BOURNS MF-R250

Features
Applications
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Radial Leaded Devices
High ability to withstand lightning surges
Ideal lightning surge coordination device
Binned and sorted narrow resistance
ranges available
Lead free option available
■
Agency recognition:
■
■
■
■
■
■
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Customer Premise Equipment (CPE)
Central Office / Telecom Centers (CO)
Access equipment
T V Rheinland
MF-R/250 Series - Telecom PTC Resettable Fuses
Electrical Characteristics
Model
Max.
Operating
Voltage
Max.
Interrupt
Ratings
Volts
Amps
(Vrms)
(A)
Max.
Max.
Hold
Current
Amps
at
23 °C
IH
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
10.0
0.08
0.08
0.11
0.12
0.12
0.12
0.12
0.12
0.12
0.12
0.145
0.145
0.145
0.145
0.18
(Vdc)
MF-R008/250U
MF-R008/250
MF-R011/250U
MF-R012/250
MF-R012/250-A
MF-R012/250-C
MF-R012/250-F
MF-R012/250-1
MF-R012/250-2
MF-R012/250U
MF-R014/250
MF-R014/250-A
MF-R014/250-B
MF-R014/250U
MF-R018/250U
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
Initial
Resistance
Ohms
Ohms
at
at
23 °C
23 °C
Min.
Max.
14.0
15.0
5.0
4.0
7.0
5.5
6.0
6.0
8.0
6.0
3.0
3.0
4.5
3.5
0.8
One Hour
Post-Trip
Resistance
Ohms
at
23 °C
Max.
20.0
22.0
9.0
8.0
9.0
7.5
10.5
9.0
10.5
10.0
6.0
5.5
6.0
6.5
2.0
“U” suffix indicates product without insulation coating.
Environmental Characteristics
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 ........................................................MIL-STD-202F, Method 107G, ........................................±10 % typical resistance change
+125 °C to -55 °C,10 times
±15 % typical resistance change
Solvent Resistance ..................................................MIL-STD-202, Method 215B............................................No change
Lead Solderability ....................................................ANSI/J-STD-002 ..............................................................>95 % coverage
Flammability ............................................................IEC 695-2-2......................................................................No Flame for 60 secs.
Vibration ..................................................................MIL-STD-883C, Method 2007.1, Condition A..................±5 % typical resistance change
Test Procedures And Requirements For Model MF-R/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 ≤ R1max
Time to Trip ........................................................5 times Ihold, 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 110338
TÜV File Number ................................................R02057213
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
33.0
33.0
16.0
16.0
16.0
14.0
16.0
16.0
16.0
16.0
12.0
12.0
14.0
12.0
4.0
Additional Features
■
■
Assists equipment with meeting ITU-T K.20/K.21/K.45
Assists equipment with meeting Telcordia GR-1089-C Intrabuilding
MF-R/250 Series - Telecom PTC Resettable Fuses
Thermal Derating Chart - Ihold (Amps)
Ambient Operating Temperature
Model
-40 ˚C
0.124
0.171
0.186
0.255
0.269
MF-R008/250
MF-R011/250U
MF-R012/250
MF-R014/250
MF-R018/250U
-20 ˚C
0.110
0.151
0.165
0.199
0.240
0 ˚C
0.095
0.131
0.143
0.172
0.211
23 ˚C
0.080
0.110
0.120
0.145
0.180
40 ˚C
0.066
0.091
0.099
0.119
0.153
50 ˚C
0.059
0.081
0.088
0.106
0.138
60 ˚C
0.051
0.071
0.077
0.093
0.123
70 ˚C
0.044
0.061
0.066
0.080
0.109
85 ˚C
0.033
0.046
0.050
0.060
0.087
Itrip is approximately two times Ihold.
Product Dimensions
A
Max.
7.5
(0.295)
6.2
(0.244)
6.2
(0.244)
7.5
(0.295)
6.2
(0.244)
7.5
(0.295)
6.2
(0.244)
10.4
(0.409)
Model
MF-R008/250
MF-R008/250U
MF-R011/250U
MF-R012/250
MF-R012/250U
MF-R014/250
MF-R014/250U
MF-R018/250U
Packaging options:
BULK: 500 pcs. per bag.
