*RoHS Directive 2002/95/EC Jan 27 2003 including Annex
Specifications are subject to change without notice.
R X 01224001K
Operating/Storage Temperature ..............................-40 °C to +85 °C Maximum Device Surface Temperature
in Tripped State......................................................125 °C
Passive Aging ..........................................................+85 °C, 1000 hours ........................................................±15 % typical resistance change
+60°C, 1000 hours ±15 % typical resistance change
Humidity Aging ........................................................+85 °C, 85 % R.H. 500 hours ..........................................±15 % typical resistance change Thermal Shock https://www.wendangku.net/doc/2116451161.html,-STD-202F , Method 107G,........................................±10 % typical resistance change
+125 °C to -55 °C,10 times ±15 % typical resistance change
Solvent Resistance https://www.wendangku.net/doc/2116451161.html,-STD-202, Method 215B............................................No change
Lead Solerability ......................................................ANSI/J-STD-002..............................................................>95 % coverage
Flammability ............................................................IEC 695-2-2......................................................................No Flame for 60 secs.
Vibration https://www.wendangku.net/doc/2116451161.html,-STD-883C, Method 2007.1, Condition A..................±5 % typical resistance change
Environmental Characteristics
Test Test Conditions Accept/Reject Criteria Visual/Mech.......................................................Verify dimensions and materials..................Per MF physical description Resistance..........................................................In still air @ 23 °C ........................................Rmin ≤R ≤R1max
Time to Trip ........................................................At specified current, Vmax, 23 °C ..............T ≤typical time to trip (seconds)Hold Current ......................................................30 min. at Ihold............................................No trip
Trip Cycle Life ....................................................Vmax, Imax, 100 cycles ..............................No arcing or burning Trip Endurance....................................................Vmax, 48 hours ..........................................No arcing or burning UL File Number ..................................................E 174545S CSA File Number................................................CA 110338TüV File Number ................................................R02057213
Test Procedures And Requirements For Model MF-RX/250 Series
Max.One Hour Max.Interrupt Hold Initial Post-Trip Operating Ratings Current Resistance Resistance Model
Voltage Volts Amps Amps Ohms Ohms Ohms (Vrms)(A)at at at at (Vdc)
23 °C 23 °C 23 °C 23 °C Max.
Max.I H Min.Max.Max.
MF-RX012/250
60250 3.00.12 4.08.016.0MF-RX012/250-A 60250 3.00.127.09.016.0MF-RX012/250-C 60250 3.00.12 5.57.514.0MF-RX012/250-F 60250 3.00.12 6.010.516.0MF-RX012/250-160250 3.00.12 6.09.016.0MF-RX012/250-260250 3.00.128.010.516.0MF-RX012/250-T 60250 3.00.127.012.016.0MF-RX012/250U 60250 3.00.12 6.010.016.0MF-RX014/25060250 3.00.145 3.0 6.014.0MF-RX014/250-A 60250 3.00.145 3.0 5.512.0MF-RX014/250-B 60250 3.00.145 4.5 6.014.0MF-RX014/250-T 60250 3.00.145 5.47.514.0MF-RX014/250U 60250 3.00.145 3.5 6.512.0MF-RX018/2506025010.00.180.8 2.0 4.0MF-RX018/250F 10025010.00.180.8 2.2 4.0MF-RX018/250U
60
250
10.0
0.18
0.8
2.0
4.0
“U” suffix indicates product without insulation coating.*R
o H
S
C O
M
P L
I A
N T
A B C D E Physical Characteristics Model
Max.Max.Nom.Min.Max.Lead Dia.Style Material
MF-RX012/250
6.511.0 5.1 ±0.7 4.7 4.60.65
1Sn/Cu (0.256)(0.433)(0.201 ±0.028)(0.185)(0.181)(0.026)
MF-RX012/250U
6.010.0 5.1 ±0.7 4.7 3.80.65
1Sn/Cu (0.236)(0.394)(0.201 ±0.028)(0.185)(0.150)(0.026)
MF-RX014/250
6.511.0 5.1 ±0.7 4.7 4.60.65
1Sn/Cu (0.256)(0.433)(0.201 ±
0.028)(0.185)(0.181)(0.026)
MF-RX014/250U
6.010.0 5.1 ±0.7 4.7 3.80.65
1Sn/Cu
(0.236)(0.394)(0.201 ±0.028)(0.185)(0.150)
(0.026)
MF-RX018/250
11.013.6 5.1 ±0.7 4.7 4.60.65
1Sn/Cu
(0.433)(0.535)(0.201 ±0.028)(0.185)(0.181)(0.026)
MF-RX018/250U
10.412.6 5.1 ±0.7 4.7 3.80.65
1
Sn/Cu
(0.409)(0.496)(0.201 ±0.028)(0.185)(0.150)(0.026)
MF-RX018/250F
9.012.5 5.1 ±0.7 4.7 3.80.65
2Sn/Cu
(0.354)(0.492)(0.201 ±0.028)(0.185)(0.150)(0.026)
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 =
Style 1Style 2T ypical Part Marking
Represents total content. Layout may vary.
