Hammond 266JB6 7.6VA Filament Transformer, 6.3V C.T. at 1.2A

The 266JB6 is a small 7.6 VA filament and low-voltage transformer rated 6.3 V center tapped at 1.2 A, or 3.15 V at 2.4 A with the secondaries in parallel, for panel and chassis builds that need a 6.3 V winding. It belongs to the Hammond 266 Series of low voltage/filament transformers and is aimed at OEM engineers, repair technicians and panel builders who mount the transformer directly to a chassis.

The primary is a dual 117/234 VAC, 50/60 Hz winding: connect the two primary halves in parallel for 117 V or in series for 234 V. The dual secondaries can be used as a center-tapped secondary (6.3V @ 1.2A), connected in parallel (3.15V @ 2.4A) or used individually, and the unit is designed for use with all windings engaged.

Construction is open style with a dual bobbin design, so no electrostatic shield is required. Hammond uses Class B (130 °C) insulation for extra protection, while the design is UL listed as Class A (105 °C). Every unit is hi-pot tested at 2,000V RMS, and all leads are a minimum of 6 in long. The transformer is UL listed (# E207860) Type 3AH, CSA certified (209651), and RoHS and REACH compliant.

The 266JB6 uses mounting style A with 0.19 in (5 mm) mounting holes. Its listed dimensions are A 2.82 in (72 mm), B 1.69 in (43 mm), C 1.69 in (43 mm) and D 2.38 in (60 mm). It weighs 0.7 lbs (0.32 kg) and ships at 0.7 lbs (0.32 kg).