Thermal Shock ..................................................... +125 °C to -55 °C,10 times ................................... ±15 % typical resistance change
Solvent Resistance ............................................... MIL-STD-202, Method 215B ................................. No change
Lead Solerability ................................................... ANSI/J-STD-002 ................................................... >95 % coverage
Test Procedures And Requirements For Model MF-RX/250 Series
Test
Test Conditions
Accept/Reject Criteria
Visual/Mech. .................................................... Verify dimensions and materials .......................Per MF physical description
Resistance ....................................................... In still air @ 23 °C .............................................Rmin
≤
R
≤
Rmax
Time to Trip ...................................................... TTT current, Vmax, 23 °C .................................T
≤
max. time to trip (seconds)
Hold Current .................................................... 30 min. at Ihold .................................................No trip
Trip Cycle Life .................................................. 250 Vrms, 3A, 10 cycles ...................................No arcing or burning
UL File Number ............................................... E174545
TÜV File Number ............................................. 50260658
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.
Additional Features
n
Ability to withstand AC power cross conditions
n
Assists equipment with meeting ITU-T K.20/K.21/K.45
n
Assists equipment with meeting Telcordia GR-1089-C Intrabuilding
MF-RX/250 Series - Telecom PTC Resettable Fuses
Thermal Derating Chart - Ihold (Amps)
Model
Ambient Operating Temperature
-40 ºC
0.186
0.225
0.269
-20 ºC
0.165
0.199
0.240
0 ºC
0.143
0.172
0.211
23 ºC
0.120
0.145
0.180
40 ºC
0.099
0.119
0.153
50 ºC
0.088
0.106
0.138
60 ºC
0.077
0.093
0.123
70 ºC
0.066
0.080
0.109
85 ºC
0.050
0.060
0.087
MF-RX012/250
MF-RX014/250
MF-RX018/250
Itrip is approximately two times Ihold.
Product Dimensions
Model
MF-RX012/250
MF-RX012/250U
MF-RX014/250
MF-RX014/250U
MF-RX018/250
MF-RX018/250U
A
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)
B
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)
C
Nom.
5.1 ± 0.7
(0.201 ± 0.028)
5.1 ± 0.7
(0.201 ± 0.028)
Style 1
5.1 ± 0.7
A
(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)
D
Min.
4.7
(0.185)
4.7
(0.185)
4.7
(0.185)
E
4.7
(0.185)
4.7
(0.185)
4.7
(0.185)
E
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)
Physical Characteristics
Lead Dia.
Style
Material
0.65
1
Sn/Cu
(0.026)
0.65
2
Sn/Cu
(0.026)
Style 2
0.65
1
Sn/Cu
A
(0.026)
E
0.65
2
Sn/Cu
(0.026)
0.65
1
B
Sn/Cu
(0.026)
0.65
2
Sn/Cu
(0.026)
DIMENSIONS:
MM
(INCHES)
B
Packaging options: BULK: 500 pcs. per bag.
TAPE & REEL: 1500 pcs. per reel (available binned).
D
C
D
C
Style 1
1
Style
A
E
Style 2
Style
Style 3 2
AA
E
E
Typical Part Marking
Style 4
Represents total content. Layout may vary.
MANUFACTURER'S
TRADEMARK
RX012
0 220 S
PART
B
IDENTIFICATION
LOCATION CODE:
S = CHINA
A
E
B
B
B
YEAR CODE
DATE CODE
D
C
D
D
Style 4
C
A
C
D
E
C
Style 3
A
E
B
B
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
C
C
D
D
Users should verify actual device performance in their specific applications.
MF-RX/250 Series - Telecom PTC Resettable Fuses
How to Order
Typical Time to Trip at 23 ˚C
100
MF - RX 012/250 U - A 5 - 2
Multifuse
®
Product
Designator
Time to Trip (Seconds)
Series
RX = Radial Leaded
Component
10
Hold Current, Ihold
008-018 (0.08-0.18 Amps)
Max. Interrupt Voltage, V
250 (250 Volts)
1
MF-RX018/250, MF-RX018/250U
Resistance Sorted
Narrow resistance ranges - see
Resistance Options chart
Telecom Options
U = Uncoated (radial parts only)
0.10
MF-RX014/250 & MF-RX014/250U
MF-RX012/250 & MF-RX012/250U
*Packaged per EIA486-B
Packaging Options
- 0 = Bulk Packaging
- 2 = Tape and Reel* (available with binned
option)
Resistance Bins of 0.5 ohms
05 = 0.5 ohm binned parts (epoxy coated)
5 = 0.5 ohm binned parts (uncoated)
0.01
0
0.5
1.0
1.5
2.0
2.5
3.0
Fault Current (Amps)
Resistance Options
Initial Resistance
Values
Ohms @ 23 ° C
Min.
