Datasheet

Blade Fuses
TF ATO ® STYLE BLADE FUSE RATED 90V
Specifications
Insulating Body:
Out of thermoplastic (UL 94-V0, heat-resistant)
Cover:
Out of thermoplastic (UL 94-V0, heat-resistant)
Visible melting element
Terminals:
Blade contacts
Copper alloy, gal. Sn
Edge-protected
Test cable:
4 mm²
Ordering Information
Part Number
Package Size
162.7049.xxx2
2000
Time-Current Characteristics
Description
The TF is an ATO ® style blade fuse rated at 90V, featuring a three
part construction with copper contacts for excellent reliability in
harsh environment conditions and low voltage drop. With seethrough cover for easy detection of blown fuses. The fuses were
defined over the I²t value, not via t/c curve requirements.
Dimensions
% of Rating
Opening Time Min / Max (s)
110
14,400 s / –
200
(4A & 8A only)
– / 300 s
300
– / 10 s
500
0.20 s / –
Pre-arcing Time-limits
Dimensions in mm
Ratings
Part Number
Current Rating
162.7049.4402
Housing Color
Typ. Voltage Drop
Cold Resistance
I2t
4A
115 mV
19.4 Ω
> 100 A²s
162.7049.4802
8A
80 mV
7.50 Ω
> 300 A²s
162.7049.5102
10 A
70 mV
6.10 Ω
> 580 A²s
162.7049.5152
15 A
65 mV
3.50 Ω
> 1,700 A²s
Remark: TF-fuse links are back-up fuse links, see minimum fault current.
Corresponding holder see Section “Fuse Holders.”
© 2012 Littelfuse • Transportation Products Catalog
www.littelfuse.com