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: 3420 matches based on your selection| Part Number | Primary Impedance Ohms | Secondary Impedance Ohms Split Windings SER | Secondary Impedance Ohms Split Windings PAR | Maximum Voltage at 1 KHz Volts | Power Watts 1 KHz and higher | Maximum Voltage at 300 Hz Volts | Power Watts 300 Hz and higher | Maximum Voltage at 75 Hz Volts | Power Watts 75 Hz and higher | Primary Unbalanced DC Current (ma) | Primary DC Resistance (Ohms) | Secondary DC Resistance Ohms SER CONN | Secondary DC Resistance Ohms PAR CONN | Turns Ratio Prim/Sec SEC SER CONN | Turns Ratio Prim/Sec SEC PAR CONN | Frequency Response (± db) | Frequency Response Range at 1 milliwatt | Price (US $) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| CSR255 | *1200 ct | 1200 ct | 42.43 | 1.5 | 32.9 | 0.9 | 6 | 0.03 | 3 | 96 | 114 | 1:1 | 3 | 75 Hz to 30 KHz | $70.64 | |||
| CSR260 | 1500 ct | 12 ct | 3 | 47.43 | 1.5 | 36.7 | 0.9 | 6.7 | 0.03 | 2.5 | 120 | 1.14 | 0.29 | 11.18:1 | 22.36:1 | 3 | 75 Hz to 30 KHz | $67.84 |
| CSR265 | 1500 ct | 500 ct | 125 | 47.43 | 1.5 | 36.7 | 0.9 | 6.7 | 0.03 | 2.5 | 120 | 47.5 | 11.88 | 1.73:1 | 3.46:1 | 3 | 75 Hz to 30 KHz | $67.84 |
| CSR270 | *1500 ct | 600 ct | 15 | 1.5 | 36.7 | 0.9 | 6.7 | 0.03 | 2.5 | 120 | 57 | 1.58:1 | 3 | 75 Hz to 30 KHz | $70.64 | |||
| CSR275 | *1500 ct | 1500 ct | 15 | 1.5 | 36.7 | 0.9 | 6.7 | 0.03 | 2.5 | 120 | 142 | 1:1 | 3 | 75 Hz to 30 KHz | $70.64 | |||
| CSR280 | 1600 ct | 12.8 ct | 3.2 | 48.99 | 1.5 | 37.9 | 0.9 | 6.9 | 0.03 | 2.5 | 128 | 1.22 | 3 | 11.18:1 | 22.36:1 | 3 | 75 Hz to 30 KHz | $67.84 |
| CSR283 | 2000 ct | 8 ct | 2 | 54.77 | 1.5 | 42.4 | 0.9 | 7.7 | 0.03 | 2.2 | 160 | 0.76 | 0.19 | 15.8:1 | 31.6:1 | 3 | 75 Hz to 30 KHz | $67.84 |
| CSR285 | 2000 ct | 2000 ct | 500 | 54.77 | 1.5 | 42.4 | 0.9 | 7.7 | 0.03 | 2.2 | 160 | 190 | 47.5 | 1:1 | 2:1 | 3 | 75 Hz to 30 KHz | $67.84 |
| CSR290 | *2000 ct | 2000 ct | 54.77 | 1.5 | 42.4 | 0.9 | 7.7 | 0.03 | 2.2 | 160 | 190 | 1:1 | 3 | 75 Hz to 30 KHz | $70.64 | |||
| CSR295 | 2000 ct | 8000 ct | 2000 | 54.77 | 1.5 | 42.4 | 0.9 | 7.7 | 0.03 | 2.2 | 160 | 760 | 190 | 1:2 | 1:1 | 3 | 75 Hz to 30 KHz | $67.84 |
| CSR297 | 2500 ct | 2500 ct | 625 | 61.24 | 1.5 | 47.4 | 0.9 | 8.7 | 0.03 | 2 | 200 | 238 | 59.5 | 1:1 | 2:1 | 3 | 75 Hz to 30 KHz | $67.84 |
| CSR300 | 3000 ct | 3000 ct | 750 | 67.08 | 1.5 | 52 | 0.9 | 9.5 | 0.03 | 1.8 | 240 | 285 | 71.3 | 1:1 | 2:1 | 3 | 75 Hz to 30 KHz | $67.84 |