E L E C T R O N I C S I N C .
Thru-Hole Power Inductor
TEL: (818) 892-0761
FAX: (818) 894-5791
http://www.pca.com
PCA ELECTRONICS, INC.
16799 SCHOENBORN ST.
NORTH HILLS, CA 91343
Optimized for National's LM267X & LM259X Series
Low loss material ensures operation in high frequency switching
converters, such as Buck, Boost or as output averaging filter inductor
Also suitable for use in high quality filter applications
150 KHz & 500 KHz Switching Frequency
Low Cost Inductor
EPI AC3 Series
Product performance is limited to specified parameters. Data is subject to change without prior notice.
Primary Specification
Unless Otherwise Specified Dimensions are in Inches /mm .010 /.25
CSIXXXXXXAC3 Rev. 5 2/22/05 FT
27
27
40
38
60
60
87
87
91
91
128
194
265
Induct.
(H 20%)
@ 0 Adc
DCR
(
Typ.)
0.025
0.025
0.038
0.046
0.074
0.074
0.090
0.090
0.091
0.091
0.110
0.260
0.394
Vt1
(V-Sec)
150 KHz
---
---
---
33.4
40.0
---
46.7
---
26.7
---
55.4
56.7
73.4
@ Vt1
C (Typ.)
---
---
---
31
42
---
37
---
43
---
33
43
39
Induct.
(H 15%)
@ Idc
22
22
33
33
47
47
68
68
68
68
100
150
220
Part
Number
EPI220502AC3
EPI330402AC3
EPI330352AC3
EPI470352AC3
EPI680302AC3
EPI680352AC3
EPI101252AC3
EPI151202AC3
EPI221152AC3
Core Loss
Idc
(mA)
5000
5000
4000
3500
3500
3500
3000
3000
3500
3500
2500
2000
1500
Vt2
(V-Sec)
260 KHz
23.1
23.1
27.0
---
---
28.5
---
30.8
---
12.7
---
---
--
National
Semiconductor
Chip
LM267X-L41
LM267X-L50
LM267X-L40
LM259X-L40
LM259X-L39
LM267X-L39
LM259X-L38
LM267X-L38
LM267X-L44
LM259X-L44
LM259X-L37
LM259X-L36
LM259X-L35
@ Vt2
C (Typ.)
35
35
34
---
---
42
---
37
---
44
---
---
---
Temp.Rise
---
---
---
210
185
---
155
---
45
---
155
113
134
@ Vt1
(mW)
@ Vt2
(mW)
290
290
260
---
---
185
---
155
---
60
---
---
--
Package AC3
.950
Max.
(24.13)
.110/.150
(2.79/3.81)
.840
Max.
(21.33)
.300
(7.62)
.470
Max.
(11.94)
.300
(7.62)
Pad Layout
.060
(1.52)
.415
(10.54)
Applications
Vin
Vout
LX
H
D1
8V-40V
Cin
Cout
CB
10nF
FB
Vsw
Gnd
On/Off
LM267X
+
+
+Vin
Regulated
Output
Load
LX
H
D1
1N5822
Cin
Cout
Feedback
Output
Vsw
On/Off
Gnd
LM259X
+
+
Unregulated
DC Input
Package AC3V
.375 .125
(9.53 3.18)
.840
Max.
(21.33)
Pad Layout
.280
(7.11)
.060
(1.52)
.470 Max.
(11.94)
.280
(7.11)
Package AC3H
.375 .125
(9.53 3.18)
.840
Max.
(21.33)
Pad Layout
.720
(18.29)
.060
(1.52)
.840
Max.
(21.33)
.720
(18.29)
For no header version : add "V" for Vertical Mount and add "H" for Horizonal Mount
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