Hammond 164E56 2.4VA 56V Center-Tapped PCB Transformer, 115V Primary

The 164E56 is a 2.4VA low-voltage power transformer designed to mount directly on a printed circuit board. It has a single 115V primary rated for 50/60 Hz operation and a low-profile, split bobbin construction, making it a fit for OEM engineers and board designers who need a 56V centre-tapped secondary in a compact footprint. The secondaries are rated 56V C.T. at 0.045A (series) or 28V at 0.09A (parallel).

Construction uses dual secondary windings, non-concentrically wound, which gives low primary-to-secondary coupling without the need for an electrostatic shield. The insulation system is Class B, rated 130 degrees C, with a 2,500V RMS hipot. All windings are intended to be used together in either the series or the parallel connection.

The E-size body measures 1.38 in long by 1.13 in wide by 1.19 in high and weighs 0.25 lb per the series specification sheet. At 2.4VA it needs no mounting hardware: the unit is held by its P.C. board pins, which use industry-standard pin spacing.

The transformer is c UL us recognized and listed as RoHS and REACH compliant. Where a design must run from 115V or 230V, the dual-primary equivalent in the same series is 162E56.