Audio Transformers:

2 Ohm to 135K Ohm; 75Hz to 30KHz; 1.5 watt at 1KHz

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. 

Specifications

  • MIL-PRF-27: All units manufactured to MIL-PRF-27, Grade 5, Class S 
  • FREQUENCY RESPONSE: ±3db, 75 Hz-30 KHz at 1.0 Milliwatt. 
  • MAXIMUM DISTORTION: 5% with Rated Power Level at 1 KHz, 300 Hz and 75 Hz. 
  • DIELECTRIC STRENGTH: All units tested at 200 V RMS. 
  • INSULATION RESISTANCE: Greater than 10,000 Megohms at 300 V DC. 
  • WEIGHT: 12 Grams 
  • OPERATING TEMPERATURE: -55º C to +130º C 
  • TERMINALS: Solderability per MIL-STD-202, Method 208. 
  • THERMAL SHOCK: 25 Cycles, Method 107, MIL-STD-202, Test Condition -55º C to +130º C. 

Bottom View
Larger size schematic


 

Audio Transformers 2 Ohm to 135K Ohm; 75Hz to 30KHz; 1.5 watt at 1KHz

Pico
Part
Number
Prim
Imped
Ohms
Secondary
Impedance
Ohms
Split
Windings
Power Watts
Primary
Unbal
DC
Current
ma
Prim
DC
Resist
Ohms
Secondary
DC
Resistance
Ohms
Turns Ratio
Prime/Sec
Pico
Price
1-9
***
(US $)
SER
PAR
1KHz
and
higher
300
Hz
and
higher
75
Hz
and
higher
SER
CONN
PAR
CONN
SEC
SER
CONN
SEC
PAR
CONN
82003
82005
82010
82015
82018
20 ct
20 ct
32 ct
40 ct
48 ct
8 ct
20 ct
32 ct
40 ct
16 ct
2
5
8
10
4
1.5
1.5
1.5
1.5
1.5
.9
.9
.9
.9
.9
.03
.03
.03
.03
.03
22
22
17.5
16
14.5
1.6
1.6
2.56
3.2
3.84
.76
1.9
3
3.8
1.52
.19
.48
.75
.95
.38
1.58:1
1:1
1:1
1:1
1.73:1
3.16:1
2:1
2:1
2:1
3.46:1
51.35
51.35
51.35
51.35
51.38
82020
82025
82028
82030
82035
50 ct
80 ct
100 ct
100 ct
120 ct
50 ct
32 ct
40 ct
100 ct
12.8 ct
12.5
8
10
25
3.2
1.5
1.5
1.5
1.5
1.5
.9
.9
.9
.9
.9
.03
.03
.03
.03
.03
14
11
10
10
9
4
6.4
8
8
9.6
4.75
3
3.8
9.5
1.22
1.19
.75
.95
2.38
.3
1:1
1.58:1
1.58:1
1:1
3.06:1
2:1
3.16:1
3.16:1
2:1
6.12:1
51.35
51.35
51.35
51.35
51.35
82040
82045
82050
82055
82060
120 ct
120 ct
150 ct
150 ct
150 ct
60 ct
120 ct
12 ct
50 ct
100 ct
15
30
3
12.5
25
1.5
1.5
1.5
1.5
1.5
.9
.9
.9
.9
.9
.03
.03
.03
.03
.03
9
9
8
8
8
9.6
9.6
12
12
12
5.7
11.4
1.14
4.75
9.5
1.4
2.85
.29
1.19
2.38
1.41:1
1:1
3.54:1
1.73:1
1.22:1
2.83:1
2:1
7.08:1
3.46:1
2.44:1
51.35
51.35
51.35
51.35
51.35
Pico
Part
Number
Prim
Imped
Ohms
Secondary
Impedance
Ohms
Split
Windings
