MF-RX185-72
MF-RX185-72 is PTC Resettable Fuses manufactured by Bourns.
- Part of the MF-RX020-72 comparator family.
- Part of the MF-RX020-72 comparator family.
Features n 72 V rated n Cured, flame retardant epoxy polymer insulating material meets UL 94 V-0 requirements n Ro HS pliant- and halogen free-
- n Agency recognition:
Applications
Almost anywhere there is a low voltage power supply, up to 72 V and a load to be protected, including: n Security and fire alarm systems n Loudspeakers n Power transformers
MF-RX/72 Series
- PTC Resettable Fuses
Electrical Characteristics
Model
MF-RX020/72 MF-RX025/72 MF-RX030/72 MF-RX040/72 MF-RX050/72 MF-RX065/72 MF-RX075/72 MF-RX090/72 MF-RX110/72 MF-RX135/72 MF-RX160/72 MF-RX185/72 MF-RX250/72 MF-RX300/72 MF-RX375/72
Vmax
Imax
Ihold
Itrip LEAD FRREEes Inisittiaanlce at 23 °C at 23 °C Ohms
Volts
72 72 72 72 72 72 72 72 72 72 72 72 72 72 72
Amps
40 40 40 40 40 40 40 40 40 40 40 40 40 40 40
Amps
0.20 0.40 0.25 0.50 0.30 0.60 0.40 0.80 0.50 1.00 0.65 1.30 0.75 1.50 0.90 1.80 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
Min.
1.50 1.00 0.76 0.52 0.41 0.27 0.18 0.14 0.15 0.12 0.09 0.08 0.05 0.04 0.03
Max.
2.84 1.95 1.36 0.86 0.77 0.48 0.40 0.31 0.25 0.19 0.14 0.12 0.08 0.06 0.05
1PHoosut-r T(r Rip1) Resistance
Max. Time to Trip
Tripped Power Dissipation at 23 °C Ohms at 23 °C at 23 °C Watts
Max.
4.40 LVEREAo RDH1123SSFI....ORC1210NEOSE7900MAPRLEIANT-
0.72 0.60 0.47 0.38 0.30 0.22 0.19 0.13 0.10 0.08
Amps
1.00 1.25 1.50 2.00 2.50 3.25 3.75 4.50 5.50 6.75 8.00 9.25 12.50 15.00 18.75
Seconds
2.2 2.5 3.0 3.9 4.0 5.3 6.3 7.2 8.2 9.6 11.4 12.6 15.6 19.8 24.0
Typ.
0.40 0.45 0.50 0.55 0.75 0.90 0.90 1.00 1.50 1.70 1.90 2.10 2.50 2.80 3.20
Agency Recognition c UL
TÜV
E174545 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3
R50366745 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3
Environmental Characteristics...