BOURNS MF

IA
NT
Features
*R
oH
S
CO
M
PL
■
■
RX
1
018 10
0T
The MF-RX Series is currently
available, although not recommended
for new designs. The higher voltage
rated MF-RX/72 Series is preferred.
Radial Leaded Devices
Cured, flame retardant epoxy polymer
insulating material meets
UL 94V-0 requirements
■
Agency recognition:
■
RoHS compliant*
T V Rheinland
MF-RX Series - PTC Resettable Fuses
Electrical Characteristics
Initial
Resistance
1 Hour (R1)
Post-Trip
Resistance
Amperes
at 23 °C
Hold
Trip
Ohms
at 23 °C
Min.
Max.
Ohms
at 23 °C
Max.
1.10
1.35
1.60
1.85
2.50
3.00
3.75
0.15
0.12
0.09
0.08
0.05
0.04
0.03
Ihold
Model
MF-RX110
MF-RX135
MF-RX160
MF-RX185
MF-RX250
MF-RX300
MF-RX375
V max.
Volts
I max.
Amps
60
60
60
60
60
60
60
40
40
40
40
40
40
40
Itrip
2.20
2.70
3.20
3.70
5.00
6.00
7.50
0.25
0.19
0.14
0.12
0.08
0.06
0.05
0.38
0.30
0.22
0.19
0.13
0.10
0.08
Max. Time
To Trip
Amperes
at 23 °C
Tripped
Power
Dissipation
Seconds
at 23 °C
Watts
at 23 °C
Typ.
8.2
9.6
11.4
12.6
15.6
19.8
24.0
1.50
1.70
1.90
2.10
2.50
2.80
3.20
5.5
6.75
8.0
9.25
12.5
15.0
18.75
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 ....................................±5 % typical resistance change
Humidity Aging....................................................+85 °C, 85 % R.H. 1000 hours....................±5 % typical resistance change
Thermal Shock ....................................................-40 °C to +85 °C,10 times ..........................±10 % typical resistance change
Solvent Resistance ............................................MIL-STD-202, Method 215 ........................No change
Vibration ..............................................................MIL-STD-883C, Method 2007.1, ................No change
Condition A
Test Procedures And Requirements For Model MF-RX 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 ........................................................5 times Ihold, Vmax, 23 °C..........................T ≤ max. 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 ................................................R2057213
Thermal Derating Chart - Ihold / Itrip (Amps)
Ambient Operating Temperature
Model
MF-RX110
MF-RX135
MF-RX160
MF-RX185
MF-RX250
MF-RX300
MF-RX375
-40 °C
1.71 / 3.42
2.09 / 4.18
2.48 / 4.96
2.87 / 5.74
3.88 / 7.76
4.65 / 9.30
5.81 / 11.6
-20 °C
1.50 / 3.00
1.84 / 3.68
2.18 / 4.36
2.52 / 5.04
3.40 / 6.80
4.08 / 8.16
5.10 / 10.2
0 °C
1.31 / 2.62
1.61 / 3.22
1.90 / 3.80
2.20 / 4.40
2.98 / 5.96
3.57 / 7.14
4.46 / 8.92
23 °C
1.10 / 2.20
1.35 / 2.70
1.60 / 3.20
1.85 / 3.70
2.50 / 5.00
3.00 / 6.00
3.75 / 7.50
40 °C
0.89 / 1.78
1.09 / 2.18
1.30 / 2.60
1.50 / 3.00
2.03 / 4.06
2.43 / 4.86
3.04 / 6.08
50 °C
0.79 / 1.58
0.97 / 1.94
1.15 / 2.30
1.33 / 2.66
1.80 / 3.60
2.16 / 4.32
2.70 / 5.40
60 °C
0.69 / 1.38
0.85 / 1.70
1.01 / 2.02
1.17 / 2.34
1.58 / 3.16
1.89 / 3.78
2.36 / 4.72
70 °C
0.59 / 1.18
0.73 / 1.46
0.86 / 1.72
1.00 / 2.00
1.35 / 2.70
1.62 / 3.24
2.03 / 4.06
85 °C
0.44 / 0.88
0.54 / 1.08
0.64 / 1.28
0.74 / 1.48
1.00 / 2.00
1.20 / 2.40
1.50 / 3.00
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex.