Power Watts
Primary
Unbal
DC
Current
ma
Prim
DC
Resist
Ohms
Secondary
DC
Resistance
Ohms
Turns Ratio
Prime/Sec
Pico
Price
1-9
***
(US $)
SER
PAR
1KHz
and
higher
300 Hz
and
higher
75 Hz
and
higher
SER
CONN
PAR
CONN
SEC
SER
CONN
SEC
PAR
CONN
82065
82070
82075
82080
82085
150 ct
150 ct
200 ct
300 ct
300 ct
150 ct
600 ct
200 ct
12 ct
50 ct
37.5
150
50
3
12.5
1.5
1.5
1.5
1.5
1.5
.9
.9
.9
.9
.9
.03
.03
.03
.03
.03
8
8
7
5.5
5.5
12
12
16
24
24
14.3
57
19
1.14
4.75
3.56
14.3
4.75
.29
1.19
1:1
1:2
1:1
5:1
2.45:1
2:1
1:1
2:1
10:1
4.9:1
51.35
51.35
51.35
51.35
51.35
82090
82095
82100
82105
82110
300 ct
300 ct
300 ct
320 ct
400 ct
150 ct
300 ct
600 ct
12.8 ct
40 ct
37.5
75
150
3.2
10
1.5
1.5
1.5
1.5
1.5
.9
.9
.9
.9
.9
.03
.03
.03
.03
.03
5.5
5.5
5.5
5.5
5
24
24
24
25.6
32
14.25
28.5
57
1.22
3.8
3.56
7.13
14.25
.3
.95
1.41:1
1:1
1:1.41
5:1
3.16:1
2.83:1
2:1
1.41:1
10:1
6.32:1
51.35
51.35
51.35
51.35
51.35
82115
82120
82125
82130
82135
400 ct
400 ct
400 ct
400 ct
400 ct
120 ct
200 ct
400 ct
1000 ct
2000 ct
30
50
100
250
500
1.5
1.5
1.5
1.5
1.5
.9
.9
.9
.9
.9
.03
.03
.03
.03
.03
5
5
5
5
5
32
32
32
32
32
11.4
19
38
95
190
2.85
4.75
9.5
23.8
47.5
1.83:1
1.41:1
1:1
1:1.58
1:2.24
3.65:1
2.83:1
2:1
1.26:1
1:1.12
51.35
51.35
51.35
51.35
51.35
82140
82142
82144
82145
82147
400 ct
500 ct
500 ct
500 ct
500 ct
4000 ct
12.8 ct
16 ct
50 ct
150 ct
1000
3.2
4
12.5
37.5
1.5
1.5
1.5
1.5
1.5
.9
.9
.9
.9
.9
.03
.03
.03
.03
.03
5
4.5
4.5
4.5
4.5
32
40
40
40
40
380
1.22
1.52
4.75
14.25
95
.3
.38
1.19
3.56
1:3.16
6.25:1
5.6:1
3.16:1
1.83:1
1:1.58
12.5:1
11.2:1
6.32:1
3.65:1
51.35
51.35
51.35
51.35
51.35
82150
82155
82160
82165
82167
500 ct
*500 ct
500 ct
600 ct
600 ct
500 ct
500 ct
600 ct
12.8 ct
30 ct
125
-
150
3.2
7.5
1.5
1.5
1.5
1.5
1.5
.9
.9
.9
.9
.9
.03
.03
.03
.03
.03
4.5
4.5
4.5
4
4
40
40
40
48
48
47.5
47.5
57
1.22
2.85
11.88
-
14.25
.3
.71
1:1
1:1
1:1.1
6.85:1
4.47:1
2:1
-
1.83:1
13.7
8.94:1
51.35
53.47
51.35
44.85
44.85
82170
82175
82180
82185
82186
600 ct
600 ct
600 ct
*600 ct
*600 ct
48 ct
200 ct
600 ct
600 ct
900 ct
12
50
150
-
-
1.5
1.5
1.5
1.5
1.5
.9
.9
.9
.9
.9
.03
.03
.03
.03
.03
4
4
4
4
4
48
48
48
48
48
4.56
19
57
57
85.5
1.14
4.75
14.25
-
-
3.54:1
