PDF version

Audio Transformers:

2 Ohm to 100K Ohm; 300Hz to 75KHz; 600 milliwatt 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, 300 Hz-75 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: 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

Audio Transformers: 2 Ohm to 100K Ohm; 300Hz to 75KHz; 600 milliwatt at 1KHz

PICO
Part
Number
Square
Package
PICO
Part
Number
Round
Package
Primary
Impedence
Ohms
Secondary
Impedence
Ohms
Split
Windings
Power Watts
Primary
Unbal
DC
Current
ma 
Prim
DC
Resist
Ohms 
Secondary
DC
Resistance OHMS 
Turns Ratio
PRIM/SEC 

***
Prices
1-9
(US $)

SER
CONN
PAR
CONN
1KHz
and
higher
400Hz
and
higher
300Hz
and
higher
SER
CONN
PAR
CONN 
SEC
SER
CONN
SEC
PAR
CONN 
76203
76205
76210
76215
76218
RPS-76203
RPS-76205
RPS-76210
RPS-76215
RPS-76218
20ct
20ct
32ct
40ct
48ct
8ct
20ct
32ct
40ct
16ct
2
5
8
10
4
.6
.6
.6
.6
.6
.4
.4
.4
.4
.4
.3
.3
.3
.3
.3
30.0
30.0
23.0
21.0
19.0
2
2
3.3
3.7
3.75
1.2
2.8
4.5
5
3
.3
.7
1.13
1.25
.75
1.58:1
1:1
1:1
1:1
1.73:1
3.16:1
2:1
2:1
2:1
3.46:1
56.54
56.54
56.54
56.54
56.54
76220
76225
76228
76230
76235
RPS-76220
RPS-76225
RPS-76228
RPS-76230
RPS-76235
50ct
80ct
100ct
100ct
120ct
50ct
32ct
40ct
100ct
12.8ct
12.5
8
10
25
3.2
.6
.6
.6
.6
.6
.4
.4
.4
.4
.4
.3
.3
.3
.3
.3
19.0
15.0
13.0
13.0
12.0
5
7.5
10.8
10.8
9.3
7
4.3
5
12
2.2
1.75
1.13
1.25
3
.55
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
56.54
56.54
56.54
56.54
56.54
76240
76245
76250
76255
76260
RPS-76240
RPS-76245
RPS-76250
RPS-76255
RPS-76260
120ct
120ct
150ct
150ct
150ct
60ct
120ct
12ct
50ct
100ct
15
30
3
12.5
25
.6
.6
.6
.6
.6
.4
.4
.4
.4
.4
.3
.3
.3
.3
.3
12.0
12.0
11.0
11.0
11.0
9
11.6
11.2
13
13
7.2
13
2.2
6.8
11.8
1.8
3.3
55
1.7
3
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
2.45:1
56.54
56.54
56.54
56.54
56.54
PICO
Part
Number
Square
Package
PICO
Part
Number
Round
Package
Primary
Impedence
Ohms
Secondary
Impedence
Ohms
Split
Windings
Power Watts
Primary
Unbal
DC
Current
ma
Prim
DC
Resist
Ohms
Secondary
DC
Resistance OHMS
Turns Ratio
PRIM/SEC