B
Max.
11.5
(0.453)
11.5
(0.453)
11.5
(0.453)
11.5
(0.453)
11.5
(0.453)
11.5
(0.453)
11.5
(0.453)
12.6
(0.496)
C
Max.
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)
5.1 ± 0.7
(0.201 ± 0.028)
D
Min.
5.0
(0.197)
5.0
(0.197)
5.0
(0.197)
5.0
(0.197)
5.0
(0.197)
5.0
(0.197)
5.0
(0.197)
5.0
(0.197)
E
Max.
4.8
(0.189)
3.8
(0.150)
3.8
(0.150)
4.8
(0.189)
3.8
(0.150)
4.8
(0.189)
3.8
(0.150)
3.8
(0.150)
Physical Characteristics
Lead Dia.
Material
0.65
Sn/Cu
(0.026)
0.65
Sn/Cu
(0.026)
0.65
Sn/Cu
(0.026)
0.65
Sn/Cu
(0.026)
0.65
Sn/Cu
(0.026)
0.65
Sn/Cu
(0.026)
0.65
Sn/Cu
(0.026)
0.65
Sn/Cu
(0.026)
DIMENSIONS =
TAPE & REEL: 1500 pcs. per reel (not available with binned option).
A
E
MM
(INCHES)
Typical Part Marking
Represents total content. Layout may vary.
B
PART
IDENTIFICATION
DATE CODE
(FIRST DIGIT =
LAST DIGIT OF YEAR;
NEXT THREE DIGITS =
DAY OF YEAR)
D
MANUFACTURER'S
TRADEMARK
R012
0180T
COUNTRY OF
MANUFACTURE
(T = TAIWAN
S = CHINA)
C
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
MF-R/250 Series - Telecom PTC Resettable Fuses
How to Order
Typical Time to Trip at 23 ˚C
MF - R 012/250 U - A 05 - 2 - 99
1000
Multifuse®
Product
Designator
100
Hold Current, Ihold
008-018
(0.08 - 0.18 Amps)
Max. Interrupt Voltage, V
250 (250 Volts)
Telecom Options
U = Uncoated (radial parts only)
T = Pre-tripped
Resistance Sorted
Narrow resistance ranges
Resistance Bins of 0.5 ohms
05 = 0.5 ohms
Packaging Options
- 0 = Bulk Packaging
- 2 = Tape and Reel* (not available with binned
option)
Time to Trip (Seconds)
Series
R = Radial Leaded
Component
10
MF-R018/250U
1
MF-R014/250 & MF-R014/250U
MF-R012/250 & MF-R012/250U
0.10
MF-R011/250U
MF-R008/250 & MF-R008/250U
0.01
0
0.2 0.4
0.6
*Packaged per EIA486-B
0.8
1.0
1.2
1.4
1.6
1.8
2.0 2.2
2.4
2.6
2.8 3.0
Fault Current (Amps)
Lead Free Option
__ = Standard Product
- 99 = Lead Free
Resistance Options
Model
MF-R012/250
MF-R012/250-A05
MF-R012/250-C05
MF-R012/250-F05
MF-R012/250-105
MF-R012/250-205
MF-R012/250U
MF-R014/250
MF-R014/250-A05
MF-R014/250-B05
MF-R014/250U
MF-R/250, REV. E, 02/04
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
Rmin.
4.0
7.0
5.5
6.0
6.0
8.0
6.0
3.0
3.0
4.5
3.5
Rmax.
8.0
9.0
7.5
10.5
9.0
10.5
10.0
6.0
5.5
6.0
6.5
R1Max.
16.0
16.0
14.0
16.0
16.0
16.0
16.0
12.0
12.0
12.0
12.0
Bin
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
MF-R, MF-RX, MF-R/90, MF-R/250, MF-RX/250 & MF-R/600 Series
Tape and Reel Specifications
Devices taped using EIA468–B/IEC286-2 standards. See table below and Figures 1 and 2 for details.
