CFS12 American Accurate Components, CFS12 Datasheet - Page 10

• Manufacturer Part Number: CFS12
• Description: Document No Tcfs-12os051d Issued Date 2007/7/25 Lead Free Thin Film Chip Fuse Page 1/15
• Manufacturer: American Accurate Components

■ Determination of the type of fuse
■
e.g., choosing 0603 Fuse
◆ Considering Ratio of I
◆ Confrim with us
◆ Considering inrush waveform & calculate I
◆ Choosing fuse’s I
e.g.,
Condition :
Inrush current :
◆ Normal operating voltage : DC 12 V
◆ Following bottom index-table :
◆ Calculating value =2.255 A , 2.255A < rating current of fuse
Condition :
1. Rectangular Wave , Ip = 4 A , t = 1 ( ms ) ,
2.
3.
Calculating :
4. 0.070 > 0.016
Suggesting use CFS06V3T2R50 .
Lead Free Thin Film Chip Fuse
Choosing CFS06V3T2R5 ( I
Inrush shock : 100,000 times ( ≒0.35 )
Calculate Ip
1. Choosing fuse’s I
2. 0.200 x 0.35 = 0.070 (A
Part Designation
CFS12V6T1R25
CFS12V3T2R50
CFS12V3T3R00
CFS12V6TR50
CFS12V6TR80
CFS12V6T1R0
CFS12V6T2R0
CFS12V2T4R0
CFS12V2T5R0
CFS12V2T7R0
CFS12V61R50
2
t (A
2
t = 4
2
2
s) value > calculate I
t repeat numbers to blowing .
2
x 1 x 10
2
t (A
2
s) value X Derating ratio > calculate I
Marking
–
2
3 (A) = 0.016
s)
W
M
K
P
S
Y
F
L
T
3
Z
2
t = 0.200 (A
2
2
t (A
t (A
Rated Current
(A
TA-I TECHNOLOGY CO., LTD
2
2
2
2
s) value
s) value
s)
0.50A
0.80A
1.00A
1.25A
1.50A
2.00A
2.50A
3.00A
4.00A
5.00A
7.00A
s) ) ,
Inrush 100,000 times
Inrush derating ratio
Page 12 index-table
Rated Voltage
63V
63V
63V
63V
63V
63V
32V
32V
24V
24V
24V
Document No
Issued date
2
t (A
Page
2
s) value
TCFS-12OS051D
2007/7/25
10/15