Flyback Power Transformer
E L E C T R O N I C S I N C .
EPC3130-X
• Used in SMPS Flyback Topology
• Designed for use with Power Integration Chip
• Reinforced Insulation (Triple Insulated Wire)
• UL 94V-0 Recognized Components
• UL 1446 Class F Insulation System
• Very Low Core Loss
Electrical Parameters @ 25° C
PCA
Chipset
Voltage
Primary OCL
Current
Part Number
(Vdc)
(µH 10%)
(Amp.)
@ 10 KHz, 0.1 Vrms
V in
V out 1
V out 2
V out 3
Sec. 1
Sec. 2
Sec. 3
V out 4
Sec. 4
19
12
35
12
5
EPC3130-1
EPC3130-2
EPC3130-3
EPC3130-4
EPC3130-5
EPC3130-6
TOP249Y
TOP234Y
TOP247Y
TOP247Y
TOP244Y
Viper 100
120-375
120-375
120-375
120-375
120-375
120-395
19
12
35
24
24
24
15
15
15
15
15
13
273
490
342
466
466
256
N
N
1.8
1.9
1.0
2.0
1.0
1.8
1.8
1.9
1.0
0.1
0.8
1.8
.05
.05
.05
.05
.05
.05
N
N
N
N
.025
N
24
N
24
N
N
•
Switching Frequency : 132 KHz
•
Isolation : 4500 Vrms
•
Dielectric Rating
(Vrms)
1 sec. 4500 or 60 sec. 3750
Pri. to all Sec. Wdg’s & Core
1 sec. 4500 or 60 sec. 3750
Between Wdg’s to Core
Note : “N” equals Not Required/No Connection •
1 sec. 1500
Between Pri. Wdg & Bias
•
Schematic
12
Sec. 1
1
3
5
11
10
V in Pri.
Sec. 2
Sec. 4
9
8
7
Sec. 3
(Fb/Bias)
6
Shield is optional
Package
1.330 Max.
(33.78)
1.320 Typ.
(33.55)
12
1
7
6
.937
Max.
PCA
Suggested
Layout
1.00
(25.40)
EPC3130-X
Date Code
(23.80)
Pin 1
I.D.
.051
(1.30)
.200
(5.08)
1.00 Typ.
(25.40)
.200
.031 Sq.
(.800)
.138
(3.50)
(5.08)
Unless Otherwise Specified Dimensions are in Inches /mm
.010 /.25
Product performance is limited to specified parameters. Data is subject to change without prior notice.
CSC3130-X Rev. 7 9/27/04 FT
PCA ELECTRONICS, INC.
16799 SCHOENBORN ST.
NORTH HILLS, CA 91343
TEL: (818) 892-0761
FAX: (818) 894-5791
http://www.pca.com