PA
RT
Low Loss
Surface Mount Power Toroid
NU
MB
ER
Series LLST
LLST4R7
LLST10
LLST15
LLST18
LLST22
LLST25
LLST27
LLST33
LLST47
LLST75
LLST100
LLST125
LLST140
LLST150
LLST175
LLST200
LLST220
LLST270
LLST300
LLST350
LLST400
LLST450
LLST500
4.7
10
15
18
22
25
27
33
47
75
100
125
140
150
175
200
220
270
300
350
400
450
500
IN
D
(µ UCT
H) A
±1 NC
5% E
@
IN
1K
CR
Hz
Ad EM
c, E
10
NT
%
AL
In
C
IN
du
U
CR
ct
RR
Ad EM
an
E
c, E
ce
NT
20
NT
Lo
%
AL
ss
In
C
du
U
SR
ct
RR
F
an
E
MI
ce
NT
NI
Lo
MU
ss
M
(M
DC
Hz
R
)
(O
hm
s)
Ma
CU
x.
RR
Ad E
c M NT
ax RA
. TI
NG
SERIES LLST
4.00
2.80
2.10
1.90
1.70
1.60
1.40
1.30
1.00
0.80
0.80
0.64
0.56
0.56
0.54
0.46
0.46
0.46
0.38
0.36
0.28
0.28
0.26
6.10
4.10
3.20
3.00
2.80
2.60
2.30
2.20
1.80
1.40
1.40
1.10
0.98
0.98
0.90
0.80
0.80
0.78
0.68
0.62
0.50
0.50
0.50
50.0
45.0
40.0
35.0
25.0
20.0
15.0
12.0
10.0
8.0
7.0
6.0
5.0
4.0
3.5
3.2
3.0
2.5
2.0
1.9
1.8
1.7
1.5
0.035
0.050
0.055
0.060
0.070
0.080
0.080
0.080
0.120
0.180
0.250
0.250
0.250
0.260
0.325
0.400
0.400
0.500
0.500
0.625
0.700
0.850
1.000
2.600
2.250
2.150
2.050
1.900
1.780
1.780
1.780
1.450
1.190
1.000
1.000
1.000
0.985
0.890
0.795
0.795
0.710
0.710
0.650
0.600
0.550
0.500
POWER INDUCTORS
Physical Parameters
Inches
A
0.475 ±.020
B
0.420 ±.020
C
0.290 Max.
D
0.400 Ref.
E
0.075 Ref.
0.375 ±0.020
F
Millimeters
12.07 ±0.50
10.67 ±0.50
7.37 Max.
7.62 Ref.
1.91 Max.
9.53 ±0.50
Current Rating
Based on a 35° C max. rise from 90°C ambient.
Material
High Saturation Nickel/Iron Core.
Inductance
Tested at an AC drive level which does not affect the
initial permeability of the core, the DC drive level was 0 amps.
Incremental Current
The DC current which reduces the
inductance value to the percentage drop tabulated.
Terminals
Coated with a 90/10 tin/lead plating.
Inductor Base
Formed from a high temperature thermoplastic
capable of withstanding approx. 600°F for short periods of time.
Marking
API, Inductance, and Date Code.
Operating Temperature Range
–40°C to +125°C
Power Dissipation
0.285 Max. (Watts)
Weight Max.
(Grams) 2.00
Packaging
Bulk only
50
500
400 &
450
350
300
40
270
220
200
175
150
30
140
125
INDUCTANCE DECREASE %
100
75
47
33
27
25
22
18
15
10
4.7
20
10
0
2
3
1
For more detailed graphs, contact factory
4
5
6
7
8
9
10
11
12
DC CURRENT IN AMPS
www
.
delevan
.
com
E-mail: apisales@delevan.com
270 Quaker Rd., East Aurora NY 14052 • Phone 716-652-3600 • Fax 716-652-4814
2/ 2002
PAGE
83
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