Rhombus F-1400 Common mode chokes for telecom application Datasheet

Common Mode Chokes
Schematic
for Telecom Applications
Designed for 4-Wire Links ISDN S / T1
For EMI Reduction - Filters Common Mode Noise
500 VRMS Minimum Isolation Between Windings
Frequencies 100 kHz to 200MHz
Low Frequency Chokes
Electrical Specifications at 25OC
LF Choke
OCL
LL sec
Part
min.
max.
Number
( mH )
( µH )
CW/W
max.
( pF )
DCR
max.
(Ω)
ZOC min.
( kΩ )
150 kHz
ZOC min.
( kΩ )
300 kHz
ZOC min.
( kΩ )
500 kHz
ZOC min.
( kΩ )
1MHZ
F-1400
6.0
35.0
22
1.4
5.5
8.0
8.0
9.0
F-1401
4.0
30.0
10
0.7
3.3
6.0
8.0
11.0
F-1402
4.0
0.7
40
0.7
3.3
6.0
8.0
11.0
F-1403
1.0
10.0
10
0.7
0.9
1.6
2.3
3.3
High Frequency Chokes
Electrical Specifications at 25OC
HF Choke
Part
Number
OCL
min.
( µH )
LL sec
max.
( µH )
CW/W
max.
( pF )
DCR
max.
(Ω)
ZOC min.
( kΩ )
10 MHz
ZOC min.
( kΩ )
30 MHz
ZOC min.
( kΩ )
70MHz
ZOC min.
( kΩ )
100MHZ
F-1600
24.0
0.20
15
0.30
0.9
1.60
1.15
0.80
F-1601
16.0
0.20
12
0.30
0.7
1.35
1.05
0.65
F-1602
8.0
0.20
10
0.25
0.55
1.10
1.00
0.52
*OCL,
LAN Chokes
LEAKElectrical Specifications at 25 C
AGE
Turns
OCL
Part
Ratio
min.
Number INDU
( µH )
F-135X Schematic
O
LL sec
max.
( µH )
CW/W
max.
( pF )
DCR
max.
(Ω)
HI-POT
min.
( VRMS )
Package
Style
F-1351
1:1:1:1
18
.3
65
25
500
8 Pin
F-1352
1:1:1:1
36
.3
200
25
500
8 Pin
Impedance Curve for F-1351 / 1352
4000
Typical
3000
Z
2000
(Ω)
Minimum
1000
0
10
20
40
60 80 100
Frequency ( MHz )
Specifications subject to change without notice.
Rhombus
Industries Inc.
200
300
300
For other values & Custom Designs, contact factory.
31
CHOKES -7/97
15801 Chemical Lane, Huntington Beach, CA 92649-1595
Tel: (714) 898-0960 • Fax: (714) 896-0971