Hammond Mfg. Co. Ltd., Electronics Division www.hammondmfg.com 140REX 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. While 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 RED – BRN BRN – YEL Secondary Inductance Primary Secondary Impedance Primary Secondary Typical 600CT Ω 150 Ω 10.0 dbm 72.4 Ω 36.2 Ω 36.2 Ω 18.2 Ω @ 1.0 kHz, 1.0 V OC 3.62 H 0.88 H @ 1.0 kHz, 1.0 V OC 61.5 kΩ 15.6 kΩ 140REX 5mW 20Hz - 20kHz RED - BRN - YEL: 600 Ω CT GRN - BLU: 150 Ω MADE IN CANADA DATE SCHEMATIC DIAGRAM PRIMARY Frequency Response Turns ratio ±1db from 20 Hz to 20KHz 2:1 RED Insertion Loss Return Loss Longitudinal balance < 1.0 db 22.5 db -65 db 600 ΩCT Dielectric Strength 500 Vrms SECONDARY GREEN 150 Ω BROWN YELLOW BLUE TYPICAL TEST CIRCUIT PRIMARY R S/ SECONDARY 2 RL R S/ OUT 2 Measurement instruments Hp4192a impedance analyzer Hp3456a DVM Keithley 2002 DVM D scope series iii audio analyzer 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.