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 LM257X 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
Add "-LF" after part number for Lead-Free
52 KHz Switching Frequency
Low Cost Inductor
EPIXXXXXXAC5 & EPIXXXXXXAC5-LF
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
CSIXXXXXXAC5 Rev. 4 7/27/06 FT
260
437
542
757
1093
Induct.
(H 20%)
@ 0 Adc
DCR
(
Typ.)
.090
.117
.210
.247
.297
Vt1
(V-Sec)
52 KHz
230.8
230.8
230.8
230.8
230.8
Induct.
(H 10%)
@ Idc
220
330
470
680
1000
Part
Number
EPI221302AC5(-LF)
EPI331302AC5(-LF)
EPI471202AC5(-LF)
EPI681132AC5(-LF)
EPI102951AC5(-LF)
Idc
(mA)
3000
3000
2000
1300
950
National
Semiconductor
Chip
LM257X-H220
LM257X-H330
LM257X-H470
LM257X-H680
LM257X-H1000
@ Vt1
C (Typ.)
23
26
20
12
9
Temp.Rise
Core Loss
510
280
210
150
110
@ Vt1
(mW)
Package AC5
Applications
+Vin
+5V
Regulated
Output
Load
LX
H
D1
1N5822
Cin
Cout
Feedback
Output
Vsw
On/Off
Gnd
LM257X
+
+
7V-40V
(60V for HV)
Unregulated
DC Input
Package AC5V
Package AC5H
1.400
Max.
(35.56)
.110/.150
(2.79/3.81)
1.300
(33.02)
.500
(12.70)
.700
(19.78)
.500
(12.70)
Pad Layout
.060
(1.52)
.625
(15.75)
.375 .125
(9.53 3.18)
1.300
Max.
(33.02)
Pad Layout
.500
(12.70)
.060
(1.52)
.700 Max.
(19.78)
.500
(12.70)
.375 .125
(9.53 3.18)
1.300
Max.
(33.02)
Pad Layout
1.100
(27.94)
.060
(1.52)
1.300
Max.
(33.02)
1.100
(27.94)
For no header version : add "V" for Vertical Mount and add "H" for Horizonal Mount
Notes :
1. Lead Finish
2. Peak Solder Rating
(for wave solder process Only)
4. Weight
5. Packaging Information
(Tube)
EPIXXXXXXAC5
SnPb
225C
51 grams
TBD pcs / tube
EPIXXXXXXAC5-LF
Hot Tin Dip (Sn)
260C
51 grams
TBD pcs / tube
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