter
14 – 14mm
20 – 20mm
25 – 25mm
2. Lead Configuration
FN – 2 leaded, thermal fuse
FM – 3 leaded, thermal fuse on center lead
FF – 3 leaded, fusible link on center lead
FE – 3 leaded, thermal fuse on outer lead
FT – 3 leaded, fusible link on outer lead
3. AC Voltage Rating
Two significant figures plus number
of zeroes that follow, i.e. 201 is 200 VDC
4. Varistor Voltage Range Tolerance
STANDARD MARKING
Minimum marking shall consist of an
abbreviated style designation and, when
space is available, the manufacturer’s
initials or company logo.
Example:
MDC
FV
14N201
Where:
MDC - Company Initials
FV - Fail safe Varistor
14 - Diameter
N - Series (FN, FM, FE, FF, FT)
201 - Nominal DC Voltage Rating
(200VDC)
A manufacturing date code and/or
special markings are available upon
request.
Other safety agency designations are
included where applicable.
Maida Development Company - sales@maida.com - (757) 723-0785 – www.maida.com




maida

20FN820K Datasheet Preview

20FN820K Datasheet

Zinc Oxide Varistor

No Preview Available !

THERMALLY PROTECTED SERIES
ELECTRICAL SPECIFICATIONS
Maida
Style
Number
14FE820K
14FM820K
14FN820K
20FE820K
20FM820K
20FN820K
14FE101K
14FM101K
14FN101K
20FE101K
20FM101K
20FN101K
14FE121K
14FM121K
14FN121K
20FE121K
20FM121K
20FN121K
14FE151K
14FM151K
14FN151K
20FE151K
20FM151K
20FN151K
25FE151K
25FM151K
25FN151K
14FE181K
14FM181K
14FN181K
20FE181K
20FM181K
20FN181K
25FE181K
25FM181K
25FN181K
14FE201K
14FM201K
14FN201K
20FE201K
20FM201K
20FN201K
25FE201K
25FM201K
25FN201K
14FE221K
14FM221K
14FN221K
20FE221K
20FM221K
20FN221K
25FE221K
25FM221K
25FN221K
14FE241K
14FM241K
14FN241K
20FE241K
20FM241K
20FN241K
25FE241K
25FM241K
25FN241K
14FE271K
14FM271K
14FN271K
20FE271K
20FM271K
20FN271K
25FE271K
25FM271K
25FN271K
Recognitions
To
Nominal Minimum
Safety
Size
Marking
Agency
Standards
A B C D E F (mm)
X
14 MDC-FV-14E820K
X
14 MDC-FV-14M820K
X
14 MDC-FV-14N820K
X
20 MDC-FV-20E820K
X
20 MDC-FV-20M820K
X
20 MDC-FV-20N820K
X
14 MDC-FV-14E101K
X
14 MDC-FV-14M101K
X
14 MDC-FV-14N101K
X
20 MDC-FV-20E101K
X
20 MDC-FV-20M101K
X
20 MDC-FV-20N101K
X
14 MDC-FV-14E121K
X
14 MDC-FV-14M121K
X
14 MDC-FV-14N121K
X
20 MDC-FV-20E121K
X
20 MDC-FV-20M121K
X
20 MDC-FV-20N121K
X
14 MDC-FV-14E151K
X
14 MDC-FV-14M151K
X
14 MDC-FV-14N151K
X
20 MDC-FV-20E151K
X
20 MDC-FV-20M151K
X
20 MDC-FV-20N151K
X
25 MDC-FV-25E151K
X
25 MDC-FV-25M151K
X
25 MDC-FV-25N151K
X
14 MDC-FV-14E181K
X
14 MDC-FV-14M181K
X
14 MDC-FV-14N181K
X
20 MDC-FV-20E181K
X
20 MDC-FV-20M181K
X
20 MDC-FV-20N181K
X
25 MDC-FV-25E181K
X
25 MDC-FV-25M181K
X
25 MDC-FV-25N181K
X
14 MDC-FV-14E201K
X
14 MDC-FV-14M201K
X
14 MDC-FV-14N201K
X
20 MDC-FV-20E201K
X
20 MDC-FV-20M201K
X
20 MDC-FV-20N201K
X
25 MDC-FV-25E201K
X
25 MDC-FV-25M201K
X
25 MDC-FV-25N201K
X
14 MDC-FV-14E221K
X
14 MDC-FV-14M221K
X
14 MDC-FV-14N221K
X
20 MDC-FV-20E221K
X
20 MDC-FV-20M221K
X
20 MDC-FV-20N221K
X
25 MDC-FV-25E221K
X
25 MDC-FV-25M221K
X
25 MDC-FV-25N221K
X
14 MDC-FV-14E241K
X
14 MDC-FV-14M241K
X
14 MDC-FV-14N241K
X
20 MDC-FV-20E241K
X
20 MDC-FV-20M241K
X
20 MDC-FV-20N241K
X
25 MDC-FV-25E241K
X
25 MDC-FV-25M241K
X
25 MDC-FV-25N241K
X
14 MDC-FV-14E271K
X
14 MDC-FV-14M271K
X
14 MDC-FV-14N271K
X
20 MDC-FV-20E271K
X
20 MDC-FV-20M271K
X
20 MDC-FV-20N271K
X
25 MDC-FV-25E271K
X
25 MDC-FV-25M271K
X
25 MDC-FV-25N271K
Continuous
Applied
Voltage
(AC)
50
50
50
50
50
50
60
60
60
60
60
60
75
75
75
75
75
75
95
95
95
95
95
95
95
95
95
115
115
115
115
115
115
115
115
115
130
130
130
130
130
130
130
130
130
140
140
140
140
140
140
140
140
140
150
150
150
150
150
150
150
150
150
175
175
175
175
175
175
175
175
175
