Low Voltage - P.C. Board Mount (226-228 Series) Power Transformer Schematic 3 4 1 2 5 6 PRI SEC LOW PROFILE - EPOXY CAST P.C. MOUNT POWER TRANSFORMERS • Primary 115 VAC, 60 or 400Hz. models, 3 case sizes • Epoxy cast to withstand shock and severe environments • Two coil design provides balanced windings and low magnetic radiation - no electrostatic shield required. • 228 series include four, 6-32 X .38 machine screw inserts for less strain on p.c. board connections. 226 SERIES Secondary (RMS) Part Size Freq. No. (VA) (Hz) Series Parallel 226D 1 60 20V C.T. @ 50ma 10V @ 100ma 226F 1 60 30V C.T. @ 34ma 15V @ 67ma 226H 1 60 40V C.T. @ 25ma 20V @ 50ma 226N 20 400 20V C.T. @ 1A 10V @ 2A 226P 20 400 26V C.T. @ 770ma 13V @ 1.54A 226R 20 400 30V C.T. @ 670ma 15V @ 1.33A 226T 20 400 40V C.T. @ 500ma 20V @ 1A Temp. Rise (C) 25 25 25 35 35 35 35 % Regul. 19.7 21.7 18.9 7.2 7.6 7.5 7.2 Temp. Rise (C) 25 25 25 45 45 45 45 % Regul. 20.1 24 26 6 5.7 6 5.7 Temp. Rise (C) 20 20 20 % Regul. 12.2 12.5 12.2 0.22 lbs. 0.80" High Max. 0.04" Pin Dia. 227 SERIES Secondary (RMS) Part Size Freq. No. (VA) (Hz) Series Parallel 227D 5 60 20V C.T. @ 250ma 10V @ 500ma 227F 5 60 30V C.T. @ 170ma 15V @ 340ma 227H 5 60 40V C.T. @ 125ma 20V @ 250ma 227N 40 400 20V C.T. @ 2A 10V @ 4A 227P 40 400 26V C.T. @ 1.54A 13V @ 3.08A 227R 40 400 30V C.T. @ 1.33A 15V @ 2.66A 227T 40 400 40V C.T. @ 1A 20V @ 2A 0.38 lbs 1.05" High Max. 0.05" Pin Dia. 228 SERIES Secondary (RMS) Part Size Freq. No. (VA) (Hz) Series Parallel 228D 10 60 20V C.T. @ 500ma 10V @ 1A 228F 10 60 30V C.T. @ 340ma 15V @ 670ma 228H 10 60 40V C.T. @ 250ma 20V @ 500ma 0.91 lbs 1.22" High Max. 0.05" Pin Dia. CANADA © EUROPE Guelph, Ontario (519) 822-2960 St. Laurent, Quebec (514) 343-9010 www.hammondmfg.com Cheektowaga, NY (716) 630-7030 18 USA Basingstoke, UK 01256 812812 AUSTRALIA Queenstown, Australia 61-8-8240-2244