1.73:1
1:1
1:1
1:1.22
7.07:1
3.46:1
2:1
-
-
44.85
44.85
51.35
46.70
46.70
82187
82190
82195
82200
82205
600 ct
640 ct
700 ct
800 ct
800 ct
1200 ct
12.8 ct
100 ct
12.8 ct
48 ct
300
3.2
25
3.2
12
1.5
1.5
1.5
1.5
1.5
.9
.9
.9
.9
.9
.03
.03
.03
.03
.03
4
4
3.5
3.5
3.5
48
51.2
56
64
64
114
1.22
9.5
1.22
4.56
28.5
.3
2.38
.3
1.14
1:1.41
7.07:1
2.65:1
7.91:1
4.08:1
1.41:1
14.14:1
5.29:1
15.8:1
8.16:1
44.85
44.85
44.85
44.85
44.85
82210
82215
82217
82220
82225
800 ct
900 ct
*900 ct
1000 ct
1000 ct
800 ct
600 ct
900 ct
12 ct
50 ct
200
150
-
3
12.5
1.5
1.5
1.5
1.5
1.5
.9
.9
.9
.9
.9
.03
.03
.03
.03
.03
3.5
3
3
3
3
64
72
72
80
80
76
57
85.5
1.14
4.75
19
14.3
-
.29
1.19
1:1
1.23:1
1:1
9.13:1
4.47:1
2:1
2.45:1
-
18.26:1
8.94:1
44.85
44.85
46.70
44.85
44.85
82230
82235
82240
82245
82250
1000 ct
1060 ct
1200 ct
1200 ct
1200 ct
1000 ct
12.8 ct
12.8 ct
500 ct
1200 ct
250
3.2
3.2
125
300
1.5
1.5
1.5
1.5
1.5
.9
.9
.9
.9
.9
.03
.03
.03
.03
.03
3
3
3
3
3
80
85
96
96
96
95
1.22
1.22
47.5
114
23.8
.3
.3
11.88
28.5
1:1
9.1:1
9.68:1
1.55:1
1:1
2:1
18.2:1
19.4:1
3.1:1
2:1
44.85
44.85
44.85
44.85
44.85
82255
82260
82265
82270
82275
*1200 ct
1500 ct
1500 ct
*1500 ct
*1500 ct
1200 ct
12 ct
500 ct
600 ct
1500 ct
-
3
125
-
-
1.5
1.5
1.5
1.5
1.5
.9
.9
.9
.9
.9
.03
.03
.03
.03
.03
3
2.5
2.5
2.5
2.5
96
120
120
120
120
114
1.14
47.5
57
142
-
.29
11.88
-
-
1:1
11.18:1
1.73:1
1.58:1
1:1
-
22.36:1
3.46:1
-
-
46.70
44.85
44.85
46.70
46.70
Pico
Part
Number
Prim
Imped
Ohms
Secondary
Impedance
Ohms
Split
Windings
Power Watts
Primary
Unbal
DC
Current
ma
Prim
DC
Resist
Ohms
Secondary
DC
Resistance
Ohms
Turns Ratio
Prime/Sec
Pico
Price
1-9
***
(US $)
SER
PAR
1KHz
and
higher
300 Hz
and
higher
75 Hz
and
higher
SER
CONN
PAR
CONN
SEC
SER
CONN
SEC
PAR
CONN
82280
82283
82285
82290
82295
1600 ct
2000 ct
2000 ct
*2000 ct
2000 ct
12.8 ct
8 ct
2000 ct
2000 ct
8000 ct
3.2
2
500
-
2000
1.5
1.5
1.5
1.5
1.5
.9
.9
.9
.9
.9
.03
.03
.03
.03
.03
2.5
2.2
2.2
2.2
2.2
128
160
160
160
160
1.22
.76
190
190
760
3
.19
47.5
-
190
11.18:1
15.8:1
1:1
1:1
1:2
22.36:1
31.6:1
2:1
-
1:1
44.85
44.85
44.85
46.70
44.85
82297
82300
82305
2500 ct
3000 ct
*3000 ct
2500 ct
3000 ct
3000 ct
625
750
-
1.5
1.5
1.5
.9
.9
