Document 222-1
ADSL Transformers
For Alcatel, Motorola
and TI chip sets
This product is not RoHS-compliant. Contact Coilcraft
for current status or possible alternatives.
These transformers have been designed to provide
optimum performance with the ADSL chip sets from a
variety of leading manufacturers.
They feature a compact size, minimum DC resistance
and very low leakage inductance. Primary inductance is
stable from -40°C to +85°C and the longitudinal balance
is optimized for the best overall performance at the
ADSL transmission speed. Most parts have been de-
signed to meet UL 1950 requirements.
For free evaluation samples or to discuss custom de-
signs, please contact Coilcraft.
Part
number
AS8426-A
AS8446-A
AS8696-B
AS8697-B
AS8425-A
AS8397-B
AS8578-A
AS8579-A
Style
Chip set
Line side
inductance
(mH)
Leakage
inductance
max (µH)
6.5
6.5
5.0
5.0
18
18
18
18
DCR max (Ohms)
Chip side
Line side
0.200 (1-3, 2-4)
0.200 (1-3, 2-4)
0.425 (1-3, 2-4)
0.415 (1-3, 2-4)
2.53 (1-4, 2-5)
2.53 (1-4, 2-5)
3.75 (10-7)
3.75 (10-7)
Leaded
Alcatel DynaMiTe MTK-20140
0.410 ± 10%
SMT
Alcatel DynaMiTe MTK-20140
0.410 ± 10%
Leaded
Alcatel DynaMiTe MTK-20140
0.442 ± 5%
SMT
Alcatel DynaMiTe MTK-20140
0.442 ± 5%
Leaded Motorola MC145660/MS143462SK 3.96 ± 5%
SMT Motorola MC145660/MS143462SK 3.96 ± 5%
Leaded
TI TNETD4000R/3000R
1.5 ± 5%
SMT
TI TNETD4000R/3000R
1.5 ± 5%
Dielectric
strength
(V)
3000
2300
3000
2300
1875
1875
1875
1875
0.130 (10-8), 0.095 (9-7)
0.130 (10-8), 0.095 (9-7)
0.375 (10-8), 0.310 (9-7)
0.375 (10-8), 0.310 (9-7)
2.42 (10-6), 1.87 (9-7)
2.42 (10-6), 1.87 (9-7)
0.800 (1-4)
0.800 (1-4)
THD
@ 20 kHz
typ (dB)
-77
-77
-84
-84
-92
-92
-85
-85
Part
number
AS8426-A
AS8446-A
AS8696-B
AS8697-B
AS8425-A
AS8397-B
AS8578-A
AS8579-A
Turns ratio
line:chip
2:1
2:1
1:1
1:1
1.2:1
1.2:1
1.42:1
1.42:1
Capacitance
max (pF)
N/A
N/A
N/A
N/A
N/A
N/A
35.0
35.0
Longitudinal
balance
min (dB)
45 (30 kHz - 1.1 MHz)
45 (30 kHz - 1.1 MHz)
45 (30 kHz - 1.1 MHz)
45 (30 kHz - 1.1 MHz)
40 (20 kHz - 1.1 MHz)
40 (20 kHz - 1.1 MHz)
40 (20 kHz - 1.1 MHz)
40 (20 kHz - 1.1 MHz)
Designed
to meet
UL
UL
UL
UL
UL
UL
UL
UL
1950
1950
1950
1950
1950
1950
1950
1950
1. All electrical specifications referenced to line side.
2. Operating temperature range -40°C to +85°C.
3. Electrical specifications at 25°C.
Specifications subject to change without notice.
Please check our website for latest information.
Document 222-1
Revised 1/11/01
© Coilcraft, Inc. 2007
COILCRAFT [ Coilcraft lnc. ]