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
Additional Features
■
■
■
Applications
Bulk packaging, tape and reel and AmmoPak available on most models
Resettable circuit protection
Patents pending
Almost anywhere there is a low voltage
power supply, up to 60 V and a load to be
protected, including:
■ Security and fire alarm systems
■ Loud speakers
■ Power transformers
MF-RX Series - PTC Resettable Fuses
Product Dimensions
A
Max.
13.0
(0.512)
14.5
(0.571)
16.3
(0.642)
17.8
(0.701)
21.3
(0.839)
24.9
(0.980)
28.4
(1.118)
Model
MF-RX110
MF-RX135
MF-RX160
MF-RX185
MF-RX250
MF-RX300
MF-RX375
B
Max.
18.0
(0.709)
19.6
(0.772)
21.3
(0.839)
22.9
(0.902)
26.4
(1.039)
30.0
(1.181)
33.5
(1.319)
C
Nom.
5.1
(0.201)
5.1
(0.201)
5.1
(0.201)
5.1
(0.201)
10.2
(0.402)
10.2
(0.402)
10.2
(0.402)
Tol. ±
0.7
(0.028)
0.7
(0.028)
0.7
(0.028)
0.7
(0.028)
0.7
(0.028)
0.7
(0.028)
0.7
(0.028)
D
Min.
7.6
(0.299)
7.6
(0.299)
7.6
(0.299)
7.6
(0.299)
7.6
(0.299)
7.6
(0.299)
7.6
(0.299)
E
Max.
3.1
(0.122)
3.1
(0.122)
3.1
(0.122)
3.1
(0.122)
3.1
(0.122)
3.1
(0.122)
3.1
(0.122)
Physical Characteristics
Style
Lead Dia.
Material
0.81
1
Sn/Cu
(0.032)
0.81
1
Sn/Cu
(0.032)
0.81
1
Sn/Cu
(0.032)
0.81
1
Sn/Cu
(0.032)
0.81
1
Sn/Cu
(0.032)
0.81
1
Sn/Cu
(0.032)
0.81
1
Sn/Cu
(0.032)
Packaging options:
BULK: All models = 500 pcs. per bag.
TAPE & REEL: MF-RX110 – MF-RX160 = 1500 pcs. per reel; MF-RX185 – MF-RX375 = 1000 pcs. per reel
AMMO-PACK: MF-RX110 – MF-RX160 = 1000 pcs. per reel; MF-RX185 – MF-RX375 = 500 pcs. per reel
A
0.81 (20AWG)
DIMENSIONS =
MM
(INCHES)
E
How to Order
Typical Time to Trip at 23 ßC
D
C
NOTE: Kinked lead option is available for
board standoff. Contact factory for
details.
- AP = Ammo-Pak*
Typical Part Marking
Represents total content. Layout may vary.
PART
IDENTIFICATION
DATE CODE
(FIRST DIGIT =
LAST DIGIT OF YEAR;
NEXT THREE DIGITS =
DAY OF YEAR)
MANUFACTURER'S
TRADEMARK
RX110
0180T
- 2 = Tape and Reel without part number
suffix option*
- 2-99 = Tape and Reel with part number
suffix option
LOT NO.