.9
.03
.03
.03
2
1.8
1.8
200
240
240
238
285
285
59.5
71.3
-
1:1
1:1
1:1
2:1
2:1
-
44.85
44.85
46.70
82310
82312
82314
82315
82320
3600 ct
4000 ct
4000 ct
4000 ct
*4000 ct
3600 ct
16 ct
600 ct
1000 ct
8000 ct
90
4
150
250
-
1.5
1.5
1.5
1.5
1.5
.9
.9
.9
.9
.9
.03
.03
.03
.03
.03
1.7
1.6
1.6
1.6
1.6
288
320
320
320
320
342
1.52
57
95
760
86
.38
14.3
23.8
-
1:1
15.8:1
2.58:1
2:1
1:1.41
2:1
31.62:1
5.16:1
4:1
-
51.35
51.35
51.35
51.35
53.47
82325
82330
82335
82340
82345
5000 ct
5000 ct
7500 ct
7500 ct
7500 ct
500 ct
5000 ct
50 ct
100 ct
600 ct
125
1250
12.5
25
150
1.5
1.5
1.3
1.3
1.3
.9
.9
.9
.9
.9
.03
.03
.03
.03
.03
1.4
1.4
1.2
1.2
1.2
400
400
600
600
600
47.5
475
4.75
9.5
57
11.88
119
1.19
2.38
14.3
3.16:1
1:1
12.25:1
8.66:1
3.54:1
6.32:1
2:1
24.5:1
17.32:1
7.07:1
51.35
51.35
57.18
57.18
57.18
82350
82355
82360
82365
82370
7500 ct
*7500 ct
8000 ct
8000 ct
*8000 ct
2500 ct
7500 ct
12.8 ct 1000 ct
1200 ct
625
-
3.2
250
-
1.3
1.3
1.2
1.2
1.2
.9
.9
.9
.9
.9
.03
.03
.03
.03
.03
1.2
1.2
1.1
1.1
1.1
600
600
640
640
640
238
713
1.22
95
114
59.5
-
.3
23.8
-
1.73:1
1:1
25:1
2.83:1
2.58:1
3.46:1
-
50:1
5.66:1
-
57.18
60.97
57.18
57.18
60.97
82375
82380
82385
82390
82395
*9000 ct
10,000 ct
10,000 ct
10,000 ct
10,000 ct
9000 ct
12.8 ct
16 ct
100 ct
200 ct
-
3.2
4
25
50
1.1
1.0
1.0
1.0
1.0
.9
.9
.9
.9
.9
.03
.03
.03
.03
.03
1.1
1
1
1
1
720
800
800
800
800
855
1.22
1.52
9.5
19
-
.3
.38
2.38
4.75
1:1
28:1
25:1
10:1
7.07:1
-
56:1
50:1
20:1
14.14:1
60.97
57.18
57.18
57.18
57.18
82400
82405
82410
82415
82420
10,000 ct
10,000 ct
10,000 ct
10,000 ct
10,000 ct
500 ct
600 ct
1000 ct
1200 ct
1500 ct
125
150
250
300
375
1.0
1.0
1.0
1.0
1.0
.9
.9
.9
.9
.9
.03
.03
.03
.03
.03
1
1
1
1
1
800
800
800
800
800
47.5
57
95
114
143
11.88
14.25
23.8
28.5
35.8
4.47:1
4.08:1
3.16:1
2.89:1
2.58:1
8.94:1
8.16:1
6.32:1
5.77:1
5.16:1
57.18
57.18
57.18
57.18
57.18
82425
82430
82435
82440
82445
10,000 ct
10,000 ct
10,000 ct
10,000 ct
*10,000ct
2000 ct
5000 ct
7500 ct
10,000 ct
10,000 ct
500
1250
1875
2500
-
1.0
1.0
1.0
1.0
1.0
.9
.9
.9
.9
.9
.03
.03
.03
.03
.03
1
1
1
1
1
800
800
800
800
800
190
475
713
950
950
47.5
119
178
238
-
2.24:1
1.41:1
1.16:1
1:1
1:1
4.47:1
2.83:1
2.31:1
