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Audio Transformers:

2 Ohm to 30K Ohm; 400Hz to 250KHz; 100 milliwatt at 1KHz

SURFACE MOUNT
PICO surface mount units utilize materials and methods to withstand extreme temperatures (220º C) of vapor phase, I.R., and other reflow procedures without degradation of electrical or mechanical characteristics.

Specifications

  • MIL-PRF-27: All units manufactured to MIL-PRF-27, Grade 5, Class S
  • FREQUENCY RESPONSE: ± 3db, 400 Hz-250 KHz at 1.0 Milliwatt. 
  • MAXIMUM DISTORTION: 5% with rated power level at 1 KHz and 400 Hz. 
  • DIELECTRIC STRENGTH: All units tested at 200 V RMS. 
  • INSULATION RESISTANCE: Greater than 10,000 Megohms at 300 V DC. 
  • WEIGHT: 1.5 Grams 
  • TERMINALS: Solderability per MIL-STD-202, Method 208.
  • THERMAL SHOCK: 25 Cycles, Method 107, MIL-STD-202, Test Condition -55º C to +130º C.
  • MOISTURE SENSITIVITY LEVEL : MSL3

Bottom View
Larger size drawing

Bottom View
Larger size drawing

 

 

Audio Transformers: 2 Ohm to 30K Ohm; 400Hz to 250KHz; 100 milliwatt at 1KHz

Gull
Wing
PICO
Part
Number 
J
Lead
PICO
Part
Number 
Prim
Imped
Ohms 
Secondary
Impedence
Ohms
Split
Windings 
Power
Milliwatts 
Primary
Unbal
DC
Current
ma 
Prim
DC
Resist
Ohms 
Secondary
DC
Resistance
Ohms 
Turns/Ratio
Prim/Sec 

Pico
Prices
1-9
*** 

(US $)

SER 
PAR 
1KHz
and
higher 
400Hz
and
higher 
SER
CONN 
PAR
CONN 
SEC
SER
CONN 
SEC
PAR
CONN 
70003
70005
70010
70015
70020
80003
80005
80010
80015
80020
10ct
20ct
20ct
32ct
40ct
10ct
8ct
20ct
32ct
40ct
2.5
2
5
8
10
125
125
125
125
125
20
20
20
20
20
11.5
8
8
6.5
5.6
1.1
2.1
2.1
3.52
4
1.35
1.28
2.56
4.32
4.77
.34
.32
.64
1.08
1.19
1:1
1.58:1
1:1
1:1
1:1
2:1
3.16:1
2:1
2:1
2:1
73.75
73.75
73.75
73.75
73.17
70025
70030
70035
70040
70045
80025
80030
80035
80040
80045
48ct
50ct
80ct
100ct
100ct 
16ct
50ct
32ct
40ct
100ct 
4
12.5
8
10
25 
125
125
125
125
125 
20
20
20
20
20 
5.2
5
4
3.6
3.6 
4.3
5.5
8.5
12.1
12.1 
2.3
6.6
4.25
4.85
12 
.58
1.65
1.06
1.21
1.73:1
1.1
1.58:1
1.58:1
1:1 
3.46:1
2:1
3.16:1
3.16:1
2:1 
67.04
67.04
73.17
73.17
67.04
Gull
Wing
PICO
Part
Number 
J
Lead
PICO
Part
Number 
Prim
Imped
Ohms 
Secondary
Impedence
Ohms
Split
Windings 
Power
Milliwatts 
Primary
Unbal
DC
Current
ma 
Prim
DC
Resist
Ohms 
Secondary
DC
Resistance
Ohms 
Turns/Ratio
Prim/Sec 

Pico
Prices
1-9
***

(US $)

