CP04V3TR50 Datasheet, PDF (11/17 Pages) List of Unclassifed Manufacturers – Thin Film Chip Fuse

Thin Film Chip Fuse
Document No TCP-XXOS006H
Issued date
2012/06/28
Page
11/17
█ Determination of the type of fuse
e.g., Condition :
◆ Calculating value =2.255 A , 2.255A < rating current of fuse
◆ Normal operating voltage : DC 12 V
◆ Following bottom index-table :
Suggesting use CP06V3T2R50 .
Part Designation Marking
Rated
Current
Rated
Voltage
CP06V5TR50
F 0.50A
50V
Part Designation
Marking
Rated
Current
CP12V6TR50
F 0.50A
Rated
Voltage
63V
CP06V3TR63
I 0.63A 32V
CP12V6TR80
K 0.80A 63V
CP06V3TR80
K 0.80A
32V
CP12V6T1R0
L 1.00A 63V
CP06V3T1R0
L 1.00A
32V
CP12V6T1R25 ^M 1.25A 63V
CP06V3T1R25 ^M 1.25A
32V
CP12V6T1R50
P 1.50A 63V
CP06V3T1R50 P 1.50A 32V
CP12V6T2R0
S 2.00A 63V
CP06V3T1R60 N 1.60A
32V
CP12V3T2R50
T 2.50A 32V
CP06V3T2R0
S 2.00A
32V
CP12V3T3R00
3 3.00A 32V
CP06V3T2R50 T 2.50A 32V
CP12V3T4R0
W 4.00A 32V
CP06V3T3R00 3 3.00A 32V
CP12V3T5R0
Y 5.00A 32V
CP06V3T3R15 U 3.15A 32V
CP12V3T7R0
Z 7.00A 32V
CP06V3T4R0 W 4.00A 32V
CP06V3T5R0
Y 5.00A
32V
■ Inrush current :
◆ Considering inrush waveform & calculate I²t (A²s) value
◆ Choosing fuse’s I²t (A²s) value > calculate I²t (A²s) value
◆ Considering Ratio of I²t repeat numbers to blowing
◆ Confrim with us
e.g., choosing 0603 Fuse
Condition :
1. Rectangular Wave , Ip = 4 A , t = 1 ( ms ) ,
Calculate Ip²t = 4² x 1 x 10 ^–3 (A) = 0.016 (A²s)
2. Choosing CP06V3T2R50 ( I²t = 0.1807 (A²s) ) ,
Page 12 index-table
3. Inrush shock : 100,000 times ( ≒0.35 )
Inrush derating ratio
Calculating :
Inrush 100,000 times
1. Choosing fuse’s I²t (A²s) value X Derating ratio > calculate I²t (A²s) value
2. 0.1807 x 0.35 = 0.0632 (A²s)
4. 0.0632 > 0.016
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