***
Prices
1-9
(US $)

SER
CONN
PAR
CONN
1KHz
and
higher
400Hz
and
higher
300Hz
and
higher
SER
CONN
PAR
CONN
SEC
SER
CONN
SEC
PAR
CONN
76265
76270
76275
76280
76285
RPS-76265
RPS-76270
RPS-76275
RPS-76280
RPS-76285
150ct
150ct
200ct
300ct
300ct
150ct
600ct
200ct
12ct
50ct
37.5
150
50
3
12.5
.6
.6
.6
.6
.6
.4
.4
.4
.4
.4
.3
.3
.3
.3
.3
11.0
11.0
10.0
8.0
8.0
12
13
19
24
30
18.3
75
21.3
1.7
6.8
4.6
19
5.4
.43
1.7
1:1
1:2
1:1
5:1
2.45:1
2:1
1:1
2:1
10:1
4.9:1
56.54
56.54
56.54
56.54
56.54
76290
76295
76300
76305
76310
RPS-76290
RPS-76295
RPS-76300
RPS-76305
RPS-76310
300ct
300ct
300ct
320ct
400ct
150ct
300ct
600ct
12.8ct
40ct
37.5
75
150
3.2
10
.6
.6
.6
.6
.6
.4
.4
.4
.4
.4
.3
.3
.3
.3
.3
8.0
8.0
8.0
7.5
7.0
30
30
30
31
41
18
34
60
1.7
4.5
4.6
8.5
15
.43
1.13
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
56.54
56.54
56.54
56.54
56.54
76315
76320
76325
76330
76335
RPS-76315
RPS-76320
RPS-76325
RPS-76330
RPS-76335
400ct
400ct
400ct
400ct
400ct
120ct
200ct
400ct
1000ct
2000ct
30
50
100
250
500
.6
.6
.6
.6
.6
.4
.4
.4
.4
.4
.3
.3
.3
.3
.3
7.0
7.0
7.0
7.0
7.0
41
41
41
41
41
12
21.3
37.5
96
212
3
5.4
9.4
24
53
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
56.54
56.54
56.54
56.54
56.54
76340
76342
76344
76345
76347
RPS-76340
RPS-76342
RPS-76344
RPS-76345
RPS-76347
400ct
500ct
500ct
500ct
500ct
4000ct
12.8ct
16ct
50ct
150ct
1000
3.2
4
12.5
37.5
.6
.6
.6
.6
.6
.4
.4
.4
.4
.4
.3
.3
.3
.3
.3
7.0
6.0
6.0
6.0
6.0
41
48
48
39
48
375
1.7
1.9
6.8
18
94
.43
.5
1.7
4.6
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
56.54
56.54
56.54
56.54
56.54
76350
76355
76360
76365
76367
RPS-76350
RPS-76355
RPS-76360
RPS-76365
RPS-76367
500ct
*500ct
500ct
600ct
600ct
500ct
500ct
600ct
12.8ct
30ct
125
-
150
3.2
7.5
.6
.6
.6
.6
.6
.4
.4
.4
.4
.4
.3
.3
.3
.3
.3
6.0
6.0
6.0
5.5
5.5
48
48
48
53
53
54
68
59
1.7
4.2
13.5
-
15
.43
1.1
1:1
1:1
1:1.1
6.85:1
4.47:1
2:1
-
1.83:1
13.7:1
8.94:1
56.54
56.54
56.54
56.54
56.54
76370
76375
76380
76385
76387
RPS-76370
RPS-76375
RPS-76380
RPS-76385
RPS-76387
600ct
600ct
600ct
*600ct
600ct
48ct
200ct
600ct
600ct
1200ct
12
50
150
-
300
.6
.6
.6
.6
.6
.4
.4
.4
.4
.4
.3
.3
.3
.3
.3
5.5
5.5
5.5
5.5
5.5
53
53
57
53
53
6.8
21.3
79
75
105
1.7
5.3
20
-
26
3.54:1
1.73:1
1:1
1:1
1:1.41
7.07:1
3.46:1
2:1
-
1.41:1
56.54
56.54
56.54
56.54
56.54
76390
76395
76400
76405
76410
RPS-76390
RPS-76395
RPS-76400
RPS-76405
RPS-76410
640ct
700ct
800ct
800ct
800ct
12.8ct
100ct
12.8ct
48ct
800ct
3.2
25
3.2
12
200
.6
.6
.6
.6
.6
.4
.4
.4
.4
.4
.3
.3
.3
.3
.3
5.5
5.0
5.0
5.0
5.0
66
69
75
75
75
1.7
12
1.7
6.8
105
.43
3
.43
1.7
26
7.07:1
2.65:1
7.9:1
4.08:1
1:1
14.14:1
5.29:1
15.8:1
8.16:1
2:1
56.54
56.54
56.54
56.54
56.54
76415
76420
76425
76430
76435
RPS-76415
RPS-76420
RPS-76425
RPS-76430
RPS-76435
900ct
1000ct
1000ct
1000ct
1060ct
600ct
12ct
50ct
1000ct
12.8ct
150
3
12.5
250
3.2
.6
.6
.6
.6
.6
.4
.4
.4
.4
.4
.3
.3
.3
.3
.3
4.5
4.5
4.5
4.5
4.0
79
103
103
103
108
75
1.6
6.4
115
1.7
19
.4
1.6
28
.43
1.22:1
9.13:1
4.47:1
1:1
9.1:1
2.45:1
18.3:1
8.94:1
2:1
18.2:1
56.54
56.54
56.54
56.54
56.54
76440
76445
76450
76455
76460
RPS-76440
RPS-76445
RPS-76450
RPS-76455
RPS-76460
1200ct
1200ct
1200ct
*1200ct
1500ct
12.8ct
500ct
1200ct
1200ct
12ct
3.2
125
300
-
3
.6
.6
.6
.6
.6
.4
.4
.4
.4
.4
.3
.3
.3
.3
.3
4.0
4.0
4.0
4.0
3.5
113
113
113
111
126
1.7
54
126
125
1.6
.43
13.5
31.6
-
.4
9.68:1
1.55:1
1:1
1:1
11.2:1
19.4:1
3.1:1
2:1
-
22.4:1
56.54
56.54
56.54
56.54
56.54
76465
76470
76475
76480
76483
RPS-76465
RPS-76470
RPS-76475
RPS-76480
RPS-76483
1500ct
*1500ct
*1500ct
1600ct
2000ct
500ct
600ct
1500ct
12.8ct
8ct
125
-
-
3.2
2
.6
.6
.6
.6
.6
.4
.4
.4
.4
.4
.3
.3
.3
.3
.3
3.5
3.5
3.5
3.5
3.0
126
126
126
130
210
68
94
176
1.7
1.2
17
-
-
.43
.3
1.73:1
1.58:1
1:1
11.2:1
15.8:1
3.46:1
-
-
22.4:1
31.6:1
56.54
56.54
56.54
56.54
56.54
76485
76490
76495
76497
76500
RPS-76485
RPS-76490
RPS-76495
RPS-76497
RPS-76500
2000ct
*2000ct
2000ct
2500ct
3000ct
2000ct
2000ct
8000ct
2500ct
3000ct
500
-
2000
625
750
.6
.6
.6
.6
.6
.4
.4
.4
.4
.4
.3
.3
.3
.3
.3
3.0
3.0
3.0
2.5
2.5
198
198
198
220
243
218
218
850
305
335
55
-
213
76
84
1:1
1:1
1:2
1:1
1:1
2:1
-
1:1
2:1
2:1
56.54
56.54
56.54
56.54
56.54
PICO
Part
Number
Square
Package
PICO
Part
Number
Round
Package
Primary
Impedence
Ohms
Secondary
Impedence
Ohms
Split
Windings
Power Watts
Primary
Unbal
DC
Current
ma
Prim
DC
Resist
Ohms
Secondary
DC
Resistance OHMS
Turns Ratio
PRIM/SEC

***
Prices
1-9
(US $)

SER
CONN
PAR
CONN
1KHz
and
higher
400Hz
and
higher
300Hz
and
higher
SER
CONN
PAR
CONN
SEC
SER
CONN
SEC
PAR
CONN
76505
76510
76512
76514
76515
RPS-76505
RPS-76510
RPS-76512
RPS-76514
RPS-76515
*3000ct
3600ct
4000ct
4000ct
4000ct
3000ct
3600ct
16ct
600ct
1000ct
-
900
4
150
250
.6
.6
.6
.6
.6
.4
.4
.4
.4
.4
.3
.3
.3
.3
.3
2.5
2.5
2.0
2.0
2.0
304
330
350
350
350
335
366
3
76
115
-
92
.75
19
29
1:1
1:1
15.8:1
2.58:1
2:1
-
2:1
31.6:1
5.16:1
4:1
58.87
56.54
56.54
56.54
56.54
76520
76525
76530
76535
76540
RPS-76520
RPS-76525
RPS-76530
RPS-76535
RPS-76540
*4000ct
5000ct
5000ct
7500ct
7500ct
8000ct
500ct
5000ct
50ct
100ct
-
125
1250
12.5
25
.6
.6
.6
.6
.6
.4
.4
.4
.4
.4
.3
.3
.3
.3
.3
2.0
2.0
2.0
1.5
1.5
350
350
390
600
600
1062
67
538
7
12
-
17
135
1.75
3
1:1.41
3.16:1
1:1
12.2:1
8.66:1
-
6.32:1
2:1
24.5:1
17.3:1
58.87
56.54
56.54
62.73
62.73
76545
76550
76555
76560
76565
RPS-76545
RPS-76550
RPS-76555
RPS-76560
RPS-76565
7500ct
7500ct
*7500ct
8000ct
8000ct
600ct
2500ct
7500ct
12.8ct
1000ct
150
625
-
3.2
250
.6
.6
.6
.6
.6
.4
.4
.4
.4
.4
.3
.3
.3
.3
.3
1.5
1.5
1.5
1.5
1.5
600
600
750
750
750
78
305
828
1.7
115
19.5
77
-
.43
29
3.54:1
1.73:1
1:1
25:1
2.83:1
7.07:1
3.46:1
-
50:1
5.66:1
62.73
62.73
67.15
62.73
62.73
76570
76575
76580
76585
76590
RPS-76570
RPS-76575
RPS-76580
RPS-76585
RPS-76590
*8000ct
*9000ct
10,000ct
10,000ct
10,000ct
1200ct
9000ct
12.8ct
16ct
100ct
-
-
3.2
4
25
.6
.6
.6
.6
.6
.4
.4
.4
.4
.4
.3
.3
.3
.3
.3
1.5
1.4
1.4
1.4
1.4
750
796
1048
1048
839
158
1100
1.7
3
12
-
-
.43
.75
3
2.58:1
1:1
28:1
25:1
10:1
-
-
56:1
50:1
20:1
67.15
67.15
62.73
62.73
62.73
76595
76600
76605
76610
76615
RPS-76595
RPS-76600
RPS-76605
RPS-76610
RPS-76615
10,000ct
10,000ct
10,000ct
10,000ct
10,000ct
200ct
500ct
600ct
1000ct
1200ct
50
125
150
250
300
.6
.6
.6
.6
.6
.4
.4
.4
.4
.4
.3
.3
.3
.3
.3
1.4
1.4
1.4
1.4
1.4
839
850
850
850
850
27
67
74
115
158
6.7
17
18.5
29
39.5
7.07:1
4.47:1
4.08:1
3.16:1
2.89:1
14.14:1
8.94:1
8.16:1
6.32:1
5.77:1
62.73
62.73
62.73
62.73
62.73
76620
76625
76630
76635
76640
RPS-76620
RPS-76625
RPS-76630
RPS-76635
RPS-76640
10,000ct
10,000ct
10,000ct
10,000ct
10,000ct
1500ct
2000ct
5000ct
7500ct
10,000ct
375
500
1250
1875
2500
.6
.6
.6
.6
.6
.4
.4
.4
.4
.4
.3
.3
.3
.3
.3
1.4
1.4
1.4
1.4
1.4
850
850
850
850
866
177
255
630
772
1215
44
64
158
193
304
2.58:1
2.24:1
