Token Ring Transformers
IEEE 802.5 Compatible -- High Isolation
Single and Dual Low Profile Packages
Designed For IBM Token Ring Applications
Insertion Loss ..................... 0.5 dB max. at 10 MHz
Return Loss ............................ 20 dB min. at 5 MHz
Dielectric withstanding voltage ............... 500 Vrms
CMRR .................................... -60 dB min. at 1 MHz
Electrical Specifications at 25
O
C
OCL
Part
Turns
min.
Number
Ratio
(
µH
)
T-11200
T-11201
T-11202
T-11203
T-11204
T-11205
1:1:2:2
1:1:2:2
1:1:2:2
1:1:2:2
1:1:1:1
1:1:1:1
1000
1000
250
250
750
750
Primary
Primary
Secondary
C
W/W
max.
( pF )
15
15
15
15
25
25
L
L
max.
(
µH
)
.40
.40
.15
.15
.20
.20
Rise Time
max.
( ns )
15.0
15.0
15.0
15.0
5.0
5.0
Pri & Sec.
DCR max.
(
Ω
)
0.4 & 0.8
0.4 & 0.8
0.5 & 0.8
0.5 & 0.8
1.0 & 1.0
1.0 & 1.0
Secondary
Style
Single
Dual
Single
Dual
Single
Dual
Package
8-Pin
16-Pin
8-Pin
16-Pin
8-Pin
16-Pin
Token Ring Transformers - DIP / SMD Packages
Refer to Schematic Diagrams and General Parameters at top of page.
C
W/W
max.
( pF )
L
L
max.
(
µH
)
Rise Time
max.
( ns )
Pri & Sec.
DCR max.
(
Ω
)
Electrical Specifications at 25
O
C
DIP
OCL
Part
Turns
min.
Number
Ratio
(
µH
)
Style
Package
8 &16 Pin DIP/SMD Packages
(Add
G
or
J
to P/N for SMD)
See pg. 40, fig. 4, 5 & 6
D
T-11280
T-11281
T-11282
T-11283
T-11284
T-11285
T-11206
T-11208
T-11210
T-11212
1:1:2:2
1:1:2:2
1:1:2:2
1:1:2:2
1:1:1:1
1:1:1:1
1:1:2:2
1:1:2:2
1:1:1:1
1:1:1:1
1000
1000
250
250
750
750
60
60
60
60
15
15
15
15
25
25
14
14
14
14
.40
.40
.15
.15
.20
.20
.30
.30
.30
.30
15.0
15.0
15.0
15.0
5.0
5.0
3.0
3.0
3.0
3.0
0.4 & 0.8
0.4 & 0.8
0.5 & 0.8
0.5 & 0.8
1.0 & 1.0
1.0 & 1.0
0.2 & 0.4
0.2 & 0.4
0.2 & 0.2
0.2 & 0.2
Single
Dual
Single
Dual
Single
Dual
Single
Dual
SIngle
Dual
8-Pin
16-Pin
8-Pin
16-Pin
8-Pin
16-Pin
8-Pin
16-Pin
8-Pin
16-Pin
SMD versions
available on
Tape & Reel
G
J
Specifications subject to change without notice.
For other values & Custom Designs, contact factory.
TOK - 7/97
Rhombus
Industries Inc.
36
15801 Chemical Lane, Huntington Beach, CA 92649-1595
Tel: (714) 898-0960
•
Fax: (714) 896-0971
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