more than you expect
Push-Pull
SwitchmodePower
Features
Design verified with Linear Tech
IC LT 1533
Economical, reliable surface
mount transformers and inductors
Core geometry provides shielding
for low switching noise
Manufactured with with UL94V-O
materials
Designed for pick and place appli-
cations
Compatible with solder reflow
process to 240°C
Applications
Ideal for use in DC/DC converter,
push-pull applications
DC/DC converters for personal,
industrial or test equipment
Coupled inductors may also be
used as flyback transformers and
power inductors
Low-power isolated power supplies
Push-Pull Transformers
Primary Secondary
Voltage Voltage Power Rat‐ V‐uSec Inductance
(Volts) ing (Watts) Rating
L
min
(uH)
Part Number (Volts)
30802R
5
12
1.8
29
230
30804R
5
15
1.8
31
300
30807R
5
5
1.8
89
300
30807R‐LF1
5
5
1.8
89
300
30812R
12
5
4.5
459
600
RoHS
NO
NO
NO
YES
NO
Mechanical Schematic
1
1
1
1
1
1
1
1
2
2
Push-Pull Inductors
DC Sat Cur‐
Inductance rent Rating
(A)
Part Number Lsat (uH)
30942R
500
0.25
30942R‐LF1
500
0.25
30943R
800
0.2
30944R
100
0.6
30944R‐LF1
100
0.6
30945R
33
1.5
RoHS
NO
YES
NO
NO
YES
NO
Mechanical Schematic
1
3
1
3
1
3
1
3
1
3
1
3
Wurth Electronics Midcom, Inc.
121 Airport Drive—PO Box 1330
Watertown, SD 57201
T: 605.886.4385 ~ 605.886.4486
www.we-online.com ~ email: sales@midcom-inc.com
F: 605.886.4486
www.we-online.com/midcom
midcom@we-online.com
26-Apr-10
1/1
more than you expect
Push-Pull
SwitchmodePower
Basic Application Drawing
Mechanical 1
Mechanical 2
Schematic 1
Schematic 2
Schematic 3
Wurth Electronics Midcom, Inc.
121 Airport Drive—PO Box 1330
Watertown, SD 57201
T: 605.886.4385 ~ 605.886.4486
www.we-online.com ~ email: sales@midcom-inc.com
F: 605.886.4486
www.we-online.com/midcom
midcom@we-online.com
26-Apr-10
2/1