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MF-RX185 Datasheet(PDF) 1 Page - Bourns Electronic Solutions

Part # MF-RX185
Description  PTC Resettable Fuses
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Manufacturer  BOURNS [Bourns Electronic Solutions]
Direct Link  http://www.bourns.com
Logo BOURNS - Bourns Electronic Solutions

MF-RX185 Datasheet(HTML) 1 Page - Bourns Electronic Solutions

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MF-RX Series - PTC Resettable Fuses
X110
0180T
R
Electrical Characteristics
Features
Radial Leaded Devices
Cured, flame retardant epoxy polymer
insulating material meets
UL 94V-0 requirements
Agency recognition:
RoHS compliant*
1 Hour (R1)
Max. Time
Tripped
Ihold
Itrip
Initial
Post-Trip
To Trip
Power
Resistance
Resistance
Dissipation
Model
Amperes
Ohms
Ohms
Amperes
Seconds
Watts
V max.
I max.
at 23
°C
at 23
°C
at 23
°C
at 23
°C
at 23
°C
at 23
°C
Volts
Amps
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
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
Environmental Characteristics
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
Test Procedures And Requirements For Model MF-RX Series
Thermal Derating Chart - Ihold / Itrip (Amps)
TV Rheinland
Ambient Operating Temperature
Model
-40
°C
-20
°C0 °C
23
°C
40
°C
50
°C
60
°C
70
°C
85
°C
MF-RX110
1.71 / 3.42
1.50 / 3.00
1.31 / 2.62
1.10 / 2.20
0.89 / 1.78
0.79 / 1.58
0.69 / 1.38
0.59 / 1.18
0.44 / 0.88
MF-RX135
2.09 / 4.18
1.84 / 3.68
1.61 / 3.22
1.35 / 2.70
1.09 / 2.18
0.97 / 1.94
0.85 / 1.70
0.73 / 1.46
0.54 / 1.08
MF-RX160
2.48 / 4.96
2.18 / 4.36
1.90 / 3.80
1.60 / 3.20
1.30 / 2.60
1.15 / 2.30
1.01 / 2.02
0.86 / 1.72
0.64 / 1.28
MF-RX185
2.87 / 5.74
2.52 / 5.04
2.20 / 4.40
1.85 / 3.70
1.50 / 3.00
1.33 / 2.66
1.17 / 2.34
1.00 / 2.00
0.74 / 1.48
MF-RX250
3.88 / 7.76
3.40 / 6.80
2.98 / 5.96
2.50 / 5.00
2.03 / 4.06
1.80 / 3.60
1.58 / 3.16
1.35 / 2.70
1.00 / 2.00
MF-RX300
4.65 / 9.30
4.08 / 8.16
3.57 / 7.14
3.00 / 6.00
2.43 / 4.86
2.16 / 4.32
1.89 / 3.78
1.62 / 3.24
1.20 / 2.40
MF-RX375
5.81 / 11.6
5.10 / 10.2
4.46 / 8.92
3.75 / 7.50
3.04 / 6.08
2.70 / 5.40
2.36 / 4.72
2.03 / 4.06
1.50 / 3.00
The MF-RX Series is currently
available, although not recommended
for new designs. The higher voltage
rated MF-RX/72 Series is preferred.
*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.


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