RHOMBUS-IND T-1107

Pulse Transformers
for Maxim "MAX253"
RS-485 Data Interface Applications
Thru-hole & Surface Mount
Custom Designs and Variations on
electrical data available
Electrical Specifications 1,2 at 25OC
Turns
T6-Pkg.
Wide-SMD
Ratio
Part
Part
(+5%)
Number
Number
T-941
T-942
T-943
T-944
T-945
T-971
T-972
T-973
T-974
T-975
OCL
min.
( mH )
1CT:1
1CT:1.3CT
1CT:2.1CT
1CT:5CT
1CT:1CT
1800 VRMS Minimum Isolation
PRI-SEC
CW/W max.
( pF )
1.2
1.2
0.8
1.2
1.2
45
45
35
45
45
*
1. Primary Pins for all parts listed are pins 1-5.
2. Temp range is -40OC to +85OC
Leakage
LL max.
( µH )
Pri. DCR
max.
(Ω )
Sec. DCR
max.
(Ω )
ET *
min.
(V-µS)
Schem.
Style
0.6
0.6
0.4
0.6
0.6
0.7
0.7
0.6
0.7
0.7
0.7
0.9
1.4
3.5
0.7
20
20
12
20
20
E
C
C
C
C
Due to High ET Product, these parts are recommended
for all applications where FS is High, Open, or Low.
Physical Dimensions
inches (mm)
"T6" Package
T-941 thru T-945
.350
(8.89)
.500
(12.70)
MAX.
MAX.
Wide-SMD Package
T-971 thru T-975
.410
(10.41)
.410
(10.41)
MAX.
MAX.
.260
(6.60)
.250
(6.35)
MAX.
MAX. .300
.080
(2.03)
.120
(3.05)
(7.62)
MAX.
.340
(8.64)
MIN.
.100
(2.54)
Schematic
"E"
Schematic
"C"
RS-232 Data Interface Applications
SMD available
on Tape & Reel
.400
(10.16)
.020 DIA.
(0.51)
.020
(0.51)
.100
(2.54)
TYP.
TYP.
.040
(1.02)
.010
(0.25)
TYP.
.510 (12.95)
.480 (12.19)
TYP.
TYP.
TYP.
Electrical Specifications 1,2 at 25OC
Turns
DIP
SMD
Ratio
Part
Part
(+5%)
Number
Number
T-1106
T-1107
T-1108
T-1110
T-1106G
T-1107G
T-1108G
T-1110G
1CT:1
1CT:1.3CT
1CT:2.1CT
1CT:1CT
OCL
min.
( mH )
PRI-SEC
CW/W max.
( pF )
Leakage
LL max.
( µH )
Pri. DCR
max.
(Ω )
Sec. DCR
max.
(Ω )
ET **
min.
(V-µS)
Schem.
Style
1.2
1.2
0.8
1.2
60
60
50
60
0.8
0.8
0.6
0.8
0.8
0.8
0.7
0.8
0.8
1.0
1.6
0.8
12
12
8
12
E
C
C
C
1. Primary Pins for all parts listed are pins 1-5.
2. Temp range is -40OC to +85OC
** Due to lower ET Product, these parts are only recommended
for applications where FS is High or Open.
6-Pin DIP Package
T-941 thru T-945
.285
(7.24)
.315
(8.00)
MAX.
.012 .120
(0.30) (3.05)
TYP.
.020
(0.51)
MIN.
.100
(2.54)
.200
(5.08)
MAX.
.010
(0.25)
.010
(0.25)
.300
(7.62)
.365
(9.27)
.270
(6.86)
MAX.
.008 R
(0.20)
MAX.
TYP.
.315
(8.00)
MAX.
.205
(5.21)
.050
(1.27)
6-Pin SMD Package
T-1106G thru T-1110G
SMD available
on Tape & Reel
TYP.
.038
(0.96)
TYP.
.100
(2.54)
TYP.
MAX.
.020
(0.38)
TYP.
.286
(7.27)
TYP.
.425 (10.80)
.405 (10.29)
TYP.
TYP.
Specifications subject to change without notice.
Rhombus
Industries Inc.
For other values & Custom Designs, contact factory.
35
MAXIM - 4/99
15801 Chemical Lane, Huntington Beach, CA 92649-1595
Tel: (714) 898-0960 • Fax: (714) 896-0971