mfrx

The MF-RX Series is currently
available, although not recommended
for new designs. The higher voltage
rated MF-RX/72 Series is preferred.
CO
LO & MP
LI
GE
AN
N
T
FR
EE
Features
■ Radial Leaded Devices
*R
oH
S
■ Cured, flame retardant epoxy polymer
**
HA
insulating material meets UL 94V-0
requirements
■ Agency recognition:
■ RoHS compliant* and halogen free**
MF-RX Series - PTC Resettable Fuses
Electrical Characteristics
Ihold
Model
V max.
Volts
I max.
Amps
MF-RX110
MF-RX135
MF-RX160
MF-RX185
MF-RX250
MF-RX300
MF-RX375
60
60
60
60
60
60
60
40
40
40
40
40
40
40
Itrip
Amperes
at 23 °C
Hold
1.10
1.35
1.60
1.85
2.50
3.00
3.75
Trip
2.20
2.70
3.20
3.70
5.00
6.00
7.50
Tripped
Power
Dissipation
Initial
Resistance
1 Hour (R1)
Post-Trip
Resistance
Ohms
at 23 °C
Ohms
at 23 °C
Amperes
at 23 °C
Seconds
at 23 °C
Watts
at 23 °C
Max.
0.38
0.30
0.22
0.19
0.13
0.10
0.08
5.5
6.75
8.0
9.25
12.5
15.0
18.75
8.2
9.6
11.4
12.6
15.6
19.8
24.0
Typ.
1.50
1.70
1.90
2.10
2.50
2.80
3.20
Min.
0.15
0.12
0.09
0.08
0.05
0.04
0.03
Max.
0.25
0.19
0.14
0.12
0.08
0.06
0.05
Max. Time
to Trip
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 ................................................ E174545
TÜV File Number ............................................. R2057213
Thermal Derating Chart - Ihold / Itrip (Amps)
Model
MF-RX110
MF-RX135
MF-RX160
MF-RX185
MF-RX250
MF-RX300
MF-RX375
Ambient Operating Temperature
-40 ºC
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 ºC
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 ºC
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 ºC
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 ºC
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 ºC
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 ºC
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 ºC
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 ºC
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 and RoHS Recast 2011/65/EU June 8, 2011.
** Bourns follows the prevailing definition of “halogen free” in the industry. Bourns considers a product to be “halogen free” if (a) the Bromine (Br) content is 900 ppm or less;
(b) the Chlorine (Cl) content is 900 ppm or less; and (c) the total Bromine (Br) and Chlorine (Cl) content is 1500 ppm or less.
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
Applications
■ Bulk packaging, tape and reel and Ammo-
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
Pak available on most models
■ Resettable circuit protection
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)
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
E
Physical Characteristics
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)
Style
1
1
1
1
1
1
1
C
NOTE: Kinked lead option is available for
board standoff. Contact factory for details.
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
LOT NO.
(T = TAIWAN
S = CHINA)
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Typical Time to Trip at 23 ˚C
How to Order
MF
-R
MF X110
-R
MF X135
-R
MF X160
-R
MF X185
-R
MF X250
-R
MF X300
-RX
375
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
-2=
Tape and Reel without part
number suffix option*
- 2-99 = Tape and Reel with part number
suffix option
- AP =
Ammo-Pak*
- 0-14 = Kinked leads where straight
leads are standard
- 0-17 = Straight leads where kinked
leads are standard
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.
Examples:
MF-RX110 ...............Bulk packaging
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
1000
100
Time to Trip (Seconds)
D
Material
0.81 (20AWG)
MF - RX 110 - 0 - 99
B
Lead Dia.
0.81
(0.032)
0.81
(0.032)
0.81
(0.032)
0.81
(0.032)
0.81
(0.032)
0.81
(0.032)
0.81
(0.032)
10
1
0.1
0.01
0.001
1
10
100
Fault Current (Amps)
*Packaged per EIA486-B
MF-RX SERIES, REV. Q, 08/15
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-R, MF-R/90, MF-R/600, MF-RX, 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.
IEC
Mark
EIA
Mark
Carrier tape width
W
W
Hold down tape width
W0
W4
Dimension Description
Hold down tape
Dimensions
Dimensions
Tolerance
18
-0.5/+1.0
(.709)
(-0.02/+.039)
11
min.
(.433)
No protrusion
Top distance between tape edges
W2
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 (straight lead)
H1
H1
Abscissa to top (kinked lead)
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-down tape
I2
I2
Not specified
Sprocket hole pitch
P0
P0
12.7
(0.5)
Pitch tolerance
20 consecutive
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
(±.039)
Device pitch: MF-R005–MF-R160, MF-R/90,
MF-RX110/72–MF-RX185/72
12.7
(0.5)
±0.3
(±.012)
Device pitch: MF-R185–MF-R400, MF-RX110–MF-RX375
MF-R/600, MF-RX250/72–MF-RX375/72
25.4
(1.0)
±0.6
(±.024)
0.9
(.035)
max.
Tape thickness
t
t
Tape thickness with splice: MF-R010–MF-R160,
MF-RX110/72–MF-RX185/72
t1
1.5
(.059)
max.
Tape thickness with splice: MF-R250–MF-R1100,
MF-RX110–MF-RX375, MF-R/90, MF-RX250/72-MF-RX375/72
t1
2.3
(.091)
max.
Splice sprocket hole alignment
0
Body lateral deviation
Δh
Δh
0
Body tape plane deviation
Δp
Δp
0
±0.3
(±.012)
±1.0
(±.039)
±1.3
(±.051)
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-R, MF-R/90, MF-R/600, MF-RX, MF-RX/72 & MF-RX/250 Series
Tape and Reel Specifications
IEC
Mark
EIA
Mark
Lead spacing: MF-R, MF-R/90, MF-R/600, MF-RX, MF-RX/72
F
F
Lead spacing: MF-RX/250
F
F
Reel width
w
W2
Reel diameter
d
a
W1
h
Arbor hole diameter
f
c
Core diameter: MF-R, MF-RX, MF-R/90
h
n
Core diameter: MF-RX/250, MF-R/600
h
n
Dimension Description
Space between flanges less device
Box: MF-R, MF-RX, MF-R/90
Box: MF-RX/250
Box: MF-R/600
Dimensions
Dimensions
Tolerance
5.08
±0.2
(0.2)
(±0.008)
5.08
-0.5/+0.6
(0.2)
(-.020/+.024)
56.0
max.
(2.205)
370.0
max.
(14.57)
4.75
±3.25
(.187)
(±.128)
26.0
±12.0
(1.024)
(±.472)
80
max.
(3.15)
91
max.
(3.58)
62
355
345
nom.
(2.44) (14.0) (13.6)
67
372
362
max.
(2.64) (14.6) (14.25)
64
372
362
max.
(2.52) (14.6) (14.25)
Consecutive missing places: MF-R, MF-RX, MF-R/90
3
Consecutive missing places: MF-RX/250, MF-R/600
none
max.
Empty places per reel: MF-R, MF-RX, MF-R/90
Not specified
Empty places per reel: MF-RX/250, MF-R/600
0.1 %
Taped Component Dimensions Figure 1
Δh
Δp
Δh
Δp
Reference plane
P1
H1
A
L
I2
H1
F
H
H0
B
W0
P0
I1
D0
W1
W
User direction of feed
Cross section A - B
t
Reel Dimensions - Figure 2
Reel
h
d
User
direction
of
feed
Upper side
Tape
Lower side
f
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.