Dimension Description
IEC
Mark
EIA
Mark
Carrier tape width
W
W
Hold down tape width: MF-R/600
W4
Hold down tape width: all others
W4
Hold down tape
W0
Top distance between tape edges
W2
Dimensions
Dimensions
Tolerance
18
(.709)
5
(.197)
11
(.433)
Lead protrusion
I1
Protrusion of cutout
L
L
Protrusion beyond hold tape
I2
I2
Not specified
Sprocket hole pitch
P0
P0
12.7
(0.5)
W6
Sprocket hole position
W1
W5
Sprocket hole diameter
D0
D0
Abscissa to plane (straight lead)
H
H
Abscissa to plane (kinked lead)
H0
H0
Abscissa to top
H1
H1
Overall width w/lead protrusion
C1
Overall width w/o lead protrusion
C2
L1
Pitch tolerance
20 consecutive
Device pitch: MF-R005 – MF-R160 & MF-R/90
Device pitch: MF-R185 – MF-R400 & MF-R/600
Device pitch: MF-RX110 – MF-RX160
Device pitch: MF-RX185 – MF-RX375
Device pitch: MF-R/250 & MF-RX/250
t
t
t1
Tape thickness with splice
Splice sprocket hole alignment
12.7
(0.5)
25.4
(1.0)
12.7
(0.5)
12.7
(0.5)
12.7
(0.5)
0.9
(.035)
2.0
(.079)
0
Body lateral deviation
∆h
∆h
Body tape plane deviation
∆p
∆p
0
3.81
(.015)
Lead seating plane deviation: MF-R/600*
∆P1
P1
Lead seating plane deviation
∆P1
P1
Lead spacing
F
F
Reel width
w
w
Reel diameter
d
a
Space between flanges less device
*Differs from EIA specification.
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
min.
ref.
No protrusion
3
(.118)
9
(.354)
4
(.157)
18.5
(.728)
16
(.63)
32.2
(1.268)
43.2
(1.7)
42.5
(1.673)
1.0
(.039)
11
(.433)
Tape thickness
-0.5/+1.0
(-0.02/+.039)
0
0
5.08
(0.2)
56
(2.205)
370
(14.57)
4.75
(.187)
max.
-0.5/+0.75
(-0.02/+0.03)
±0.2
(±.0078)
±3.0
(±.118)
±0.5
(±.02)
max.
max.
max.
max.
max.
±0.3
(±.012)
±1
max.
max.
±0.3
(±.012)
±1.0
(±.039)
±1.3
(±.051)
±0.7
(±.028)
±0.7
(±.028)
±0.8
(±.035)
max.
max.
±3.25
(±.128)
DIMENSIONS =
MM
(INCHES)
MF-R, MF-RX, MF-R/90, MF-R/250, MF-RX/250 & MF-R/600 Series
Tape and Reel Specifications
IEC
Mark
Dimension Description
EIA
Mark
Dimensions
Dimensions
Tolerance
Space between flanges less device
Arbor hole diameter
f
c
Core diameter: MF-R, MF-RX, MF-R/90 & MF-R/250
h
n
Core diameter: MF-RX/250 & MF-R/600
h
n
4.75
(.187)
26
(1.024)
±3.25
(±.128)
±12.0
(±.472)
80
(3.15)
max.
91
(3.58)
372
(14.6)
372
(14.6)
372
(14.6)
56
(2.2)
67
(2.64)
64
(2.52)
Box: MF-R, MF-RX, MF-R/90 & MF-R/250
Box: MF-RX/250
Box: MF-R/600
max.
372
(14.6)
362
(14.25)
362
(14.25)
max.
max.
max.
Consecutive missing places:
MF-R, MF-RX, MF-R/90 & MF-R/250
3
Consecutive missing places: MF-RX/250 & MF-R/600
max.
None
Empty places per reel:
MF-R, MF-RX, MF-R/90 & MF-R/250
Not specified
Empty places per reel: MF-RX/250 & MF-R/600
0.1 %
Taped Component Dimensions - Figure 1
∆p
∆h
∆h
∆p
Reference plane
P1
H1
A
L
I2
H1
F
H
H0
B
W0
I1
P0
D0
DIMENSIONS =
MM
(INCHES)
W1
W
User direction of feed
Cross section A - B
Reel Dimensions - Figure 2
t
Reel
h
d
User
direction
of
feed
Upper side
Tape
Lower side
f
h
w
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.