Hammond Mfg. - Miniature Epoxy Potted Audio Transformers - (102

Miniature Audio
Epoxy Potted
P.C. Board Mount

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Close-Up (102 Series)	102, 104, 106 Series Group Photo	Caliper in photo opened to 1" (25.4mm)
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Key Features:

Output power models from 5 to 1,500 milliwatt level available.
P.C. board mount - square pin type (0.025" square typical) - see mechanical information below for lengths.
Bifilar winding technique used on center tapped units for balanced resistive and capacitive characteristics.
Rugged black epoxy potted construction produces a completely sealed unit withstanding severe environmental conditions including those of MIL-T-27 (Grade 5, Class S).
For the more economical open type P.C. mount types please refer to the 148 & 149 series.
Peak working voltage rating of: 100V (102 Series) & 200V (104 & 106 Series).
Referring to figures 1-9, if connection is not used - no pin will exist.

Part Number	Typical Applicaton	Nominal Impedance (Ohms)		Max. Primary D.C. ma. (*1)	D.C. Resistance (Ohms) +/- 15%		Output Milliwatts (*2)	Insertion Loss db *(3)**	Low Frequency Roll Off -1 db (Hz.) *(4)**	Drawing Figure
Part Number	Typical Applicaton	Primary	Secondary	Max. Primary D.C. ma. (*1)	Primary	Secondary	Output Milliwatts (*2)	Insertion Loss db *(3)**	Low Frequency Roll Off -1 db (Hz.) *(4)**	Drawing Figure
102B	Input	50	1,500	0	4	95	20	1.5	310	1
102D	Input	600	1,500	0	43	85	20	1.5	310	1
102H	Interstage	2,000	500 ct	5.6	341	62	20	1.5	310	2
102J	Interstage	6,000	2,000 ct	2.8	900	260	20	1.5	310	2
102K	Interstage	10,000	2,000 ct	2.5	1585	260	20	1.5	310	2

104B	Input	150	80,000	0	6.6	3730	5	1	60	5
104H	Interstage	10,000	2,000 ct	3.2	675	89	35	1	200	6
104K	Interstage	20,000	1,000 ct	3.2	790	125	35	1	200	6
104L	Interstage	25,000	600 ct	2	1890	50	35	1	200	6
104Q	Output	500 ct	3.2	6	27	0.4	500	1	200	3
104R	Output	500 ct	8	6	27	0.9	500	1	200	3
104S	Output	600 ct	150 ct	6	47	10.6	500	1	200	4

106C	Input	50,000	1,500 ct	0	2400	52	10	1	60	7
106E	Input	600 ct	600	9	65	83	500	1	150	8
106EE	Input	600 ct	600 ct	9	65	83	500	1	150	9
106G	Interstage	4,000	600 ct	10	340	24	150	1	215	7
106H	Interstage	4,000	2,600 ct	10	340	100	150	1	215	7
106J	Interstage	10,000	2,000 ct	6.5	700	89	150	1	215	7
106M	Interstage	20,000	2,000 ct	4.5	1180	89	150	1	215	7
106Q	Output	48 ct	3.2	32	2.4	0.3	1,500	1	170	8
106R	Output	48 ct	8	32	2.4	0.7	1,500	1	170	8
106S	Output	100 ct	3.2	22	4.4	0.3	1,500	1	170	8
106T	Output	100 ct	8	22	4.4	0.7	1,500	1	170	8
106V	Output	250 ct	8	14	11	0.7	1,500	1	170	8
106W	Output	500 ct	3.2	10	26	0.3	1,500	1	170	8
106X	Output	500 ct	8	10	26	0.7	1,500	1	170	8

NOTES:
*1) Where primary is center-tapped, this figure is the maximum unbalance
*2) When operating at impedances below normal, power capability and the frequency spectrum are proportionally lower, conversely, at higher impedances power capability and frequency spectrum will be proportionately higher.
*3) Insertion loss measured at 1000 Hz.
*4) Approximate frequency in hertz at which the output, at rated load and D.C. unbalance, is 1 db below the 1000 Hertz rating. The high frequency roll-off point exceeds 20 Khz. (Above 35 Khz. in most types).

Mechanical & Schematic Data:

102 Series	104 Series	106 Series
click to enlarge	click to enlarge	click to enlarge

102 Line Art
102 Series (0.5" high, Net Wt. 0.32 oz.)
Pin mount - 0.130" long typical
Bottom View

104 Series (0.75" high, Net Wt. 0.8 oz.)
Pin mount - 0.168" long typical
Bottom View

106 Series (0.95" high, Net Wt. 1.45 oz.)
Pin mount - 0.225" long typical
Bottom View

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