Hammond Mfg. Co. Ltd., Electronics Division
www.hammondmfg.com
107X
6
MINIATURE EPOXY POTTED AUDIO TRANSFORMER
Audio input, line matching and output transformers
Epoxy potted in an attractive molded case, Pin type, P.C. board
mount, (min. 0.187” length)
Rugged epoxy potted construction produces a completely
sealed unit withstanding severe environmental conditions.
In some models where no center tap is present (on the secondary), pin 5 is omitted.
Secondary may be used as primary and primary as secondary.
Will withstand soldering for 10 sec. @ 260 degrees C, ambient temp. 85 degrees C max.
Power level: 150mw @ 150 Hz. to 50 Khz.
-Freq. range @ +0 dbm is 150 Hz. to 80 Khz. +/- 1.5db
-Freq. range @ +10 dbm is 150 Hz. to 80 Khz. +/- 1.5db
-Freq. range @ +20 dbm is 150 Hz. to 80 Khz. +/- 1.5db
-Freq. measurements with no D.C. saturation.
5
4
107X
MADE IN
CANADA
2
1
6
5
3
4
107X
ELECTRICAL SPECIFICATIONS
CANADA
1
Characteristic
Input Impedance
Output Impedance
Output Power
DCR
Primary 1-3
Secondary 4-6
Inductance
Primary
Secondary
3.66KΩ (2.15KΩ/1.51KΩ)
75 Ω (37.5Ω/37.5Ω)
@ 1.0 kHz, 1.0 V OC
56.7 Hy
0.83 Hy
Impedance
Primary
Secondary
@ 1.0 kHz, 1.0 V OC
300 KΩ
3.90 KΩ
2
3
Typical
100000 ΩCT
1000 ΩCT
0.150 Watts
SCHEMATIC DIAGRAM
PRIMARY
1
Frequency Response ±1.5db from 300Hz to 50KHz
Turns ratio
10:1
Dielectric Strength
Temperature Range
SECONDARY
6
500 Vrms
-40 To 105°C**
100000 Ω CT 2
5 1000 ΩCT
PCB LAYOUT
3
4
TYPICAL TEST CIRCUIT
PRIMARY
R S/
SECONDARY
2
RL
Measurement instruments
Hp4192a impedance analyzer
Hp3456a DVM
Keithley 2002 DVM
D scope series iii audio analyzer
R S/
OUT
2
** The epoxy that is used to cast these parts has a workable temperature range of –40°C to +105°C
Under a normal rate of change, this does not include thermal shock.
Variations in the transformer materials and environmental conditions may reduce the workable temperature range.
This drawing and the information in it is the property of Hammond Manufacturing. It may not be reproduced, transmitted or used in any manner whatsoever without the written permission of
Hammond Manufacturing. Data subject to change without notice.
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