Audio Transformers
Audio Transformers are transformers that are used over the audio frequency range. Audio Transformers are used in a variety of applications. They can provide galvanic isolation, signal gain/loss, match impedances between two interfaces, can be used as a reference and to provide feedback signal. Pico Electronics’ Audio Transformers are manufactured to MIL-PRF-27 Grade 5 Class S. These ultra-miniature transformers are made for durability while maintaining their electrical characteristics. All catalog transformers are manufactured to meet Mil-Std-202, method 107, thermal shock from -55°C to +130°C. All units can be manufactured with a 300 thermal cycle guarantee. Standard as well as custom designs are available. Pico Electronics, Inc. is an approved QPL source.
Note: All PICO products can be modified to your specifications. Please contact us for information.
To view complete series and specifications click on part number. Search Results: 3424 matches based on your selection| Part Number | Primary Impedance Ohm | Secondary Impedance Ohms Split Windings SER | Secondary Impedance Ohms Split Windings PAR | Frequency Response(±db) | Power Watt 1 KHz and higher | Power Watt 300 Hz and higher | Power Watt 50 Hz and higher | Primary Unbalanced DC Current mA | Primary DC Resistance Ohm | Secondary DC Resistance Ohm SER CONN | Secondary DC Resistance Ohm PAR CONN | Turns Ratio Prim/Sec SEC SER CONN | Turns Ratio Prim/Sec SEC PAR CONN |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| S-21330 | 5000 ct | 5000 ct | 1250.00 | 3 | 2.000 | 1.50 | 0.03 | 1.40 | 400.00 | 550.00 | 138.00 | 1:01 | 2:01 |
| S-21335 | 7500 ct | 50 ct | 12.50 | 3 | 1.300 | 1.30 | 0.03 | 1.20 | 600.00 | 5.50 | 1.38 | 12.25:1 | 24.5:1 |
| S-21340 | 7500 ct | 100 ct | 25.00 | 3 | 1.300 | 1.30 | 0.03 | 1.20 | 600.00 | 11.00 | 2.75 | 8.66:1 | 17.32:1 |
| S-21345 | 7500 ct | 600 ct | 150.00 | 3 | 1.300 | 1.30 | 0.03 | 1.20 | 600.00 | 66.00 | 16.50 | 3.54:1 | 7.07:1 |
| S-21350 | 7500 ct | 2500 ct | 625.00 | 3 | 1.300 | 1.30 | 0.03 | 1.20 | 600.00 | 275.00 | 69.00 | 1.73:1 | 3.46:1 |
| S-21355 | *7500 ct | 7500 ct | 0.00 | 3 | 1.300 | 1.30 | 0.03 | 1.20 | 600.00 | 825.00 | 0.00 | 1:01 | - |
| S-21360 | 8000 ct | 12.8 ct | 3.20 | 3 | 1.200 | 1.20 | 0.03 | 1.10 | 640.00 | 1.40 | 0.35 | 25:01:00 | 50:01:00 |
| S-21365 | 8000 ct | 1000 ct | 250.00 | 3 | 1.200 | 1.20 | 0.03 | 1.10 | 640.00 | 110.00 | 27.50 | 2.83:1 | 5.66:1 |
