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Audio Transformers:

2 Ohm to 40K Ohm; 400Hz to 100KHz; 400 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, 400 Hz-100 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: 3 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 schematic

Bottom View
Larger size schematic


 

Audio Transformers: 2 Ohm to 40K Ohm; 400Hz to 100KHz; 400 milliwatt at 1KHz

Gull
Wing
PICO
Part
Number
J
Lead
PICO
Part
Number
Primary
Imped
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
Pico
Prices
1-9**

(US $)
SER
PAR
1KHz
and
higher
400Hz
and
higher
SER
CONN
PAR
CONN
SEC
SER
CONN
SEC
PAR
CONN
71003
71005
71010
71015
71020
81003
81005
81010
81015
81020
10ct
20ct
20ct
32ct
40ct
10ct
8ct
20ct
32ct
40ct
2.5
2
5
8
10
.4
.4
.4
.4
.4
.075
.075
.075
.075
.075
31.6
22.3
22.3
17.6
15.8
1.1
2.2
2.2
3.5
4
1.3
1
2.6
4.2
4.5
.33
.25
.65
1.05
1.2
1:1
1.58:1
1:1
1:1
1:1
2:1
3.16:1
2:1
2:1
2:1
54.42
54.42
54.42
54.42
54.42
71025
71030
71035
71040
71045
81025
81030
81035
81040
81045
48ct
50ct
80ct
100ct
100ct
16ct
50ct
32ct
40ct
100ct
4
12.5
8
10
25
.4
.4
.4
.4
.4
.075
.075
.075
.075
.075
14.4
14.1
11.1
10
10
5.3
5.6
8
10
10
1.9
6.5
4
4.5
12
.48
1.6
1
1.2
3
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
57.75
57.75
68.55
57.75
51.94
Gull
Wing
PICO
Part
Number
J
Lead
PICO
Part
Number
Primary
Imped
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

Pico
Prices
1-9**

(US $)