MF-RX012/250 ~ MF-RX018/250:
NOTE: UNCOATED PARTS HAVE NO PART MARKING.
MARKING IS ON LABEL ONLY.
X,Y,Z = OCT-DEC)
Specifications are subject to change without notice.
Thermal Derating Chart - I hold(Amps)
Ambient Operating Temperature
Model
-40 °C-20°C0 °C23 °C40 °C50 °C60 °C70 °C85 °C MF-RX012/2500.1860.1650.1430.1200.0990.0880.0770.0660.050 MF-RX014/2500.2250.1990.1720.1450.1190.1060.0930.0800.060 MF-RX018/2500.2690.2400.2110.1800.1530.1380.1230.1090.087 MF-RX018/250F0.2790.2470.2130.1800.1470.1310.1150.0990.074
I trip is approximately two times I hold.
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
MANUFACTURER'S
DAY OF YEAR)
MF-RX018/250F:
MF-RX/250 Series - Telecom PTC Resettable Fuses
How to Order
MF - RX 012/250 U - A 5 - 2 Multifuse?
Product
Designator
Series
RX =Radial Leaded
Component
Hold Current, Ihold
008-018 (0.08-0.18 Amps)
Max. Interrupt Voltage, V
250 (250 Volts)
Telecom Options
F =Round Version (MF-RX018/250F only)
U =Uncoated (radial parts only)
Resistance Sorted
Narrow resistance ranges -
see Resistance Options chart
Resistance Bins of 0.5 ohms
05 =0.5 ohm binned parts (epoxy coated)
5 =0.5 ohm binned parts (uncoated)
Packaging Options
- 0 =Bulk Packaging
- 2 =Tape and Reel* (available with binned
option)
*Packaged per EIA486-B Typical Time to Trip at 23 °C
1000
100
10
1
0.10
0.01
Fault Current (Amps)
T
i
m
e
t
o
T
r
i
p
(
S
e
c
o
n
d
s
)
0.20.40.60.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0
MF-RX018/250, MF-RX018/250F,
MF-RX018/250U
MF-RX012/250 & MF-RX012/250U
MF-RX014/250 & MF-RX014/250U
MF-RX/250, REV. F, 02/06
Initial
Resistance Values
R1max Bin
Ohms @ 23 °C Ohms @ 23 °C
Model Min.Max.Max.
MF-RX012/250 4.08.016.00.5
MF-RX012/250-A057.09.016.00.5
MF-RX012/250-C05 5.57.514.00.5
MF-RX012/250-F05 6.010.516.00.5
MF-RX012/250-105 6.09.016.00.5
MF-RX012/250-2058.010.516.00.5
MF-RX012/250-T057.012.016.00.5
MF-RX012/250U 6.010.016.00.5
MF-RX014/250 3.0 6.014.00.5
MF-RX014/250-A05 3.0 5.512.00.5
MF-RX014/250-B05 4.5 6.014.00.5
MF-RX014/250U 3.5 6.512.00.5
MF-RX018/250-F050.8 2.2 4.00.5 Resistance Options
Specifications are subject to change without notice.
