
DC-DCConverter
Transformers
SURFACEMOUNT
PICOsurfacemountunitsutilizematerialsandmethodstowithstandextremetemperaturesofvaporphase,I.R.,andotherreflowprocedureswithoutdegradationof
electricalormechanicalcharacteristics.
Theseunitscanbeusedasselfsaturatedorsquarewavedriven

Inputvoltagesof:5V,12V,24Vand48V

Outputvoltagesuptp300Volts

Powerlevelsupto40Watts

Allunitscanbesuppliedwithhigherorloweroutputvoltages.
Delivery-stocktooneweekforsampleorders.
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1
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DCCONVERTERTRANSFORMERS
12/18/2007
http://www.picoelectronics.com/surface/pe020_21.htm?PartNo=33666



BOTTOMVIEW
Largersizedrawing
Size

Max.
Height

A

B

C

D

E

F

1

.310
(7.87)

.400
(10.16)

.050
(1.27)

.075
(1.91)

.020
(.51)

.520
(13.21)

.012
(.30)

2

.365
(9.27)

.495
(12.57)

.055
(1.40)

.095
(2.41)

.020
(.51)

.615
(15.62)

.012
(.30)

3

.460
(11.68)

.615
(15.62)

.075
(1.90)

.125
(3.18)

.027
(.69)

.735
(18.67)

.020
(.51)

INPUT5VOLTS
Part
Number

D.C.OUTVOLTS

MAX.POWEROUT

APPROX.SWITCHFREQ.

SIZE

***
PRICE
1-9

Bridge

Full
Wave

Dual
Bridge

-55ºCto
+105ºC
-55ºCto
+
70ºC
Self-
Saturated

Square-Wave
Driven**

31420
10
5
±5
1.5W
3W
15K
30KTO60K
1
58.35
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DCCONVERTERTRANSFORMERS
12/18/2007
http://www.picoelectronics.com/surface/pe020_21.htm?PartNo=33666

31440
31460
31480
31500

12
28
48
100

6
14
24
50

±6
±14
±24
±50
1.5W
1.5W
1.5W
1.5W

3W
3W
3W
3W

15K
15K
20K
20K

30KTO60K
30KTO60K
40KTO60K
40KTO60K

1
1
1
1

58.35
58.35
58.35
58.35

32505
32525
32545
32565
32585
32588
32591
32594

10
12
28
48
100
150
200
300

5
6
14
24
50
75
100
150

±5
±6
±14
±24
±50
±75
±100
±150
3W
3W
3W
3W
3W
3W
3W
3W

4.5W
4.5W
4.5W
4.5W
4.5W
-
-
-

15K
15K
15K
20K
20K
10K
10K
10K

30KTO60K
30KTO60K
30KTO60K
40KTO60K
40KTO60K
30KTO60K
30KTO60K
30KTO60K

2
2
2
2
2
2
2
2

55.35
58.35
58.35
58.35
58.35
67.24
67.24
67.24

33503
33523
33543
33563
33583
33586
33589
33592

10
12
28
48
100
150
200
300

5
6
14
24
50
75
100
150

±5
±6
±14
±24
±50
±75
±100
±150
5W
5W
5W
5W
5W
5W
5W
5W

7.5W
7.5W
7.5W
7.5W
7.5W
-
-
-

10K
10K
10K
10K
10K
10K
10K
10K

20KTO50K
20KTO50K
20KTO50K
20KTO50K
20KTO50K
30KTO60K
30KTO60K
30KTO60K

3
3
3
3
3
3
3
3

58.35
58.35
58.35
58.35
58.35
61.11
61.11
61.11

**LowerSwitchingFrequencymaybeusedatloweroutputpower.
INPUT12VOLTS
Part
Number

D.C.OUTVOLTS

MAX.POWEROUT

APPROX.SWITCHFREQ.

SIZE

***
PRICE
1-9

Bridge

Full
Wave

Dual
Bridge

-55ºCto
+105ºC
-55ºCto
+
70ºC
Self-
Saturated

Square-Wave
Driven**

31520
31540
31560
31580
31600

12
24
28
48
100

6
12
14
24
50

±6
±12
±14
±24
±50
1.5W
1.5W
1.5W
1.5W
1.5W

3W
3W
3W
3W
3W

15K
15K
15K
20K
20K

30KTO60K
30KTO60K
30KTO60K
40KTO60K
40KTO60K

1
1
1
1
1

58.35
58.35
58.35
58.35
58.35

32605
32625
32645
32665
32685
32688
32691
12
24
28
48
100
150
200
6
12
14
24
50
75
100
±6
±12
±14
±24
±50
±75
±100
3W
3W
3W
3W
3W
3W
3W
4.5W
4.5W
4.5W
4.5W
4.5W
-
-
15K
15K
15K
20K
20K
10K
10K
30KTO60K
30KTO60K
30KTO60K
40KTO60K
40KTO60K
30KTO60K
30KTO60K
2
2
2
2
2
2
2
58.35
58.35
58.35
58.35
58.35
67.24
67.24
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DCCONVERTERTRANSFORMERS
12/18/2007
http://www.picoelectronics.com/surface/pe020_21.htm?PartNo=33666


32694

300

150

±150
3W

-

10K

30KTO60K

2

67.24

33603
33623
33643
33663
33666
33669
33672

12
28
48
100
150
200
300

6
14
24
50
75
100
150

±6
±14
±24
±50
±75
±100
±150
5W
5W
5W
5W
5W
5W
5W

7.5W
7.5W
7.5W
7.5W
-
-
-

15K
15K
20K
20K
10K
10K
10K

30KTO60K
30KTO60K
40KTO60K
40KTO60K
30KTO60K
30KTO60K
30KTO60K

3
3
3
3
3
3
3

58.35
58.35
58.35
58.35
67.24
67.24
67.24

**LowerSwitchingFrequencymaybeusedatloweroutputpower.
INPUT24VOLTS
Part
Number

D.C.OUTVOLTS

MAX.POWEROUT

APPROX.SWITCHFREQ.

