RX110
4180S
Features Applications
n 72 V rated Almost anywhere there is a low voltage power
supply, up to 72 V and a load to be protected,
n Radial leaded devices
including:
n Cured, flame retardant epoxy polymer
n Security and fire alarm systems
insulating material meets UL 94 V-0
requirements n Loudspeakers
n RoHS compliant* and halogen free** n Power transformers
n Agency recognition:
MF-RX/72 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-RX020/72 72 40 0.20 0.40 1.50 2.84 4.40 1.0 2.2 0.40
MF-RX025/72 72 40 0.25 0.50 1.00 1.95 3.00 1.25 2.5 0.45
MF-RX030/72 72 40 0.30 0.60 0.76 1.36 2.10 1.5 3.0 0.50
MF-RX040/72 72 40 0.40 0.80 0.52 0.86 1.29 2.0 3.9 0.55
MF-RX050/72 72 40 0.50 1.00 0.41 0.77 1.17 2.5 4.0 0.75
MF-RX065/72 72 40 0.65 1.30 0.27 0.48 0.72 3.25 5.3 0.90
MF-RX075/72 72 40 0.75 1.50 0.18 0.40 0.60 3.75 6.3 0.90
MF-RX090/72 72 40 0.90 1.80 0.14 0.31 0.47 4.5 7.2 1.00
MF-RX110/72 72 40 1.10 2.20 0.15 0.25 0.38 5.5 8.2 1.50
MF-RX135/72 72 40 1.35 2.70 0.12 0.19 0.30 6.75 9.6 1.70
MF-RX160/72 72 40 1.60 3.20 0.09 0.14 0.22 8.0 11.4 1.90
MF-RX185/72 72 40 1.85 3.70 0.08 0.12 0.19 9.25 12.6 2.10
MF-RX250/72 72 40 2.50 5.00 0.05 0.08 0.13 12.5 15.6 2.50
MF-RX300/72 72 40 3.00 6.00 0.04 0.06 0.10 15.0 19.8 2.80
MF-RX375/72 72 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 ..................................................... +85 C to -55 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/72 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
n Resettable circuit protection
n Bulk packaging, tape and reel and Ammo-Pak available on most models
MF-RX/72 Series - PTC Resettable Fuses
Product Dimensions
A B C D E Physical Characteristics
Model
Max. Max. Nom. Tol. Min. Max. Style Lead Dia. Material
7.4 12.7 5.1 0.7 7.6 3.1 0.51
MF-RX020/72 1 Sn/CuFe
(0.291) (0.5) (0.201) (0.028) (0.30) (0.122) (0.020)
7.4 12.7 5.1 0.7 7.6 3.1 0.51
MF-RX025/72 1 Sn/CuFe
(0.291) (0.5) (0.201) (0.028) (0.30) (0.122) (0.020)
7.4 13.4 5.1 0.7 7.6 3.1 0.51
MF-RX030/72 1 Sn/CuFe
(0.291) (0.528) (0.201) (0.028) (0.30) (0.122) (0.020)
7.4 13.7 5.1 0.7 7.6 3.1 0.51
MF-RX040/72 1 Sn/CuFe
(0.291) (0.539) (0.201) (0.028) (0.30) (0.122) (0.020)
7.9 13.7 5.1 0.7 7.6 3.1 0.51
MF-RX050/72 1 Sn/Cu
(0.311 (0.539) (0.201) (0.028) (0.30) (0.122) (0.020)
9.7 15.2 5.1 0.7 7.6 3.1 0.51
MF-RX065/72 1 Sn/Cu
(0.382) (0.598) (0.201) (0.028) (0.30) (0.122) (0.020)
10.4 16.0 5.1 0.7 7.6 3.1 0.51
MF-RX075/72 1 Sn/Cu
(0.409) (0.630) (0.201) (0.028) (0.30) (0.122) (0.020)
11.7 16.70 5.1 0.7 7.6 3.1 0.51
MF-RX090/72 1 Sn/Cu
(0.461) (0.657) (0.201) (0.028) (0.30) (0.122) (0.020)
10.84 16.84 5.1 0.7 7.6 3.1 0.81
MF-RX110/72 2 Sn/Cu
(0.427) (0.662) (0.201) (0.028) (0.30) (0.122) (0.032)
12.26 18.26 5.1 0.7 7.6 3.1 0.81
MF-RX135/72 2 Sn/Cu
(0.483) (0.718) (0.201) (0.028) (0.30) (0.122) (0.032)
13.94 19.94 5.1 0.7 7.6 3.1 0.81
MF-RX160/72 2 Sn/Cu
(0.549) (0.785) (0.201) (0.028) (0.30) (0.122) (0.032)
15.18 21.18 5.1 0.7 7.6 3.1 0.81
MF-RX185/72 2 Sn/Cu
(0.598) (0.833) (0.201) (0.028) (0.30) (0.122) (0.032)
17.84 23.84 10.2 0.7 7.6 3.1 0.81
MF-RX250/72 2 Sn/Cu
(0.702) (0.938) (0.402) (0.028) (0.30) (0.122) (0.032)
20.67 26.67 10.2 0.7 7.6 3.1 0.81
MF-RX300/72 2 Sn/Cu
(0.814) (1.050) (0.402) (0.028) (0.30) (0.122) (0.032)
23.51 29.51 10.2 0.7 7.6 3.1 0.81
MF-RX375/72 2 Sn/Cu
(0.926) (1.161) (0.402) (0.028) (0.30) (0.122) (0.032)
Packaging options:
MM
DIMENSIONS:
BULK: 500 pcs. per bag.
(INCHES)
TAPE & REEL: MF-RX020/72-2 ~ MF-RX090/72-2 = 3000 pcs. per reel; MF-RX110/72-2 ~ MF-RX160/72-2 = 1500 pcs. per reel;
MF-RX185/72-2 - MF-RX375/72-2 = 1000 pcs. per reel.
AMMO-PACK: MF-RX020/72-AP ~ MF-RX090/72-AP = 2000 pcs. per pack; MF-RX110/72-AP ~ MF-RX160/72-AP = 1000 pcs. per pack;
MF-RX185/72-AP - MF-RX375/72-AP = 500 pcs. per pack.
Style 1 Style 2
How to Order
Typical Part Marking
A E
A E
Represents total content. Layout may vary.
MF - RX 110/72 - 2 - 14
MANUFACTURER'S Multifuse
TRADEMARK Product
PART
Designator
IDENTIFICATION
RX110 Series
LOT NO.
B
B
RX = Radial Leaded
(S = CHINA)
DATE CODE 4180S
Component
(FIRST DIGIT =
LAST DIGIT OF YEAR;
Hold Current, Ihold
NEXT THREE DIGITS =
020-375 (0.20 A - 3.75 A)
DAY OF YEAR)
Maximum Voltage, Vmax
72 (72 Volts)
Packaging Options
D
- 0 = Bulk Packaging
- 2 = Tape and Reel*
D
- AP = Ammo-Pak*
Part Number Suffix Option
- 14 = Kinked Leads in Place of
C C
Standard Straight Leads
- 17 = Straight Leads in Place of
Also available with kinked and straight leads in place
Standard Kinked Leads
of standard leads (see How to Order).
*Packaged per EIA 486-B
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.