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 LL max. ( µH ) 1.0 1.0 DCRP max. (Ω) 0.5 1.0 Cw/w max. ( pF ) 14 10 Isolation (VRMS) 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)
M AX.
.526 (13.35)
1
2 SEC
3
4
5 SEC
6
7
8 SEC
9
10
11 SEC
12
.296 (7.52)
M AX.
T-15203 Schematic Diagram
PRI 24 23 22 21 PRI 20 19 18 PRI 17 16 15 PRI 14 13
.016 (0.41)
T YP.
.050 (1.27)
T YP.
.015 (0.38)
T YP.
.035 (0.89)
T YP.
.010 (0.25)
T YP.
.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)
M AX.
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)
M AX.
.205 (5.21)
M AX.
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 25o C Part Number F-1515 Turns Ratio +3% 1 :1 OCL Min. ( µH ) 36 LL max. ( µH ) 0.2 DCRP max. (Ω) 0.35
Impedance Ω (Min.) 2000 @ 30 Mhz 1500 @ 50 Mhz 1000 @ 70 Mhz Cw/w max. ( pF ) 15
4000 Typical 3000
2000 Minimum 1000
Isolation (VRMS) 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
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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
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