RX110
7180T
The MF-RX Series is currently
Features
available, although not recommended
n Radial Leaded Devices
for new designs. The higher voltage
n Cured, flame retardant epoxy polymer
rated MF-RX/72 Series is preferred.
insulating material meets UL 94V-0
requirements
n Agency recognition:
n RoHS compliant* and halogen free**
MF-RX Series - PTC Resettable Fuses
Electrical Characteristics
1 Hour (R ) Tripped
1
Initial Max. Time
I I Post-Trip Power
hold trip
Resistance to Trip
Resistance Dissipation
V max. I max.
Model
Volts Amps Amperes Ohms Ohms Amperes Seconds Watts
at 23 C at 23 C at 23 C at 23 C at 23 C at 23 C
Hold Trip Min. Max. Max. Typ.
MF-RX110 60 40 1.10 2.20 0.15 0.25 0.38 5.5 8.2 1.50
MF-RX135 60 40 1.35 2.70 0.12 0.19 0.30 6.75 9.6 1.70
MF-RX160 60 40 1.60 3.20 0.09 0.14 0.22 8.0 11.4 1.90
MF-RX185 60 40 1.85 3.70 0.08 0.12 0.19 9.25 12.6 2.10
MF-RX250 60 40 2.50 5.00 0.05 0.08 0.13 12.5 15.6 2.50
MF-RX300 60 40 3.00 6.00 0.04 0.06 0.10 15.0 19.8 2.80
MF-RX375 60 40 3.75 7.50 0.03 0.05 0.08 18.75 24.0 3.20
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
Moisture Sensitivity Level ..................................... 1
ESD Classification (HBM) ..................................... 6
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
Additional Features Applications
n Bulk packaging, tape and reel and Ammo- Almost anywhere there is a low voltage power
Pak available on most models supply, up to 60 V and a load to be protected,
including:
n Resettable circuit protection
n Security and fire alarm systems
n Loud speakers
n Power transformers
MF-RXMF-RX SeriesSeries -- PTCPTC ResettableResettable FusesFuses
Product Dimensions
C Physical Characteristics
A B D E
Model
Max. Max. Nom. Tol. Min. Max. Style Lead Dia. Material
13.0 18.0 5.1 0.7 7.6 3.1 0.81
MF-RX110 1 Sn/Cu
(0.512) (0.709) (0.201) (0.028) (0.299) (0.122) (0.032)
14.5 19.6 5.1 0.7 7.6 3.1 0.81
MF-RX135 1 Sn/Cu
(0.571) (0.772) (0.201) (0.028) (0.299) (0.122) (0.032)
16.3 21.3 5.1 0.7 7.6 3.1 0.81
MF-RX160 1 Sn/Cu
(0.642) (0.839) (0.201) (0.028) (0.299) (0.122) (0.032)
17.8 22.9 5.1 0.7 7.6 3.1 0.81
MF-RX185 1 Sn/Cu
(0.701) (0.902) (0.201) (0.028) (0.299) (0.122) (0.032)
21.3 26.4 10.2 0.7 7.6 3.1 0.81
MF-RX250 1 Sn/Cu
(0.839) (1.039) (0.402) (0.028) (0.299) (0.122) (0.032)
24.9 30.0 10.2 0.7 7.6 3.1 0.81
MF-RX300 1 Sn/Cu
(0.980) (1.181) (0.402) (0.028) (0.299) (0.122) (0.032)
28.4 33.5 10.2 0.7 7.6 3.1 0.81
MF-RX375 1 Sn/Cu
(1.118) (1.319) (0.402) (0.028) (0.299) (0.122) (0.032)
Packaging options: 0.81 (20AWG)
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
Package 1
A E How to Order Typical Time to Trip at 23 C
MF - RX 110 - 0 - 99
Multifuse
Product Designator
B
Series
1000
RX = Radial Leaded Component
Hold Current, I
hold
110-375 (1.10 Amps - 3.75 Amps)
D
100
Packaging Options
- __ = Bulk Packaging without part
number suffix option
- 0-99 = Bulk Packaging with part
C
10
number suffix option
- 2 = Tape and Reel without part
NOTE: Kinked lead option is available for
number suffix option*
board standoff. Contact factory for details.
- 2-99 = Tape and Reel with part number
1
suffix option*
Typical Part Marking
- AP = Ammo-Pak*
- 0-14 = Kinked leads where straight
Represents total content. Layout may vary.
0.1
leads are standard
- 0-17 = Straight leads where kinked
MANUFACTURER'S
leads are standard
TRADEMARK
PART
Part Number Suffix Option
0.01
IDENTIFICATION
RX110 - 99 = RoHS Compliancy
LOT NO.
(T = TAIWAN As of date code April 1, 2005 all
7180T
DATE CODE
S = CHINA)
MF-RX models are RoHS compliant.
(FIRST DIGIT =
0.001
LAST DIGIT OF YEAR; The sufxfi -99 can be used if a new
110 100
NEXT THREE DIGITS =
part number is required to reference
DAY OF YEAR)
the RoHS compliance, but including
Fault Current (Amps)
the -99 suffix option is not
recommended for new designs.
*Packaged per EIA486-B
MF-RX SERIES, REV. S, 10/17
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-RX110
MF-RX135
MF-RX160
MF-RX185
MF-RX250
MF-RX300
MF-RX375
Time to Trip (Seconds)