EPC3127-x
EPC3127-x is Flyback Power Transformer manufactured by PCA ELECTRONICS.
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Flyback Power Transformer
ELECTRONICS INC.
- Used in SMPS Flyback Topology
- Designed for use with Power Integration Chip
- Reinforced Insulation (Triple Insulated Wire)
- UL 94V-0 Recognized ponents
- UL 1446 Class F Insulation System
- Very Low Core Loss
Electrical Parameters @ 25° C
PCA Part Number
Chipset
Voltage (Vdc) V in V out 1 V out 2 V out 3
Primary OCL (µH ± 10%) @ 10 KHz, 0.1 Vrms Sec. 1 3.0 2.0 2.0 1.2 2.0
Current (Amp.) Sec. 2 N N 2 N N Sec. 3 .05 .05 .05 .05 .05
Schematic
EPC3127-1 EPC3127-2 EPC3127-3 EPC3127-4
{
N TNY268P 120-375 5 1900 15 N TNY266P 120-375 5 1900 15 3.3 TOP232Y/TOP242Y 120-375 5 2400 15 N TOP244P 120-375 13.55 475 15 N TNY267 120-375 3.3 2800 15
- Switching Frequency : 132 KHz
- Isolation : 4500 Vrms
- Dielectric Rating (Vrms)
A A B A A
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
- 1 sec. 1500 Between Pri. Wdg & Bias
Schematic A
1 V in Pri. 2 Sec. 3 3 (Fb/Bias) 4 7 6 Sec. 2 5 8 Sec. 1 Pri. 2 Sec. 3 3 (Fb/Bias) 4 1
Schematic B
8 Sec. 1 7 6 Sec. 2 5
Package
.787 (20.00) .728 Max. (18.50) .552 Max. (14.00) .815 (20.70)
PCA EPC3127-X D.C.
.590 (15.00) .590 (15.00) .197 (5.00)
.138 (3.50)
.031 Ø (.800) .590 Typ. (15.00)
.063 (1.60) .590 Typ. (15.00)
.197 (5.00)
.051...
