Hammond Mfg. - Power Transformer - (226-228 Series)

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Low Profile
Epoxy Cast
P.C. Mount - Power Transformers

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Key Features:

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.

Mechanical & Schematic Data:

Confused about phasing or
primary & secondary connections?

Connection FAQ Link

228 3-D Drawing

226-228 Schematic

226 Series:

Part No.	Size (VA)	Freq. (Hz)	Secondary (RMS)		Temp. Rise (C)	% Regulation
Part No.	Size (VA)	Freq. (Hz)	Series	Parallel	Temp. Rise (C)	% Regulation
226D	1	60	20V C.T. @ 50ma	10V @ 100ma	25	19.7
226F	1	60	30V C.T. @ 34ma	15V @ 67ma	25	21.7
226H	1	60	40V C.T. @ 25ma	20V @ 50ma	25	18.9
226N	20	400	20V C.T. @ 1A	10V @ 2A	35	7.2
226P	20	400	26V C.T. @ 770ma	13V @ 1.54A	35	7.6
226R	20	400	30V C.T. @ 670ma	15V @ 1.33A	35	7.5
226T	20	400	40V C.T. @ 500ma	20V @ 1A	35	7.2

226 Picture
0.22 lbs.
0.80" High Max.
0.04" Pin Dia.
226 Mechanicals

227 Series:

Part No.	Size (VA)	Freq. (Hz)	Secondary (RMS)		Temp. Rise (C)	% Regulation
Part No.	Size (VA)	Freq. (Hz)	Series	Parallel	Temp. Rise (C)	% Regulation
227D	5	60	20V C.T. @ 250ma	10V @ 500ma	25	20.07
227F	5	60	30V C.T. @ 170ma	15V @ 340ma	25	24
227H	5	60	40V C.T. @ 125ma	20V @ 250ma	25	26
227N	40	400	20V C.T. @ 2A	10V @ 4A	45	6
227P	40	400	26V C.T. @ 1.54A	13V @ 3.08A	45	5.7
227R	40	400	30V C.T. @ 1.33A	15V @ 2.66A	45	6
227T	40	400	40V C.T. @ 1A	20V @ 2A	45	5.7

227 Picture

0.38 lbs.
1.05" High Max.
0.05" Pin Dia.

227 Mechanicals

228 Series:

Part No.	Size (VA)	Freq. (Hz)	Secondary (RMS)		Temp. Rise (C)	% Regulation
Part No.	Size (VA)	Freq. (Hz)	Series	Parallel	Temp. Rise (C)	% Regulation
228D	10	60	20V C.T. @ 500ma	10V @ 1A	20	12.2
228F	10	60	30V C.T. @ 340ma	15V @ 670ma	20	12.5
228H	10	60	40V C.T. @ 250ma	20V @ 500ma	20	12.2

228 Picture

0.91 lbs.
1.22" High Max.
0.05" Pin Dia.

228 Mechanicals

Downloads

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