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 75 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| R-20283 | 2000 ct | 8 ct | 2.00 | 3 | 1.500 | 0.90 | 0.03 | 2.20 | 160.00 | 0.76 | 0.19 | 15.8:1 | 31.6:1 |
| R-20285 | 2000 ct | 2000 ct | 500.00 | 3 | 1.500 | 0.90 | 0.03 | 2.20 | 160.00 | 190.00 | 47.50 | 1:01 | 2:01 |
| R-20290 | *2000 ct | 2000 ct | 0.00 | 3 | 1.500 | 0.90 | 0.03 | 2.20 | 160.00 | 190.00 | 0.00 | 1:01 | - |
| R-20295 | 2000 ct | 8000 ct | 2000.00 | 3 | 1.500 | 0.90 | 0.03 | 2.20 | 160.00 | 760.00 | 190.00 | 1:02 | 1:01 |
| R-20297 | 2500 ct | 2500 ct | 625.00 | 3 | 1.500 | 0.90 | 0.03 | 2.00 | 200.00 | 238.00 | 59.50 | 1:01 | 2:01 |
| R-20300 | 3000 ct | 3000 ct | 750.00 | 3 | 1.500 | 0.90 | 0.03 | 1.80 | 240.00 | 285.00 | 71.30 | 1:01 | 2:01 |
| R-20305 | *3000 ct | 3000 ct | 0.00 | 3 | 1.500 | 0.90 | 0.03 | 1.80 | 240.00 | 285.00 | 0.00 | 1:01 | - |
| R-20310 | 3600 ct | 3600 ct | 900.00 | 3 | 1.500 | 0.90 | 0.03 | 1.70 | 288.00 | 342.00 | 86.00 | 1:01 | 2:01 |
| R-20312 | 4000 ct | 16 ct | 4.00 | 3 | 1.500 | 0.90 | 0.03 | 1.60 | 320.00 | 1.52 | 0.38 | 15.8:1 | 31.6:1 |
| R-20314** | 4000 ct | 600 ct | 150.00 | 3 | 1.500 | 0.90 | 0.03 | 1.60 | 320.00 | 57.00 | 14.30 | 2.58:1 | 5.16:1 |
| R-20315 | 4000 ct | 1000 ct | 250.00 | 3 | 1.500 | 0.90 | 0.03 | 1.60 | 320.00 | 95.00 | 23.80 | 2:01 | 4:01 |
| R-20320 | *4000 ct | 8000 ct | 0.00 | 3 | 1.500 | 0.90 | 0.03 | 1.60 | 320.00 | 760.00 | 0.00 | 01:01.4 | - |
| R-20325 | 5000 ct | 500 ct | 125.00 | 3 | 1.500 | 0.90 | 0.03 | 1.40 | 400.00 | 47.50 | 11.88 | 3.16:1 | 6.32:1 |
| R-20330 | 5000 ct | 5000 ct | 1250.00 | 3 | 1.500 | 0.90 | 0.03 | 1.40 | 400.00 | 475.00 | 119.00 | 1:01 | 2:01 |
| R-20335 | 7500 ct | 50 ct | 12.50 | 3 | 1.300 | 0.90 | 0.03 | 1.20 | 600.00 | 4.75 | 1.19 | 12.25:1 | 24.5:1 |
| R-20340 | 7500 ct | 100 ct | 25.00 | 3 | 1.300 | 0.90 | 0.03 | 1.20 | 600.00 | 9.50 | 2.38 | 8.66:1 | 17.32:1 |
| R-20345 | 7500 ct | 600 ct | 150.00 | 3 | 1.300 | 0.90 | 0.03 | 1.20 | 600.00 | 57.00 | 14.30 | 3.54:1 | 7.07:1 |
| R-20350 | 7500 ct | 2500 ct | 625.00 | 3 | 1.300 | 0.90 | 0.03 | 1.20 | 600.00 | 238.00 | 59.50 | 1.73:1 | 3.46:1 |
| R-20355 | *7500 ct | 7500 ct | 0.00 | 3 | 1.300 | 0.90 | 0.03 | 1.20 | 600.00 | 713.00 | 0.00 | 1:01 | - |
| R-20360 | 8000 ct | 12.8 ct | 3.20 | 3 | 1.200 | 0.90 | 0.03 | 1.10 | 640.00 | 1.22 | 0.30 | 25:01:00 | 50:01:00 |
| R-20365 | 8000 ct | 1000 ct | 250.00 | 3 | 1.200 | 0.90 | 0.03 | 1.10 | 640.00 | 95.00 | 23.80 | 2.83:1 | 5.66:1 |
| R-20370 | *8000 ct | 1200 ct | 0.00 | 3 | 1.200 | 0.90 | 0.03 | 1.10 | 640.00 | 114.00 | 0.00 | 2.58:1 | - |
| R-20375 | *9000 ct | 9000 ct | 0.00 | 3 | 1.100 | 0.90 | 0.03 | 1.10 | 720.00 | 855.00 | 0.00 | 1:01 | - |
| R-20380 | 10,000 ct | 12.8 ct | 3.20 | 3 | 1.000 | 0.90 | 0.03 | 1.00 | 800.00 | 1.22 | 0.30 | 28:01:00 | 56:01:00 |
| R-20385 | 10,000 ct | 16 ct | 4.00 | 3 | 1.000 | 0.90 | 0.03 | 1.00 | 800.00 | 1.52 | 0.38 | 25:01:00 | 50:01:00 |
