Hammond 164J48 36VA 48V C.T. Low Profile PCB Power Transformer

The 164J48 is a 36VA low voltage power transformer for printed circuit board mounting, built in a low profile, split bobbin format. It has an economical single 115V primary for 50/60 Hz operation and a dual-winding secondary that delivers 48V C.T. @ .75A when the windings are connected in series, or 24V @ 1.5A when they are connected in parallel. It suits OEM engineers and electronics designers who need a compact board-level AC source at 48V centre-tapped or 24V.

The two secondary windings are non-concentrically wound, which keeps primary-to-secondary coupling low so no electrostatic shield is required. The unit is designed so that all windings must be used. Insulation is Class B (130 degrees C) and the transformer is hipot tested at 2,500V RMS. It is c UL us recognized and listed as RoHS and REACH compliant.

As a 36VA (J-size) model in the 162-164 series, the 164J48 measures 2.63 in long, 2.19 in wide and 1.56 in high on the series mechanical table, with a listed weight of 1.1 lbs and a shipping weight of 1.04 lbs (0.47 kg). It uses industry standard PCB pin spacing and four-hole mounting (mounting screws not provided), sized for #6 screws.

If your design needs a universal dual 115/230V primary rather than 115V only, the series ordering table pairs this part with the dual-primary 162J48, which has the same 36VA rating and secondary values.