Current Sense Transformers
E L E C T R O N I C S I N C .
EPC3108G-XXX
• Designed for Switching Supply-Current Sense Applications
• UL1446 Class B Insulating System
• UL94V0 Recognized Materials
• Class B 130°C Insulation System
• Operating Temperature : -25°C to +105°C
• Optimal Performance at 250 KHz and above
Electrical Parameters @ 25° C
PCA
Part
Vt
Turns
Ratio
Inductance
Secondary
Primary
Insulation
Resistance
(meg Ω Min.)
(V-µSec. Max.)
(µH Min.)
DCR
(Amps Max.)
Number
(Pri. to Sec.)
@ 10 KHz
(Ω Max.)
92.5
75.0
62.5
52.5
27.5
30.0
22.5
EPC3108G-125
EPC3108G-100
EPC3108G-85
EPC3108G-70
EPC3108G-50
EPC3108G-40
EPC3108G-30
1:125
1:100
1:85
1:70
1:50
1:40
1:30
3000
2000
1430
980
7.70
6.20
5.30
4.75
2.50
1.35
1.00
6.0
6.0
6.0
6.0
6.0
6.0
6.0
10
10
10
10
10
10
10
500
320
180
•
Note : Clamp cover is optional •
Package
Application Circuit
Power Transformer
.210
Max.
(5.33)
Ipk
Isecondary
N
Vref
1T
Copper Plate
RT
.073
.330 Max.
(1.85)
(8.50)
D
.260 .015
Current Sense Transformer
V Ref. = Ipk RT/N
(.660 .380)
G
S
Recommended Pad Layout
.020
(.500)
.063
8
7
(1.60)
.098
3
2
1
4
(2.50)
.027 (.700)
Schematic
5
6
.106
(2.70)
8
7
6
.073
(1.85)
.047
4
(1.20)
1:N
.078
(2.00)
.118
.051
(1.30)
(3.00)
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.
CSC3108G-XXX Rev. 1 5/9/05
PCA ELECTRONICS, INC.
16799 SCHOENBORN ST.
NORTH HILLS, CA 91343
TEL: (818) 892-0761
FAX: (818) 894-5791
http://www.pca.com