Photoflash Flyback Transformer
E L E C T R O N I C S I N C .
EPC3225G-X
• Used as Flyback Transformer in High Voltage Photoflash Capacitor Charger
• Designed for use with PNP or NPN Transistor
• Operating Temperature : -40°C to +85°C
• UL 94V-0 Recognized Components
• UL 1446 Class B Insulation System
• Very Low Core Loss
• Isolation : 500 Vrms
Electrical Parameters @ 25° C
Voltage
Primary OCL
@ 0Adc
DCR
PCA
Primary Peak
Turns
Schematic
Transistor
(Vdc)
(Ω Typ.)
Part Number
Current
Ratio
Design
(µH Typ.)
(Amp)
Pri.
.045
.045
Sec.1
301
301
V in
1.5
1.5
V Out
320
320
Pri:Sec1:Sec2
1:240:2.4
@ 100 KHz, 0.1 Vrms
2.5
2.5
A
B
EPC3225G-1
EPC3225G-2
PNP or NPN
PNP or NPN
22.3
22.3
1:240:N
•
N : Not Required/No Connection •
Package
Sample Circuit
Schematic A
8
.319
Typ.
Sec.1
7
1
Pin 1
I.D.
(8.10)
D1
Pri.
3
6
T1
.401
1
4
8
5
(-320V)
-
Sec.2
Typ.
5
.236
(10.20)
(6.00)
+
.490
.020
(10.90)
(.500)
D2
.079
+
-
(2.00)
1.5V
Side Marking :
.193
.012
R
Schematic B
PCA EPC3225G-X
D.C.
(4.90)
(.300)
0°-8°
SW1
1
8
Pri.
Sec.1
.026
.008
(.203)
3
7
(.650)
.453
(11.50)
Pad
Layout
.079
(2.00)
.059
(1.50)
.358
.067
(9.10)
(1.70)
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.
CSC3225G-X Rev. 2 5/23/05 FT
PCA ELECTRONICS, INC.
16799 SCHOENBORN ST.
NORTH HILLS, CA 91343
TEL: (818) 892-0761
FAX: (818) 894-5791
http://www.pca.com