(DC)
65
65
65
65
65
65
85
85
85
85
85
85
100
100
100
100
100
100
125
125
125
125
125
125
125
125
125
150
150
150
150
150
150
150
150
150
170
170
170
170
170
170
170
170
170
180
180
180
180
180
180
180
180
180
200
200
200
200
200
200
200
200
200
225
225
225
225
225
225
225
225
225
Maximum Ratings
Transient
Peak
Energy
Current
8 x 20 µsec
10 x 1000 8 x 20 # Pulses
µsec
µsec
1
2
(J)
(J)
(A) (A)
27
27 4500 2500
27
27 4500 2500
27
27 4500 2500
56
56 10000 6500
56
56 10000 6500
56
56 10000 6500
33
33 4500 2500
33
33 4500 2500
33
33 4500 2500
70
70 10000 6500
70
70 10000 6500
70
70 10000 6500
40
40 4500 2500
40
40 4500 2500
40
40 4500 2500
85
85 10000 6500
85
85 10000 6500
85
85 10000 6500
50
50 6000 4500
50
50 6000 4500
50
50 6000 4500
100
100 10000 6000
100
100 10000 6000
100
100 10000 6000
160
160 15000 12000
160
160 15000 12000
160
160 15000 12000
58
58 6000 4500
58
58 6000 4500
58
58 6000 4500
110
110 10000 6000
110
110 10000 6000
110
110 10000 6000
175
175 15000 12000
175
175 15000 12000
175
175 15000 12000
70
70 6000 4500
70
70 6000 4500
70
70 6000 4500
140
140 10000 6000
140
140 10000 6000
140
140 10000 6000
210
210 15000 12000
210
210 15000 12000
210
210 15000 12000
78
78 6000 4500
78
78 6000 4500
78
78 6000 4500
155
155 10000 6000
155
155 10000 6000
155
155 10000 6000
230
230 15000 12000
230
230 15000 12000
230
230 15000 12000
85
85 6000 4500
85
85 6000 4500
85
85 6000 4500
170
170 10000 6000
170
170 10000 6000
170
170 10000 6000
255
255 15000 12000
255
255 15000 12000
255
255 15000 12000
100
100 6000 4500
100
100 6000 4500
100
100 6000 4500
190
190 10000 6000
190
190 10000 6000
190
190 10000 6000
285
285 15000 12000
285
285 15000 12000
285
285 15000 12000
Electrical Characteristics
Max
Varistor
Clamping
Typical
Voltage
Voltage
Cap.
@1 mA DC (@Test Current)
Vmin Vmax (8 x 20µsec)
1 V rms
@1kHz
(V) (V)
(V)
(A)
(pF)
74
90
135
50
2400
74
90
135
50
2400
74
90
135
50
2400
74
90
135
100
4900
74
90
135
100
4900
74
90
135
100
4900
90 110 165
50
2000
90 110 165
50
2000
90 110 165
50
2000
90 110 165
100
4000
90 110 165
100
4000
90 110 165
100
4000
108 132 200
50
1700
108 132 200
50
1700
108 132 200
50
1700
108 132 200
100
3300
108 132 200
100
3300
108 132 200
100
3300
135 165 250
50
1300
135 165 250
50
1300
135 165 250
50
1300
135 165 250
100
2700
135 165 250
100
2700
135 165 250
100
2700
135 165 250
150
4300
135 165 250
150
4300
135 165 250
150
4300
162 198 300
50
1100
162 198 300
50
1100
162 198 300
50
1100
162 198 300
100
2200
162 198 300
100
2200
162 198 300
100
2200
162 198 300
150
3500
162 198 300
150
3500
162 198 300
150
3500
185 225 340
50
1000
185 225 340
50
1000
185 225 340
50
1000
185 225 340
100
2000
185 225 340
100
2000
185 225 340
100
2000
185 225 340
150
3200
185 225 340
150
3200
185 225 340
150
3200
198 242 360
50
900
198 242 360
50
900
198 242 360
50
900
198 242 360
100
1800
198 242 360
100
1800
198 242 360
100
1800
198 242 360
150
2900
198 242 360
150
2900
198 242 360
150
2900
216 264 395
50
830
216 264 395
50
830
216 264 395
50
830
216 264 395
100
1650
216 264 395
100
1650
216 264 395
100
1650
216 264 395
150
2650
216 264 395
150
2650
216 264 395
150
2650
243 297 455
50
740
243 297 455
50
740
243 297 455
50
740
243 297 455
100
1500
243 297 455
100
1500
243 297 455
100
1500
243 297 455
150
2400
243 297 455
150
2400
243 297 455
150
2400


Part Number 20FN820K
Description Zinc Oxide Varistor
Maker maida
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20FN820K Datasheet PDF






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maida





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