SER
PAR
1KHz
and
higher
400Hz
and
higher
SER
CONN
PAR
CONN
SEC
SER
CONN
SEC
PAR
CONN
71050
71055
71060
71065
71070
81050
81055
81060
81065
81070
120ct
120ct
120ct
150ct
150ct
12.8ct
60ct
120ct
12ct
50ct
3.2
15
30
3
12.5
.4
.4
.4
.4
.4
.075
.075
.075
.075
.075
9.1
9.1
9.1
8.2
8.2
12
12
12
15
15
1.5
7.2
14.5
1.5
6
.38
1.8
3.6
.38
1.5
3.06:1
1.41:1
1:1
3.54:1
1.73:1
6.12:1
2.83:1
2:1
7.08:1
3.46:1
54.94
68.55
68.55
52.00
57.75
71075
71080
71085
71090
71095
81075
81080
81085
81090
81095
150ct
150ct
150ct
200ct
300ct
100ct
150ct
600ct
200ct
12ct
25
37.5
150
50
3
.4
.4
.4
.4
.4
.075
.075
.075
.075
.075
8.2
8.2
8.2
7
5.8
15
15
15
20
30
12
16.8
70
24
1.5
3
4.2
17.5
6
.38
1.22:1
1:1
1:2
1:1
5:1
2.45:1
2:1
1:1
2:1
10:1
57.75
68.55
57.75
57.75
51.94
71100
71105
71110
71115
71120
81100
81105
81110
81115
81120
300ct
300ct
300ct
300ct
320ct
50ct
150ct
300ct
600ct
12.8ct
12.5
37.5
75
150
3.2
.4
.4
.4
.4
.4
.075
.075
.075
.075
.075
5.8
5.8
5.8
5.8
5.6
30
30
30
30
32
6
18
36
72
1.5
1.5
4.5
9
18
.38
2.45:1
1.41:1
1:1
1:1.41
5:1
4.9:1
2.83:1
2:1
1.41:1
10:1
57.75
57.75
68.55
51.94
51.94
71125
71130
71135
71140
71145
81125
81130
81135
81140
81145
400ct
400ct
400ct
400ct
400ct
40ct
120ct
200ct
400ct
1000ct
10
30
50
100
250
.4
.4
.4
.4
.4
.075
.075
.075
.075
.075
5
5
5
5
5
40
40
40
40
40
4.5
14
24
48
120
1.1
3.5
6
12
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
68.55
68.55
57.75
68.55
78.67
71150
71155
71160
71165
71170
81150
81155
81160
81165
81170
400ct
400ct
500ct
500ct
500ct
2000ct
4000ct
12.8ct
16ct
50ct
500
1000
3.2
4
12.5
.4
.4
.4
.4
.4
.075
.075
.075
.075
.075
5
5
4.5
4.5
4.5
40
40
50
50
50
240
480
1.5
2
6
60
120
.38
.5
1.5
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
78.67
71.03
60.21
60.21
60.21
71175
71180
71185
71190
71195
81175
81180
81185
81190
81195
500ct
500ct
*500ct
500ct
600ct
150ct
500ct
500ct
600ct
12.8ct
37.5
125
-
150
3.2
.4
.4
.4
.4
.4
.075
.075
.075
.075
.075
4.5
4.5
4.5
4.5
4.1
50
50
50
50
60
16
60
60
72
1.5
4.5
15
-
18
.38
1.83:1
1:1
1:1
1:1.1
6.85:1
3.65:1
2:1
-
1.83:1
13.7:1
60.21
60.21
60.21
60.21
51.94
71200
71205
71210
71215
71220
81200
81205
81210
81215
81220
600ct
600ct
600ct
600ct
*600ct
30ct
48ct
200ct
600ct
600ct
7.5
12
50
150
-
.4
.4
.4
.4
.4
.075
.075
.075
.075
.075
4.1
4.1
4.1
4.1
4.1
60
60
60
60
60
3.6
5.8
24
72
72
.9
1.45
6
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
-
54.42
54.42
54.42
54.42
60.21
71225
71230
71235
71240
71245
81225
81230
81235
81240
81245
600ct
640ct
700ct
800ct
800ct
1200ct
12.8ct
100ct
12.8ct
48ct
300
3.2
25
3.2
12
.4
.4
.4
.4
.4
.075
.075
.075
.075
.075
4.1
3.9
3.8
3.5
3.5
60
64
70
80
80
144
1.5
12
1.5
5.8
36
.38
3
.38
1.45
1:1.41
7.07:1
2.65:1
7.9:1
4.08:1
1.41:1
14.4:1
5.29:1
15.8:1
8.16:1
54.42
54.42
54.42
54.42
81.23
71250
71255
71260
71265
71270
81250
81255
81260
81265
81270
800ct
900ct
1000ct
1000ct
1000ct
800ct
600ct
12ct
50ct
1000ct
200
150
3
12.5
250
.4
.4
.4
.4
.4
.075
.075
.075
.075
.075
3.5
3.3
3.2
3.2
3.2
80
90
100
100
100
96
72
1.5
6
120
24
18
0.38
1.5
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
54.42
54.42
54.42
60.21
60.21
71275
71280
71285
71290
71295
81275
81280
81285
81290
81295
1060ct
1200ct
1200ct
1200ct
*1200ct
12.8ct
12.8ct
500ct
1200ct
1200ct
3.2
3.2
125
300
-
.4
.4
.4
.4
.4
.075
.075
.075
.075
.075
3.1
2.9
2.9
2.9
2.9
106
120
120
120
120
1.5
1.5
60
140
140
.38
.38
15
35
-
9.1:1
9.68:1
1.55:1
1:1
1:1
18.2:1
19.4:1
3.1:1
2:1
-
54.42
49.03
49.03
49.03
67.02
71300
71305
71310
71315
71320
81300
81305
81310
81315
81320
1500ct
1500ct
*1500ct
*1500ct
1600ct
12ct
500ct
600ct
1500ct
12.8ct
3
125
-
-
3.2
.4
.4
.4
.4
.4
.075
.075
.075
.075
.075
2.6
2.6
2.6
2.6
2.5
150
150
150
150
160
1.5
60
72
180
1.5
.38
15
-
-
.38
11.2:1
1.73:1
1.58:1
1:1
11.2:1
22.4:1
3.46:1
-
-
22.4:1
54.42
60.19
60.21
60.21
54.42
Gull
Wing
PICO
Part
Number
J
Lead
PICO
Part
Number
Primary
Imped
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

Pico
Prices
1-9**

(US $)

