Hammond 273AZ 49 VA Horizontal Plate Transformer, 650V C.T. 46mA

The 273AZ is a 49 VA high voltage (plate) and filament transformer in the horizontal (Z) mounting style. It takes a 117 VAC primary rated for 50/60 Hz and supplies a 650V center-tapped high voltage secondary at 46 mA (listed as 325-0-325 in the short description), plus a 5V @ 2A winding and a 6.3V @ 2A filament winding.

Electrically, the 273AZ is rated 49 VA with a 117 VAC, 50/60 Hz primary, a high voltage secondary rated 650V C.T. @ 46mA (RMS), and filament windings of 5V @ 2A (#1) and 6.3V @ 2A (#2). As with every 200 Series unit, it can be run full wave bridge or full wave C.T. The manufacturer's short description lists the 6.3V winding as center-tapped and the high voltage rating as 40MA, while the part page and ordering table give 46 mA.

The case is an enclosed, 4 hole, chassis mount design in the horizontal (Z) mounting style, with minimum 6 in long leads. Listed dimensions are A 2.00 in (51 mm), B 2.50 in (64 mm), C 2.50 in (64 mm), D 1.75 in (44 mm), F 2.00 in (51 mm), G 1.06 in (27 mm), H 3.00 in (76 mm), J 2.50 in (64 mm). Shipping weight is 2.4 lbs (1.09 kg).

The 273AZ is a Z-mount part, and the series notes state that most Z mounts do not use the 115V/125V primary choices offered on other 200 Series units, so check the part drawing for its available primary voltages; the listed primary is 117 VAC at 50/60 Hz. Insulation is Class A (105 degrees C), units are hi-pot tested at 2,000V RMS, the design is CSA certified (209651), and the part is RoHS and REACH compliant.