ETC EPIC3T144C8

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
National
Semiconductor
Chip
Induct.
(µH ± 20%)
@ 0 Adc
DCR
(Ω Typ.)
Induct.
(µH 10%)
@ Idc
Idc
(mA)
Core Loss
@ Vt1
(mW)
Vt1
(V-µSec)
52 KHz
Temp.Rise
@ Vt1
°C (Typ.)
EPI221302AC5(-LF)
EPI331302AC5(-LF)
EPI471202AC5(-LF)
EPI681132AC5(-LF)
EPI102951AC5(-LF)
LM257X-H220
LM257X-H330
LM257X-H470
LM257X-H680
LM257X-H1000
260
437
542
757
1093
.090
.117
.210
.247
.297
220
330
470
680
1000
3000
3000
2000
1300
950
510
280
210
150
110
230.8
230.8
230.8
230.8
230.8
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
+
µH
D1
1N5822
Gnd
Package AC5V
1.300
Max.
(33.02)
+
Cout
On/Off
Package AC5
Package AC5H
Pad Layout
Pad Layout
.060 Ø
(1.52)
.500
(12.70)
.700 Max.
(19.78)
+5V
Regulated
Output
Load
LX
Output
.060 Ø
(1.52)
1.300
Max.
(33.02)
.500
(12.70)
1.300
(33.02)
.375 ± .125
(9.53 ± 3.18)
.700
(19.78)
1.100
(27.94)
1.400
Max.
(35.56)
Pad Layout
.375 ± .125
(9.53 ± 3.18)
1.300
Max.
(33.02)
.500
(12.70)
.625
(15.75)
.110/.150
(2.79/3.81)
Notes :
.500
(12.70)
1.100
(27.94)
.060 Ø
(1.52)
EPIXXXXXXAC5
EPIXXXXXXAC5-LF
1. Lead Finish
SnPb
Hot Tin Dip (Sn)
2. Peak Solder Rating
225°C
260°C
(for wave solder process Only)
4. Weight
5. Packaging Information
(Tube)
51 grams
51 grams
TBD pcs / tube
TBD pcs / tube
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