SIZE

***
PRICE
1-9

Bridge

Full
Wave

Dual
Bridge

-55ºCto
+
105ºC
-55ºCto
+
70ºC
Self-
Saturated

Square-Wave
Driven**

31620
31640
31660
31680

10
28
48
100

5
14
24
50

±5
±14
±24
±50
1.5W
1.5W
1.5W
1.5W

3W
3W
3W
3W

15K
15K
20K
20K

30KTO60K
30KTO60K
40KTO60K
40KTO60K

1
1
1
1

58.35
58.35
58.35
58.35

32705
32725
32745
32765
32768
32771
32774

10
28
48
100
150
200
300

5
14
24
50
75
100
150

±5
±14
±24
±50
±75
±100
±150
3W
3W
3W
3W
3W
3W
3W

4.5W
4.5W
4.5W
4.5W
-
-
-

15K
15K
20K
20K
10K
10K
10K

30KTO60K
30KTO60K
40KTO60K
40KTO60K
30KTO60K
30KTO60K
30KTO60K

2
2
2
2
2
2
2

58.35
58.35
58.35
58.35
67.24
67.24
67.24

33683
33703
33723
33743
33746
33749
33752

10
28
48
100
150
200
300

5
14
24
50
75
100
150

±5
±14
±24
±50
±75
±100
±150
5W
5W
5W
5W
5W
5W
5W

7.5W
7.5W
7.5W
7.5W
-
-
-

15K
15K
20K
20K
10K
10K
10K

30KTO60K
30KTO60K
40KTO60K
40KTO60K
30KTO60K
30KTO60K
30KTO60K

3
3
3
3
3
3
3

58.35
58.35
58.35
58.35
67.24
67.24
67.24

**LowerSwitchingFrequencymaybeusedatloweroutputpower.
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7
DCCONVERTERTRANSFORMERS
12/18/2007
http://www.picoelectronics.com/surface/pe020_21.htm?PartNo=33666


INPUT48VOLTS
Part
Number

D.C.OUTVOLTS

MAX.POWEROUT

APPROX.SWITCHFREQ.

SIZE

***
PRICE
1-9

Bridge

Full
Wave

Dual
Bridge

-55ºCto
+
105ºC
-55ºCto
+
70ºC
Self-
Saturated

Square-Wave
Driven**

31700
31720
31740
31760

24
48
100
150

12
24
50
75

±12
±24
±50
±75
1.5W
1.5W
1.5W
1.5W

3W
3W
3W
3W

15K
20K
20K
20K

30KTO60K
40KTO60K
40KTO60K
40KTO60K

1
1
1
1

58.35
58.35
58.35
58.35

32785
32805
32825
32845
32848
32851

24
48
100
150
200
300

12
24
50
75
100
150

±12
±24
±50
±75
±100
±150
3W
3W
3W
3W
3W
3W

4.5W
4.5W
4.5W
4.5W
4.5W
4.5W

15K
20K
20K
20K
10K
10K

30KTO60K
40KTO60K
40KTO60K
40KTO60K
30KTO60K
30KTO60K

2
2
2
2
2
2

58.35
58.35
58.35
58.35
67.24
67.24

33763
33783
33803
33823
33826
33829

24
48
100
150
200
300

12
24
50
75
100
150

±12
±24
±50
±75
±100
±150
5W
5W
5W
5W
5W
5W

7.5W
7.5W
7.5W
7.5W
-
-

15K
20K
20K
20K
10K
10K

30KTO60K
40KTO60K
40KTO60K
40KTO60K
30KTO60K
30KTO60K

3
3
3
3
3
3

67.24
67.24
67.24
67.24
67.24
67.24

**LowerSwitchingFrequencymaybeusedatloweroutputpower.
***DiscountPrices:
1-9Net;
10-24less10%;
25-49less16%;
50-99less23%;
100-499less30%
OrderingInstructions:
Nominimum.
Net30daysF.O.B.Pelham,NY
Features
Unitscanbeusedasself-saturatingorforlinearswitchingapplications.
Operationoverambienttemperaturerangefrom-55ºCto+105ºC.Allunits
manufacturedtotherequirementsofMIL-PRF-27,Grade5,ClassS.

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DCCONVERTERTRANSFORMERS
12/18/2007
http://www.picoelectronics.com/surface/pe020_21.htm?PartNo=33666
ClickHereforEquivalentPlug-inVersionofTheseUnits
Allunitscanbesuppliedwithhigherorlowersecondaryvoltagesatthesame
powerlevel.

Secondarycanbeconnectedforfull-wavebridgeordualbridge.
LargerSchematic
LargerSchematic
RECOMMENDEDLANDPATTERN
DIMENSIONS
RECOMMENDEDLANDPATTERN
DIMENSIONS
RECOMMENDEDLANDPATTERN
DIMENSIONS
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DCCONVERTERTRANSFORMERS
12/18/2007
http://www.picoelectronics.com/surface/pe020_21.htm?PartNo=33666
Forimmediateengineeringassistanceortoplaceanorder:
CallTollFree:800-431-1064
PICOElectronics,Inc.
143SparksAve.Pelham,NY10803-1837
Tel:914-738-1400orFax:914-738-8225
GobacktoSurfaceMountTransformersandInductorsmenu
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12/18/2007
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