SER 
PAR 
1KHz
and
higher 
400Hz
and
higher
 
SER
CONN 
PAR
CONN 
SEC
SER
CONN 
SEC
PAR
CONN 
70050
70055
70060
70065
70070
80050
80055
80060
80065
80070
120ct
120ct
120ct
150ct
150ct
12.8ct
60ct
120ct
12ct
50ct
3.2
15
30
3
12.5
125
125
125
125
125
20
20
20
20
20
3.3
3.3
3.3
3
3
13.2
13.2
13.2
15
15
1.6
7.3
16
1.56
6.6
.4
1.83
4
.39
1.65
3.06:1
1.41:1
1:1
3.54:1
1.73:1
6.12:1
2.83:1
2:1
7.07:1
3.46:1
67.04
80.18
80.18
77.63
80.18
70075
70080
70085
70090
70095
80075
80080
80085
80090
80095
150ct
150ct
150ct
200ct
300ct
100ct
150ct
600ct
200ct
12ct
25
37.5
150
50
3
125
125
125
125
125
20
20
20
20
20
3
3
3
2.5
2
15
15
15
22
33
14.5
18.3
72
25.8
1.56
3.63
4.58
18
6.7
.39
1.22:1
1:1
1:2
1:1
5:1
2.45:1
2:1
1:1
2:1
10:1
80.18
80.18
80.18
80.18
80.18
70100
70105
70110
70115
70120
80100
80105
80110
80115
80120
300ct
300ct
300ct
300ct
320ct
50ct
150ct
300ct
600ct
12.8ct
12.5
37.5
75
150
3.2
125
125
125
125
125
20
20
20
20
20
2
2
2
2
2
33
33
33
33
34
6.6
18.3
40.3
72
1.6
1.65
4.58
10.08
18
.4
2.45:1
1:1.41
1:1
1:1.41
5:1
4.9:1
2.83:1
2:1
1.41:1
10:1
80.18
80.18
80.18
72.88
85.97
70125
70130
70135
70140
70145
80125
80130
80135
80140
80145
400ct
400ct
400ct
400ct
400ct
40ct
120ct
200ct
400ct
1000ct
10
30
50
100
250
125
125
125
125
125
20
20
20
20
20
1.8
1.8
1.8
1.8
1.8
49
49
49
49
48
4.7
16.3
27.3
49
120
1.18
4.08
6.83
12.25
30
3.16:1
1.83:1
1.41:1
1:1
1:1.58
6.32:1
3.65:1
2.83:1
2:1
1.26:1
85.97
85.97
85.97
78.18
85.97
70150
70155
70160
70165
70170
80150
80155
80160
80165
80170
400ct
400ct
500ct
500ct
500ct
2000ct
4000ct
12.8ct
16ct
50ct
500
1000
3.2
4
12.5
125
125
125
125
125
20
20
20
20
20
1.8
1.8
1.6
1.6
1.6
49
49
54
54
54
270
476
1.6
2.3
6.6
67.5
119
0.4
0.58
1.65
1:2.24
1:3.16
6.25:1
5.6:1
3.16:1
1:1.12
1:1.58
12.5:1
11.2:1
6.32:1
85.97
85.97
78.18
78.18
78.18
70175
70180
70185
70190
70195
80175
80180
80185
80190
80195
500ct
