MF-RG Datasheet, PDF (1/4 Pages) Bourns Electronic Solutions – PTC Resettable Fuses

*RoHS ^COMPLIANT
RG700
Features
■ Radial leaded devices
■ Smaller size for similar Ihold rating
■ Faster tripping
■ RoHS compliant*
Applications
■ Automotive applications
■ Anywhere space is limited and fast
tripping is required
MF-RG Series - PTC Resettable Fuses
Electrical Characteristics
Model
MF-RG300
MF-RG500
V max.
Volts
I max.
Amps
16
100
16
100
Ihold
Itrip
Amperes
at 23 °C
Hold
Trip
3.00
5.10
5.00
8.50
Initial
Resistance
Ohms
at 23 °C
Min.
Max.
0.038
0.065
0.015
0.023
1 Hour (R1)
Post-Trip
Resistance
Max. Time
To Trip
Ohms
at 23 °C
Max.
Amperes
at 23 °C
Seconds
at 23 °C
0.098 15
1.0
0.034 25
2.0
Tripped
Power
Dissipation
Watts
at 23 °C
Typ.
2.30
2.60
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
Test Procedures And Requirements For Model MF-RG 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
Thermal Derating Chart - Ihold (Amps)
Model
MF-RG300
MF-RG500
-40 °C
4.4
7.3
-20 °C
4.0
6.6
*Itrip is approximately two times Ihold.
0 °C
3.6
6.0
Ambient Operating Temperature
23 °C
40 °C
50 °C
3.0
2.6
2.4
5.0
4.4
4.0
60 °C
2.1
3.6
70 °C
1.9
3.1
85 °C
1.4
2.4
Circuit Protection Division
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www.bourns.com
*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.