Hammond 187F120 120V CT 102VA Chassis Mount Power Transformer

The 187F120 is a 115 VAC single-primary power transformer from the 187 Series, rated 102 VA with a 120V C.T. secondary at 0.85 A. It is an open style, channel frame design built to mount directly to a chassis, suited to OEM engineers and equipment builders who need a compact low-voltage supply transformer that runs on 50/60 Hz mains.

The 187F120 is the higher-voltage member of the F frame: a 120 V centre-tapped secondary rated 0.85 A, and at 102 VA it shares the top VA rating listed in the 186-187 series table with its dual-primary equivalent.

Construction uses a split bobbin, which eliminates the need for an electrostatic shield, and Class B (130 C) insulation. Temperature rise is designed not to exceed Class A for longer life. Combination solder or quick connect terminals let you choose between soldered leads and push-on connectors, and every unit in the series is hi-pot tested to 2 KV RMS.

Dimensions follow the F frame size of the series table: length 4.03 in (102 mm), depth 2.25 in (57 mm) not including terminals or 2.62 in (67 mm) to the terminals, height 2.56 in (65 mm), and 3.50 in (89 mm) mounting centres. Shipping weight is 2.7 lbs (1.22 kg). If your design needs a 115/230 VAC dual primary with the same secondary, the series table lists 186F120 as the equivalent 186 Series part.

The series is UL listed (# E207860) Type 3AH and CSA Certified, and the 187F120 is RoHS and REACH compliant.