
A
B
C
D
E
Physical Characteristics
Lead Dia.
0.65
(0.026)
0.65
(0.026)
0.65
(0.026)
0.65
(0.026)
0.65
(0.026)
0.65
(0.026)
0.65
(0.026)
Model
Max.
6.5
(0.256)
6.0
(0.236)
6.5
(0.256)
6.0
(0.236)
11.0
(0.433)
10.4
(0.409)
9.0
(0.354)
Max.
11.0
(0.433)
10.0
(0.394)
11.0
(0.433)
10.0
(0.394)
13.6
(0.535)
12.6
(0.496)
12.5
(0.492)
Nom.
5.1 ± 0.7
(0.201 ± 0.028)
5.1 ± 0.7
(0.201 ± 0.028)
5.1 ± 0.7
(0.201 ± 0.028)
5.1 ± 0.7
(0.201 ± 0.028)
5.1 ± 0.7
(0.201 ± 0.028)
5.1 ± 0.7
(0.201 ± 0.028)
5.1 ± 0.7
(0.201 ± 0.028)
Min.
4.7
(0.185)
4.7
(0.185)
4.7
(0.185)
4.7
(0.185)
4.7
(0.185)
4.7
(0.185)
4.7
(0.185)
Max.
4.6
(0.181)
3.8
(0.150)
4.6
(0.181)
3.8
(0.150)
4.6
(0.181)
3.8
(0.150)
3.8
(0.150)
Style
Material
MF-RX012/250
1
Sn/Cu
MF-RX012/250U
1
Sn/Cu
MF-RX014/250
1
Sn/Cu
MF-RX014/250U
1
Sn/Cu
MF-RX018/250
1
Sn/Cu
MF-RX018/250U
1
Sn/Cu
MF-RX018/250F
2
Sn/Cu
Product Dimensions
Packaging options:
BULK: 500 pcs. per bag. TAPE & REEL: 1500 pcs. per reel (available binned).
MF-RX/250 Series -
Telecom PTC Resettable Fuses
MM
(INCHES)
DIMENSIONS =
C
D
D
B
B
E
E
A
A
C
Style 1
Style 2
Typical Part Marking
Represents total content. Layout may vary.
MF-RX012/250 ~ MF-RX018/250:
RX012
24001K
MANUFACTURER'S
TRADEMARK
NOTE: UNCOATED PARTS HAVE NO PART MARKING.
MARKING IS ON LABEL ONLY.
PART
IDENTIFICATION
DATE CODE
(FIRST DIGIT =
LAST DIGIT OF YEAR;
SECOND DIGIT = MONTH,
AS FOLLOWS:
1-9 = JAN-SEPT
X,Y,Z = OCT-DEC)
BATCH/LOCATION
(3 DIGITS = BATCH CODE;
K = KOREA
S = CHINA)
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
Thermal Derating Chart - Ihold(Amps)
Ambient Operating Temperature
23
°
C
40
°
C
0.120
0.099
0.145
0.119
0.180
0.153
0.180
0.147
Model
-40
°
C
0.186
0.225
0.269
0.279
-20
°
C
0.165
0.199
0.240
0.247
0
°
C
0.143
0.172
0.211
0.213
50
°
C
0.088
0.106
0.138
0.131
60
°
C
0.077
0.093
0.123
0.115
70
°
C
0.066
0.080
0.109
0.099
85
°
C
0.050
0.060
0.087
0.074
MF-RX012/250
MF-RX014/250
MF-RX018/250
MF-RX018/250F
Itripis approximately two times Ihold.
Additional Features
■
Ability to withstand AC power cross conditions
■
Assists equipment with meeting ITU-T K.20/K.21/K.45
■
Assists equipment with meeting Telcordia GR-1089-C Intrabuilding
RX018F
5220S
MANUFACTURER'S
TRADEMARK
PART
IDENTIFICATION
DATE CODE
(FIRST DIGIT =
LAST DIGIT OF YEAR;
NEXT THREE DIGITS =
DAY OF YEAR)
MANUFACTURING
CODE
(S = CHINA)
MF-RX018/250F: