Thru-Hole Power Inductor
ELECTRONICS INC.
EPIXXXXXXAC5 & EPIXXXXXXAC5-LF
• 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
Primary Specification
Part
Number
EPI221302AC5(-LF)
EPI331302AC5(-LF)
EPI471202AC5(-LF)
EPI681132AC5(-LF)
EPI102951AC5(-LF)
National
Semiconductor
Chip
LM257X-H220
LM257X-H330
LM257X-H470
LM257X-H680
LM257X-H1000
Induct.
(µH ± 20%)
@ 0 Adc
260
437
542
757
1093
DCR
(Ω Typ.)
.090
.117
.210
.247
.297
Induct.
(µH 10%)
@ Idc
220
330
470
680
1000
Idc
(mA)
3000
3000
2000
1300
950
Core Loss
@ Vt1
(mW)
510
280
210
150
110
Vt1
(V-µSec)
52 KHz
230.8
230.8
230.8
230.8
230.8
Temp.Rise
@ Vt1
°C (Typ.)
23
26
20
12
9
For no header version : add “V” for Vertical Mount and add “H” for Horizonal Mount
Applications
7V-40V
(60V for HV)
Unregulated
DC Input
Feedback
+Vin
Cin
+
LM257X
Vsw
Output
D1
1N5822
LX
µH
+
Cout
+5V
Regulated
Output
Load
Gnd
On/Off
Package AC5V
Pad Layout
.700 Max.
(19.78)
1.300
Max.
(33.02)
.500
(12.70)
.060 Ø
(1.52)
Package AC5
Pad Layout
.060 Ø
(1.52)
.500
(12.70)
Package AC5H
1.300
Max.
(33.02)
1.300
(33.02)
.700
(19.78)
.375 ± .125
(9.53 ± 3.18)
1.100
(27.94)
Pad Layout
1.300
Max.
(33.02)
1.100
(27.94)
1.400
Max.
(35.56)
.375 ± .125
(9.53 ± 3.18)
.500
(12.70)
Notes :
1. Lead Finish
2. Peak Solder Rating
(for wave solder process Only)
.625
(15.75)
.110/.150
(2.79/3.81)
.500
(12.70)
EPIXXXXXXAC5-LF
Hot Tin Dip (Sn)
260°C
51 grams
TBD pcs / tube
.060 Ø
(1.52)
EPIXXXXXXAC5
SnPb
225°C
51 grams
(Tube)
TBD pcs / tube
4. Weight
5. Packaging Information
Unless Otherwise Specified Dimensions are in Inches /mm ± .010 /.25
PCA ELECTRONICS, INC.
16799 SCHOENBORN ST.
NORTH HILLS, CA 91343
Product performance is limited to specified parameters. Data is subject to change without prior notice.
CSIXXXXXXAC5
Rev. 4
7/27/06 FT
TEL: (818) 892-0761
FAX: (818) 894-5791
http://www.pca.com
京公网安备 11010802033920号
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