SER
PAR
1KHz
and
higher
400Hz
and
higher
SER
CONN
PAR
CONN
SEC
SER
CONN
SEC
PAR
CONN
71325
71330
71335
71340
71345
81325
81330
81335
81340
81345
2000ct
2000ct
*2000ct
2000ct
2500ct
8ct
2000ct
2000ct
8000ct
2500ct
2
500
-
2000
625
.4
.4
.4
.4
.4
.075
.075
.075
.075
.075
2.2
2.2
2.2
2.2
2
200
200
200
200
250
1
240
240
960
300
.25
60
-
240
75
15.8:1
1:1
1:1
1:2
1:1
31.6:1
2:1
-
1:1
2:1
71.03
71.03
78.67
71.03
71.03
71350
71355
71360
71365
71370
81350
81355
81360
81365
81370
3000ct
*3000ct
3600ct
4000ct
4000ct
3000ct
3000ct
3600ct
16ct
600ct
725
-
900
4
150
.4
.4
.4
.4
.4
.075
.075
.075
.075
.075
1.8
1.8
1.7
1.6
1.6
300
300
360
400
400
360
360
432
1.9
72
90
-
108
.47
18
1:1
1:1
1:1
15.8:1
2.58:1
2:1
-
2:1
31.6:1
5.16:1
57.79
78.67
57.79
71.03
71.03
71375
71380
71385
71390
71395
81375
81380
81385
81390
81395
4000ct
*4000ct
5000ct
5000ct
7500ct
1000ct
8000ct
500ct
5000ct
50ct
250
-
125
1250
12.5
.4
.4
.4
.4
.33
.075
.075
.075
.075
.075
1.6
1.6
1.4
1.4
1.2
400
400
500
500
750
120
960
60
600
6
30
-
15
150
1.5
2:1
1:1.41
3.16:1
1:1
12.2:1
4:1
-
6.32:1
2:1
24.5:1
78.67
78.67
60.21
60.21
60.21
71400
71405
71410
71415
71420
81400
81405
81410
81415
81420
7500ct
7500ct
7500ct
*7500ct
8000ct
100ct
600ct
2500ct
7500ct
12.8ct
25
150
625
-
3.2
.33
.33
.33
.33
.3
.075
.075
.075
.075
.075
1.2
1.2
1.2
1.2
1.1
750
750
750
750
800
12
72
300
900
1.5
3
18
75
-
.38
8.66:1
3.54:1
1.73:1
1:1
25:1
17.3:1
7.07
3.46:1
-
50:1
60.21
67.02
67.02
78.67
60.21
71425
71430
71435
71440
71445
81425
81430
81435
81440
81445
8000ct
*8000ct
*9000ct
10,000ct
10,000ct
1000ct
1200ct
9000ct
12.8ct
16ct
250
-
-
3.2
4
.3
.3
.27
.25
.25
.075
.075
.075
.075
.075
1.1
1.1
1.1
1.0
1.0
800
800
900
1000
1000
120
144
1080
1.5
1.92
30
-
-
.38
.48
2.83:1
2.58:1
1:1
28:1
25:1
5.66:1
-
-
56:1
50:1
67.02
78.67
78.67
54.42
54.42
71450
71455
71460
71465
71470
81450
81455
81460
81465
81470
10,000ct
10,000ct
10,000ct
10,000ct
10,000ct
100ct
200ct
500ct
600ct
1000ct
25
50
125
150
250
.25
.25
.25
.25
.25
.075
.075
.075
.075
.075
1.0
1.0
1.0
1.0
1.0
1000
1000
1000
1000
1000
12
24
60
72
120
3
6
15
18
30
10:1
7.07:1
4.47:1
4.08:1
3.16:1
20:1
14.14:1
8.94:1
8.16:1
6.32:1
60.21
60.21
60.21
60.21
60.21
71475
71480
71485
71490
71495
81475
81480
81485
81490
81495
10,000ct
10,000ct
10,000ct
10,000ct
10,000ct
1200ct
1500ct
2000ct
5000ct
7500ct
300
375
500
1250
1875
.25
.25
.25
.25
.25
.075
.075
.075
.075
.075
1.0
1.0
1.0
1.0
1.0
1000
1000
1000
1000
1000
144
180
240
600
900
36
45
60
150
225
2.89:1
2.58:1
2.24:1
1.41:1
1.15:1
5.77:1
5.16:1
4.47:1
2.83:1
2.3:1
71.03
71.03
69.61
70.80
71.03
71500
71505
71510
71515
71520
81500
81505
81510
81515
81520
10,000ct
*10,000ct
15,000ct
15,000ct
15,000ct
10,000ct
10,000ct
400ct
500ct
600ct
2500
-
100
125
150
.25
.25
.16
.16
.16
.075
.075
.075
.075
.075
1.0
1.0
.82
.82
.82
1000
1000
1500
1500
1500
1200
1200
48
60
72
300
-
12
15
18
1:1
1:1
6.12:1
5.48:1
5:1
2:1
-
12.24:1
10.95:1
10:1
68.48
78.67
68.48
68.48
68.48
71525
71530
71535
71540
71545
81525
81530
81535
81540
81545
15,000ct
*15,000ct
15,000ct
16,000ct
20,000ct
10,000ct
15,000ct
15,000ct
1000ct
500ct
2500
-
3750
250
125
.16
.16
.16
.15
.125
.075
.075
.075
.075
.075
.82
.82
.82
.8
.7
1500
1500
1500
1600
2000
1200
1800
1800
120
60
300
-
450
30
15
1.22:1
1:1
1:1
4:1
6.33:1
2.45:1
-
2:1
8:1
12.65:1
68.48
78.67
71.03
71.03
65.56
71550
71555
71560
71565
71570
81550
81555
81560
81565
81570
20,000ct
20,000ct
20,000ct
20,000ct
20,000ct
600ct
800ct
1000ct
5000ct
10,000ct
150
200
250
1250
2500
.125
.125
.125
.125
.125
.075
.075
.075
.075
.075
.7
.7
.7
.7
.7
2000
2000
2000
2000
2000
72
96
120
600
1200
18
24
30
150
300
5.77:1
5:1
4.47:1
2:1
1.41:1
11.55:1
10:1
8.94:1
4:1
2.83:1
65.56
62.67
78.67
68.48
68.48
Gull
Wing
PICO
Part
Number
J
Lead
PICO
Part
Number
Primary
Imped
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