| S-21370 | *8000 ct | 1200 ct | 0.00 | 3 | 1.200 | 1.20 | 0.03 | 1.10 | 640.00 | 132.00 | 0.00 | 2.58:1 | - |
| S-21375 | *9000 ct | 9000 ct | 0.00 | 3 | 1.100 | 1.10 | 0.03 | 1.10 | 720.00 | 990.00 | 0.00 | 1:01 | - |
| S-21380 | 10,000 ct | 12.8 ct | 3.20 | 3 | 1.000 | 1.00 | 0.03 | 1.00 | 800.00 | 1.40 | 0.35 | 28:01:00 | 56:01:00 |
| S-21385 | 10,000 ct | 16 ct | 4.00 | 3 | 1.000 | 1.00 | 0.03 | 1.00 | 800.00 | 1.76 | 0.44 | 25:01:00 | 50:01:00 |
| S-21390 | 10,000 ct | 100 ct | 25.00 | 3 | 1.000 | 1.00 | 0.03 | 1.00 | 800.00 | 11.00 | 2.75 | 10:01 | 20:01 |
| S-21395 | 10,000 ct | 200 ct | 50.00 | 3 | 1.000 | 1.00 | 0.03 | 1.00 | 800.00 | 22.00 | 5.50 | 7.07:1 | 14.14:1 |
| S-21400 | 10,000 ct | 500 ct | 125.00 | 3 | 1.000 | 1.00 | 0.03 | 1.00 | 800.00 | 55.00 | 13.75 | 4.47:1 | 8.94:1 |
| S-21405 | 10,000 ct | 600 ct | 150.00 | 3 | 1.000 | 1.00 | 0.03 | 1.00 | 800.00 | 66.00 | 16.50 | 4.08:1 | 8.16:1 |
| S-21410 | 10,000 ct | 1000 ct | 250.00 | 3 | 1.000 | 1.00 | 0.03 | 1.00 | 800.00 | 110.00 | 27.50 | 3.16:1 | 6.32:1 |
| S-21415 | 10,000 ct | 1200 ct | 300.00 | 3 | 1.000 | 1.00 | 0.03 | 1.00 | 800.00 | 132.00 | 33.00 | 2.89:1 | 5.77:1 |
| S-21420 | 10,000 ct | 1500 ct | 375.00 | 3 | 1.000 | 1.00 | 0.03 | 1.00 | 800.00 | 165.00 | 41.30 | 2.58:1 | 5.16:1 |
| S-21425 | 10,000 ct | 2000 ct | 500.00 | 3 | 1.000 | 1.00 | 0.03 | 1.00 | 800.00 | 220.00 | 55.00 | 2.24:1 | 4.47:1 |
| S-21430 | 10,000 ct | 5000 ct | 1250.00 | 3 | 1.000 | 1.00 | 0.03 | 1.00 | 800.00 | 550.00 | 138.00 | 1.41:1 | 1.83:1 |
| S-21435 | 10,000 ct | 7500 ct | 1875.00 | 3 | 1.000 | 1.00 | 0.03 | 1.00 | 800.00 | 825.00 | 206.00 | 1.16:1 | 2.31:1 |
| S-21440 | 10,000 ct | 10,000 ct | 2500.00 | 3 | 1.000 | 1.00 | 0.03 | 1.00 | 800.00 | 1100.00 | 275.00 | 1:01 | 2:01 |
| S-21445 | *10,000 ct | 10,000 ct | 0.00 | 3 | 1.000 | 1.00 | 0.03 | 1.00 | 800.00 | 1100.00 | 0.00 | 1:01 | - |
| S-21450 | 15,000 ct | 400 ct | 100.00 | 3 | 0.650 | 0.65 | 0.03 | 0.80 | 1200.00 | 44.00 | 11.00 | 6.12:1 | 12.25:1 |
| S-21452 | 15,000 ct | 500 ct | 125.00 | 3 | 0.650 | 0.65 | 0.03 | 0.80 | 1200.00 | 55.00 | 13.80 | 5.48:1 | 10.95:1 |
| S-21455 | 15,000 ct | 600 ct | 150.00 | 3 | 0.650 | 0.65 | 0.03 | 0.80 | 1200.00 | 66.00 | 16.50 | 5:01 | 10:01 |
| S-21460 | 15,000 ct | 10,000 ct | 2500.00 | 3 | 0.650 | 0.65 | 0.03 | 0.80 | 1200.00 | 1100.00 | 275.00 | 1.22:1 | 2.45:1 |
| S-21465 | *15,000 ct | 15,000 ct | 0.00 | 3 | 0.650 | 0.65 | 0.03 | 0.80 | 1200.00 | 1650.00 | 0.00 | 1:01 | - |
| S-21470 | 15,000 ct | 15,000 ct | 3750.00 | 3 | 0.650 | 0.65 | 0.03 | 0.80 | 1200.00 | 1650.00 | 413.00 | 1:01 | 2:01 |
