Hammond Mfg. Co. Ltd., Electronics Division
www.hammondmfg.com
140NEX
CHASSIS MOUNT – SHIELDED
IMPEDANCE MATCHING TRANSFORMER
This transformer operates in the 20 Hz to 20 KHz range.
The metal can provides excellent shielding from a broad
range of external sources. The nickel core provides high
permeability combined with low losses.
Typical applications Input/output Isolation, Line Matching,
Driver, Hybrid applications.
ELECTRICAL SPECIFICATIONS
Characteristic
Input Impedance
Output Impedance
Output Power
DCR
Primary
Secondary
Inductance
Primary
Secondary
Impedance
Primary
Secondary
Typical
4Ω
60,000 Ω
10.0 dbm
5.30 Ω
116.5 Ω
@ 1.0 kHz, 1.0 V OC
326 mH
9.30 H
@ 1.0 kHz, 1.0 V OC
2.83 kΩ
79.0 kΩ
Frequency Response
Turns ratio
±1db from 20 Hz to 20KHz
1:5.47
Insertion Loss
Return Loss
Longitudinal balance
< 0.9 db
28.0 db
-70 db
Dielectric Strength
500 Vrms
140NEX
5mW 20Hz - 20kHz
GRN - BLU: 50 Ω
RED - YEL: 1500 Ω
MADE IN CANADA
PRIMARY
50 Ω
BLU - D
GRN - C
SECONDARY
1500 Ω
F - YEL
A - RED
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
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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