15801 Chemical Lane, Huntington Beach, CA 92649
Phone: (714) 898-0960
FAX: (714) 896-0971
Rhombus
Transformers & Magnetic Products
Industries Inc.
www.rhombus-ind.com
PARAMETER UNITS
Turns Ratio 1 : 1 +
1%
Line Impedance 143 Ω
Inductance (Line Side) 40 Min mH
Leakage Inductance 10 kHz - 0.5V
RMS
40 Max. µH
Primary DC Resistance 2.9 Typ. Ω
Secondary DC Resistance 5.9 Typ. Ω
Frequency Response 1.0 Max. dB
1 kHz - 200 kHz
Insertion Loss @ 10kHz 0.5 Typ. dB
Isolation (HI-POT) 1875 V
RMS
Primary DC 0 mA
Return Loss @ 1 kHz - 200 kHz 15 Typ. dB
Longitudinal Balance 200 - 1000 Hz 40 Typ. dB
15 kHz 35 Typ. dB
Interwinding Capacitance 65 Max. pF
10 kHz - 1 V
RMS
4/15/98
SCHEMATIC DIAGRAM:
T-998
DDS Aplications
Pulse Transformers
1
3
5
10
8
6
SecondaryPrimary
PIN POSITION GRID 0.100 (2.54)
HOLES FOR BOBBIN PINS
Designed to meet the requirements
of Bellcore TR-NWT-000499,
Synchronous Digital Data
Interface-64 Kbps and Subrates
Recomended for use with level
one LXT441
Custom versions of this
transformer are available.
A Surface Mount version of this
transformer is available
Compatible with Level One
transceiver ICs
Pin Diameter is 0.025
(
0.64
)
.100
(2.54)
TYP.
.160
(4.06)
TYP.
.545
(13.84)
MAX.
.6 25
(15.88)
.118
(3.00)
.048
(1.22)
.6 25
(15.88)
Bottom
View
1
5
610
Physical Dimensions
in inches (mm)