| S-21475 | 16,000 ct | 1000 ct | 250.00 | 3 | 0.620 | 0.62 | 0.03 | 0.80 | 1280.00 | 110.00 | 27.50 | 4:01 | 8:01 |
| S-21480 | 20,000 ct | 500 ct | 125.00 | 3 | 0.500 | 0.50 | 0.03 | 0.70 | 1600.00 | 55.00 | 13.80 | 6.32:1 | 12.65:1 |
| S-21485 | 20,000 ct | 600 ct | 150.00 | 3 | 0.500 | 0.50 | 0.03 | 0.70 | 1600.00 | 66.00 | 16.50 | 5.77:1 | 11.55:1 |
| S-21490 | 20,000 ct | 800 ct | 200.00 | 3 | 0.500 | 0.50 | 0.03 | 0.70 | 1600.00 | 88.00 | 22.00 | 5:01 | 10:01 |
| S-21495 | 20,000 ct | 1000 ct | 250.00 | 3 | 0.500 | 0.50 | 0.03 | 0.70 | 1600.00 | 110.00 | 27.50 | 4.47:1 | 8.94:1 |
| S-21500 | 20,000 ct | 5000 ct | 1250.00 | 3 | 0.500 | 0.50 | 0.03 | 0.70 | 1600.00 | 550.00 | 138.00 | 2:01 | 4:01 |
| S-21505 | 20,000 ct | 10,000 ct | 2500.00 | 3 | 0.500 | 0.50 | 0.03 | 0.70 | 1600.00 | 1100.00 | 275.00 | 1.41:1 | 2.83:1 |
| S-21510 | *20,000 ct | 20,000 ct | 0.00 | 3 | 0.500 | 0.50 | 0.03 | 0.70 | 1600.00 | 2200.00 | 0.00 | 1:01 | - |
| S-21515 | 25,000 ct | 500 ct | 125.00 | 3 | 0.400 | 0.40 | 0.03 | 0.60 | 2000.00 | 55.00 | 13.80 | 7.07:1 | 14.14:1 |
| S-21520 | 25,000 ct | 1000 ct | 250.00 | 3 | 0.400 | 0.40 | 0.03 | 0.60 | 2000.00 | 110.00 | 27.50 | 5:01 | 10:01 |
| S-21525 | 30,000 ct | 50 ct | 12.50 | 3 | 0.330 | 0.33 | 0.03 | 0.60 | 2400.00 | 5.50 | 1.38 | 24.5:1 | 49:01:00 |
| S-21530 | 30,000 ct | 1200 ct | 300.00 | 3 | 0.330 | 0.33 | 0.03 | 0.60 | 2400.00 | 132.00 | 33.00 | 5:01 | 10:01 |
| S-21532 | 30,000 ct | 500 ct | 125.00 | 3 | 0.330 | 0.33 | 0.03 | 0.60 | 2400.00 | 55.00 | 13.80 | 7.7:1 | 15.5:1 |
| S-21534 | 30,000 ct | 200 ct | 50.00 | 3 | 0.330 | 0.33 | 0.03 | 0.60 | 2400.00 | 22.00 | 5.50 | 12.2:1 | 24.5:1 |
| S-21535 | 30,000 ct | 5000 ct | 1250.00 | 3 | 0.330 | 0.33 | 0.03 | 0.60 | 2400.00 | 550.00 | 137.50 | 2.45:1 | 4.9:1 |
| S-21540 | 30,000 ct | 10,000 ct | 2500.00 | 3 | 0.330 | 0.33 | 0.03 | 0.60 | 2400.00 | 1100.00 | 275.00 | 1.73:1 | 3.46:1 |
| S-21545 | *30,000 ct | 30,000 ct | 0.00 | 3 | 0.330 | 0.33 | 0.03 | 0.60 | 2400.00 | 3300.00 | 0.00 | 1:01 | - |
| S-21550 | 40,000 ct | 400 ct | 100.00 | 3 | 0.250 | 0.25 | 0.03 | 0.50 | 3200.00 | 44.00 | 11.00 | 10:01 | 20:01 |
| S-21555 | 40,000 ct | 2000 ct | 500.00 | 3 | 0.250 | 0.25 | 0.03 | 0.50 | 3200.00 | 220.00 | 55.00 | 4.47:1 | 8.94:1 |
| S-21560 | 40,000 ct | 4000 ct | 1000.00 | 3 | 0.250 | 0.25 | 0.03 | 0.50 | 3200.00 | 440.00 | 110.00 | 3.16:1 | 6.32:1 |
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