Pico
Prices
1-9**

(US $)

SER
PAR
1KHz
and
higher
400Hz
and
higher
SER
CONN
PAR
CONN
SEC
SER
CONN
SEC
PAR
CONN
71575
71580
71585
71590
71595
81575
81580
81585
81590
81595
*20,000ct
25,000ct
25,000ct
30,000ct
30,000ct
20,000ct
500ct
1000ct
50ct
1200ct
-
125
250
12.5
300
.125
.1
.1
.083
.083
.075
.075
.075
.075
.075
.7
.63
.63
.58
.58
2000
2500
2500
3000
3000
2400
60
120
6
144
-
15
30
1.5
36
1:1
7.07:1
5:1
24.5:1
5:1
-
14.14:1
10:1
49:1
10:1
78.67
71.03
71.03
71.03
71.03
71600
71605
71610
71615
71620
71625
81600
81605
81610
81615
81620
81625
30,000ct
30,000ct
30,000ct
30,000ct
*30,000ct 40,000ct
500ct
200ct
5000ct
10,000ct
30,000ct
400ct
125
50
1250
2500
-
100
.083
.083
.083
.083
.083
.062
.075
.075
.075
.075
.075
.062
.58
.58
.58
.58
.58
.5
3000
3000
3000
3000
3000
4000
60
24
600
1200
3600
48
15
6
150
300
-
12
7.75:1
12.25:1
2.45:1
1.73:1
1:1
10:1
15.5:1
24.5:1
4.9:1
3.46:1
-
20:1
71.03
71.03
71.03
71.03
77.31
77.31

* INCLUDES ELECTROSTATIC SHIELD
 
 

INDUCTORS

All Inductors have split windings and measurements are listed for both series and parallel connections. Two values of inductance, each at a particular value of D.C. current, are listed for each inductor.

Pico Part Number 
Pico Part Number
Inductance Series
DC CURRENT
DC Resistance
Prices 1-9** (US $)
71705
81705
Series
0.1
.08
4
10
25
54.42
Parallel
.025
.02
8
20
6.5
71710
81710
Series
.09
.05
2
6
105
54.42
Parallel
.23
.13
4
12
26
71715
81715
Series
2.5
0.9
2
4
630
54.42
Parallel
0.6
0.23
4
8
160
71720
81720
Series
4.5
1.2
2
4
2300
57.79
Parallel
1.1
0.3
4
8
575
**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 shield design available
  • Electrostatic shielding can be added
  • Variation of standard 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

Click Here for Thru Hole Version of the 71000 and 81000 Series

 


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