2:1
-
57.18
57.18
57.18
57.18
60.97
82450
82452
82455
82460
82465
15,000 ct
15,000 ct
15,000 ct
15,000 ct
*15,000ct
400 ct
500 ct
600 ct
10,000 ct
15,000 ct
100
125
150
2500
-
.66
.66
.66
.66
.66
.66
.66
.66
.66
.66
.03
.03
.03
.03
.03
.8
.8
.8
.8
.8
1200
1200
1200
1200
1200
38
48
57
950
1430
9.5
12
14.3
238
-
6.12:1
5.48:1
5:1
1.22:1
1:1
12.25:1
10.95:1
10:1
2.45:1
-
57.18
57.18
57.18
57.18
60.97
82470
82475
82480
82485
82490
15,000 ct
16,000 ct
20,000 ct
20,000 ct
20,000 ct
15,000 ct
1000 ct
500 ct
600 ct
800 ct
3750
250
125
150
200
.66
.62
.5
.5
.5
.66
.62
.5
.5
.5
.03
.03
.03
.03
.03
.8
.8
.7
.7
.7
1200
1280
1600
1600
1600
1430
95
47.5
57
76
357
23.8
11.88
14.25
19
1:1
4:1
6.32:1
5.77:1
5:1
2:1
8:1
12.65:1
11.55:1
10:1
57.18
57.18
60.97
60.97
60.97
82495
82500
82505
82510
82515
20,000 ct
20,000 ct
20,000 ct
*20,000ct
25,000 ct
1000 ct
5000 ct
10,000 ct
20,000 ct
500 ct
250
1250
2500
-
125
.5
.5
.5
.5
.4
.5
.5
.5
.5
.4
.03
.03
.03
.03
.03
.7
.7
.7
.7
.6
1600
1600
1600
1600
2000
95
475
950
1900
47.5
23.8
119
238
-
11.88
4.47:1
2:1
1.41:1
1:1
7.07:1
8.94:1
4:1
2.83:1
-
14.14:1
60.97
60.97
60.97
63.39
60.97
Pico
Part
Number
Prim
Imped
Ohms
Secondary
Impedance
Ohms
Split
Windings
Power Watt
Primary
Unbal
DC
Current
ma
Prim
DC
Resist
Ohms
Secondary
DC
Resistance
Ohms
Turns Ratio
Prime/Sec
Pico
Price
1-9
***
(US $)
SER
PAR
1KHz
and
higher
300 Hz
and
higher
75 Hz
and
higher
SER
CONN
PAR
CONN
SEC
SER
CONN
SEC
PAR
CONN
82520
82525
82530
82532
82534
25,000ct
30,000ct
30,000ct
30,000ct
30,000ct
1000 ct
50 ct
1200 ct
500 ct
200 ct
250
12.5
300
125
50
.4
.33
.33
.33
.33
.4
.33
.33
.33
.33
.03
.03
.03
.03
.03
.6
.6
.6
.6
.6
2000
2400
2400
2400
2400
95
4.75
114
47.5
19
23.8
1.19
28.5
11.88
4.75
5:1
24.5:1
5:1
7.7:1
12.2:1
10:1
49:1
10:1
15.5:1
24.5:1
60.97
63.39
63.39
63.39
63.39
82535
82540
82545
82550
82555
30,000ct
30,000ct
*30,000ct
40,000ct
40,000ct
5000 ct
10,000ct
30,000ct
400 ct
2000 ct
1250
2500
-
100
500
.33
.33
.33
.25
.25
.33
.33
.33
.25
.25
.03
.03
.03
.03
.03
.6
.6
.6
.5
.5
2400
2400
2400
3200
3200
475
950
2850
38
190
119
238
-
9.5
47.5
2.45:1
1.73:1
1:1
10:1
4.47:1
4.9:1
3.46:1
-
20:1
8.94:1
63.39
63.39
68.29
68.29
68.29
82560
82565
