100 BASE-T4
TRANSFORMERS
Electrical Specifications at 25 C
Designed for
Quad SMD Dual SMD
use with
24-Pin
16-Pin
Transceiver I.C.
Part. No.
Part. No.
T-15202
SEEQ
80C240P
Cypress
CY7C971
T-15203
T-15200S
T-15201S
o
Designed to provide isolation and impedance matching for 4
twisted pairs in a 100 Mbps Transmission over UTP-3 Cable.
IEEE 802.3 Compatible
Common Mode Choke available for improved EMI performance
OCL
Min.
(
µH
)
350
350
L
L
max.
(
µH
)
1.0
1.0
DCR
P
max.
(
Ω
)
0.5
1.0
C
w/w
max.
( pF )
14
10
Isolation
(V
RMS
)
1500
1500
Designed for popular 100Base-T4 transceiver chips
Turns
Ratio
+3%
1:2CT
2CT:1CT
Tape & Reel
Available
T-15202
Schematic Diagram
PRI
24
23
22
21
PRI
20
19
18
PRI
17
16
15
PRI
14
13
24-Pin SMD Package: T-15202, T-15203
Dimensions in Inches (mm)
0.700
(17.78)
MAX.
.526
(13.35)
1
2
SEC
3
4
5
SEC
6
7
8
SEC
9
10
11
SEC
12
.296
(7.52)
MAX.
T-15203
Schematic Diagram
PRI
24
23
22
21
PRI
20
19
18
PRI
17
16
15
PRI
14
13
.016
(0.41)
TYP.
.050
(1.27)
TYP.
.015
(0.38)
TYP.
.035
(0.89)
TYP.
.010
(0.25)
TYP.
.645 (16.39)
.622 (15.80)
1
3
2
SEC
4
5
6
SEC
7
9
8
SEC
10
11 12
SEC
24-Pin DIP Package: T-15200S & T-15201S
Dimensions in Inches (mm)
.505
(12.83)
MAX.
9
T-15200S
Schematic Diagram
PRI
16
15
14
13
12
11
PRI
10
9
T-15201S
Schematic Diagram
PRI
16
15
14
13
12
11
PRI
10
.285
(7.24)
MAX.
.205
(5.21)
MAX.
1
2
SEC
3
4
5
6
7
SEC
8
1
2
SEC
3
4
5
6
7
SEC
8
.016
(0.41)
TYP.
.050
(1.27)
TYP.
.015
(0.38)
TYP.
.025
(0.64)
TYP.
.010
(0.25)
TYP.
.380 (9.65)
.360 (9.14)
Impedance ( Ohms )
100 BASE-T4
COMMON MODE
CHOKE
Electrical Specifications at 25
o
C
Part
Number
F-1515
Turns
Ratio
+3%
1 :1
OCL
Min.
(
µH
)
36
L
L
max.
(
µH
)
0.2
DCR
P
max.
(
Ω
)
0.35
Impedance
Ω
(Min.)
2000 @ 30 Mhz
1500 @ 50 Mhz
1000 @ 70 Mhz
C
w/w
max.
( pF )
15
4000
Typical
3000
2000
Minimum
1000
Isolation
(V
RMS
)
500
0
10
20
40
60 80 100
Frequency ( MHz )
200
300
F-1515: 16-Pin SMD package
per T-15200S above.
F-1515
Schematic
Diagram
)RU FRPSOHWH GHWDLOV LQFOXGLQJ GRZQORDGDEOH
3') FDWDORJV DQG GDWD VKHHWV SOHDVH YLVLW
ZZZUKRPEXVLQGFRP
Specifications subject to change without notice.
For other values & Custom Designs, contact factory.
100BAST2 - 2/02
Rhombus
Industries Inc.
www.rhombus-ind.com
15801 Chemical Lane, Huntington Beach, CA 92649-1595
Tel: (714) 898-0960
•
Fax: (714) 896-0971
