Hammond 560C 12/48:150/600 Ohm Mic-to-Line Broadcast Transformer

The 560C is a broadcast quality, epoxy potted audio transformer for printed circuit boards, matching a very low 12/48 ohm primary to a 150/600 ohm secondary. It is intended for emitter or microphone to line applications, where audio and broadcast engineers need to step a low impedance source up to standard 150 or 600 ohm line levels.

The 560 Series is built in a rugged black epoxy potted case with 9 pin connections (.025" square by 0.5" long) for P.C. board mounting. An electrostatic shield between primary and secondary is connected to the core and brought out to pin "SH", the construction is humbucking, and balanced split windings on both primary and secondary add circuit versatility; primaries and secondaries can also be reversed for impedance matching. Insertion loss is 1 dB maximum, and higher signal levels are possible with reduced low frequency performance.

The 560C is rated at 0 dbm across 30 Hz to 30 kHz, typically +/- 0.5 dB at +0 dbm and +/- 1.0 dB at +10 and +27 dbm (measured with no D.C. saturation). Typical values include primary DCR 0.91 ohms (1-4), secondary DCR 14.00 ohms (5-8), primary inductance 85.62 mH, secondary inductance 0.916 H, leakage inductance 0.042 mH and a 1.736:1 turns ratio. Dielectric strength is 500 Vrms and the epoxy's workable temperature range is -40 to 105°C.

Series overall dimensions are 1.64" (41.7 mm) x 1.33" (33.8 mm) x 0.85" (21.6 mm) high max; the 560C drawing states 1.65" x 1.34" x 0.80". Shipping weight is 0.25 lbs (0.11 kg). Made in Canada; RoHS and REACH compliant, UPC 623980279305.