
*
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.
MF-RX/250 Series -
Telecom PTC Resettable Fuses
RX012
24001K
Features
■
Radial Leaded Devices
■
Fast tripping resettable PTCs
■
Binned and sorted narrow resistance
ranges available
■
RoHS compliant*
■
Lead free
■
Agency recognition:
Applications
■
Customer Premise Equipment (CPE)
■
Central Office / Telecom Centers (CO)
■
Access equipment
Operating/Storage Temperature ..............................-40 °C to +85 °C
Maximum Device Surface Temperature
in Tripped State......................................................125 °C
Passive Aging ..........................................................+85 °C, 1000 hours ........................................................±15 % typical resistance change
+60°C, 1000 hours
Humidity Aging ........................................................+85 °C, 85 % R.H. 500 hours ..........................................±15 % typical resistance change
Thermal Shock ........................................................MIL-STD-202F, Method 107G, ........................................±10 % typical resistance change
+125 °C to -55 °C,10 times
Solvent Resistance ..................................................MIL-STD-202, Method 215B............................................No change
Lead Solerability ......................................................ANSI/J-STD-002 ..............................................................>95 % coverage
Flammability ............................................................IEC 695-2-2......................................................................No Flame for 60 secs.
Vibration ..................................................................MIL-STD-883C, Method 2007.1, Condition A..................±5 % typical resistance change
±15 % typical resistance change
±15 % typical resistance change
Environmental Characteristics
Test
Visual/Mech. ......................................................Verify dimensions and materials..................Per MF physical description
Resistance ..........................................................In still air @ 23 °C ........................................Rmin
≤
R
≤
R1max
Time to Trip ........................................................At specified current, Vmax, 23 °C ..............T
≤
typical 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
Test Conditions
Accept/Reject Criteria
UL File Number ..................................................E 174545S
CSA File Number................................................CA 110338
TüV File Number ................................................R02057213
Test Procedures And Requirements For Model MF-RX/250 Series
TV Rheinland
Max.
Interrupt
Ratings
One Hour
Post-Trip
Resistance
Ohms
at
23
°
C
Max.
Max.
Hold
Current
Amps
at
23
°
C
IH
0.12
0.12
0.12
0.12
0.12
0.12
0.12
0.12
0.145
0.145
0.145
0.145
0.145
0.18
0.18
0.18
Initial
Resistance
Ohms
at
23
°
C
Min.
Operating
Voltage
Model
Volts
(Vrms)
Amps
(A)
Ohms
at
23
°
C
Max.
(Vdc)
Max.
Max.
MF-RX012/250
MF-RX012/250-A
MF-RX012/250-C
MF-RX012/250-F
MF-RX012/250-1
MF-RX012/250-2
MF-RX012/250-T
MF-RX012/250U
MF-RX014/250
MF-RX014/250-A
MF-RX014/250-B
MF-RX014/250-T
MF-RX014/250U
MF-RX018/250
MF-RX018/250F
MF-RX018/250U
60
60
60
60
60
60
60
60
60
60
60
60
60
60
100
60
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
10.0
10.0
10.0
4.0
7.0
5.5
6.0
6.0
8.0
7.0
6.0
3.0
3.0
4.5
5.4
3.5
0.8
0.8
0.8
8.0
9.0
7.5
10.5
9.0
10.5
12.0
10.0
6.0
5.5
6.0
7.5
6.5
2.0
2.2
2.0
16.0
16.0
14.0
16.0
16.0
16.0
16.0
16.0
14.0
12.0
14.0
14.0
12.0
4.0
4.0
4.0
Electrical Characteristics
“U” suffix indicates product without insulation coating.
*RHSCOMPIAN