Print Data Sheet

RoHS
Single Port Isolation Transformer
AT3974
10/100 Base-T for Ethernet Applications
Standard Operating Temperature range: -0ºC to +70ºC
Maximum reflow temperature: 250ºC/-5ºC for 20-40 seconds
(Refer to IPC/JEDEC J-STD-02C Standard)
Electrical Specificat ions @25oC
1:1
98
(1-3) TO (16-4) (6-8) TO (11-9)
42
(1-3), (16-14)
Isolation Voltage
(Vrms MIN)
(6-8), (11-9) (15-16), (16-14) (10-11), (10-9)
0.6
0.6
0.20
12
8
DC Resistance
@ 10KHz, 20mV
(Ω Max)
(6-8), (11-9 short)
0.30
15- (16-14)
( 11 - 9 )
70
(1-3)
1:2
Leakage Inductance
@ 100KHz ,20mV
(uH Max)
(1-3), (16-14 short)
CW/W
@ 100KHz, 20mV
(pF max)
LP
@ 100KHz , 20mV
( uH min )
Turn Ratio
@ 10KHz, 20mV
(±2%)
(1-3) TO (16-4)
(6-8) TO (11-9)
0.6
1500
0.6
All specifications subject to change without notice.
MECHANICAL
PAD A
Uint : mm/inch
A=12.80/0.504
PAD B
B=6.80/0.268
C=6.20 max/0.244 max
PAD C
B
PAD D
D=8.89/0.350
E=1.27/0.050
PAD E
SUGGESTED PCB PAD LAYOUT
F=0.25/0.010
G=9.40/0.370
H=0.25/0.010
I=0.90/0.035
H
C
F
I
E
0~8゜
PDA-A=9.53/0.375
PDA-B=1.27/0.050
PDA-C=10.50/0.413
PDA-D=1.70/0.067
PDA-E=0.76/0.030
G
D
16
SCHEMATICS
1
1CT:1CT
16
2
3
6
1CT:2CT
14
15
11
7
9
10
8
949-356-1780
ALLIED COMPONENTS INTERNATIONAL
03/26/2014
15
www.alliedcomponents.com