1.41:1
1.15:1
1:1
5.16:1
4.47:1
2.83:1
2.3:1
2:1
62.73
62.73
62.73
62.73
62.73
76645
76650
76652
76655
76660
RPS-76645
RPS-76650
RPS-76652
RPS-76655
RPS-76660
*10,000ct
15,000ct
15,000ct
15,000ct
15,000ct
10,000ct
400ct
500ct
600ct
10,000ct
-
100
125
150
2500
.6
.6
.6
.6
.6
.4
.4
.4
.4
.4
.3
.3
.3
.3
.3
1.4
1.0
1.0
1.0
1.0
1060
1305
1305
1305
1305
1215
47
53
72.5
1215
-
12
13
18
304
1:1
6.12:1
5.48:1
5:1
1.22:1
-
12.24:1
10.95:1
10:1
2.45:1
67.15
62.73
62.73
62.73
62.73
76665
76670
76675
76680
76685
RPS-76665
RPS-76670
RPS-76675
RPS-76680
RPS-76685
*15,000ct
15,000ct
16,000ct
20,000ct
20,000ct
15,000ct
15,000ct
1000ct
500ct
600ct 
-
3750
250
125
150 
.6
.6
.6
.5
.5 
.4
.4
.4
.4
.4 
.3
.3
.3
.3
.3 
1.0
1.0
1.0
1.0
1.0 
1305
1305
1343
1560
1560 
1800
1800
115
68
75 
-
450
29
17
19 
1:1
1:1
4:1
6.33:1
5.77:1 
-
2:1
8:1
12.65:1
11.55:1
67.15
62.73
62.73
67.15
67.15
76690
76695
76700
76705
76710
RPS-76690
RPS-76695
RPS-76700
RPS-76705
RPS-76710
20,000ct
20,000ct
20,000ct
20,000ct
*20,000ct
800ct
1000ct
5000ct
10,000ct
20,000ct
200
250
1250
2500
.5
.5
.5
.5
.5 
.4
.4
.4
.4
.4 
.3
.3
.3
.3
.3 
1.0
1.0
1.0
1.0
1.0 
1560
1560
1560
1560
1560 
108
121
672
1520
2727 
27
30.5
168
380
682 
5:1
4.47:1
2:1
1.41:1
1:1 
10:1
8.94:1
4:1
2.83:1
67.15
67.15
67.15
67.15
69.88
76715
76720
76725
76730
76732
RPS-76715
RPS-76720
RPS-76725
RPS-76730
RPS-76732
25,000ct
25,000ct
30,000ct
30,000ct
30,000ct
500ct
1000ct
50ct
1200ct
500ct 
125
250
12.5
300
125 
.4
.4
.33
.33
.33 
.4
.4
.33
.33
.33 
.3
.3
.3
.3
.3 
0.8
0.8
0.8
0.8
0.8 
2170
2170
2400
2400
2400 
68
120
7
156
68 
17
30
1.75
39
17 
7.07:1
5:1
24.5:1
5:1
7.75:1 
14.14:1
10:1
49:1
10:1
15.5:1 
67.15
67.15
69.88
69.88
69.88
76734
76735
76740
76745
76750
RPS-76734
RPS-76735
RPS-76740
RPS-76745
RPS-76750
30,000ct
30,000ct
30,000ct
*30,000ct
40,000ct
200ct
5000ct
10,000ct
30,000ct
400ct
50
1250
2500
-
100
.33
.33
.33
.33
.25
.33
.33
.33
.33
.25
.3
.3
.3
.3
.25
0.8
0.8
0.8
0.8
0.7
2400
2400
2400
3000
3400
29
673
1520
3310
57
7.2
169
380
-
14.3
12.25:1
2.45:1
1.73:1
1:1
10:1
24.5:1
4.9:1
3.46:1
-
20:1
69.88
69.88
69.88
75.02
75.02
PICO
Part
Number
Square
Package
PICO
Part
Number
Round
Package
Primary
Impedence
Ohms
Secondary
Impedence
Ohms
Split
Windings
Power Watts
Primary
Unbal
DC
Current
ma
Prim
DC
Resist
Ohms
Secondary
DC
Resistance OHMS
Turns Ratio
PRIM/SEC