| R-20390 | 10,000 ct | 100 ct | 25.00 | 3 | 1.000 | 0.90 | 0.03 | 1.00 | 800.00 | 9.50 | 2.38 | 10:01 | 20:01 |
| R-20395 | 10,000 ct | 200 ct | 50.00 | 3 | 1.000 | 0.90 | 0.03 | 1.00 | 800.00 | 19.00 | 4.75 | 7.07:1 | 14.14:1 |
| R-20400 | 10,000 ct | 500 ct | 125.00 | 3 | 1.000 | 0.90 | 0.03 | 1.00 | 800.00 | 47.50 | 11.88 | 4.47:1 | 8.94:1 |
| R-20405 | 10,000 ct | 600 ct | 150.00 | 3 | 1.000 | 0.90 | 0.03 | 1.00 | 800.00 | 57.00 | 14.25 | 4.08:1 | 8.16:1 |
| R-20410 | 10,000 ct | 1000 ct | 250.00 | 3 | 1.000 | 0.90 | 0.03 | 1.00 | 800.00 | 95.00 | 23.80 | 3.16:1 | 6.32:1 |
| R-20415 | 10,000 ct | 1200 ct | 300.00 | 3 | 1.000 | 0.90 | 0.03 | 1.00 | 800.00 | 114.00 | 28.50 | 2.89:1 | 5.77:1 |
| R-20420 | 10,000 ct | 1500 ct | 375.00 | 3 | 1.000 | 0.90 | 0.03 | 1.00 | 800.00 | 143.00 | 35.80 | 2.58:1 | 5.16:1 |
| R-20425 | 10,000 ct | 2000 ct | 500.00 | 3 | 1.000 | 0.90 | 0.03 | 1.00 | 800.00 | 190.00 | 47.50 | 2.24:1 | 4.47:1 |
| R-20430 | 10,000 ct | 5000 ct | 1250.00 | 3 | 1.000 | 0.90 | 0.03 | 1.00 | 800.00 | 475.00 | 119.00 | 1.41:1 | 2.83:1 |
| R-20435 | 10,000 ct | 7500 ct | 1875.00 | 3 | 1.000 | 0.90 | 0.03 | 1.00 | 800.00 | 713.00 | 178.00 | 1.16:1 | 2.31:1 |
| R-20440 | 10,000 ct | 10,000 ct | 2500.00 | 3 | 1.000 | 0.90 | 0.03 | 1.00 | 800.00 | 950.00 | 238.00 | 1:01 | 2:01 |
| R-20445 | *10,000 ct | 10,000 ct | 0.00 | 3 | 1.000 | 0.90 | 0.03 | 1.00 | 800.00 | 950.00 | 0.00 | 1:01 | - |
| R-20450 | 15,000 ct | 400 ct | 100.00 | 3 | 0.660 | 0.66 | 0.03 | 0.80 | 1200.00 | 38.00 | 9.50 | 6.12:1 | 12.25:1 |
| R-20452 | 15,000 ct | 500 ct | 125.00 | 3 | 0.660 | 0.66 | 0.03 | 0.80 | 1200.00 | 48.00 | 12.00 | 5.48:1 | 10.95:1 |
| R-20455 | 15,000 ct | 600 ct | 150.00 | 3 | 0.660 | 0.66 | 0.03 | 0.80 | 1200.00 | 57.00 | 14.30 | 5:01 | 10:01 |
| R-20460 | 15,000 ct | 10,000 ct | 2500.00 | 3 | 0.660 | 0.66 | 0.03 | 0.80 | 1200.00 | 950.00 | 238.00 | 1.22:1 | 2.45:1 |
| R-20465 | *15,000 ct | 15,000 ct | 0.00 | 3 | 0.660 | 0.66 | 0.03 | 0.80 | 1200.00 | 1430.00 | 0.00 | 1:01 | - |
| R-20470 | 15,000 ct | 15,000 ct | 3750.00 | 3 | 0.660 | 0.66 | 0.03 | 0.80 | 1200.00 | 1430.00 | 357.00 | 1:01 | 2:01 |
| R-20475 | 16,000 ct | 1000 ct | 250.00 | 3 | 0.620 | 0.62 | 0.03 | 0.80 | 1280.00 | 95.00 | 23.80 | 4:01 | 8:01 |
| R-20480 | 20,000 ct | 500 ct | 125.00 | 3 | 0.500 | 0.50 | 0.03 | 0.70 | 1600.00 | 47.50 | 11.88 | 6.32:1 | 12.65:1 |
| R-20485 | 20,000 ct | 600 ct | 150.00 | 3 | 0.500 | 0.50 | 0.03 | 0.70 | 1600.00 | 57.00 | 14.25 | 5.77:1 | 11.55:1 |
| R-20490 | 20,000 ct | 800 ct | 200.00 | 3 | 0.500 | 0.50 | 0.03 | 0.70 | 1600.00 | 76.00 | 19.00 | 5:01 | 10:01 |
| R-20495 | 20,000 ct | 1000 ct | 250.00 | 3 | 0.500 | 0.50 | 0.03 | 0.70 | 1600.00 | 95.00 | 23.80 | 4.47:1 | 8.94:1 |
| R-20500 | 20,000 ct | 5000 ct | 1250.00 | 3 | 0.500 | 0.50 | 0.03 | 0.70 | 1600.00 | 475.00 | 119.00 | 2:01 | 4:01 |
| R-20505 | 20,000 ct | 10,000 ct | 2500.00 | 3 | 0.500 | 0.50 | 0.03 | 0.70 | 1600.00 | 950.00 | 238.00 | 1.41:1 | 2.83:1 |
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