E L E C T R O N I C S I N C .
Push-Pull Low Power Transformer
TEL: (818) 892-0761
FAX: (818) 894-5791
http://www.pca.com
PCA ELECTRONICS, INC.
16799 SCHOENBORN ST.
NORTH HILLS, CA 91343
Designed for use with Maxim Max845
Used in SMPS Push-Pull Topology
UL 94V-0 Recognized Components
UL 1446 Class B Insulation System
Add "-LF" after part number for Lead-Free
Switching Frequency : 250 KHz-1 Mhz
8 Pin SOIC PCMCIA Package
700 Vdc Minimum Isolation
Very Low Core Loss
EPC3117S-X & EPC3117S-X-LF
Product performance is limited to specified parameters. Data is subject to change without prior notice.
Electrical Parameters @ 25 C
Unless Otherwise Specified Dimensions are in Inches /mm .010 /.25
CSC3117S & -LF Rev. 3 3/21/06 FT
Schematic
1
2
3
4
5
6
7
8
Pri.
Sec.
Package
Pin 1
I.D.
.150
(3.81)
.088 Max. (2.24)
.270
(6.86)
.050
(1.27)
.025
(.635)
.290
(7.37)
.018/.022
(.457/.559)
.090
(2.29)
.050
(1.27)
.030
(.762)
.420
(10.67)
.365
(9.27)
Marking :
PCA
EPC3117S(-LF)
Date Code
Pad
Layout
.070
(1.78)
0-8
.008/.012
(.203/.304)
.003/.010
(.076/.254)
Voltage
(V)
PCA
Part
Number
EPC3117S-1(-LF)
EPC3117S-2(-LF)
*EPC3117S-3(-LF)
*EPC3117S-4(-LF)
EPC3117S-5(-LF)
EPC3117S-6(-LF)
EPC3117S-7(-LF)
EPC3117S-8(-LF)
Primary
OCL
(H Typ.)
150
375
375
375
375
375
150
375
375
375
@ 100 KHz, 0.1 Vrms
75
75
75
75
80
80
75
75
80
75
Duty Cycle
(%)
3.3
5
5
5
5
5
3.3
5
5
5
V in
5
5
10
10
12
24
5
5
12
15
V out
Output Center Tap
Output Center Tap
Voltage Doubler
Output Center Tap
Output Center Tap
Voltage Doubler
Voltage Doubler
Voltage Doubler
Voltage Doubler
Voltage Doubler
Rectification
(Half or Full Wave)
Connections
Turns
Ratio
(Pri. to Sec.)
1:1:2:2
1:1:1.3:1.3
1:1:1.3:1.3
1:1:2.67:2.67
1:1:3:3
1:1:3:3
1:1:1:1
1:1:.67:.67
1:1:1.5:1.5
1:1:2:2
Pri. :Sec.
7.1
11
11
11
11
11
7.1
11
11
11
ET
(V-Sec.)
@ 350 KHz
*.098 Max. (2.49) for EPC3117S-3/-4
{
{
Application
Connections : Output Center Tap as Common/Return Operating Temperature : -40C to +85C
Notes :
1. Assembly Process
(Solder Composition)
2. Peak Temperature Rating
3. Weight
4. Packaging Information
(Tube)
EPC3117S
SnPb
225C
(10 +2/-0) Seconds
TBD grams
TBD pcs / tube
EPC3117S-LF
Sn100
260C
(10 +2/-0) Seconds
TBD grams
TBD pcs / tube
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