500ct
*500ct
500ct
600ct
150ct
500ct
500ct
600ct
12.8ct
37.5
125
-
150
3.2
125
125
125
125
125
20
20
20
20
20
1.6
1.6
1.6
1.6
1.5
54
54
54
54
59
18.3
65
65
72
1.6
4.58
16.3
-
18
0.4
1.83:1
1:1
1:1
1:1.1
6.85:1
3.65:1
2:1
-
1.83:1
13.7:1
78.18
85.97
85.97
85.97
85.97
70200
70205
70210
70215
70220
80200
80205
80210
80215
80220
600ct
600ct
600ct
600ct
*600ct
30ct
48ct
200ct
600ct
600ct
7.5
12
50
150
-
125
125
125
125
125
20
20
20
20
20
1.5
1.5
1.5
1.5
1.5
59
59
59
59
59
4.1
5.2
26.5
72
72
1.03
1.3
6.63
18
-
4.47:1
3.54:1
1.73:1
1:1
1:1
8.94:1
7.07:1
3.46:1
2:1
-
78.18
78.18
78.18
78.18
85.97
70225
70230
70235
70240
70245
80225
80230
80235
80240
80245
600ct
640ct
700ct
800ct
800ct
1200ct
12.8ct
100ct
12.8ct
48ct
300
3.2
25
3.2
12
125
125
125
125
125
20
20
20
20
20
1.5
1.5
1.35
1.3
1.3
59
62
65
88
88
160
1.6
12
15
6.7
40
0.4
3
4
1.68
1:1.41
7.07:1
2.65:1
7.9:1
4.08:1
1.41:1
14.14:1
5.29:1
15.8:1
8.16:1
78.18
78.18
78.18
85.97
80.18
70250
70255
70260
70265
70270
80250
80255
80260
80265
80270
800ct
900ct
1000ct
1000ct
1000ct
800ct
600ct
12ct
50ct
1000ct
200
150
3
12.5
250
125
125
125
125
125
20
20
20
20
20
1.3
1.2
1.2
1.2
1.2
88
93
120
120
120
106
74
1.55
6.6
120
26.5
18.5
0.39
1.65
30
1:1
1.22:1
9.13:1
4.47:1
1:1
2:1
2.45:1
18.3:1
8.94:1
2:1
80.18
80.18
88.24
88.24
80.18
70275
70280
70285
70290
70295
80275
80280
80285
80290
80295
1060ct
1200ct
1200ct
1200ct
*1200ct
12.8ct
12.8ct
500ct
1200ct
1200ct
3.2
3.2
125
300
-
125
125
125
125
125
20
20
20
20
20
1.2
1
1
1
1
125
133
133
133
133
1.6
1.6
65
160
160
0.4
0.4
16.25
40
-
9.1:1
9.68:1
1.55:1
1:1
1:1
18.2:1
19.4:1
3.1:1
2:1
-
88.24
88.24
88.24
88.24
88.24
Gull
Wing
PICO
Part
Number 
J
Lead
PICO
Part
Number 
Prim
Imped
Ohms 
Secondary
Impedence
Ohms
Split
Windings 
Power
Milliwatts 
Primary
Unbal
DC
Current
ma 
Prim
DC
Resist
Ohms 
Secondary
DC
Resistance
Ohms 
Turns/Ratio
Prim/Sec 

