Datasheet

www.littelfuse.com
BF1 FUSE RATED 32V
Dimensions
Dimensions in mm
Derating
Individual derating curves by rating can be ordered through your
Littelfuse contact person.
Pre-Arcing Time-Limits
23 A - 150 A: FI = 1.25 (max. operating current: 0.8 x I
rat
at 23°C)
200 A: FI = 2.00 (max. operating current: 0.5 x I
rat
at 23°C)
Ratings
Part Number
Current Rating
Housing Material
Color
Typ. Voltage Drop Cold Resistance I
2
t
M5 M6
153.5631.523_
1,2
- 23 A 105 mV 3.50 mΩ 1,400 A²s
153.5631.530_ 153.7010.530_ 30 A 105 mV 2.70 mΩ 5,100 A²s
153.5631.540_ 153.7010.540_ 40 A 90 mV 1.56 mΩ 6,800 A²s
153.5631.550_ 153.7010.550_ 50 A 80 mV 1.03 mΩ 6,900 A²s
153.5631.560_ 153.7010.560_ 60 A 75 mV 0.75 mΩ 16,200 A²s
153.5631.570_ 153.7010.570_ 70 A 70 mV 0.64 mΩ 22,000 A²s
153.5631.580_ 153.7010.580_ 80 A 70 mV 0.55 mΩ 25,600 A²s
153.5631.610_ 153.7010.610_ 100 A 70 mV 0.44 mΩ 42,500 A²s
153.5631.612_ 153.7010.612_ 125 A 70 mV 0.34 mΩ 62,500 A²s
153.5631.615_
1
153.7010.615_
1
150 A 70 mV 0.29 mΩ 83,400 A²s
- 153.7000.615_
3
150 A 70 mV 0.33 mΩ 98,000 A²s
153.5631.620__
3
153.7000.620__
3
200 A 70 mV 0.24 mΩ 126,000 A²s
Corresponding holder see Section “Fuse Holders.”
Note 1: not mentioned in ISO standard Note 2: Not UL rated Note 3: Short Circuit Protector only
High Current Fuses