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

*RoHS ^COMPLIANT
014S43T50
Features
■ Axial leaded
■ Fully compatible with current
industry standards
■ Weldable nickel terminals
■ Very low internal resistance
■ Agency recognition:
T V Rheinland
■ RoHS compliant*
■ Lead free
Applications
■ Rechargeable Battery Pack Protection
■ Provides overcurrent protection with
125 °C trip temperature
MF-S Series - PTC Resettable Fuses
Electrical Characteristics
Model
V max.
Volts
I max.
Amps
MF-S120
MF-S120S
MF-S150
MF-S175
MF-S175S
MF-S200
MF-S350
MF-S420
15
100
15
100
15
100
15
100
15
100
30
100
30
100
30
100
NOTE: Slotted lead option available on all models.
Ihold
Itrip
Amperes
at 23 °C
Hold
Trip
1.20
2.70
1.20
2.70
1.50
3.00
1.75
3.80
1.75
3.80
2.00
4.40
3.50
6.30
4.20
7.60
Initial
Resistance
Ohms
at 23 °C
Min.
Max.
0.085
0.085
0.050
0.050
0.050
0.030
0.017
0.012
0.160
0.160
0.090
0.090
0.090
0.060
0.031
0.024
1 Hour (R1)
Post-Trip
Resistance
Max. Time
To Trip
Tripped
Power
Dissipation
Ohms
at 23 °C
Max.
0.220
0.220
0.110
0.120
0.120
0.080
0.040
0.040
Amperes
at 23 °C
6
6
8
9
9
10
20
20
Seconds
at 23 °C
5.0
5.0
5.0
4.0
4.0
4.0
3.0
6.0
Watts
at 23 °C
Typ.
1.20
1.20
1.30
1.50
1.50
1.90
2.50
2.90
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. 7 days ............................±5 % typical resistance change
Vibration ..............................................................MIL-STD-883C, Method 2007.1, ................No change
Condition A
Test Procedures And Requirements For Model MF-S 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 ≤ R1max
Time to Trip ........................................................At specified current, 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
Thermal Derating Chart - Ihold _/ Itrip (Amps)
Model
MF-S120
MF-S120S
MF-S150
MF-S175
MF-S175S
MF-S200
MF-S350
MF-S420
-40 °C
1.90 / 4.28
1.90 / 4.28
2.20 / 4.40
2.50 / 5.59
2.50 / 5.59
3.20 / 7.04
5.40 / 9.72
6.40 / 11.5
-20 °C
1.70 / 3.83
1.70 / 3.83
2.00 / 4.00
2.30 / 5.14
2.30 / 5.14
2.80 / 6.16
4.80 / 8.64
5.70 / 10.3
0 °C
1.50 / 3.38
1.50 / 3.38
1.80 / 3.60
2.00 / 4.47
2.00 / 4.47
2.50 / 5.50
4.30 / 7.74
5.10 / 9.23
Ambient Operating Temperature
23 °C
1.20 / 2.70
1.20 / 2.70
1.50 / 3.00
1.70 / 3.80
1.70 / 3.80
2.00 / 4.40
3.50 / 6.30
4.20 / 7.60
40 °C
1.00 / 2.25
1.00 / 2.25
1.30 / 2.60
1.50 / 3.35
1.50 / 3.35
1.70 / 3.74
3.00 / 5.40
3.60 / 6.51
50 °C
0.90 / 2.03
0.90 / 2.03
1.10 / 2.20
1.30 / 2.91
1.30 / 2.91
1.60 / 3.52
2.80 / 5.04
3.30 / 5.97
60 °C
0.80 / 1.80
0.80 / 1.80
1.00 / 2.00
1.20 / 2.68
1.20 / 2.68
1.40 / 3.08
2.50 / 4.50
3.00 / 5.43
70 °C
0.70 / 1.58
0.70 / 1.58
0.90 / 1.80
1.10 / 2.46
1.10 / 2.46
1.20 / 2.64
2.20 / 3.96
2.60 / 4.70
85 °C
0.50 / 1.13
0.50 / 1.13
0.70 / 1.40
0.90 / 2.01
0.90 / 2.01
0.90 / 1.98
1.70 / 3.06
2.10 / 3.80
*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.