Specifications are subject to change without notice.
Devices taped using EIA468–B/IEC286-2 standards. See table below and Figures 1 and 2 for details.
IEC EIA Dimensions
Dimension Description Mark Mark Dimensions Tolerance
Carrier tape width W W Hold down tape width: W 0W 4min.
Hold down tape
No protrusion
Top distance between tape edges W 2W 6max.
Sprocket hole position W 1W 5Sprocket hole diameter D 0D 0Abscissa to plane (straight lead)H H Abscissa to plane (kinked lead)H 0H 0Abscissa to top (straight lead)H 1H 1max.Abscissa to top (kinked lead)
H 1
H 1max.Overall width w/lead protrusion (straight lead)C 1max.Overall width w/lead protrusion (kinked lead)C 1max.Overall width w/o lead protrusion (straight lead)C 2max.Overall width w/o lead protrusion (kinked lead)C 2
max.Lead protrusion I 1L 1max.Protrusion of cutout L L max.
Protrusion beyond hold tape I 2I 2Not specified
Sprocket hole pitch P 0
P 0
Pitch tolerance
20 consecutive
Device pitch: MF-R005–MF-R160, MF-R/90,
MF-RX110/72–MF-RX185/72, MF-R/72
Device pitch: MF-R185–MF-R400,MF-RX110–MF-RX375
MF-R/600, MF-RX250/72–MF-RX375/72
Tape thickness
t t max.Tape thickness with splice: MF-R010–MF-R160,
t 1max.MF-R/72, MF-RX110/72–MF-RX185/72,
Tape thickness with splice: MF-R250–MF-R1100
MF-RX110–MF-RX375, MF-R/90, MF-RX250/72–MF-RX375/72
t 1
max.
Splice sprocket hole alignment 0Body lateral deviation ?h ?h 0Body tape plane deviation ?p ?p 0
Lead spacing F F Reel width w W 2max.Reel diameter
d a max.
Space between flanges less device
W 1
h
MF-R, MF-R/72, MF-R/90, MF-R/600, MF-RX, MF-RX/72 & MF-RX/250 Series Tape and Reel Specifications
18
(.709)-0.5/+1.0(-0.02/+.039)
9(.354)-0.5/+0.75(-0.02/+0.03)
4(.157)±0.2(±.0078)18.5(.728)±3.0(±.118)16(.63)32.2(1.268)38.0(1.496)43.2(1.7)55.0(2.165)42.5(1.673)54.0(2.126)1.0(.039)11(.433)
±0.5(±.02)
12.7(0.5)
12.7(0.5)25.4(1.0)
0.9(.035)1.5(.059)2.3(.091)
5.08(0.2)56(2.205)370(14.57)±0.3(±.012)±1(±.039)±0.3(±.012)±0.6(±.024)
±0.3(±.012)±1.0(±.039)±1.3(±.051)±0.2(±.008)
4.75(.187)
±3.25(±.128)
11(.433)
3(.118)DIMENSIONS =
MM (INCHES)
MF-R, MF-R/72, MF-R/90, MF-R/600, MF-RX, MF-RX/72 & MF-RX/250 Series Tape and Reel Specifications
Specifications are subject to change without notice.
IEC EIA Dimensions
Dimension Description Mark Mark Dimensions Tolerance
Arbor hole diameter
f c Core diameter: MF-R, MF-RX, MF-R/90
h
n
max.
Core diameter: MF-RX/250, MF-R/600h n
max.Box: MF-R, MF-RX, MF-R/90 max.Box: MF-RX/250 max.Box: MF-R/600
max.Consecutive missing places: MF-R, MF-RX, MF-R/90 3 max.
Consecutive missing places: MF-RX/250, MF-R/600none Empty places per reel: MF-R, MF-RX, MF-R/90Not specified
Empty places per reel: MF-RX/250, MF-R/600
0.1 %
26
(1.024)80(3.15)
56(2.2)372(14.6)372(14.6)±12.0(±.472)
91(3.58)(2.64)(14.6)(14.25)64(2.52)
372(14.6)
362(14.25)