Pico
Prices
1-9
***

(US $)

SER 
PAR 
1KHz
and
higher 
400Hz
and
higher 
SER
CONN 
PAR
CONN 
SEC
SER
CONN 
SEC
PAR
CONN 
70300
70305
70310
70315
70320
80300
80305
80310
80315
80320
1500ct
1500ct
*1500ct
*1500ct
1600ct
12ct
500ct
600ct
1500ct
12.8ct
3
125
-
-
3.2
125
125
125
125
125
20
20
20
20
20
1
1
1
1
1
180
180
180
180
190
1.55
65
73
215
1.6
0.39
16.3
-
-
0.4
11.2:1
1.73:1
1.58:1
1:1
11.2:1
22.4:1
3.46:1
-
-
22.4:1
88.24
80.18
80.18
88.24
88.24
70325
70330
70335
70340
80325
80330
80335
80340
2000ct
2000ct
*2000ct
2000ct
8ct
2000ct
2000ct
8000ct
2
500
-
2000
125
125
125
125
20
20
20
20
0.8
0.8
0.8
0.8
218
218
218
218
1
260
260
830
0.25
65
-
207.5
15.8:1
1:1
1:1
1:2
31.6:1
2.1:1
-
1:1
88.24
88.24
88.24
88.24
70345
70350
70355
70360
70365
80345
80350
80355
80360
80365
2500ct
3000ct
*3000ct
3600ct
4000ct
2500ct
3000ct
3000ct
3600ct
16ct
625
725
-
900
4
125
125
125
125
125
20
20
20
20
20
0.75
0.65
0.65
0.6
0.57
280
330
330
370
400
280
330
330
450
2.3
70
82.5
-
112.5
0.58
1:1
1:1
1:1
1:1
15.8:1
2:1
2:1
-
2:1
31.6:1
85.97
85.97
85.97
85.97
85.97
70370
70375
70380
70385
70390
80370
80375
80380
80385
80390
4000ct
4000ct
*4000ct
5000ct
5000ct
600ct
1000ct
8000ct
500ct
5000ct
150
250
-
125
1250
125
125
125
125
125
20
20
20
20
20
0.57
0.57
0.57
0.5
0.5
400
400
400
540
540
73
120
1070
65
650
18.25
30
-
16.25
162.5
2.58:1
2:1
1:1.41
3.16:1
1:1
5.16:1
4:1
-
6.32:1
2:1
85.97
85.97
94.52
85.97
85.97
70395
70400
70405
70410
70415
80395
80400
80405
80410
80415
7500ct
7500ct
7500ct
7500ct
*7500ct
50ct
100ct
600ct
2500ct
7500ct
12.5
25
150
625
-
125
125
125
125
125
20
20
20
20
20
.5
0.4
0.4
0.4
0.4
835
835
835
835
835
6.6
12
72
280
1020
1.65
3
18
70
-
12.2:1
8.66:1
3.54:1
1.73:1
1:1
24.5:1
17.3:1
7.07:1
3.46:1
-
94.52
86.84
86.84
86.84
86.84
70420
70425
70430
70435
70440
80420
80425
80430
80435
80440
8000ct
8000ct
*8000ct
*9000ct
10,000ct
12.8ct
1000ct
1200ct
9000ct
12.8ct
3.2
250
-
-
3.2
125
125
125
125
125
20
20
20
20
20
0.4
0.4
0.4
0.4
0.36
865
865
865
1160
1200
1.6
120
160
1160
1.6
0.4
30
-
-
0.4
25:1
2.83:1
2.58:1
1:1
28:1
50:1
5.66:1
-
-
56:1
94.52
94.52
94.52
94.52
94.85
70445
70450
70455
70460
70465
80445
80450
80455
80460
80465
10,000ct
10,000ct
10,000ct
10,000ct
10,000ct
16ct
100ct
200ct
500ct
600ct
4
25
50
125
150
125
125
125
125
125
20
20
20
20
20
0.36
0.36
0.36
0.36
0.36
1200
1200
1200
1200
1200
1.77
12
27
65
72
0.44
3
6.75
16.25
18
25:1
10:1
7.07:1
4.47:1
4.08:1
50:1
20:1
14.14:1
8.94:1
8.16:1
86.84
86.84
86.84
86.84
86.84
70470
70475
70480
70485
70490
80470
80475
80480
80485
80490
10,000ct
10,000ct
10,000ct
10,000ct
10,000ct
1000ct
1200ct
1500ct
2000ct
5000ct
250
300
375
500
1250
125
125
125
125
125
20
20
20
20
20
0.36
0.36
0.36
0.36
0.36
1200
1200
1200
1200
1200
120
160
215
260
650
30
40
53.8
65
162.5
3.16:1
2.88:1
2.58:1
2.24:1
1.41:1
6.32:1
5.77:1
5.16:1
4.47:1
2.83:1
86.84
86.84
88.24
88.24
88.24
70495
70500
70505
70510
70515
80495
80500
80505
80510
80515
10,000ct
10,000ct
*10,000ct
15,000ct
15,000ct
7500ct
10,000ct
10,000ct
400ct
500ct
1875
2500
-
100
125
125
125
125
100
100
20
20
20
15
15
0.36
0.36
0.36
0.35
0.35
1200
1200
1200
1420
1420
1020
1200
1440
43
49
255
300
-
10.75
12.25
1.15:1
1:1
1:1
6.12:1
5.48:1
2.3:1
2:1
-
12.24:1
10.95:1
88.24
80.18
94.52
86.84
86.84
70520
70525
70530
70535
70540
80520
80525
80530
80535
80540
15,000ct
15,000ct
*15,000ct
15,000ct
16,000ct
600ct
10,000ct
15,000ct
15,000ct
1000ct
150
2500
-
3750
250
100
100
100
100
100
15
15
15
15
15
0.35
0.35
0.35
0.35
0.35
1420
1420
1420
1420
1500
68
1100
1730
1730
115
17
275
-
433
28.75
5:1
1.22:1
1:1
1:1
4:1
10:1
2.45:1
-
2:1
8:1
86.84
86.84
94.52
88.24
88.24

