500:8 Ohm CT-Primary Potted Output Transformer

The 104R is a miniature output audio transformer in the 104 Series that matches a 500 ohm center-tapped primary to an 8 ohm secondary. Rated at 500 mW, it is intended for P.C. board audio output circuits driving an 8 ohm load.

Bifilar winding is used on the center-tapped primary for balanced resistive and capacitive characteristics. The transformer is potted in rugged black epoxy for a completely sealed unit that withstands severe environmental conditions, including those of MIL-T-27 (Grade 5, Class S). It mounts on 0.025 in square typical pins that are 0.11 in +/-15% long, and unused connections carry no pin.

Specifications for the 104R:

• Maximum primary DC: 6 mA
• DC resistance: 27 ohms primary, 0.9 ohms secondary, +/- 15%
• Output: 500 mW
• Insertion loss: 1 dB
• Low frequency roll-off: 200 Hz at -1 dB
• Peak working voltage: 200 V
• Drawing figure: 3

The 104R is RoHS and REACH compliant, with a shipping weight of 0.05 lbs (0.02 kg). Its 3.2 ohm counterpart is the 104Q, which shares the same primary and power rating. This part carries UPC 623980180304 and UNSPSC 39121301.