***
Prices
1-9
(US $)

SER
CONN
PAR
CONN
1KHz
and
higher
400Hz
and
higher
300Hz
and
higher
SER
CONN
PAR
CONN
SEC
SER
CONN
SEC
PAR
CONN
76755
76760
76765
76770
76775
RPS-76755
RPS-76760
RPS-76765
RPS-76770
RPS-76775
40,000ct
40,000ct
40,000ct
*40,000ct
50,000ct
2000ct
4000ct
20,000ct
40,000ct
200ct
500
1000
5000
-
50
.25
.25
.25
.25
.2
.25
.25
.25
.25
.2
.25
.25
.25
.25
.2
0.7
0.7
0.7
0.7
0.6
3400
3400
3400
3400
4850
268
476
2700
4750
27
67
119
675
-
6.7
4.47:1
3.16:1
1.41:1
1:1
15.8:1
8.94:1
6.32:1
2.83:1
-
31.6:1
75.02
75.02
75.02
83.67
83.67
76777
76779
76780
76785
76787
RPS-76777
RPS-76779
RPS-76780
RPS-76785
RPS-76787
50,000ct
50,000ct
60,000ct
62,500ct
80,000ct
500ct
600ct
15,000ct
50ct
15,000ct
125
150
3750
12.5
3750
.2
.2
.16
.16
.12
.2
.2
.16
.16
.12
.2
.2
.16
.16
.12
0.6
0.6
0.5
0.5
0.4
4850
4850
5275
5445
6130
68
75
2250
8.7
2250
17
18.5
563
2.2
563
10:1
9.13:1
2:1
35.4:1
2.3:1
20:1
18.26:1
4:1
70.7:1
4.6:1
83.67
83.67
90.21
90.21
90.21
76790
76795
76800
76805
76810
76815
RPS-76790
RPS-76795
RPS-76800
RPS-76805
RPS-76810
RPS-76815
90,000ct
95,000ct
100,000ct 100,000ct
100,000ct
100,000ct
10,000ct
15,000ct
60ct
100ct
500ct
10,000ct
2500
3750
15
25
125
2500
.1
.1
.1
.1
.1
.1
.1
.1
.1
.1
.1
.1
.1
.1
.1
.1
.1
.1
0.4
0.4
0.4
0.4
0.4
0.4
8140
8400
8750
8750
8750
8750
1520
2250
9.2
15
68
1535
380
563
2.3
3.8
17
385
3:1
2.52:1
40.8:1
31.6:1
14.1:1
3.16:1
6:1
5.03:1
81.6:1
63.2:1
28.3:1
6.32:1
94.79
94.79
94.79
94.79
94.79
94.79

* INCLUDES ELECTROSTATIC SHIELD

***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 standards 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


 
 

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 menu