82570
82575
82577
40,000ct
40,000ct
*40,000ct
50,000ct
50,000ct
4000 ct
20,000ct
40,000ct
200 ct
500 ct
1000
5000
-
50
125
.25
.25
.25
.2
.2
.25
.25
.25
.2
.2
.03
.03
.03
.03
.03
.5
.5
.5
.4
.4
3200
3200
3200
4000
4000
380
1900
3800
19
47.5
95
475
-
4.75
11.88
3.16:1
1.41:1
1:1
15.8:1
10:1
6.32:1
2.83:1
-
31.6:1
20:1
68.29
68.29
75.81
75.81
75.81
82578
82579
82580
82585
82587
50,000ct
50,000ct
60,000ct
62,500ct
80,000ct
600 ct
50,000ct
15,000ct
50 ct
15,000ct
150
12,500
3750
12.5
3750
.2
.2
.16
.16
.12
.2
.2
.16
.16
.12
.03
.03
.03
.03
.03
.4
.4
.4
.4
.3
4000
4000
4800
5000
6400
57
4750
1430
4.75
1430
14.3
1190
358
1.19
358
9.13:1
1:1
2:1
35.4:1
2.3:1
18.26:1
2:1
4:1
70.7:1
4.6:1
75.81
75.81
81.91
81.91
81.91
82590
82595
82600
82605
82610
90,000ct
95,000ct
100,000ct
100,000ct
100,000ct
10,000ct
15,000ct
60 ct
100 ct
500 ct
2500
3750
15
25
125
.11
.1
.1
.1
.1
.11
.1
.1
.1
.1
.03
.03
.03
.03
.03
.3
.3
.3
.3
.3
7200
7600
8000
8000
8000
950
1430
5.7
9.5
47.5
238
358
1.43
2.38
11.88
3:1
2.5:1
40.8:1
31.6:1
14.1:1
6:1
5:1
81.6:1
63.2:1
28.3:1
81.91
85.97
85.97
85.97
85.97
82613
82614
82615
82620
100,000ct
100,000ct
100,000ct
135,000ct
1000 ct
2000 ct
10,000ct
82 ct
250
500
2500
20.5
.1
.1
.1
.07
.1
.1
.1
.07
.03
.03
.03
.03
.3
.3
.3
.2
8000
8000
8000
10,800
95
190
950
7.8
23.8
47.5
238
1.9
10:1
7.07:1
3.16:1
40.6:1
20:1
14.14:1
6.32:1
81.2:1
85.97
85.97
85.97
89.80

*Includes electrostatic shield 
 
**Miniaturized telephoned coupling application   
***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 shock. 
  • Ultra miniature size. 
  • PICO is approved QPL source (MIL-PRF-27). 
  • Magnetic shields available. 
  • Electrostatic shielding can be added. 
  • Variation of standard designs available. 
  • Primary and secondary windings can be used either as input or output. 
  • 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 
for Transformers 
with Electrostatic Shield 
Schematics 
for Transformers 
with Split Secondaries 


Click Here for Plug-in Version of 82000 Series

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 10803-1837
Tel: 914-738-1400 or Fax: 914-738-8225

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