(T = TAIWAN
S = CHINA)
- 0-14 = Kinked leads where straight leads are
standard
- 0-17 = Straight leads where kinked leads are
standard
1000
100
Time to Trip (Seconds)
Multifuse®
Product Designator
Series
RX = Radial Leaded Component
Hold Current, Ihold
110-375 (1.10 Amps - 3.75 Amps)
Packaging Options
- __ = Bulk Packaging without part number
suffix option
- 0-99 = Bulk Packaging with part number
suffix option
B
MF
-R
MF X110
-R
MF X135
-R
MF X160
-R
MF X185
-R
MF X250
-R
MF X300
-RX
375
MF - RX 110 - 0 - 99
10
1
0.1
Part Number Suffix Option
- 99 = As of date code April 1, 2005 all MF-RX
models are RoHS compliant. The suffix “-99”
can be used if a new part number is required
to reference the RoHS compliance.
0.01
Examples:
MF-RX110 ..........................................Bulk packaging
0.001
MF-RX110-0-99 ....Bulk packaging with part
number suffix option
MF-RX110-2 ..........Tape and reel packaging
MF-RX110-2-99 ....Tape and reel packaging
with part number suffix
option
1
10
100
Fault Current (Amps)
*Packaged per EIA486-B
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
MF-RX SERIES, REV. L, 02/06
MF-R, MF-RX, MF-R/90, MF-RX/72 & MF-RX/250 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: all others
W0
W4
Hold down tape
Top distance between tape edges
Dimensions
Dimensions
Tolerance
18
(.709)
11
(.433)
min.
No protrusion
W2
W6
Sprocket hole position
W1
Sprocket hole diameter
D0
D0
Abscissa to plane (straight lead)
H
H
Abscissa to plane (kinked lead)
H0
H0
Abscissa to top (straight lead)
H1
H1
Abscissa to top (kinked lead)
W5
H1
H1
Overall width w/lead protrusion (straight lead)
C1
Overall width w/lead protrusion (kinked lead)
C1
Overall width w/o lead protrusion (straight lead)
C2
Overall width w/o lead protrusion (kinked lead)
C2
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)
1.0
(.039)
11
(.433)
Lead protrusion
I1
L1
Protrusion of cutout
L
L
Protrusion beyond hold tape
I2
I2
Not specified
Sprocket hole pitch
P0
P0
12.7
(0.5)
Pitch tolerance
20 consecutive
Device pitch: MF-R005–MF-R160, MF-R/90 & MF-RX/72
12.7
(0.5)
Device pitch: MF-R185–MF-R400,
MF-RX110–MF-RX375
25.4
(1.0)
Tape thickness
-0.5/+1.0
(-0.02/+.039)
t
Tape thickness with splice: MF-R010–MF-R160
Tape thickness with splice: MF-R250–MF-R1100
MF-RX110–MF-RX375 & MF-R/90
t
t1
t1
Splice sprocket hole alignment
0.9
(.035)
1.5
(.059)
2.3
(.091)
0
Body lateral deviation
∆h
∆h
Body tape plane deviation
∆p
∆p
Lead spacing
F
F
Reel width
w
W2
Reel diameter
d
a
Space between flanges less device
W1
h
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.
max.
max.
max.
±0.3
(±.012)
±1
max.
max.
max.
±0.3
(±.012)
±1.0
(±.039)
±0.3
(±.021)
±0.2
(±.008)
max.
max.
±3.25
(±.128)
DIMENSIONS =
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
MM
(INCHES)
MF-R, MF-RX, MF-R/90, MF-RX/72 & MF-RX/250 Series
Tape and Reel Specifications
IEC
Mark
Dimension Description
EIA
Mark
Dimensions
Dimensions
Tolerance
Arbor hole diameter
f
c
26
(1.024)
±12.0
(±.472)
Core diameter: MF-R, MF-RX, MF-R/90
h
n
80
(3.15)
max.
56
(2.2)
Box: MF-R, MF-RX, MF-R/90
372
(14.6)
372
(14.6)
max.
Consecutive missing places:
MF-R, MF-RX, MF-R/90
3
Empty places per reel: MF-R, MF-RX, MF-R/90
max.
Not specified
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.