Datasheet

Blade Fuses
FK1 MINI ® STYLE BLADE FUSE RATED 32V
Specifications
Insulating Body:
Out of thermoplastic (UL 94-V0, heat-resistant)
Interrupting Rating:
1000 A @32 VDC
Cover:
Out of thermoplastic (V0, transparent)
Visible melting-element
Shunt: Red, not transparent
Terminals:
Blade contacts
Copper alloy, gal. Sn plated
Edge-protected
Complies with:
ISO 8820-3:2002(E)
UL 248 Special Purpose Fuses
cULus Recognized:
File No. E10480
Ordering Information
Part Number
Package Size
168.6785.xxx2
8000
168.6785.xxx7
50
Description
The FK1 32V automotive standard fuse link in a MINI® package.
Three part construction with copper contacts for excellent
reliability in harsh environment conditions with low voltage drop.
Current ratings 1A thru 30A. See-through cover for easy detection
of blown fuses.
Time-Current Characteristics
% of Rating
Opening Time Min / Max (s)
110
360,000 s / –
135
0.75 s / 1,800 s
200
0.15 s / 5 s
350
0.040 s / 0.500 s
600
0.020 s / 0.100 s
Ratings
Part Number
Current Rating
Housing Color
Typ. Voltage Drop
Cold Resistance
I2t
168.6785.410_
1A
135 mV
100 mΩ
0.83 A²s
168.6785.420_
2A
110 mV
43.0 mΩ
3.31 A²s
168.6785.430_
3A
110 mV
27.0 mΩ
7.45 A²s
168.6785.440_
4A
110 mV
21.3 mΩ
16.7 A²s
168.6785.450_
5A
105 mV
16.2 mΩ
19.8 A²s
168.6785.475_
7.5A
100 mV
9.70 mΩ
44.5 A²s
168.6785.510_
10A
110 mV
7.40 mΩ
79.2 A²s
168.6785.515_
15A
105 mV
4.50 mΩ
178 A²s
168.6785.520_
20A*
100 mV
3.10 mΩ
331 A²s
168.6785.525_
25A*
120 mV
2.60 mΩ
653 A²s
168.6785.530_
30A*
105 mV
1.95 mΩ
1,264 A²s
160.6785.000_
Shunt*
60 mV
1.35 mΩ
1,800 A²s
* No UL Certification Available
Corresponding holder see Section “Fuse Holders.”
www.littelfuse.com
Blade Fuses
FK1 MINI ® STYLE BLADE FUSE RATED 32V
Dimensions
Pre-Arcing Time-Limits
Dimensions in mm
FI = 1.33 (max. operating current: 0.75 x Irat at 23°C)
www.littelfuse.com
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