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EPC3127-X Datasheet, PDF (1/1 Pages) PCA ELECTRONICS INC. – Flyback Power Transformer
Flyback Power Transformer
ELECTRONICS INC.
EPC3127-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
Part
Number
{ EPC3127-1
EPC3127-2
EPC3127-3
EPC3127-4
Chipset
Voltage
(Vdc)
Primary
OCL
(µH ± 10%)
V in
V out
V out
V out
@ 10 KHz,
1
2
3
0.1 Vrms
TNY268P
120-375
5
N
15
TNY266P
120-375
5
N
15
TOP232Y/TOP242Y 120-375
5
3.3
15
TOP244P
120-375 13.55
N
15
TNY267
120-375
3.3
N
15
1900
1900
2400
475
2800
• 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 Sec. Wdg’s to Core
• Note : “N” means Not Required/No Connections •
Current
(Amp.)
Sec.
1
3.0
2.0
2.0
1.2
2.0
Sec.
2
N
N
2
N
N
Sec.
3
.05
.05
.05
.05
.05
Schematic
A
A
B
A
A
1 sec. 1500
Between Pri. Wdg & Bias
Schematic A
1
V in Pri.
2
Sec. 3 3
(Fb/Bias)
4
8
Sec. 1
7
6
Sec. 2
5
Schematic B
1
Pri.
2
Sec. 3 3
(Fb/Bias)
4
8
Sec. 1
7
6
Sec. 2
5
.138
(3.50)
.787
(20.00)
.728
Max.
(18.50)
.590
Typ.
(15.00)
.031 Ø
(.800)
Package
.552
Max.
(14.00)
.815
(20.70)
PCA
EPC3127-X
D.C.
.063
(1.60)
.590
Typ.
(15.00)
.197
(5.00)
.590
(15.00)
.197
(5.00)
.051
(1.30)
.590
(15.00)
PCA ELECTRONICS, INC.
16799 SCHOENBORN ST.
NORTH HILLS, CA 91343
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.
CSC3127-X Rev. 5 1/3/05 FT
TEL: (818) 892-0761
FAX: (818) 894-5791
http://www.pca.com