Hammond 141H 600CT:600CT Ohm Low Profile PCB Audio Transformer

The 141H is a 1:1 impedance audio transformer in the 141 Series, with 600 ohm center-tapped primary and 600 ohm center-tapped secondary windings. Its low profile, open type body mounts directly on a P.C. board, so it fits designers who need a 600 ohm to 600 ohm transformer in a compact audio circuit.

Ratings are 150 milliwatts output and a maximum primary D.C. current of 2 mA. The series table gives D.C. resistance of 32 ohms primary and 45 ohms secondary; the part drawing lists per-pin values of 15.54 ohms (pins 1-2) and 15.08 ohms (pins 2-3) on the primary, and 19.35 ohms (pins 4-5) and 18.90 ohms (pins 5-6) on the secondary, all ±20%.

Typical primary inductance across pins 1-3 is 252.10 mH with a 2.05K ohm impedance at 1 kHz, 1 V open circuit, and leakage inductance is 1.48 mH. Frequency response is 200 Hz to 50 kHz within ±1.0 dB referenced at 1 kHz. Dielectric strength is 250 VRMS, with a temperature class up to 105 °C.

The core uses high grade silicon laminations (29M6). Terminals are pins 0.25" long and 0.035" in diameter, and net weight is 0.6 oz. The 141H is RoHS and REACH compliant.