Max.
4.0
8.0
7.0
5.5
6.0
9.0
7.5
10.5
R1max
Ohms @ 23 ° C
Max.
16.0
16.0
14.0
16.0
Model
MF-RX012/250
Bin
N/A
0.5
0.5
0.5
MF-RX012/250U
MF-RX014/250
MF-RX014/250-A05
MF-RX014/250-B05
MF-RX014/250U
MF-RX012/250-105
MF-RX012/250-205
MF-RX012/250-T05
MF-RX012/250-A05
MF-RX012/250-C05
MF-RX012/250-F05
6.0
3.0
3.0
4.5
3.5
6.0
8.0
7.0
9.0
10.5
12.0
10.0
6.0
5.5
6.0
6.5
16.0
16.0
16.0
16.0
14.0
12.0
14.0
12.0
N/A
N/A
0.5
0.5
N/A
0.5
0.5
0.5
MF-RX/250, REV. N 06/17
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.
MF-RX/250 Series Tape and Reel Specifications
IEC
Mark
W
W0
EIA
Mark
W
W4
Dimensions
Dimensions
Tolerance
18
-0.5/+1.0
(.709)
(-0.02/+.039)
11
min.
(.433)
3
(.118)
9
(.354)
4
(.157)
18.5
(.728)
16
(.63)
38.0
(1.496)
32.2
(1.268)
55.0
(2.165)
43.2
(1.7)
54.0
(2.126)
42.5
(1.673))
11
(.433)
12.7
(0.5)
20 consecutive
12.7
(0.5)
0.9
(.035)
1.5
(.059)
0
Δ
h
Δ
p
F
w
d
W1
f
h
Δ
h
Δ
p
F
W2
a
h
c
n
0
0
5.08
(0.2)
56.0
(2.205)
370.0
(14.57)
4.75
(.187)
26.0
(1.024)
91
(3.58)
67
372
362
(2.64) (14.6) (14.25)
none
0.1 %
max.
-0.5/+0.75
(-0.02/+0.03)
±0.2
(±.0078)
±3.0
(±.118)
±0.5
(±.02)
max.
max.
max.
max.
max.
max.
max.
±0.3
(±.012)
±1
(±.039)
±0.3
(±.012)
max.
max.
±0.3
(±.012)
±1.0
(±.039)
±1.3
(±.051)
-0.5/+0.6
(-.020/+.024)
max.
max.
±3.25
(±.128)
±12.0
(±.472)
max.
max.
Devices taped using EIA468–B/IEC286-2 standards. See table below and Figures 1 through 4 for details.
Dimension Description
Carrier tape width
Hold down tape width
Hold down tape
Top distance between tape edges
Sprocket hole position
Sprocket hole diameter
Abscissa to plane (straight lead)
Abscissa to plane (kinked lead)
Abscissa to top (straight lead)
Abscissa to top (kinked lead)
Overall width w/lead protrusion (straight lead)
Overall width w/lead protrusion (kinked lead)
Overall width w/o lead protrusion (straight lead)
Overall width w/o lead protrusion (kinked lead)
Protrusion of cutout
Sprocket hole pitch
Pitch tolerance
Device pitch
Tape thickness
Tape thickness with splice
Splice sprocket hole alignment
Body lateral deviation
Body tape plane deviation
Lead spacing
Reel width
Reel diameter
Space between flanges less device
Arbor hole diameter
Core diameter
Box
Consecutive missing places
Empty places per reel
t
t
t1
L
P0
W2
W1
D0
H
H0
H1
H1
W6
W5
D0
H
H0
H1
H1
C1
C1
C2
C2
L
P0
No protrusion
DIMENSIONS:
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.
MM
(INCHES)
MF-RX/250 Series Tape and Reel Specifications
Reference plane
h
h
H
1
L
P
1
F
A
B
H
0
W
0
W
1
W
H
1
H
User direction of feed
W
Cross section A - B
p
H
H
1
h
h
p
p
Taped Component Dimensions -
Figure 1
Applies to Models:
p
MF-RX012/250U
MF-RX014/250U
MF-RX018/250
MF-RX018/250U
H
1
I
2
L
I
1
P
1
P
0
Reference plane
F
A
B
W
0
D
H
0 0
W
1
P
0
D
0
t
User direction of feed
Cross section A - B
t
Reel Dimensions -
Figure 2
Applies to Models:
h
d
f
User
direction
of
feed
User
direction
of
feed
Reel
Upper side
Tape
MF-RX012/250U
MF-RX014/250U
MF-RX018/250
MF-RX018/250U
h
w
f
Reel
Lower side
Upper side
Tape
h
d
Lower side
h
w
DIMENSIONS:
MM
(INCHES)
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.
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