AS8426-A Datasheet, PDF (1/2 Pages) Coilcraft lnc. – ADSL Transformers

Document 222-1
ADSLTransformers 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)
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%
Leakage
inductance
max (µH)
DCR max (Ohms)
Chip side
Line side
6.5 0.130 (10-8), 0.095 (9-7) 0.200 (1-3, 2-4)
6.5 0.130 (10-8), 0.095 (9-7) 0.200 (1-3, 2-4)
5.0 0.375 (10-8), 0.310 (9-7) 0.425 (1-3, 2-4)
5.0 0.375 (10-8), 0.310 (9-7) 0.415 (1-3, 2-4)
18 2.42 (10-6), 1.87 (9-7) 2.53 (1-4, 2-5)
18 2.42 (10-6), 1.87 (9-7) 2.53 (1-4, 2-5)
18
0.800 (1-4)
3.75 (10-7)
18
0.800 (1-4)
3.75 (10-7)
Part
number
AS8426-A
AS8446-A
AS8696-B
AS8697-B
AS8425-A
AS8397-B
AS8578-A
AS8579-A
Dielectric
strength
(V)
3000
2300
3000
2300
1875
1875
1875
1875
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)
1. All electrical specifications referenced to line side.
2. Operating temperature range -40°C to +85°C.
3. Electrical specifications at 25°C.
THD
@ 20 kHz
typ (dB)
-77
-77
-84
-84
-92
-92
-85
-85
Designed
to meet
UL 1950
UL 1950
UL 1950
UL 1950
UL 1950
UL 1950
UL 1950
UL 1950
© Coilcraft, Inc. 2007
Specifications subject to change without notice.
Please check our website for latest information. Document 222-1 Revised 1/11/01