 

 

Gull
Wing
PICO
Part
Number 
J
Lead
PICO
Part
Number 
Prim
Imped
Ohms 
Secondary
Impedence
Ohms
Split
Windings 
Power
Milliwatts 
Primary
Unbal
DC
Current
ma 
Prim
DC
Resist
Ohms 
Secondary
DC
Resistance
Ohms 
Turns/Ratio
Prim/Sec 

Pico
Prices
1-9
***

(US $)

SER 
PAR 
1KHz
and
higher 
400Hz
and
higher 
SER
CONN 
PAR
CONN 
SEC
SER
CONN 
SEC
PAR
CONN 
70545
70550
70555
70560
70565
70570
80545
80550
80555
80560
80565
80570
20,000ct
20,000ct
20,000ct
20,000ct
20,000ct
20,000ct
500ct
600ct
800ct
1000ct
5000ct
10,000ct
125
150
200
250
1250
2500
100
100
100
100
100
100
15
15
15
15
15
15
0.3
0.3
0.3
0.3
0.3
0.3
1600
1600
1600
1600
1600
1600
60
66
94
106
600
1100 
15
16.5
23.5
26.5
150
275
6.33:1
5.77:1
5:1
4.47:1
2:1
1.41:1
12.65:1
11.55:1
10:1
8.94:1
4:1
2.83:1
94.52
94.52
94.52
94.52
94.52
94.52

 

* Includes Electrostatic Shield

 

INDUCTORS

All Inductors have split windings and measurements are listed for both series and parrallel connections.
Two values of inductance, each at a particular value of D.C. current are listed for each inductor.
Part Number
Part Number
Inductance
DC CURRENT ma
DC Resistance OHMS
Prices 1-9***
(US $)
70825 
80825 
Series 
10.0
2.75 
0
2250 
76.31
Parallel 
2.5
.65 
0
560 
70830 
80830 
Series 
5.5
1.5 
0
1000 
76.31
Parallel 
1.3
.40 
0
250 
70835 
80835 
Series 
.85
.25 
1
240 
76.31
Parallel 
.21
.06 
2
12 
60 
70840 
80840 
Series 
.6
.15 
0
144 
76.31
Parallel 
.15
.04 
0
10 
36 
**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

    Delivery--stock to one week for sample orders.

FEATURES

  • Extreme resistance to thermal shockUltra Miniature size
  • PICO is approved QPL source (MIL-PRF-27)
  • Magnetic shield designs available
  • Electrostatic shielding can be added
  • Variation of standards designs available
  • Every unit in this catalog can be made with a 300 thermal cycle guarantee using PICO's special SR construction. Contact factory for details.

     

    Schematics

Schematics for Transformers
with Split Secondaries

Schematics for Transformers
with Electrostatic Shield

Schematics for Inductors


 
 

RECOMMENDED LAND PATTERN DIMENSIONS

RECOMMENDED LAND PATTERN DIMENSIONS

 

For immediate engineering assistance or to place an order: 
Call Toll Free: 800-431-1064


PICO Electronics, Inc.

143 Sparks Ave. Pelham, NY 10803-1810
Tel: 914-738-1400 or Fax: 914-738-8225

Go back to Surface Mount Transformers and Inductors Selections